Relevant bibliographies by topics / Computed radiographic

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Computed radiographic'

Author: Grafiati
Published: 4 June 2021
Last updated: 13 February 2022

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Journal articles on the topic "Computed radiographic"

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Mattoon, J. S. "Digital radiography." Veterinary and Comparative Orthopaedics and Traumatology 19, no. 03 (2006): 123–32. http://dx.doi.org/10.1055/s-0038-1632988.

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SummaryDigital radiography has been used in human medical imaging since the 1980's with recent and rapid acceptance into the veterinary profession. Using advanced image capture and computer technology, radiographic images are viewed on a computer monitor. This is advantageous because radiographic images can be adjusted using dedicated computer software to maximize diagnostic image quality. Digital images can be accessed at computer workstations throughout the hospital, instantly retrieved from computer archives, and transmitted via the internet for consultation or case referral. Digital radiographic data can also be incorporated into a hospital information system, making record keeping an entirely paperless process. Digital image acquisition is faster when compared to conventional screen-film radiography, improving workflow and patient throughput. Digital radiography greatly reduces the need for “retake” radiographs because of wide latitude in exposure factors. Also eliminated are costs associated with radiographic film and x-ray film development. Computed radiography, charged coupled devices, and flat panel detectors are types of digital radiography systems currently available.
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Lee, H., J. Kim, Y. Cho, M. Kim, N. Kim, and K. Lee. "Three-dimensional computed tomographic volume rendering imaging as a teaching tool in veterinary radiology instruction." Veterinární Medicína 55, No. 12 (2010): 603–9. http://dx.doi.org/10.17221/2950-vetmed.

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The educational value of three-dimensional computed tomography (3D CT) volume rendering imaging was compared to conventional plain radiographic instruction in a veterinary radiology class. Veterinary radiology is an important subject in veterinary medicine and has been well-recognized as a primary diagnostic method. Many junior and senior students have difficulty interpreting two dimensional radiographs that depict three-dimensional organs. A total of 158 junior veterinary students with knowledge of anatomy, pathology, physiology, and other basic subjects were divided into two groups; Group 1 (n = 45) received conventional radiographic instruction using normal and representative abnormal canine thoracic and abdominal radiographs followed by repetition of the same one week later, while Group 2 (n = 113) received plain radiograph instruction as in Group 1 followed by volume-rendered 3D CT images from the same canine patient one week later. The evaluations were performed at the end of each instruction. In Group 1, the majority did not understand the radiographic signs and no significant improvement was observed. In Group 2, 13% and 20% of the students learned only from radiographs, and understood the thoracic and abdominal radiographic alterations, respectively. After studying the 3D CT images, more than 94% of the students deduced the reasons for the radiographic alterations on the radiographs (P < 0.001). These results strongly suggest that 3D CT imaging is an effective tool for teaching radiographic anatomy to veterinary medical students.
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Nakano, Y., T. Hiraoka, K. Togashi, et al. "Direct radiographic magnification with computed radiography." American Journal of Roentgenology 148, no. 3 (1987): 569–73. http://dx.doi.org/10.2214/ajr.148.3.569.

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Decusară, Mioara, Cerasella-Dorina Şincar, Alexandru Nicolau, and Teodora Denisa Gheorghi. "The importance of 3D imaging for the orthodontic diagnosis and treatment." Romanian Journal of Stomatology 62, no. 4 (2016): 183–89. http://dx.doi.org/10.37897/rjs.2016.4.3.

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Within a century, dental radiology “suffered” transformation, beginning with periapical radiographs, cephalograms and panoramic radiography and continuing with digital imaging and cone beam computed tomography. In contemporary dental practice is importantant to choose the type of radiographic investigation in order to achieve a complete and accurate diagnosis, so necessary for determining the treatment plan for patients with dental-maxillary abnormalities. We conducted a comparative study between conventional radiographic investigation (periapical radiographs, panoramic radiography) and cone beam computed tomography in patients with malocclusions. The costs and radiation doses are low to the classic X-rays, but the diagnosis is given by the two-dimensional image of a three-dimensional dental-maxillary pathologies. Cone Beam CT scans were relatively high in cost and in radiation doses, but provided three-dimensional images and anatomic and radiological data of superior quality to the classics.
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Andrade, C. R., B. W. Minto, R. M. Dreibi, et al. "Comparison of radiographic and tomographic evaluations for measurement of the Canal Flare Index in dogs." Arquivo Brasileiro de Medicina Veterinária e Zootecnia 73, no. 3 (2021): 571–82. http://dx.doi.org/10.1590/1678-4162-11987.

