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Journal articles on the topic 'Imaging process evaluation'

Author: Grafiati

Published: 4 June 2021

Last updated: 12 February 2022

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1

Larsson, Joakim, Anton Jansson, and Patrik Karlsson. "Monitoring and evaluation of the wire drawing process using thermal imaging." International Journal of Advanced Manufacturing Technology 101, no. 5-8 (November 28, 2018): 2121–34. http://dx.doi.org/10.1007/s00170-018-3021-7.

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2

YONEMOCHI, Etsuo. "Evaluation of the Manufacturing Process for Pharmaceuticals by Using Micro-imaging Analysis." Oleoscience 17, no. 8 (2017): 379–85. http://dx.doi.org/10.5650/oleoscience.17.379.

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3

Lye, Carolyn T., Harlan M. Krumholz, Jillian E. Eckroate, Jodi G. Daniel, Dave deBronkart, Marilyn K. Mann, Allen L. Hsiao, and Howard P. Forman. "Evaluation of the Patient Request Process for Radiology Imaging in U.S. Hospitals." Radiology 292, no. 2 (August 2019): 409–13. http://dx.doi.org/10.1148/radiol.2019190473.

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4

Makein, Lisa J., Linda H. Kidder, E. Neil Lewis, and Maurizio Valleri. "Non-Destructive Evaluation of Manufacturing Process Changes Using near Infrared Chemical Imaging." NIR news 19, no. 7 (November 2008): 11–15. http://dx.doi.org/10.1255/nirn.1097.

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Bagga, Mun Bhawni, C. Anand Kumar, and Garima Yeluri. "Clinicoradiologic evaluation of styloid process calcification." Imaging Science in Dentistry 42, no. 3 (2012): 155. http://dx.doi.org/10.5624/isd.2012.42.3.155.

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6

Petermann, Simon, Stefan Kniesburges, Anke Ziethe, Anne Schützenberger, and Michael Döllinger. "Evaluation of Analytical Modeling Functions for the Phonation Onset Process." Computational and Mathematical Methods in Medicine 2016 (2016): 1–10. http://dx.doi.org/10.1155/2016/8469139.

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The human voice originates from oscillations of the vocal folds in the larynx. The duration of the voice onset (VO), called the voice onset time (VOT), is currently under investigation as a clinical indicator for correct laryngeal functionality. Different analytical approaches for computing the VOT based on endoscopic imaging were compared to determine the most reliable method to quantify automatically the transient vocal fold oscillations during VO. Transnasal endoscopic imaging in combination with a high-speed camera (8000 fps) was applied to visualize the phonation onset process. Two different definitions of VO interval were investigated. Six analytical functions were tested that approximate the envelope of the filtered or unfiltered glottal area waveform (GAW) during phonation onset. A total of 126 recordings from nine healthy males and 210 recordings from 15 healthy females were evaluated. Three criteria were analyzed to determine the most appropriate computation approach: (1) reliability of the fit function for a correct approximation of VO; (2) consistency represented by the standard deviation of VOT; and (3) accuracy of the approximation of VO. The results suggest the computation of VOT by a fourth-order polynomial approximation in the interval between 32.2 and 67.8% of the saturation amplitude of the filtered GAW.

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Barboriak, Daniel, Jon Steingrimsson, Constantine Gatsonis, David Schiff, and Lawrence Kleinberg. "CLRM-07. INCREASING EFFICIENCY IN EARLY PHASE MULTICENTER IMAGING BIOMARKER TRIALS: EMERGING STRATEGIES FROM THE GABLE (GLIOBLASTOMA ACCELERATED BIOMARKER LEARNING ENVIRONMENT) TRIAL." Neuro-Oncology Advances 3, Supplement_4 (September 21, 2021): iv2. http://dx.doi.org/10.1093/noajnl/vdab112.006.

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Abstract Validated biomarkers that more accurately predict prognosis and/or measure disease burden in patients with high-grade gliomas would help triage which treatment strategies are most promising for evaluation in Phase III multicenter trials. Multicenter trials to evaluate imaging biomarkers in this group face particular challenges; these trials have historically been slow to accrue and have not recently succeeded in validating new imaging biomarkers useful in treatment development. Due to variability in image acquisition protocols, scanner hardware, image analysis, and interpretive schemes, promising results obtained in single centers are poor predictors of success in the multicenter setting. Multicenter preliminary data to support further evaluation of imaging biomarkers is rarely available. The need for more efficient trial designs that bring multicenter data earlier into the process of biomarker development has become increasingly clear. In this presentation, the planning process within ECOG-ACRIN’s Brain Tumor Working Group for a platform multicenter trial called GABLE (Glioblastoma Accelerated Biomarker Learning Environment trial) designed to evaluate biomarkers for distinguishing pseudoprogression from true progression in patients with newly diagnosed GBM is described. In our planning process, it was determined that efficiencies can be gained from evaluating multiple biomarker types in parallel rather than serially; in the context of the proposed trial, not only conventional imaging biomarkers but plasma biomarkers and radiomic biomarkers can be evaluated simultaneously. Patient tolerance limits the feasibility of evaluating multiple non-standard-of-care imaging biomarkers in parallel. For this group of biomarkers, a “fast-switching” serial evaluation strategy using multiple interim analyses was developed to triage out biomarkers unlikely to succeed in identifying patient groups with clinically significant differences in median survival. For biomarker triage, an endpoint of event-free survival (events of either death or NANO progression) was proposed. Simulations were used to evaluate alpha and beta error using this evaluation strategy.

