Relevant bibliographies by topics / Scan duration

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Scan duration'

Author: Grafiati
Published: 5 June 2025
Last updated: 2 August 2025

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Journal articles on the topic "Scan duration"

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Vernaleken, Ingo, Lisa Peters, Mardjan Raptis, et al. "The applicability of SRTM in [18F]fallypride PET investigations: Impact of scan durations." Journal of Cerebral Blood Flow & Metabolism 31, no. 9 (2011): 1958–66. http://dx.doi.org/10.1038/jcbfm.2011.73.

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The high-affinity radioligand [18F]fallypride (FP) is frequently used for quantification of striatal/extrastriatal D2/3 receptors and the receptor occupancies of antipsychotics (APs). Its 110 minutes half-life allows long scan durations. However, the optimum scan duration is a matter of debate. This investigation focuses on scan-duration-related effects on simplified reference tissue model (SRTM) results and the time point of transient equilibrium in a large sample of dynamic FP positron emission tomography (PET) scans. Fifty drug-free and 50 AP-treated subjects underwent FP-PET scans (180 min
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Abdul Wahab, Nor Shafiza, Noorazrul Yahya, Ahmad Nazlim Yusoff, et al. "Effects of Different Scan Duration on Brain Effective Connectivity among Default Mode Network Nodes." Diagnostics 12, no. 5 (2022): 1277. http://dx.doi.org/10.3390/diagnostics12051277.

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Background: Resting-state functional magnetic resonance imaging (rs-fMRI) can evaluate brain functional connectivity without requiring subjects to perform a specific task. This rs-fMRI is very useful in patients with cognitive decline or unable to respond to tasks. However, long scan durations have been suggested to measure connectivity between brain areas to produce more reliable results, which are not clinically optimal. Therefore, this study aims to evaluate a shorter scan duration and compare the scan duration of 10 and 15 min using the rs-fMRI approach. Methods: Twenty-one healthy male an
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Kremp, S., D. Hellwig, Chr Alexander, C.-M. Kirsch, and A. Schaefer. "Influence of single-photon-transmission scan duration measured with the ECAT ART PET-scanner." Nuklearmedizin 39, no. 06 (2000): 156–65. http://dx.doi.org/10.1055/s-0038-1632264.

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Summary Aim: The aim was to study the influence of singlephoton-transmission scan duration in 3D-PET on the quantitative values of attenuation coefficients and noise in transmission images and of activity concentrations and noise in attenuation corrected emission images of thorax phantom- and patient data. Method and material: Using dual collimated Cs-137 singles transmission sources (Eγ = 662 keV, A = 2* 614 MBq) on an ECAT ART tomograph series of transmission scans of a thorax phantom were acquired pre- and post-injection of 18F. 17 patients underwent two transmission scans. The scan time of
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de la Rosa, Ezequiel, Diana M. Sima, Jan S. Kirschke, Bjoern Menze, and David Robben. "Detecting CTP truncation artifacts in acute stroke imaging from the arterial input and the vascular output functions." PLOS ONE 18, no. 3 (2023): e0283610. http://dx.doi.org/10.1371/journal.pone.0283610.

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Background Current guidelines for CT perfusion (CTP) in acute stroke suggest acquiring scans with a minimal duration of 60-70 s. But even then, CTP analysis can be affected by truncation artifacts. Conversely, shorter acquisitions are still widely used in clinical practice and may, sometimes, be sufficient to reliably estimate lesion volumes. We aim to devise an automatic method that detects scans affected by truncation artifacts. Methods Shorter scan durations are simulated from the ISLES’18 dataset by consecutively removing the last CTP time-point until reaching a 10 s duration. For each tru
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Maharani, Virda, Arie Utariani, Lucky Andriyanto, and Bambang Harjono. "The Length Of Stay In Patients Undergoing Diagnostic MRI And CT-Scan With Intravenous Anesthesia At Outpatient Clinic Dr. Soetomo General Hospital: An Overview." Journal of Health Sciences 14, no. 02 (2021): 97–102. http://dx.doi.org/10.33086/jhs.v14i02.1748.