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ABSTRACT The outcome of total hip arthroplasty (THA) in dogs is directly related to surgical planning. Templating of radiographs prior to THA should help the surgeon anticipate prosthesis size and femoral shape allowing canal fill of the proximal metaphysis by the implant ensuring primary stable fixation. The canal flare index (CFI) obtained from radiograph has been used as a measure of risk of complications for the technique in human beings and dogs. However, standard radiographs only provide limited data for the selection of cementless prostheses and the assessment of their fit within the femoral canal, due to factors like radiographic magnification and femoral rotation. Therefore, three-dimensional evaluation based on computed tomography (CT) may be a better tool for CFI measurement. The aim of this study was to compare anatomical measurement with CFI values obtained from craniocaudal radiography and CT. Craniocaudal radiographs using a horizontal radiographic beam (CR), CT, and anatomical macroscopic measurements (A) were obtained from 45 femurs from 23 canine cadavers. The differences between the values of CFI obtained from radiograph (CFI-R), computed tomography on transverse (CFI- TT) and longitudinal axis (CFI-TL) compared to the CFI obtained from macroscopic measurements - gold standard - (CFI-A), and 95% limits of agreement (LOA) between the values, were evaluated by the Bland-Altman method. Dimensions obtained from CT techniques had a greatest mean difference from anatomical and CFI values were also different (P=0.032). Under the experimental conditions, the craniocaudal radiograph, provided the most accurate measurement of the CFI (mean difference: 0.087 ± 0.42).
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Abbeyquaye, D., S. Inkoom, N. B. Hammond, J. J. Fletcher, and B. O. Botwe. "PATIENT DOSE ASSESSMENT AND OPTIMISATION OF PELVIC RADIOGRAPHY WITH COMPUTED RADIOGRAPHY SYSTEMS." Radiation Protection Dosimetry 195, no. 1 (2021): 41–49. http://dx.doi.org/10.1093/rpd/ncab111.

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Abstract Digital radiography systems can reduce radiation dose, this capability was harnessed to explore dose and image quality (IQ) optimisation strategies. Entrance surface dose (ESD), effective dose (ED) and organ doses were determined by the indirect method for patients undergoing pelvic anteroposterior X-ray examinations with computed radiography systems. The IQ of patients’ radiographs was assessed in terms of signal-to-noise ratio (SNR). An anthropomorphic phantom was exposed with varying tube potential (kVp), tube current-time product (mAs), and focus-to-detector distance (FDD) to determine phantom-entrance dose for the optimisation studies. SNR of each phantom radiograph was determined. Patients’ mean ESD of 2.38 ± 0.60 mGy, ED of 0.25 ± 0.07 mSv and SNR of 8.5 ± 2.2 were obtained. After optimisation, entrance dose was reduced by 29.2% with 5 cm increment in FDD, and 5 kVp reduction in tube potential. kVp and/or mAs reduction with an increment in FDD reduced entrance dose without adversely compromising radiographic-IQ.
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Merritt, Christopher R. B., Roger H. Tutton, Kenneth A. Bell, et al. "Clinical application of digital radiography: Computed radiographic imaging." RadioGraphics 5, no. 3 (1985): 397–414. http://dx.doi.org/10.1148/radiographics.5.3.397.

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Biasibetti, Martina, Annette Schumacher, Michelle Fabiani, and Gian Rovesti. "The use of the computed tomography in the diagnostic protocol of the elbow in the dog: 24 joints." Veterinary and Comparative Orthopaedics and Traumatology 15, no. 01 (2002): 35–43. http://dx.doi.org/10.1055/s-0038-1632711.