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KIMMEY, M., D. BURNETT, F. ALKAWAS, D. CARRLOCKE, R. GANNAN, Z. SAEED, M. SCOBEY, T. STEIN, S. STEINBERG, and A. DIMARINOJR. "Device evaluation and the food and drug administration process." Gastrointestinal Endoscopy 43, no. 2 (1996): 641–44. http://dx.doi.org/10.1016/s0016-5107(96)81613-0.

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9

Jiang, Min, Zhen Yun Fang, and Bing Quan Hu. "Parameters Evaluation of Neutron Pinhole Imaging System Based on Geant4." Advanced Materials Research 396-398 (November 2011): 2349–52. http://dx.doi.org/10.4028/www.scientific.net/amr.396-398.2349.

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Neutron imaging by large pinhole is an important part for image acquisition and high-speed transmission in process of fast radiation. In order to get desirable results in experiments, it is necessary to judge performance of various designs qualitatively or quantitatively before experiments. In this paper, we simulate the millimeter-level pinhole imaging system based on Geant4 and analyze the effects of system parameters on imaging. The numerical results can provide theoretical foundation for system designing and simulation data for image analyzing.

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10

Karr, Jeffrey C., James A. Black, and Joshua M. Bernard. "Magnetic Resonance Imaging Evaluation of Monostotic Fibrous Dysplasia of the Tibia." Journal of the American Podiatric Medical Association 91, no. 6 (June 1, 2001): 306–10. http://dx.doi.org/10.7547/87507315-91-6-306.

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The authors present a case report documenting the evaluation of monostotic fibrous dysplasia by magnetic resonance imaging. This type of evaluation demonstrates specificity for this disease process when combined with other imaging studies, laboratory findings, and clinical presentation. This technique is extremely useful in the identification of a no-touch lesion, allowing avoidance of an unnecessary bone biopsy. (J Am Podiatr Med Assoc 91(6): 306-310, 2001)

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11

Zhang, Bozhi, Meijing Gao, Paul L. Rosin, Xianfang Sun, Qiuyue Chang, Qichong Yan, and Yucheng Shang. "Research on Performance Evaluation and Optimization Theory for Thermal Microscope Imaging Systems." Applied Sciences 11, no. 13 (June 25, 2021): 5897. http://dx.doi.org/10.3390/app11135897.

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Infrared imaging theory is an important theoretical basis for the design of infrared imaging systems, but there is no research on infrared imaging theory for designing thermal microscope imaging systems. Therefore, we studied the performance evaluation and optimization theory of thermal microscope imaging systems. In this paper, we analyzed the difference in spectral radiant flux between thermal microscope imaging and telephoto thermal imaging. The expression of signal-to-noise ratio of the output image of the thermal microscope imaging systems was derived, based on the analysis of the characteristics of thermal microscope imaging. We studied the performance evaluation model of thermal microscope imaging systems based on the minimum resolvable temperature difference and the minimum detectable temperature difference. Simulation and analysis of different detectors (ideal photon detector and ideal thermal detector) were also carried out. Finally, based on the conclusion of theoretical research, we carried out a system design and image acquisition experiment. The results show that the theoretical study of thermal microscope imaging systems in this paper can provide reference for the performance evaluation and optimization of thermal microscope imaging systems.

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12

Haas, Marilyn L., and Eric F. Kuehn. "Outcomes measurements: Design, implementation, and evaluation of process." International Journal of Radiation Oncology*Biology*Physics 42, no. 1 (January 1998): 351. http://dx.doi.org/10.1016/s0360-3016(98)80555-5.

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Beech, R., K. Burgess, and J. Stratford. "Process evaluation of treatment times in a large radiotherapy department." Radiography 22, no. 3 (August 2016): 206–16. http://dx.doi.org/10.1016/j.radi.2016.03.001.

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Perrich, Kiley, Alan Siegel, and Jocelyn D. Chertoff. "A Survey-Based Evaluation of the Radiology Residency Interview Process." Journal of the American College of Radiology 8, no. 2 (February 2011): 113–16. http://dx.doi.org/10.1016/j.jacr.2010.09.012.

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15

Mossa-Basha, Mahmud, Matthew Alexander, Santhosh Gaddikeri, Chun Yuan, and Dheeraj Gandhi. "Vessel wall imaging for intracranial vascular disease evaluation." Journal of NeuroInterventional Surgery 8, no. 11 (January 14, 2016): 1154–59. http://dx.doi.org/10.1136/neurintsurg-2015-012127.

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Accurate and timely diagnosis of intracranial vasculopathies is important owing to the significant risk of morbidity with delayed and/or incorrect diagnosis both from the disease process and inappropriate therapies. Conventional luminal imaging techniques for analysis of intracranial vasculopathies are limited to evaluation of changes in the vessel lumen. Vessel wall MRI techniques can allow direct characterization of pathologic changes of the vessel wall. These techniques may improve diagnostic accuracy and improve patient outcomes. Extracranial carotid vessel wall imaging has been extensively investigated in patients with atherosclerotic disease and has been shown to accurately assess plaque composition and identify vulnerable plaque characteristics that may predict stroke risk beyond luminal stenosis alone. This review provides a brief history of vessel wall MRI, an overview of the intracranial vessel wall MRI techniques, its applications, and imaging findings of various intracranial vasculopathies pertinent to the neurointerventionalist, neurologist, and neuroradiologist. We searched MEDLINE, PubMed, and Google for English publications containing any of the following terms: ‘intracranial vessel wall imaging’, ‘intracranial vessel wall’, and ‘intracranial vessel wall MRI’.