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Background: Magnetic Resonance Imaging (MRI) and Computerized Tomography (CT) Scans might be challenging for children or patients with anxiety or claustrophobia. The use of general anesthesia aims to increase the success rate, but inadequate management can result in longer length of stay. Purpose: To analyze patients' length of stay on MRI and CT-scan with intravenous anesthesia. Methods: A descriptive observational study. The datas were collected retrospectively from the medical records in General Diagnostic Center. Total of 721 patients who underwent MRI or CT Scan procedures with intravenou
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Holden, J. E., L. Eriksson, P. E. Roland, S. Stone-Elander, L. Widen, and M. Kesselberg. "Direct Comparison of Single-Scan Autoradiographic with Multiple-Scan Least-Squares Fitting Approaches to PET CMRO2 Estimation." Journal of Cerebral Blood Flow & Metabolism 8, no. 5 (1988): 671–80. http://dx.doi.org/10.1038/jcbfm.1988.114.

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The time course of local cerebral radioactivity concentration after bolus inhalation of oxygen gas labeled with O-15 was measured in a rapid dynamic sequence of positron tomographic images. Four normal subjects were studied at rest. In each study, 15 multiple-slice image sets were acquired over a 3-min period in a Scanditronix model 384 tomograph. The radioactivity concentration in arterial blood was measured at 1-s intervals by means of a pump-fed flow-through detector. Pump effluent was directed to discrete samples that were separated into plasma and cell fractions to estimate the accumulati
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Lumish, Heidi S., Manavjot S. Sidhu, Kimberly Kallianos, Thomas J. Brady, Udo Hoffmann, and Brian B. Ghoshhajra. "Reporting Scan Time Reduces Cardiac MR Examination Duration." Journal of the American College of Radiology 11, no. 4 (2014): 425–28. http://dx.doi.org/10.1016/j.jacr.2013.05.037.

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Dietze, Martijn M. A., Britt Kunnen, Casper Beijst, and Hugo W. A. M. Jong. "Adaptive scan duration in SPECT: Evaluation for radioembolization." Medical Physics 47, no. 5 (2020): 2128–38. http://dx.doi.org/10.1002/mp.14095.

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Tuncel, Hayel, Denise Visser, Maqsood Yaqub, et al. "Effect of Shortening the Scan Duration on Quantitative Accuracy of [18F]Flortaucipir Studies." Molecular Imaging and Biology 23, no. 4 (2021): 604–13. http://dx.doi.org/10.1007/s11307-021-01581-5.

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Abstract Purpose Dynamic positron emission tomography (PET) protocols allow for accurate quantification of [18F]flortaucipir-specific binding. However, dynamic acquisitions can be challenging given the long required scan duration of 130 min. The current study assessed the effect of shorter scan protocols for [18F]flortaucipir on its quantitative accuracy. Procedures Two study cohorts with Alzheimer’s disease (AD) patients and healthy controls (HC) were included. All subjects underwent a 130-min dynamic [18F]flortaucipir PET scan consisting of two parts (0–60/80–130 min) post-injection. Arteria
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Halvachizadeh, Sascha, Till Berk, Alexander Pieringer, et al. "Is the Additional Effort for an Intraoperative CT Scan Justified for Distal Radius Fracture Fixations? A Comparative Clinical Feasibility Study." Journal of Clinical Medicine 9, no. 7 (2020): 2254. http://dx.doi.org/10.3390/jcm9072254.

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Introduction: It is currently unclear whether the additional effort to perform an intraoperative computed tomography (CT) scan is justified for articular distal radius fractures (DRFs). The purpose of this study was to assess radiological, functional, and clinical outcomes after surgical treatment of distal radius fractures when using conventional fluoroscopy vs. intraoperative CT scans. Methods: Inclusion criteria: Surgical treatment of DRF between 1 January 2011 and 31 December 2011, age 18 and above. Group distribution: intraoperative conventional fluoroscopy (Group Conv) or intraoperative
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Dissertations / Theses on the topic "Scan duration"

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Rudhall, Andrew Peter. "Ultrashort laser pulse shaping for novel light fields and experimental biophysics." Thesis, University of St Andrews, 2013. http://hdl.handle.net/10023/3682.