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SummaryThe evaluation of the elbow joint is difficult based on clinical and radiographic examinations. The anatomical structures of its articular components are superimposed with standard radiography, often leading to presumptive diagnoses. When the radiographic findings become more suggestive, usually the early phase of the disease has passed and chronic disease has developed. Because computer-generated slices are not hindered by this superimposition, the use of computed tomography may be beneficial in investigating the joint. The purpose of this study was to evaluate if computed tomography could change or better define the diagnosis previously made on the basis of a radiographic examination in 12 client- owned dogs presented for elbow lameness. As a positive control, 12 out of the 24 imaged joints were surgically or arthroscopically explored. The diagnosis based on computed tomography was different or more precisely defined, compared to the radiographic examination, in 46% of the examined joints. Earlier and more complete definition of elbow joint disease may change the therapeutic options and, potentially, the clinical outcome.
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Wahyuddin, Wahyuddin, AR Rakhmansyah Iskandar, and Nurul Adilah Z. "Analisa Artefak Pada Hasil Radiograf Yang Timbul Akibat Pengolahan Computed Radiography." Lontara 2, no. 1 (2021): 31–34. http://dx.doi.org/10.53861/lontarariset.v2i1.186.

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Artefacts are structures or appearances that are not normally present on radiographs, errors in radiographic processing may be due to technical errors or film processing errors. This research was conducted using Descriptive methods, with the type of literature study that aims to examine the causes of artifacts that can occur as a result of improper handling of film processing errors.The results of the analysis concluded that the frequent occurrence of artifacts in the processing of Computed Radiography is caused by two factors, that is the use of imaging plates and grids lisolm. His advice should be in the processing using Computed Radigraphy the officer must be more careful and pay attention to the components in Computed Radiography.
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Lacava, Giuseppe, Eric Zini, Federica Marchesotti, et al. "Computed tomography, radiology and echocardiography in cats naturally infected with Aelurostrongylus abstrusus." Journal of Feline Medicine and Surgery 19, no. 4 (2016): 446–53. http://dx.doi.org/10.1177/1098612x16636419.

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Objectives The aims of the study were to describe the radiographic and computed tomographic features in cats naturally infected with Aelurostrongylus abstrusus, and to identify signs of pulmonary hypertension with echocardiography. Methods Fourteen cats positive on Baermann test for A abstrusus were included in the study. All cats underwent thoracic radiography, CT and echocardiography. Results The most common clinical signs were coughing (10/14) and dyspnoea (5/14). Radiographic findings included a generalised unstructured interstitial pulmonary pattern (8/14), mixed bronchointerstitioalveolar pattern (3/14) and bronchointerstitial pattern with bronchial wall thickening (3/14). Sternal lymphadenopathy was detected on thoracic radiographs in six cats. On CT, features were mixed bronchointerstitioalveolar pattern with ground-glass appearance in six cats, interstitioalveolar with multiple pulmonary nodules in five, interstitial ground-glass infiltrates in three, regional lymph node enlargement in 11 (10 sternal, three cranial mediastinal and three tracheobronchial lymph nodes) and subpleural thickening in four. None of the thoracic radiographs revealed subpleural thickening. In all cases, pulmonary vessels were normal in terms of size, shape and attenuation on both radiography and CT. Pulmonary hypertension and cardiac abnormalities were not observed in any cat during echocardiography. Conclusions and relevance CT provided a more thorough characterisation of pulmonary and mediastinal lesions compared with thoracic radiographs in cats naturally infected with A abstrusus. Although feline aelurostrongylosis has been previously associated with histopathological lesions in lung arteries, in this cohort clinical evidence of pulmonary hypertension was not documented.
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Dissertations / Theses on the topic "Computed radiographic"

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Irvine, Michael Alan, and thebovus@yahoo com. "Image Quality and Radiation Dose Comparison of a Computed Radiography System and an Amorphous Silicon Flat Panel System in Paediatric Radiography: A Phantom Study." RMIT University. Applied Sciences, 2009. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20091019.122013.