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16

Başekim, C. Çınar, Hakan Mutlu, Atila Güngör, Emir Şilit, Zekai Pekkafali, Murat Kutlay, Ahmet Çolak, Ersin Öztürk, and Eşref Kizilkaya. "Evaluation of styloid process by three-dimensional computed tomography." European Radiology 15, no. 1 (June 19, 2004): 134–39. http://dx.doi.org/10.1007/s00330-004-2354-9.

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17

Monti, Caterina B., Marina Codari, Carlo Nicola De Cecco, Francesco Secchi, Francesco Sardanelli, and Arthur E. Stillman. "Novel imaging biomarkers: epicardial adipose tissue evaluation." British Journal of Radiology 93, no. 1113 (September 1, 2020): 20190770. http://dx.doi.org/10.1259/bjr.20190770.

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Epicardial adipose tissue (EAT) is a metabolically activated beige adipose tissue, non-homogeneously surrounding the myocardium. Physiologically, EAT regulates toxic fatty acids, protects the coronary arteries against mechanical strain, regulates proinflammatory cytokines, stimulates the production of nitric oxide, reduces oxidative stress, and works as a thermogenic source against hypothermia. Conversely, EAT has pathologic paracrine interactions with the surrounded vessels, and might favour the onset of atrial fibrillation. In addition, initial atherosclerotic lesions can promote inflammation and trigger the EAT production of cytokines increasing vascular inflammation, which, in turn, may help the development of collateral vessels but also of self-stimulating, dysregulated inflammatory process, increasing coronary artery disease severity. Variations in EAT were also linked to metabolic syndrome. Echocardiography first estimated EAT measuring its thickness on the free wall of the right ventricle but does not allow accurate volumetric EAT estimates. Cardiac CT (CCT) and cardiac MR (CMR) allow for three-dimensional EAT estimates, the former showing higher spatial resolution and reproducibility but being limited by radiation exposure and long segmentation times, the latter being radiation-free but limited by lower spatial resolution and reproducibility, higher cost, and difficulties for obese patients. EAT radiodensity at CCT could to be related to underlying metabolic processes. The correlation between EAT and response to certain pharmacological therapies has also been investigated, showing promising results. In the future, semi-automatic or fully automatic techniques, machine/deep-learning methods, if validated, will facilitate research for various EAT measures and may find a place in CCT/CMR reporting.

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18

Brock, Daniela, J. Axel Zeitler, Adrian Funke, Klaus Knop, and Peter Kleinebudde. "Evaluation of critical process parameters for intra-tablet coating uniformity using terahertz pulsed imaging." European Journal of Pharmaceutics and Biopharmaceutics 85, no. 3 (November 2013): 1122–29. http://dx.doi.org/10.1016/j.ejpb.2013.07.004.

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19

Blacquiere, Dylan, Michael Sharma, and Prasad Jetty. "Delays in Carotid Endarterectomy: The Process is the Problem." Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques 40, no. 4 (July 2013): 585–89. http://dx.doi.org/10.1017/s0317167100014712.

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Abstract:Background:Current recommendations for carotid endarterectomy (CEA) for symptomatic carotid stenosis state benefit is greatest when performed within two weeks of symptoms. However, only a minority of cases are operated on within this guideline, and no systematic examinations of reasons for these delays exist.Methods:All CEA cases performed at our institution by vascular surgery for symptomatic carotid stenosis after neurologist referral in 2008-2009 were reviewed. Dates of symptom onset, initial presentation, referral to and evaluation by neurology and vascular surgery, vascular imaging, and CEA were collected, and the length of time between each analysed. Reasons for delays were noted where available.Results:Of 36 included patients, 34 had CEA more than two weeks after symptom onset. Median time to CEA from onset was 76 days (IQR, 38-105 days). Longest intervals were between surgeon assessment and CEA (14 days; IQR, 9-21 days), neurology referral and neurologist assessment (9 days; IQR, 2-26 days), vascular imaging and referral to vascular surgery (9 days; IQR, 2-35 days) and vascular surgery referral and assessment (8 days; IQR, 6-15 days). Few patients (44.1%) had reasons for delays identified; of these, process-related delays were related to delayed vascular imaging, delayed referral by primary care physicians, or multiple conflicting referrals.Conclusions:There are significant delays between symptom onset and CEA in patients referred for CEA, with delay highest between specialist referral and evaluation. Strategies to reduce these delays may be effective in increasing the proportion of procedures performed within two weeks of symptom onset.

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20

Li, Na, Xinchen Huang, Huijie Zhao, Xianfei Qiu, Kewang Deng, Guorui Jia, Zhenhong Li, David Fairbairn, and Xuemei Gong. "A Combined Quantitative Evaluation Model for the Capability of Hyperspectral Imagery for Mineral Mapping." Sensors 19, no. 2 (January 15, 2019): 328. http://dx.doi.org/10.3390/s19020328.

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To analyze the influence factors of hyperspectral remote sensing data processing, and quantitatively evaluate the application capability of hyperspectral data, a combined evaluation model based on the physical process of imaging and statistical analysis was proposed. The normalized average distance between different classes of ground cover is selected as the evaluation index. The proposed model considers the influence factors of the full radiation transmission process and processing algorithms. First- and second-order statistical characteristics (mean and covariance) were applied to calculate the changes for the imaging process based on the radiation energy transfer. The statistical analysis was combined with the remote sensing process and the application performance, which consists of the imaging system parameters and imaging conditions, by building the imaging system and processing models. The season (solar zenith angle), sensor parameters (ground sampling distance, modulation transfer function, spectral resolution, spectral response function, and signal to noise ratio), and number of features were considered in order to analyze the influence factors of the application capability level. Simulated and real data collected by Hymap in the Dongtianshan area (Xinjiang Province, China), were used to estimate the proposed model’s performance in the application of mineral mapping. The predicted application capability of the proposed model is consistent with the theoretical analysis.