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Broadband spectral content is required to support ultrashort pulses. However this broadband content is subject to dispersion and hence the pulse duration of corresponding ultrashort pulses may be stretched accordingly. I used a commercially-available adaptive ultrashort pulse shaper featuring multiphoton intrapulse interference phase scan technology to characterise and compensate for the dispersion of the optical system in situ and conducted experimental and theoretical studies in various inter-linked topics relating to the light-matter interaction. Firstly, I examined the role of broadband ul
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Book chapters on the topic "Scan duration"

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Fan, Qiuping, Minggang Su, and Luyi Zhou. "Impact of Scan Duration on PET/CT Maximum Standardized Uptake Value Measurement." In Lecture Notes in Electrical Engineering. Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-7618-0_405.

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Li, Xiaotang, Jiansong Zhou, and Xiaoyan Liu. "Influence of Scan Duration on the Reliability of Resting-State fMRI Regional Homogeneity." In Communications in Computer and Information Science. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-662-45643-9_42.

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Al-Showarah, Suleyman, Naseer AL-Jawad, and Harin Sellahewa. "Effects of User Age on Smartphone and Tablet Use, Measured with an Eye-Tracker via Fixation Duration, Scan-Path Duration, and Saccades Proportion." In Lecture Notes in Computer Science. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-07440-5_1.

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Téot, Luc. "Atrophic Scars: Reinforcing the Flap Mattress Using Adipocyte Transfer in Paraplegic Patients at Risk of Pressure Ulcer Recurrence." In Textbook on Scar Management. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-44766-3_63.

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AbstractAtrophic scars may be defined as depressive areas on the skin, due to a defect of fatty tissue under the skin. This situation may lead to adherence to the depth (fascia, bone, tendon) to be a source of functional impairment. Most of the atrophic scars are secondary to acne localized over the face. Multiple techniques were proposed to restore the volume and uniformize the surface, like laser, injection of fat, microneedling, microdermabrasion, dermal fillers, and surgical techniques such as subcision and platlet rich plasma (PRP). On the basis of level 1 evidence currently available, it
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Moortgat, Peter, Jill Meirte, Ulrike Van Daele, Mieke Anthonissen, Tine Vanhullebusch, and Koen Maertens. "Vacuum Massage in the Treatment of Scars." In Textbook on Scar Management. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-44766-3_54.

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AbstractVacuum massage is a noninvasive mechanical massage technique performed with a mechanical device that lifts the skin by means of suction to create and mobilize a skin fold. It was invented by a French engineer suffering from burn scars after a car accident and has since then been frequently used for the treatment of burn scars.The two most reported physical effects of vacuum massage were improvement of the tissue hardness and the elasticity of the skin. Besides physical effects, a variety of physiological effects are reported in the literature, for example, an increased number of fibrob
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Hu, Dan, Kangfu Han, Jiale Cheng, and Gang Li. "Consecutive-Contrastive Spherical U-Net: Enhancing Reliability of Individualized Functional Brain Parcellation for Short-Duration fMRI Scans." In Lecture Notes in Computer Science. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-72069-7_9.

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Aras, Turgay. "Dyslipidemia Screening." In Newborn and Childhood Screening Programmes. Nobel Tip Kitabevleri, 2024. http://dx.doi.org/10.69860/nobel.9786053358961.13.

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Dyslipidemia is lipoprotein metabolism disorders characterized by high total cholesterol (TC), LDL-C, non-HDL-C, triglyceride (TG) and low HDL-C.Although lipid and lipoprotein levels vary according to age and gender, acceptable, borderline high and high values ​​have been determined for children.Dyslipidemia can occur for various reasons, such as dietary saturated and trans fats, consumption of refined carbohydrates and sugar, alcohol, medications, endocrine/metabolic/renal problems, infections and genetic factors.The frequency and duration of dyslipidemia screening are planned according to ag
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Srivinas, Srividya. "Employing Specific Immediate Complete Anterior Guidance Development (ICAGD) Occlusal Adjustment Protocols to Achieve Short Disclusion Time." In Advances in Medical Technologies and Clinical Practice. IGI Global, 2024. https://doi.org/10.4018/978-1-6684-9313-7.ch011.