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This purpose of this work was to investigate the patient radiation doses and image quality of a Philips/Agfa computed radiographic (CR) system and a Philips indirect-capture digital radiographic (DR) system in a paediatric setting. A CDRAD digital radiographic contrast-detail phantom was used to assess radiographic image quality. Perspex slabs of three different thicknesses (6, 11 and 16 cm) were used to simulate paediatric patients of three arbitrary ages. These phantoms, in conjunction with the CDRAD digital radiographic contrast-detail phantom, were imaged under three different conditions. The CDRAD Analyser software package was used to assess the quality of each image. The first experiment conducted was a comparison of the two systems under standard conditions, with beam filtration of aluminium and copper, as recommended in European Guidelines on Quality Criteria for Diagnostic Radiographic Images in Paediatrics (European Commission 1996b). Image quality was compared for each phantom size at three doses with the same entrance exposure used for both systems. A visual comparison of the resulting contrast detail curves showed the DR system generally outperformed the CR system, especially at the lowest two doses. A chi-square analysis of the targets detected generally confirmed this visual impression. The second experiment performed was to compare the two systems under the conditions used in routine clinical practice at PMH. As a result of additional beam filtration not generally being employed, the image quality of the CR system was similar to the DR system for the two smaller phantom sizes but with a major dose cost - effective doses higher by between 38% and 100%. A chi-square analysis of the targets detected showed the CR system to be significantly better than the DR system at two of three doses for the thinnest phantom and no significant difference at any doses for the intermediate phantom size. For the largest phantom size, additional filtration - although different - was used for the CR and DR systems and so the X-ray beam spectra were more similar. Consequently, the results for this phantom size reflected those from the experiment conducted under standard conditions, ie the effective doses for both systems were similar and the image quality of the DR system superior. The chi-square analysis s howed the DR system to be significantly better than the CR at all three dose levels. A third experiment was undertaken to compare doses between the two systems at 'equal' image quality. The CDRAD Analyser software specific image quality parameter, IQFinv, was held constant for both systems. The entrance exposures required to achieve this image quality were measured and then converted to effective doses using the dose calculation software package PCXMC 1.5. The DR system offered effective dose savings of between 28 and 42% for the three phantom sizes. Overall, this work suggests that a Philips flat-panel system is superior to an Agfa CR system in paediatric radiography. This result generally reflects the findings of other authors who have conducted similar studies in adult patient settings.
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Polinsky, Adam S. "Evaluation and Comparison of Periapical Healing Using Periapical Films and Cone Beam Computed Tomography: Post-Treatment Follow Up." VCU Scholars Compass, 2019. https://scholarscompass.vcu.edu/etd/5767.

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Purpose: The purpose of this study was to assess the radiographic changes in periapical status and analysis of healing determined using periapical radiographs (PA) versus cone beam computed tomography (CBCT) pre-operatively and at 3-64 months following endodontic treatment. Methods: Pre/post treatment radiograph and CBCT scans of patients who had NSRCT, NSReTx, or SRCT from July 2011-December 2018 at VCU Graduate Endodontic clinic were included in this study. Volumetric and linear measurements of periapical lesions on initial and recall PA and CBCT images were performed using three calibrated examiners. Changes and differences in the estimated area from PA to CBCT were compared using the Wilcoxon signed-rank test. McNemar’s chi-squared test was used to determine agreement in the proportion of lesions that were absent (0x0) between the PA and corresponding view of CBCT. This data was used to calculate the sensitivity, specificity, positive predictive value (PPV), and negative predicative value (NPV). Results: A total of 51 patients with a median healing time of 13 months were included in the analysis. Significant healing was observed on both PA and CBCT images (p-value Conclusion: Assessment using CBCT revealed a lower healing rate for all treatment categories compared with periapical radiographs. CBCT was more likely to detect the presence of a PARL, whereas a periapical radiograph would be less sensitive to detection of a PARL. Significant healing cannot be detected at an earlier point in time with PA radiographs or CBCT.
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Pitcher, Christopher D. "Quantitative metrics to evaluate image quality for computed radiographic images." [Gainesville, Fla.] : University of Florida, 2004. http://purl.fcla.edu/fcla/etd/UFE0007362.

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Bergh, Mary Sarah. "Radiographic, Computed Tomographic, And Histologic Study Of Central Tarsal Bone Fractures In Racing Greyhounds." The Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=osu1211974471.

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Kong, Xiang. "Optimization of image quality and minimization of radiation dose for chest computed radiography." Oklahoma City : [s.n.], 2006.

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Abofatira, Mohamed Farag. "A radiographic analysis of the anterior palate as a donor site for bone harvesting." University of the Western Cape, 2015. http://hdl.handle.net/11394/5040.