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21

Roopashri, G., MR Vaishali, Maria Priscilla David, Muqeet Baig, and Uma Shankar. "Evaluation of Elongated Styloid Process on Digital Panoramic Radiographs." Journal of Contemporary Dental Practice 13, no. 5 (2012): 618–22. http://dx.doi.org/10.5005/jp-journals-10024-1197.

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ABSTRACT Background and objective The elongated styloid process may produce characteristic head and neck pain syndromes, commonly known as Eagle's syndrome. An awareness of this syndrome is important to all health practitioners involved in the diagnosis and treatment of neck and head pain. It has been estimated that 2 to 28% of the general adult population has radiographic appearance of elongated styloid process. The objective of the study was to assess the elongation of styloid process on digital panoramic radiographs and to evaluate the prevalence of elongation according to age, sex and types. Results Elongated styloid process was seen in 107 subjects out of 300 patients who were aged between 10 and 70 years old. Our study revealed that as age increased elongation of styloid process increased with female predominance. Type 1 elongation was most common than the other types of elongation. We also found that left styloids were elongated than the right with bilateral elongation. Conclusion Panoramic radiographs can show a correct picture of elongated styloid process which can confirm the diagnosis and can thus help avoid misinterpretation of the symptoms as tonsillar pain or pain of dental, pharyngeal or muscular origin and hence panoramic radiography is economical and the best imaging modality to view the elongation of styloid process. How to cite this article Roopashri G, Vaishali MR, David MP, Baig M, Shankar U. Evaluation of Elongated Styloid Process on Digital Panoramic Radiographs. J Contemp Dent Pract 2012;13(5):618-622.

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22

Pawlicki, T., R. L. Fletcher, and A. J. Mundt. "Evaluation of the Pre-treatment Patient Setup Approval Process." International Journal of Radiation Oncology*Biology*Physics 78, no. 3 (November 2010): S489—S490. http://dx.doi.org/10.1016/j.ijrobp.2010.07.1146.

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23

Kotzerke, J., M. Dietlein, F. Grünwald, and A. Bockisch. "PET and diagnostic technology evaluation in a global clinical process." Nuklearmedizin 49, no. 1 (January 19, 2010): 6–12. http://dx.doi.org/10.3413/nukmed-0319.

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24

Placko, Dominique, Thierry Bore, Alain Rivollet, and Pierre-Yves Joubert. "Original non-stationary eddy current imaging process for the evaluation of defects in metallic structures." European Physical Journal Applied Physics 72, no. 1 (September 4, 2015): 10701. http://dx.doi.org/10.1051/epjap/2015140458.

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25

Mather, Melissa L., Michael Brion, Lisa J. White, Kevin M. Shakesheff, Steven M. Howdle, Stephen P. Morgan, and John A. Crowe. "Time-lapsed imaging for in-process evaluation of supercritical fluid processing of tissue engineering scaffolds." Biotechnology Progress 25, no. 4 (July 2009): 1176–83. http://dx.doi.org/10.1002/btpr.191.

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26

Rowbotham, Emma, Shaheel Bhuva, Harun Gupta, and Philip Robinson. "Assessment of Referrals into the Soft Tissue Sarcoma Service: Evaluation of Imaging Early in the Pathway Process." Sarcoma 2012 (2012): 1–5. http://dx.doi.org/10.1155/2012/781723.

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Purpose. To prospectively evaluate regional referrals into a soft tissue sarcoma service from outside the tertiary centre with local hospital imaging.Materials and Methods. Consecutive referrals were prospectively assessed for: patient demographics, source, referral date, date received by Multidisciplinary Team (MDT), lesion size, local radiology, MDT radiology and final diagnoses. Radiology diagnosis was categorised benign, indeterminate or malignant by consensus. Delays were defined as >10 days.Results. 112 patients were included with high correlation between local and MDT radiology categrorisation and histology (P=0.54andP=0.49, resp.). There was only a trend for MDT radiology diagnosis to downgrade local imaging diagnosis (n=15,P>0.05). 48 cases (43%) had ultrasound and MRI at referral and 20 (18%) ultrasound only. 85% of cases were benign (lipoma most common), 15% malignant (sarcoma most common). Delay occurred in 34% of cases.Discussion. In comparison to previous series these results show a reduction in benign lesions, increased biopsy and malignancy rate for lesions referred to a tertiary centre when imaging is performed and reviewed by local radiologists.Advances in Knowledge. Imaging triage of soft tissue masses can decrease benign referral rates and increase the proportion of indeterminate and malignant lesions referred to specialist centres.

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Ma, Lijuan, Yanjiang Qiao, and Zhisheng Wu. "Process quality control of the manufacturing of Chinese Materia Medica by process analysis technology." NIR news 30, no. 7-8 (September 20, 2019): 14–18. http://dx.doi.org/10.1177/0960336019875924.

