Results 11 to 20 of about 1,077 (169)

Radiation dose metrics in multidetector computed tomography examinations: A multicentre retrospective study from seven tertiary care hospitals in Kerala, South India

Indian Journal of Radiology and Imaging, 2018
Background: Presently, computed tomography (CT) is the most important source of medical radiation exposure. CT radiation doses vary considerably across institutions depending on the protocol and make of equipment.
Binoj Varghese, Indu Kandanga, Paul Puthussery, Dhanesh Vijayan, S P Harish Babu, M K Aneesh, Muhammad Noufal, E V Binu, Arun C Babu, Sheen M James, Siva Kumar   +10 more
doaj   +1 more source

Intraindividual variation of dose parameters in oncologic CT imaging.

PLoS ONE, 2021
The objective of this study is to identify essential aspects influencing radiation dose in computed tomography [CT] of the chest, abdomen and pelvis by intraindividual comparison of imaging parameters and patient related factors.
Isabel Lange, Babak Alikhani, Frank Wacker, Hans-Juergen Raatschen   +3 more
doaj   +1 more source

Evaluation of Low-Dose 3D Skull CT Images in Craniosynostosis [PDF]

Iranian Journal of Medical Physics, 2022
Introduction: Computed Tomography (CT) is nowadays used widely to differentiate normal brain cranium sutures from abnormal ones in pediatric patients with the aim of early treatment.
Fariba Zarei, Zeynab Mashayekhi, Vani Vardhan Chatterjee, Sabysachi chatterjee, Rezvan Ravanfar Haghighi   +4 more
doaj   +1 more source

Benchmarking adult CT-dose levels to regional and national references using a dose-tracking software: a multicentre experience

Insights into Imaging, 2017
Objectives To benchmark CT-dose data for standard adult CT studies to regional and national reference levels using a dose-tracking system. Methods Data from five CT systems from three hospitals were collected over a 1- to 2.5-year period (2012–2014 ...
Lotte Pyfferoen, Tom H. Mulkens, Federica Zanca, Timo De Bondt, Paul M. Parizel, Jan W. Casselman   +5 more
doaj   +1 more source

Radiation Dose Management in Pediatric Brain CT According to Age and Weight as Continuous Variables

Tomography, 2022
The diagnostic reference levels (DRLs) for pediatric brain computed tomography (CT) are provided for groups divided according to age. We investigated the relationships of radiation dose indices (volume CT dose index and dose length product) with age and ...
Yusuke Inoue, Hiroyasu Itoh, Anri Waga, Ryosuke Sasa, Kohei Mitsui   +4 more
doaj   +1 more source

Image quality and radiation dose assessment for the clinically applied 16-slice CT scanner using PMMA phantom and quality assurance phantom

The Egyptian Journal of Radiology and Nuclear Medicine, 2023
The goal of this study was to assess the radiation dose delivered accuracy and the acceptable image quality parameter from the 16-slice Philips CT scanner in order to evaluate the current methodology for quality controls of computed tomography systems ...
Tadelech Sisay Mekonin, Tilahun Tesfaye Deressu   +1 more
doaj   +1 more source

Quantitative assessment of Pulmonary Alveolar Proteinosis (PAP) with ultra-dose CT and correlation with Pulmonary Function Tests (PFTs). [PDF]

PLoS ONE, 2017
BACKGROUND:The purpose of this study was to investigate whether ultra-low-dose chest computed tomography (CT) can be used for visual assessment of CT features in patients with pulmonary alveolar proteinosis (PAP) and to evaluate the relationship between ...
Xin Sui, Qianni Du, Kai-Feng Xu, Xinlun Tian, Lan Song, Xiao Wang, Xiaoli Xu, Zixing Wang, Yuyan Wang, Jun Gu, Wei Song, Zhengyu Jin   +11 more
doaj   +1 more source

Investigating the Effect of Patient-Related Factors on Computed Tomography Radiation Dose Using Regression and Correlation Analysis

Applied Sciences
Computed tomography (CT) is a widely utilized diagnostic imaging modality in medicine. However, the potential risks associated with radiation exposure necessitate investigating CT exams to minimize unnecessary radiation. The objective of this study is to
Mohammad AlShurbaji, Sara El Haout, Akchunya Chanchal, Salam Dhou, Entesar Dalah   +4 more
doaj   +1 more source

Establishment of Diagnostic Reference Levels for Computed Tomography Scanning in Hamadan [PDF]

Journal of Biomedical Physics and Engineering, 2020
Background: New advancements have increased the capabilities of computed tomography as a sectional medical imaging modality. An important note is assessing absorbed dose to patients and minimizing it when performing computed tomography examinations.
S Jafari, K Ghazikhanlu Sani, M Karimi, H Khosravi, R Goodarzi, M Pourkaveh   +5 more
doaj   +1 more source

Assessment of Computed Tomography Dose Index (CTDI) During CT Pelvimetry Using Monte Carlo Simulation

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
doaj   +1 more source