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Magister Scientiae Dentium - MSc(Dent)<br>Autologous bone grafting in conjunction with dental implant therapy is a well-accepted procedure in oral and maxillofacial rehabilitation. A variety of intraoral donor sites, such as the mandibular symphysis, the mandibular ramus and the maxillary tuberosity have been used in oral and maxillofacial reconstruction. However these sites are associated with complications. In order to reduce these complications, the anterior palate has been proposed as a potential donor site. However, the scientific literature in this regard is sparse, and larger studies are required to investigate the clinical potential of this proposed site. Aim: To determine the volume and density of available bone in the anterior palate that may be used for bone harvesting using cone-beam computed tomography (CBCT) in a select South African population. Materials and methods: One hundred previously acquired CBCT scans taken at the Diagnostic and Radiology Department of Tygerberg Oral Health Centre were analyzed for the required data. These were all acquired from a single CBCT machine (Newtom VGI®, Verona, Italy). The study sample included 52 females and 48 males ranging from ages 20 years to 80 years. The CBCT scans were divided into 3 different age groups. The first age group was between the ages of 20 and 39 years, the second age group was from 40 to 59 years and the third age group was ≥ 60 years. The volume and density of the anterior palate of the different age groups were analyzed using specific criterion. CBCT specific software (Simplant Pro Crystal®) Dentsply implants, Mannheim, Germany was used to standardize the data collection. All data was stored in a Microsoft Excel spreadsheet (Microsoft Corporation, Washington, USA). Results: The mean volume of the anterior palate in this study was 2.11 ± 0.55 cm3, with a minimum volume of 1.04 cm3 and a maximum volume of 3.82 cm3. There was no significant difference in the volume and density of the anterior palate between different age groups and no significant difference in the volume between males and females (p value = 0.227). Conclusions: The anterior palate affords a considerable amount of bone volume which is similar or even more than other intraoral donor sites. The anterior palate is a potential donor site for bone harvesting and CBCT may be regarded as an ideal tool to analyze the amount of bone available for harvesting.
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Li, Geng, and 李耕. "Magnetic resonance, computed tomographic, radiographic and anatomical correlation of dimensions of the metacarpal and proximal phalanx ofthe little finger." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1999. http://hub.hku.hk/bib/B31969641.

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Li, Geng. "Magnetic resonance, computed tomographic, radiographic and anatomical correlation of dimensions of the metacarpal and proximal phalanx of the little finger." Hong Kong : University of Hong Kong, 1999. http://sunzi.lib.hku.hk/hkuto/record.jsp?B21105960.

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Jamjoom, Faris Zainalabedeen. "Positional Accuracy of Prosthetic Treatment Plan Incorporation Into Cone-beam Computed Tomography Scans Using Surface Scan Superimposition." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1498241824233391.

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Adam, Ryan J. "Radiographic assessment of lung anatomy, physiology, and disease in a porcine model of cystic fibrosis and people with cystic fibrosis." Diss., University of Iowa, 2017. https://ir.uiowa.edu/etd/5692.

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Despite affecting many organ systems, the leading cause of morbidity and mortality in the cystic fibrosis (CF) population is lung disease. For the current studies we investigated elements of CF lung disease in a porcine model of CF and in people with CF. Our primary analysis tool was chest computed tomography (CT). To investigate early CF lung disease we examined three week old CF and non-CF pigs. We found three week old CF pigs to have large, irregular tracheal smooth muscle bundles, airways of reduced size, airways of irregular shape, and airways of abnormal distensibility. Three week old CF pig lung parenchyma was more heterogenous in density than three week non-CF pigs, especially in the right cephalad lung. The degree of lung tissue heterogeneity in CF pigs correlated with the degree of lung infection. Three week old CF pigs also had significantly more air trapping upon exhalation, evidence of airflow obstruction, than non-CF pigs. The degree of air trapping correlated with the degree of mucus accumulation in the airways. These data show that CF pigs spontaneously develop hallmark features of CF lung disease within weeks of birth, and that abnormal airway growth and development in CF may contribute to lung disease. This study helped set the foundation for future comparative studies involving CF therapeutics, for example, antibiotics and mucolytics. In adults with CF we performed a before drug, after drug study. The drug was ivacaftor, and it restores the basic underlying defect in a subset of people with CF: impaired function of a particular anion channel. We hypothesized that abnormal airway smooth muscle behavior in people with CF, known as “CF asthma,” is, in part, a primary pathogenic mechanism of CF lung disease. We tested our hypothesis by assaying smooth muscle tone before and after administration of ivacaftor. We limited the time duration to two days. We reasoned two days was long enough for ivacaftor to become effective, but not long enough to reverse long standing lung infection and inflammation which could affect smooth muscle function independently. The implication being, that observed changes would be directly due to restoration of the CF defect. We found evidence suggesting relaxation of airway and vascular smooth muscle tone. And, the change in airway smooth muscle tone correlated with the change in vascular smooth muscle tone. These data suggest that impaired smooth muscle function is a primary element of CF lung disease. Many of the people in our two day ivacaftor study returned for follow up after one year of ivacaftor therapy. We hypothesized that radiographic features of lung disease would improve following one year of ivacaftor therapy. We observed no change in lung volume upon inspiration, but a reduction in expiratory lung volume, approximately half of which occurred within two days. Our airway measurements were confounded by errors in scan reconstruction, however, other published studies report airway wall thinning over long term ivacaftor administration. Taken together, these studies of pigs with CF and people with CF, help us understand this disease.
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Books on the topic "Computed radiographic"