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Process quality control is essential for the manufacturing of Chinese Materia Medica. Non-destructive monitoring is still a challenge for the quality control of Chinese Materia Medica manufacturing. As the commonly used non-destructive process analysis technology, near infrared spectroscopy, near infrared chemical imaging, and laser-induced breakdown spectroscopy have been applied to the quality control of Chinese Materia Medica manufacturing. The characteristic near infrared bands of 29 natural chemical components have been assigned. Ten spectral pre-processing methods and five variable selection methods have been optimized, respectively. Given the interrelationship among modeling parameters, a system modeling concept was put forward to establish a global model. Accuracy Profile was further proposed as the validation method of models. In addition, the homogeneity of chlorpheniramine maleate tablets from six brands was successfully visualized by near infrared-chemical imaging. As and Hg variation in An-Gong-Niu-Huang Wan have been rapidly monitored by laser-induced breakdown spectroscopy. A systematic modeling method (model establishment, evaluation, and validation) and the non-destructive technology of homogeneity visualization and toxic element detection have been developed for quality control of Chinese Materia Medica manufacturing, which is shown in Figure 1 of the article. These achievements have greatly promoted the research and application of process analysis technology in Chinese Materia Medica manufacturing, laying a solid foundation for the development of intelligent Chinese pharmaceutical industry.

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28

Akin, Kayihan, Dilek Kosehan, Adem Topcu, and Asli Koktener. "Anatomic evaluation of the xiphoid process with 64-row multidetector computed tomography." Skeletal Radiology 40, no. 4 (August 19, 2010): 447–52. http://dx.doi.org/10.1007/s00256-010-1022-1.

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29

Alhowimel, Ahmed, Faris Alodaibi, Mazyad Alotaibi, Dalyah Alamam, Hana Alsobayel, and Julie Fritz. "Development of a Logic Model for a Programme to Reduce the Magnetic Resonance Imaging Rate for Non-Specific Lower Back Pain in a Tertiary Care Centre." Healthcare 9, no. 2 (February 23, 2021): 238. http://dx.doi.org/10.3390/healthcare9020238.

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Tertiary care centres continue to experience over-utilisation of diagnostic imaging services for lower back pain cases that may not be required. Moreover, these services may require additional time and consequently delay access to services that offer conservative management, i.e., physiotherapy, and hence, increase the direct and indirect costs with no added quality of care. A logic model was developed based on qualitative and quantitative studies that explains the plan and process evaluation strategies to reduce imaging for lower back pain in tertiary hospitals. Logic models are useful tools for defining programme components. The delivery of the components is ensured by well-defined process evaluations that identify any needed modifications. The proposed logic model provides a road map for spine clinics in tertiary care hospitals to decrease the number of patient referrals for magnetic resonance imaging and waiting times for consultations and services and promote early access to physiotherapy services.

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Upadhyay, Jaymin, Christian Geber, Richard Hargreaves, Frank Birklein, and David Borsook. "A critical evaluation of validity and utility of translational imaging in pain and analgesia: Utilizing functional imaging to enhance the process." Neuroscience & Biobehavioral Reviews 84 (January 2018): 407–23. http://dx.doi.org/10.1016/j.neubiorev.2017.08.004.

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Kim, Geonwoo, Hoonsoo Lee, Byoung-Kwan Cho, Insuck Baek, and Moon S. Kim. "Quantitative Evaluation of Food-Waste Components in Organic Fertilizer Using Visible–Near-Infrared Hyperspectral Imaging." Applied Sciences 11, no. 17 (September 3, 2021): 8201. http://dx.doi.org/10.3390/app11178201.

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Excessive addition of food waste fertilizer to organic fertilizer (OF) is forbidden in the Republic of Korea because of high sodium chloride and capsaicin concentrations in Korean food. Thus, rapid and nondestructive evaluation techniques are required. The objective of this study is to quantitatively evaluate food-waste components (FWCs) using hyperspectral imaging (HSI) in the visible–near-infrared (Vis/NIR) region. A HSI system for evaluating fertilizer components and prediction algorithms based on partial least squares (PLS) analysis and least squares support vector machines (LS-SVM) are developed. PLS and LS-SVM preprocessing methods are employed and compared to select the optimal of two chemometrics methods. Finally, distribution maps visualized using the LS-SVM model are created to interpret the dynamic changes in the OF FWCs with increasing FWC concentration. The developed model quantitively evaluates the OF FWCs with a coefficient of determination of 0.83 between the predicted and actual values. The developed Vis/NIR HIS system and optimized model exhibit high potential for OF FWC discrimination and quantitative evaluation.

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Raczkowski, M., M. Janiszewska, T. Siudziński, and A. Maciejczyk. "PO-1787: Radiotherapy process management using InSightive: optimization, evaluation and verification." Radiotherapy and Oncology 152 (November 2020): S996—S997. http://dx.doi.org/10.1016/s0167-8140(21)01805-3.

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33

Ghabezi, P., M. Farahani, A. Shahmirzaloo, H. Ghorbani, and NM Harrison. "Defect evaluation of the honeycomb structures formed during the drilling process." International Journal of Damage Mechanics 29, no. 3 (July 2, 2019): 454–66. http://dx.doi.org/10.1177/1056789519860573.

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In this paper, a comprehensive experimental investigation was carried out to precisely characterize the delamination and uncut fiber in the drilling process. A digital imaging procedure was developed in order to calculate the damage resulted from the drilling process. A novel method is proposed in this article based on image intensity to verify the obtained results. A full factorial experimental design was performed to evaluate the importance of the drilling parameters. Among other process parameters, feed rate, cutting speed, and tool diameter are the principal factors responsible for the delamination damage size during the drilling. The drilling process was assessed based on two proposed incurred damage factors, specifically the delamination factor and uncut fiber factor. Experimental results demonstrated that the feed rate was the paramount parameter for both delamination and uncut fiber factors. It was observed that both factors increased with an increase in the feed rate. Additionally, by increasing the tool diameter, the delamination and uncut fiber factors significantly increase. The effects of the cutting speed on damage factors were not linear. The minimum delamination factor and uncut fiber factor were obtained at the cutting speed of 1500 and 2500 r/min, respectively.