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Disclusion Time Reduction (DTR) performed with the Immediate Complete Anterior Guidance Development (ICAGD) coronoplasty, is a well-established computer guided occlusal adjustment treatment protocol for treating the occluso-muscle subset of Temporomandibular Disorders (TMD). ICAGD aims to reduce prolonged duration (time in seconds) occlusal surface friction that occurs between opposing posterior teeth during mandibular excursions when patients normally chew, and when they parafunction. Long duration posterior friction initiates prolonged posterior tooth periodontal ligament fiber compressions
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Luy, Burkhard. "Fast Pulsing 2D NMR Methods." In Fast 2D Solution-state NMR. The Royal Society of Chemistry, 2023. http://dx.doi.org/10.1039/bk9781839168062-00060.

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In typical NMR experiments 90 percent of the time is used for doing nothing. It is necessary to wait until sufficient polarization is recovered for the next scan. Many tricks have been developed during decades of NMR spectroscopy. The first systematic study involved the use of β-pulses, i.e. pulses with flip angles significantly smaller than 90°, in conventional 1D experiments to obtain the maximum signal-to-noise ratio per experiment time, leading to the well-known Ernst-angle. The principle of retaining a certain amount of reservoir polarization for the following scan can be expanded to many
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"Gynaecological oncology." In Oncology, edited by Paul R. Harnett, John Cartmill, and Paul Glare. Oxford University PressNew York, NY, 1999. http://dx.doi.org/10.1093/oso/9780192629784.003.0009.

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Abstract A 70-year-old woman develops abdominal distension and discomfort of 6-weeks duration. Her family doctor obtains a CT scan of the abdomen and pelvis, which reveals a I 0-cm mass in the right adnexum with cystic and solid components. The omentum is ‘thickened’, and ascites is present. Serum CA 125 is 790 units/ml. A presumptive diagnosis of ovarian carcinoma is made. After ensuring fitness for anaesthesia, the patient undergoes cytoreductive surgery involving omentectomy, enbloc total abdominal hysterectomy, bilateral salpingo-oophorectomy, and re section of the sigmoid colon. At the en
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Conference papers on the topic "Scan duration"

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Zhao, W., Z. Huang, W. Li, et al. "Shorten scan duration for multi-parametric imaging." In 2024 IEEE Nuclear Science Symposium (NSS), Medical Imaging Conference (MIC) and Room Temperature Semiconductor Detector Conference (RTSD). IEEE, 2024. http://dx.doi.org/10.1109/nss/mic/rtsd57108.2024.10655438.

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Zhuang, Mingzan, Xianru Li, Zhifen Qiu, and Tianwu Xie. "Variability of Radiomic Features in 18F-FDG PET/MR Brain Imaging: Impact of Scan Duration and Tracer Dose." In 2024 12th European Workshop on Visual Information Processing (EUVIP). IEEE, 2024. https://doi.org/10.1109/euvip61797.2024.10772844.

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Cole, D. E., B. G. Dixon, and F. L. Keohan. "New Low Toxicity, Multi-Metal Active Vapor Phase Corrosion Inhibitors." In CORROSION 1999. NACE International, 1999. https://doi.org/10.5006/c1999-99495.

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Abstract Traditional vapor phase corrosion inhibitors (VCIs) were developed for short-term protection of steel articles. VCIs have been applied for protecting metallic structures between stages of manufacturing, between manufacturing and deployment, and in enclosed service environments. Some of the problems associated with this corrosion inhibiting application include: protecting dissimilar metallic structures, avoiding toxic materials such as nitrite salts and formaldehyde emitting compounds, and the need for longer duration corrosion protection. Several types of organic compounds were deriva
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Videm, Ketil. "The Anodic Behaviour of Iron and Steel in Aqueous Solutions with CO2, HCO3−,CO32− and Cl−." In CORROSION 2000. NACE International, 2000. https://doi.org/10.5006/c2000-00039.