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Kengyelics, S. M. Technical evaluation of FUJI ST-VA computed radiography image plates under standard radiographic conditions. Edited by Cowen A. R, Medical Devices Agency, and Facility for the Assessment of X-ray Imaging at Leeds University. Department of Health, Medical Devices Agency, 1997.

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Kengyelics, S. M. Technical evaluation of the Philips AC3 computed radiography system under high - kVp thorax radiographic conditions. Department of Health, Medical Devices Agency, 1996.

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R, Lotz Preston, ed. Correlative neuroradiology: Intracranial radiographic analysis with computed tomography, angiography, and magnetic resonance imaging. 2nd ed. Wiley, 1985.

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Heismann, Björn J. Spectral CT imaging. SPIE Press, 2012.

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Tateno, Yukio, Takeshi Iinuma, and Masao Takano, eds. Computed Radiography. Springer Japan, 1987. http://dx.doi.org/10.1007/978-4-431-66884-8.

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G, Gale Alastair, ed. Digital mammography: Proceedings of the 2nd International Workshop on Digital Mammography, York, England, 10-12 July 1994. Elsevier, 1994.

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Mullin, Susan Jane. A computer aided revision module for radiography students. The Author], 1987.

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Barkhausen, Jörg. Digital breast tomosynthesis: Technique and cases. Thieme, 2016.

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Veterinary computed tomography. Wiley-Blackwell, 2011.

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Hussein, Esam M. A. Computer Radiation Imaging: Physics and Mathematics of the Forward and Inverse Problems. Elsevier Science & Technology Books, 2011.

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Book chapters on the topic "Computed radiographic"

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Willis, Charles E. "Computed Radiographic Imaging and Artifacts." In Filmless Radiology. Springer New York, 2006. http://dx.doi.org/10.1007/978-1-4612-1402-1_7.

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Beyer, D., W. Gross-Fengels, U. Mödder, G. P. Krestin, F. E. Zanella, and R. Lorenz. "Radiographic, Sonographic, and Computed Tomographic Findings." In Diagnostic Imaging of the Acute Abdomen. Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-71884-7_3.

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Sulcoski, M. F., and J. S. Brenizer. "Computed Neutron Tomography from Real-Time Radiographic Images." In Neutron Radiography. Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3871-7_93.

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Bahk, Yong-Whee. "Dual-Head Planar Pinhole Scintigraphy and Pinhole Single Photon Emission Computed Tomography of Bone." In Combined Scintigraphic and Radiographic Diagnosis of Bone and Joint Diseases. Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/978-3-662-04106-2_17.

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Mallya, Sanjay M. "Radiographic Evaluation of the Alveolar Ridge in Implant Dentistry. Cone Beam Computed Tomography." In Vertical Alveolar Ridge Augmentation in Implant dentistry : A Surgical Manual. John Wiley & Sons, Inc., 2016. http://dx.doi.org/10.1002/9781119082835.ch05.

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Melsen, Birte, and Michel Dalstra. "Rational Basis for Transitioning from 2D to 3D Radiographic Imaging in Orthodontic Practice and Research." In Cone Beam Computed Tomography in Orthodontics: Indications, Insights, and Innovations. John Wiley & Sons, Inc., 2014. http://dx.doi.org/10.1002/9781118674888.ch4.

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Barton, C. F., and G. Ducros. "Workshop on “Computed Tomography”." In Neutron Radiography. Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3871-7_111.

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Seeram, Euclid. "Computed Radiography: Physics and Technology." In Digital Radiography. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-6522-9_3.