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Goyal, Pradeep, Steven Lee, Nishant Gupta, Yogesh Kumar, Manisha Mangla, Kusum Hooda, Shuo Li, and Rajiv Mangla. "Orbital apex disorders: Imaging findings and management." Neuroradiology Journal 31, no. 2 (February 8, 2018): 104–25. http://dx.doi.org/10.1177/1971400917740361.

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Orbital apex disorders include orbital apex syndrome, superior orbital fissure syndrome and cavernous sinus syndrome. These disorders result from various etiologies, including trauma, neoplastic, developmental, infectious, inflammatory as well as vascular causes. In the past, these have been described separately based on anatomical locations of disease process; however, these three disorders share similar causes, diagnostic evaluation and management strategies. The etiology is diverse and management is directed to the causative process. This imaging review summarizes the pertinent anatomy of the orbital apex and illustrates representative pathological processes that may affect this region. The purpose of this review is to provide an update on the current status of diagnostic imaging and management of patients with orbital apex disorders.

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Sakata, Lisandro, and Kenji Sakata. "Anterior Segment Imaging – Anterior Chamber Angle Assessment." European Ophthalmic Review 04, no. 01 (2010): 60. http://dx.doi.org/10.17925/eor.2010.04.01.60.

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Angle closure is a visually destructive form of glaucoma that accounts for approximately half of the worldwide blindness caused by this disease. Angle-closure glaucoma tends to occur in anatomically pre-disposed eyes, and the evaluation of the anterior segment morphology may help identify eyes at risk of angle closure. Ultrasound biomicroscopy is one of the devices developed for anterior-segment imaging, and it helped to provide better understanding of the mechanisms of angle closure. Recently, optical coherence tomography (OCT) technology became available for evaluating the anterior segment of the eye, enabling rapid non-contact imaging of the anterior chamber. Interestingly, anterior segment OCT (AS-OCT) technology appears to detect more eyes with angle closure compared with gonioscopy, and further studies should address how anterior segment imaging findings should be incorporated into the clinical decision-making process. In summary, this article reviews most of the previously published papers on the use of anterior segment imaging in angle-closure glaucoma and tackles some relevant points for the interpretation of imaging exams in daily clinical practice.

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Sasson, Talia, Nancy Carson, and Susan Voci. "The Role of Ultrasound in the Preoperative Evaluation, Maturation Process, and Postoperative Evaluation of Hemodialysis Access." Ultrasound Clinics 8, no. 2 (April 2013): 137–46. http://dx.doi.org/10.1016/j.cult.2012.12.003.

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Patel, Kinesh P., Siwan Thomas-Gibson, Omar Faiz, and Matthew D. Rutter. "Tu1319 An Evaluation of Screening Colonoscopists' Performance After a Structured Accreditation Process." Gastrointestinal Endoscopy 77, no. 5 (May 2013): AB497—AB498. http://dx.doi.org/10.1016/j.gie.2013.03.800.

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Hiramatsu, Kunihiko, Akira Tsujii, Norimasa Nakamura, and Tomoki Mitsuoka. "Ultrasonographic Evaluation of the Early Healing Process After Achilles Tendon Repair." Orthopaedic Journal of Sports Medicine 6, no. 8 (August 1, 2018): 232596711878988. http://dx.doi.org/10.1177/2325967118789883.

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Background: Little is known about early healing of repaired Achilles tendons on imaging, particularly up to 6 months postoperatively, when patients generally return to participation in sports. Purpose: To examine changes in repaired Achilles tendon healing with ultrasonography for up to 12 months after surgery. Study Design: Case series; Level of evidence, 4. Methods: Ultrasonographic images of 26 ruptured Achilles tendons were analyzed at 1, 2, 3, 4, 6, and 12 months after primary repair. The cross-sectional areas (CSAs) and intratendinous morphology of the repaired tendons were evaluated using the authors’ own grading system (tendon repair scores), which assessed the anechoic tendon defect area, intratendinous hyperechoic area, continuity of intratendinous fibrillar appearance, and paratendinous edema. Results: The mean ratios (%) of the CSA for the affected versus unaffected side of repaired Achilles tendons gradually increased postoperatively, reached a maximum (632%) at 6 months, and then decreased at 12 months. The mean tendon repair scores increased over time and reached a plateau at 6 months. Conclusion: Ultrasonography is useful to observe the intratendinous morphology of repaired Achilles tendons and to provide useful information for patients who wish to return to sports. Clinical parameters such as strength, functional performance, and quality of healed repaired tendons should also be assessed before allowing patients to return to sports.

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Krajcovicova, Sona, Andrea Daniskova, Katerina Bendova, Zbynek Novy, Miroslav Soural, and Milos Petrik. "[68Ga]Ga-DFO-c(RGDyK): Synthesis and Evaluation of Its Potential for Tumor Imaging in Mice." International Journal of Molecular Sciences 22, no. 14 (July 9, 2021): 7391. http://dx.doi.org/10.3390/ijms22147391.

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Angiogenesis has a pivotal role in tumor growth and the metastatic process. Molecular imaging was shown to be useful for imaging of tumor-induced angiogenesis. A great variety of radiolabeled peptides have been developed to target αvβ3 integrin, a target structure involved in the tumor-induced angiogenic process. The presented study aimed to synthesize deferoxamine (DFO)-based c(RGD) peptide conjugate for radiolabeling with gallium-68 and perform its basic preclinical characterization including testing of its tumor-imaging potential. DFO-c(RGDyK) was labeled with gallium-68 with high radiochemical purity. In vitro characterization including stability, partition coefficient, protein binding determination, tumor cell uptake assays, and ex vivo biodistribution as well as PET/CT imaging was performed. [68Ga]Ga-DFO-c(RGDyK) showed hydrophilic properties, high stability in PBS and human serum, and specific uptake in U-87 MG and M21 tumor cell lines in vitro and in vivo. We have shown here that [68Ga]Ga-DFO-c(RGDyK) can be used for αvβ3 integrin targeting, allowing imaging of tumor-induced angiogenesis by positron emission tomography.

