Results 31 to 40 of about 5,652,430 (282)
Monte Carlo dose index estimation in computed tomography
AIMS Bioengineering, 2020 We numerically study the computed tomography dose index (CTDI) quantity based on the Monte Carlo method using GATE software. In this work, it was demonstrated that the CTDI values decreased following an exponential form as a function of phantom diameter. As expected, the absorbed dose is shown to have a good relationship which increases linearly with X-
Moncef ATI +4 more
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Estimating Reference Dose Measurements during Common Computed Tomographic Procedures
King Khalid University Journal of Health Sciences, 2020 Background: Medical X-rays are the largest man-made source of public exposure to ionizing radiation. In CT examination, the probability of radiation-induced cancer is more than other x-ray examinations.
Hussain M. Almohiy +5 more
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Iodine-123 labeled reboxetine analogues for imaging of noradrenaline transporter in brain using single photon emission computed tomography [PDF]
, 2012 Preliminary investigation of the radioiodinated (S,S)-reboxetine analogue, 123I-INER, in baboons showed this tracer to have promise for imaging the noradrenaline transporter (NAT) using single photon emission computed tomography (SPECT).
Sutherland, A. +17 more
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In-situ Analysis of Laminated Composite Materials by X-ray Micro-Computed Tomography and Digital Volume Correlation [PDF]
, 2013 The complex mechanical behaviour of composite materials, due to internal heterogeneity and multi-layered composition impose deeper studies. This paper presents an experimental investigation technique to perform volume kinematic measurements in composite ...
Dupré, J.C. +9 more
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Computed tomography dose index for head CT in northern Nigeria
Radiation Protection Dosimetry, 2015 Computed tomography dose index w and dose length product were recorded for the purpose of developing diagnostic reference levels (DRLs) for radiation dose optimisation. The study was conducted in three radiology departments with CT centres in Northern Nigeria.
Garba, I +3 more
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Patient Dose Estimation Using CT-Expo Software at Two Hospitals in North-Central Nigeria
Southern Clinics of Istanbul Eurasia, 2018 INTRODUCTION[|]Simulation software has aided the estimation of organ dose from computed tomography (CT) examinations. The aim of this study was to use the CT-Expo (SASCRAD, Fritz-Reuter-Weg, Buchholz, Germany) software to determine volume CT dose index ...
Mary-ann Etim Ekpo +2 more
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Diagnostics, 2022 The purpose of this experimental study on recently deceased human cadavers was to investigate whether (I) the radiation exposure of the cervical spine CT can be reduced comparable to a dose level of conventional radiography (CR); and (II) whether and ...
Zsuzsanna Deak +8 more
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BMC Medical Imaging, 2022 Introduction Diagnostic Reference Levels (DRLs), typically set at the 75th percentile of the dose distribution from surveys conducted across a broad user base using a specified dose-measurement protocol, are recommended for radiological examinations ...
Geoffrey Erem +7 more
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A novel volume based cone beam computed tomography periapical index
, 2021 Introduction: The purpose of this study was to evaluate the variations in volume of periapical lesions scored using cone beam computed tomography periapical index (CBCTPAI) and develop a new volume based periapical index.
Zhao, Wei +6 more
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Atom Indonesia, 2023 A pelvimetry examination is sometimes prescribed to a pregnant woman at the end of her pregnancy in order to assess the dimensions of her pelvis prior to childbirth.
M. Aabid, S Semghouli, A. Choukri
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