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Seeram, Euclid. "Computed Radiography: Physics and Technology." In Digital Radiography. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-3244-9_3.

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van Otterdijk, K. H., B. Shapiro, H. P. Leeflang, and J. F. W. Markgraf. "Computer Controlled Travelling Microdensitometer." In Neutron Radiography. Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3871-7_85.

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Conference papers on the topic "Computed radiographic"

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Jang, Ben K., and Roger S. Gaborski. "Image enhancement for computed radiographic images." In Medical Imaging 1995, edited by Murray H. Loew. SPIE, 1995. http://dx.doi.org/10.1117/12.208699.

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Jang, Ben K. "Multiscale shape analysis for computed radiographic images." In Medical Imaging 1996, edited by Murray H. Loew and Kenneth M. Hanson. SPIE, 1996. http://dx.doi.org/10.1117/12.237960.

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Fujita, Hiroshi, Junji Morishita, Katsuhiko Ueda, Du Y. Tsai, Akiyoshi Ohtsuka, and Tsuyoshi Fujikawa. "Resolution Properties Of A Computed Radiographic System." In 1989 Medical Imaging, edited by Samuel J. Dwyer III, R. Gilbert Jost, and Roger H. Schneider. SPIE, 1989. http://dx.doi.org/10.1117/12.953211.

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Flores, Miguel Angel Neri, Alberto Martinez Villafañe, and Caleb Carreño. "Failure Analysis of Automotive Ultrasonic Parking Sensors." In ISTFA 2016. ASM International, 2016. http://dx.doi.org/10.31399/asm.cp.istfa2016p0237.

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Abstract Automotive ultrasonic parking sensors were analyzed using X- ray computed tomography (XCT or microtomography), in order to determine if there were internal failures generated on the soldering process between copper wires and piezoelectric ceramic on these sensors. This paper reports the use of X-ray radiography and computer image processing for the study of internal defects. By using X-ray tomography technique, pores, cracks, holes, solder balling, insufficient solder, lead related defects, device related defects, and solder bridging may be identified (1-2). When coupled with a real time radiographic detector and image processor, X-ray technology allows instantaneous radiographic imaging and semi-automatic or totally automatic inspection. Analysis was conducted on six produced test samples showing that the application of XCT as a method of quality control of specimens produced by electronic packaging offers a wide range of possibilities to detect defects within materials. There were determined that five sensors contain internal defects on the soldered joints, between the copper wire, and the piezo electric ceramic covered with silver paint, as shown on the computed tomography. Accuracy of XCT method strongly depends on the size of the samples analyzed, but the possibility of obtaining information in 3D nondestructively shows considerable advantages of XCT method over traditional metallographic cross-sectional analysis.
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Felisberto, Marcelo K., Guilherme A. Schneider, Tania M. Centeno, and Lucia V. R. de Arruda. "Automatic Detection of Pipeline Components in Radiographs for Corrosion Monitoring." In 2006 International Pipeline Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/ipc2006-10462.

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This paper introduces new techniques to support industrial radiographic inspection, aiming at automatic corrosion monitoring in pipeline systems. Using the methodologies we proposed, pipeline components to be inspected are automatically detected in the radiographic image, their wall thicknesses are measured and parameters for corrosion detection are computed. For the automatic detection and recognition of pipeline components, we developed a new method that uses image matching techniques in conjunction with genetic algorithms. For measuring the pipe wall thicknesses we used image segmentation techniques based on the analysis of image line profiles. As a result, analysis of pipeline radiographs for corrosion monitoring can be automatically performed, improving the reliability and speed of the inspection process.
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Heindel, Theodore J., Terrence C. Jensen, and Joseph N. Gray. "Visualizing Fluid Flows With X-Rays." In ASME/JSME 2007 5th Joint Fluids Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/fedsm2007-37023.