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Davies, Lucy, Louise McHugh, and Cynthia Eccles. "Streamlining the Image-Guided Radiotherapy Process for Proton Beam Therapy: A Service Evaluation." Radiography 26 (January 2020): S10—S11. http://dx.doi.org/10.1016/j.radi.2019.11.028.

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MONDAL, A., A. BHATNAGAR, R. SHARMA, V. BEHARI, K. SAWROOP, and C. M. KHANNA. "Evaluation of the healing process in fractures using early and delayed bone scanning." Australasian Radiology 38, no. 4 (November 1994): 284–87. http://dx.doi.org/10.1111/j.1440-1673.1994.tb00200.x.

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Benitez, Guilherme Brittes, Flavio S. Fogliatto, Carlo Sasso Faccin, Jose Miguel Dora, and Felipe Soares Torres. "Productivity evaluation of radiologists interpreting computed tomography scans using statistical process control charts." Clinical Imaging 77 (September 2021): 135–41. http://dx.doi.org/10.1016/j.clinimag.2021.02.018.

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Barbiera, F., C. Gallo, S. Cusmà, M. P. Ferro, G. La Tona, L. Manfrè, and M. De Maria. "Rheumatoid Arthritis: Evaluation of Temporomandibular Joint Abnormalities with MR Imaging." Rivista di Neuroradiologia 10, no. 4 (August 1997): 465–69. http://dx.doi.org/10.1177/197140099701000412.

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It is well known that the temporomandibular joint (TMJ), as well as other joints, may be affected in patients with rheumatoid arthritis (RA). Conventional radiographic methods can be used in the assessment of bone damage but its usefulness is limited as the soft tissue involvement cannot be demonstrated. Many reports have shown the potential of magnetic resonance imaging in the evaluation of different TMJ components, all of which are often compromised in rheumatic disease; moreover MR imaging is superior for depicting advanced stages of rheumatic disease with various degrees of disc destruction. The purpose of this study was to evaluate the role of MR imaging in the assessment of RA. MR imaging of the TMJ was performed on 14 patients (11 women and 3 men, aged 36–79 years, mean 57.5) with diagnosed RA in stages 2 and 3 according to Steinbroker criteria. Both TMJs were evaluated in ten patients. A total of 24 TMJs were studied in this group of patients. Informed consent was obtained in each case. The goal of MR is not only to facilitate a diagnosis of rheumatoid arthritis, which may be done using laboratory and clinical parameters, but to assess the extent of the early soft-tissue and bone manifestations of the inflammatory process and to identify the stage of the disease.

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Rau, Thomas S., M. Geraldine Zuniga, Rolf Salcher, and Thomas Lenarz. "A simple tool to automate the insertion process in cochlear implant surgery." International Journal of Computer Assisted Radiology and Surgery 15, no. 11 (August 28, 2020): 1931–39. http://dx.doi.org/10.1007/s11548-020-02243-7.

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Abstract Purpose Automated insertion of electrode arrays (EA) in cochlear implant surgery is presumed to be less traumatic than manual insertions, but no tool is widely available in the operating room. We sought (1) to design and create a simple tool able to automate the EA insertion process; and (2) to perform preliminary evaluations of the designed prototype. Methods A first prototype of a tool with maximum simplicity was designed and fabricated to take advantage of hydraulic actuation. The prototype facilitates automated forward motion using a syringe connected to an infusion pump. Initial prototype evaluation included: (1) testing of forward motion at different velocities (2) EA insertion trials into an artificial cochlear model with force recordings, and (3) evaluation of device handling, fixation and positioning using cadaver head specimens and a surgical retractor. Alignment of the tool was explored with CT imaging. Results In this initial phase, the prototype demonstrated easy assembly and ability to respond to hydraulic actuation driven by an infusion pump at different velocities. EA insertions at an ultra-slow velocity of 0.03 mm/s revealed smooth force profiles with mean maximum force of 0.060 N ± 0.007 N. Device positioning with an appropriate insertion axis into the cochlea was deemed feasible and easy to achieve. Conclusions Initial testing of our hydraulic insertion tool did not reveal any serious complications that contradict the initially defined design specifications. Further meticulous testing is needed to determine the safety of the device, its reliability and clinical applicability.

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Kraan, Rik, Frances Walstra, Teun Teunis, Frank Smithuis, Cornelis Van Dijke, and Mario Maas. "Emergency and Trauma of Hand and Wrist." Seminars in Musculoskeletal Radiology 21, no. 03 (June 1, 2017): 240–56. http://dx.doi.org/10.1055/s-0037-1602414.

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Traumatic injuries of the hand and wrist are common in daily practice. Several challenges arise in the process of diagnosis and guiding the clinician. Knowledge of the complex finger, hand, and wrist anatomy is essential to understand the broad array of traumatic injuries extending from (stress)fractures to ligament, tendon, and neurovascular injuries. This article provides an overview of the different imaging techniques used in the evaluation of the hand and wrist. Emphasis is placed on the most common traumatic injuries of the hand, wrist, and fingers, and the imaging modality of choice in evaluating these injuries.