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Abstract Laboratory experiments were carried out in deoxygenated brine with one bar CO2 and different concentrations of hydrogen carbonate. The experiments were of short duration, usually less than two hours. The electrochemical techniques used were cyclic voltametry and electrochemical impedance spectroscopy (EIS). The cyclic voltammetry was performed with an AC modulated signal, so also impedance at a given frequency was obtained besides the DC results. The anodic dissolution rate below a pH about 6 took place with two different mechanisms. The change of mechanism presented itself in cyclic
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Ramadan, Rifki, Gilang Titah Ramadhan, Wei-Cheng Shen, et al. "Influence of Negative Pressure and Duration on Skin Thickness in Scar Healing." In 2024 International Conference on Consumer Electronics - Taiwan (ICCE-Taiwan). IEEE, 2024. http://dx.doi.org/10.1109/icce-taiwan62264.2024.10674301.

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Spark, Amy, Ivan Cole, David Law, and Liam Ward. "MIC Studies of Buried Potable Water Pipelines Using Semi-solid Agar as an Analogue for Soil." In CORROSION 2016. NACE International, 2016. https://doi.org/10.5006/c2016-07850.

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Abstract Seventy percent of the Australian water pipeline network, predominately critical transmissions mains, is constructed of ferrous materials which are highly susceptible to corrosion, particularly microbiologically influenced corrosion (MIC), when buried in soil. A novel technique for the study of MIC in soil to further the understanding of localized corrosion on the external surface of water pipelines is being developed. This novel test method utilizes agar to simulate both the physical structure and chemical components of soil more closely than the traditionally used aqueous solutions.
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Maldonado, Julio G., and James W. Skogsberg. "Cracking Susceptibility of Duplex Stainless Steel at an Intermediate Temperature in the Presence of H2S Containing Environments." In CORROSION 2004. NACE International, 2004. https://doi.org/10.5006/c2004-04134.

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Abstract The use of duplex stainless steels in the oil and gas industry has received special consideration due to their good corrosion resistance, mechanical properties and weldability. Specifically, duplex stainless steels possess excellent chloride pitting resistance and stress corrosion cracking resistance. In this study, the cracking susceptibility of duplex stainless steel at 80°C in the presence of H2S containing environments was investigated. Specifically, environments containing 1,000 ppm and 100,000 ppm Cl- brines with a pH of 3 and 4.5, respectively, and with H2S partial pressures of
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Takeuchi, Haruhiko, and Noriyuki Matsuda. "Scan-path analysis by the string-edit method considering fixation duration." In 2012 Joint 6th Intl. Conference on Soft Computing and Intelligent Systems (SCIS) and 13th Intl. Symposium on Advanced Intelligent Systems (ISIS). IEEE, 2012. http://dx.doi.org/10.1109/scis-isis.2012.6505116.

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Wang, Wen Bo, Yuan Zhang, Yin Bing, et al. "The Temporality of Duration: An Exploratory Study on Slit-Scan Photography." In SIGGRAPH Talks '25: Special Interest Group on Computer Graphics and Interactive Techniques Conference Talks. ACM, 2025. https://doi.org/10.1145/3721239.3734110.

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Emialyanenko, E. V., and K. V. Paddubny. "FREQUENTLY USED PARAMETERS OF THE DIAGNOSTIC PROTOCOL ON THE QUALITATIVE AND QUANTITATIVE CHARACTERISTICS OF THE DIAGNOSTIC PET IMAGE." In SAKHAROV READINGS 2022: ENVIRONMENTAL PROBLEMS OF THE XXI CENTURY. International Sakharov Environmental Institute of Belarusian State University, 2022. http://dx.doi.org/10.46646/sakh-2022-2-268-271.

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The analysis of the influence of the scan duration and reconstruction algorithms on the quality of the diagnostic PET image was performed, the trends in the dependence of noise and signal-to-noise ratio on the scan duration were determined.
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