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There are several methods available to visualize fluid flows when one has optical access. However, when optical access is limited to near the boundaries or not available at all, alternative visualization methods are required. This paper will describe flow visualization using an X-ray system that is capable of digital X-ray radiography, digital X-ray stereography, and digital X-ray computed tomography (CT). The unique X-ray flow visualization facility will be briefly described, and then flow visualization of various systems will be shown. Radiographs provide a two-dimensional density map of a three dimensional process or object. Radiographic images of various multiphase flows will be presented. When two X-ray sources and detectors simultaneously acquire images of the same process or object from different orientations, stereographic imaging can be completed; this type of imaging will be demonstrated by trickling water through packed columns and by absorbing water in a porous medium. Finally, local time-averaged phase distributions can be determined from X-ray computed tomography (CT) imaging, and this will be shown by comparing CT images from two different gas-liquid sparged columns.
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Ertan, Ferihan, Alistair Mackenzie, Hannah J. Urbanczyk, Nicole T. Ranger, and Ehsan Samei. "Use of effective detective quantum efficiency to optimise radiographic exposures for chest imaging with computed radiography." In SPIE Medical Imaging, edited by Ehsan Samei and Jiang Hsieh. SPIE, 2009. http://dx.doi.org/10.1117/12.813650.

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Zhang, Jianguo, Katherine P. Andriole, and H. K. Huang. "Computed radiographic image postprocessing in picture archiving and communication systems." In Medical Imaging 1997, edited by Steven C. Horii and G. James Blaine. SPIE, 1997. http://dx.doi.org/10.1117/12.274585.

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Devi, P. S. Arya, and M. G. Mini. "Compression of Computed Radiographic Images Using Linear Prediction on Wavelet Coefficients." In 2012 International Conference on Advances in Computing and Communications (ICACC). IEEE, 2012. http://dx.doi.org/10.1109/icacc.2012.29.

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Iyer, Nithya K., Careen Lowder, and Daniel A. Culver. "Chest Radiographic And Computed Tomogrpahic Findings In Patients With Ocular Sarcoidosis." In American Thoracic Society 2010 International Conference, May 14-19, 2010 • New Orleans. American Thoracic Society, 2010. http://dx.doi.org/10.1164/ajrccm-conference.2010.181.1_meetingabstracts.a5993.

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Reports on the topic "Computed radiographic"

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Gibbs, K. N., and J. D. Jones. X-ray Computed Tomography and Stereo-Radiographic Inspection Results of the Office of Emergency Response (NA-42) Test Object. Office of Scientific and Technical Information (OSTI), 2005. http://dx.doi.org/10.2172/881329.

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Back, N., D. Schneberk, C. McMillan, S. Azevedo, and M. Gorvad. Research on computed tomography reconstructions from one or two radiographs: A report and the application to FXR radiography. Office of Scientific and Technical Information (OSTI), 1995. http://dx.doi.org/10.2172/74119.

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Groth, Troy. Computer modeling on neutron radiography. Office of Scientific and Technical Information (OSTI), 1993. http://dx.doi.org/10.2172/10120115.

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LaCivita, Kenneth J. Development of the USAF Computed Radiography (CR) Process Control. Defense Technical Information Center, 2008. http://dx.doi.org/10.21236/ada506683.

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Tim Roney, Bob Pink, Karen Wendt, Robert Seifert, and Mike Smith. Digital Radiography and Computed Tomography (DRCT) Product Improvement Plan (PIP). Office of Scientific and Technical Information (OSTI), 2010. http://dx.doi.org/10.2172/1000539.

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Cook, B. User's Guide for the RADIOGRAPHIC HELPER (version 3. 05): A computer algorithm. Office of Scientific and Technical Information (OSTI), 1989. http://dx.doi.org/10.2172/6899629.

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Tim Roney, Robert Seifert, Bob Pink, and Mike Smith. Digital Radiography and Computed Tomography Project -- Fully Integrated Linear Detector ArrayStatus Report. Office of Scientific and Technical Information (OSTI), 2011. http://dx.doi.org/10.2172/1035898.

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Aufderheide, M., H. Martz, and M. Curtin. Design of Mega-Voltage X-ray Digital Radiography and Computed Tomography Performance Phantoms. Office of Scientific and Technical Information (OSTI), 2009. http://dx.doi.org/10.2172/990412.

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Green, William H. Digital Radiography and X-ray Computed Tomography Slice Inspection of an Aluminum Truss Section. Defense Technical Information Center, 2011. http://dx.doi.org/10.21236/ada551774.

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Kramb, V., C. Buck, W. Hoppe, and R. Olding. Research on Advanced Nondestructive Evaluation (NDE) Methods for Materials, Process and Structures. Delivery Order 006: Computed Radiography Crack Detection Validation Study. Defense Technical Information Center, 2012. http://dx.doi.org/10.21236/ada555861.

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