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Rueda, Alexis N., César Ruiz-Trejo, Eduardo López-Pineda, Mario E. Romero-Piña, and Luis A. Medina. "Dosimetric Evaluation in Micro-CT Studies Used in Preclinical Molecular Imaging." Applied Sciences 11, no. 17 (August 27, 2021): 7930. http://dx.doi.org/10.3390/app11177930.

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In microCT imaging, there is a close relationship between the dose of radiation absorbed by animals and the image quality, or spatial resolution. Although the radiation levels used in these systems are generally non-lethal, they can induce cellular or molecular alterations that affect the experimental results. Here, we describe a dosimetric characterization of the different image acquisition modalities used by the microCT unit of the Albira microPET/SPECT/CT scanner, which is a widely used multimodal imaging system in preclinical research. The imparted dose at the animal surface (IDS) was estimated based on Boone’s polynomial interpolation method and experimental measurements using an ionization chamber and thermoluminescent dosimeters. The results indicated that the imparted dose at surface level delivered to the mice was in the 30 to 300 mGy range. For any combination of current (0.2 or 0.4 mA) and voltage (35 or 45 kV), in the Standard, Good, and Best image acquisition modalities, the dose imparted at surface level in rodents was below its threshold of deterministic effects (250 mGy); however, the High Res modality was above that threshold.

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Caruso, Martina, Valeria Romeo, Arnaldo Stanzione, Carlo Buonerba, Giuseppe Di Lorenzo, and Simone Maurea. "Current Imaging Evaluation of Tumor Response to Advanced Medical Treatment in Metastatic Renal-Cell Carcinoma: Clinical Implications." Applied Sciences 11, no. 15 (July 28, 2021): 6930. http://dx.doi.org/10.3390/app11156930.

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The present review is focused on the role of diagnostic tomographic imaging such as computed tomography and magnetic resonance imaging to assess and predict tumor response to advanced medical treatments in metastatic renal cell carcinoma (RCC) patients. In this regard, antiangiogenic agents and immune checkpoint inhibitors (ICIs) have developed as advanced treatment options replacing the conventional therapy based on interferon-alpha and interleuchin-2 which had unfavorable toxicity profile and low response rates. In clinical practice, the imaging evaluation of treatment response in cancer patients is based on dimensional changes of tumor lesions in sequential scans; in particular, Response Evaluation Criteria in Solid Tumors (RECIST) have been defined for this purpose and also applied in patients with metastatic RCC. However, these new drugs with predominant cytostatic effect make RECIST insufficient to realize an adequate response imaging evaluation. Therefore, new imaging criteria (mCHOI and iRECIST) have been proposed to assess tumor response to advanced medical treatments of metastatic RCC, they correlate better than RECIST with the progression-free survival and overall survival. Finally, a potential role of radiomics and machine learning models has been suggested to predict tumor response.

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Alani, S., T. Yonina, G. Eliahu, and Z. Jamal. "PO-175: Evaluation output variability in TrueBeam Linac using Process capability indices." Radiotherapy and Oncology 141 (December 2019): S78. http://dx.doi.org/10.1016/s0167-8140(20)30517-x.

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Lubiatowski, Przemyslaw, Joanna Wałecka, and Jakub Stefaniak. "IMAGING IN ANTERIOR SHOULDER DISLOCATION." Issues of Rehabilitation, Orthopaedics, Neurophysiology and Sport Promotion – IRONS 37 (September 2021): 25–32. http://dx.doi.org/10.19271/irons-000149-2021-37.

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Shoulder dislocation is a very common musculoskeletal injury. Imaging in such cases serves an important role in the diagnostic and therapeutic process. Despite a pretty simple clinical diagnosis, the process itself is long for the patient and associated with multiple steps and decision making to regain function with low risk of prolonged disability (Zygmunt et al., 2013; Lubiatowski et al., 2016). There are also many controversies as well as significant diversity among surgeons regarding the timing and choice of particular diagnostic modalities used in diagnostics of different scenarios of shoulder dislocation. The aim of imaging in shoulder dislocation is to confirm dislocation and its direction and finally successful reduction. That usually is served by conventional radiography. Additionally, imaging may be required to identify soft tissue or bone injuries or, when necessary vascular and nerve injuries using different modalities (CT, MR, US). The selective radiographic evaluation may reduce the number of X-rays, costs, and most of all time before reduction and spent by a patient in an emergency unite. That should be used carefully to avoid misdiagnosis. Keywords: shoulder dislocation, imaging, radiography, instability, magnetic resonance

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Le, Ott, and Juan J. Ibarra Rovira. "Cystic Pancreatic Lesions: A Review of Diagnosis and Management." Journal of Gastrointestinal and Abdominal Radiology 3, no. 01 (January 2020): 035–39. http://dx.doi.org/10.1055/s-0040-1708107.

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AbstractPancreatic cysts are commonly seen with increasing use of cross-sectional imaging. They range from a benign inflammatory process that can produce pseudocysts to malignant lesions such as mucinous cystadenocarcinoma. Other common pancreatic cysts include intraductal pancreatic mucinous neoplasms and serous cystadenomas. Optimized imaging protocol dedicated to imaging the pancreas is required, such as multiphasic computed tomography, magnetic resonance imaging/magnetic resonance cholangiopancreatography, or endoscopic ultrasound, to fully detect and characterize the lesions. A confident diagnosis can be made on imaging when features such as calcifications, pancreatic duct diameter, main duct communication, and mural nodules are assessed. Additionally, pathologic evaluation from fluid/tissue sampling aid in diagnosis. Optimal management of pancreatic cysts is achieved based on the imaging features, conveying key findings in the radiology report, pathologic evaluation, and clinical factors.

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