Results 261 to 270 of about 13,337,459 (299)

How accurate is size-specific dose estimate in pediatric body CT examinations?

Pediatric Radiology, 2016
Huisi Ai, Boaz Karmazyn, Fangqian Ouyang   +2 more
exaly   +2 more sources

Improved Estimates of Trunk and Head CT Radiation Dose: Development of Size-Specific Dose Estimate.

Journal of the American College of Radiology, 2019
K. Strauss, S. McKenney, S. Brady
semanticscholar   +3 more sources

Radiation doses and size-specific dose estimate from CT brain examinations according to head sizes in a tertiary hospital in Malaysia

Radiation Physics and Chemistry, 2021
The aim of the study is to evaluate radiation dose and its relationship with the effective head diameter obtained during CT brain examination performed via a 640 multi-slice CT scanner.
Z. Kayun, M. K. Abdul Karim, H. H. Harun, A. H. Shaari, R. Mahmud, Hamzaini Bin Abdul Hamid, A. Sabarudin, M. Chew   +7 more
semanticscholar   +1 more source

Optimizing CT radiation dose based on patient size and image quality: the size-specific dose estimate method

Pediatric Radiology, 2014
David Larson
exaly   +2 more sources

Technical note: Advancing size‐specific dose estimates in CT examinations: Dose estimates at longitudinal positions of scans

Medical Physics, 2021
PurposeAmerican Association of Physicists in Medicine (AAPM) (Report 204) introduced the size‐specific dose estimate (SSDE) for the average dose to the center of a fixed‐mA scan. International standards establish a method that CT manufacturers and radiation dose index monitoring software may use to calculate SSDE(z) at longitudinal positions of scans ...
Xinhua, Li, Theodore A, Marschall, Kai, Yang, Bob, Liu   +3 more
openaire   +2 more sources

Influence of 320-detector-row volume scanning and AAPM report 111 CT dosimetry metrics on size-specific dose estimate: a Monte Carlo study

Australasian Physical and Engineering Sciences in Medicine, 2016
Tomonobu Haba, Masanao Kobayashi, Shuji Koyama   +2 more
exaly   +2 more sources

Entrance skin dosimetry and size-specific dose estimate from pediatric chest CTA [PDF]

Journal of Cardiovascular Computed Tomography, 2014
BackgroundSize-specific dose estimate (SSDE), which corrects CT dose index (CTDI) for body diameter and is a better measure of organ dose than is CTDI, has not yet been validated in vivo.ObjectiveThe purpose was to determine the correlation between SSDE ...
Xinhua Li, Bob Liu, Mannudeep K Kalra
exaly   +2 more sources

SIZE-SPECIFIC DOSE ESTIMATES IN PEDIATRIC BRAIN CT IN RELATION TO AGE AND WEIGHT

Radiation Protection Dosimetry, 2023
Abstract The size-specific dose estimate (SSDE) is used for radiation dose management in computed tomography (CT) and represents patient’s absorbed dose more accurately than volume CT dose index. The relationship between SSDE and age or weight was investigated using 980 pediatric brain CT scans.
Kaoru, Fujii, Yusuke, Inoue, Hiroyasu, Itoh, Ryosuke, Sasa, Hirofumi, Hata, Kohei, Mitsui   +5 more
openaire   +2 more sources

Automated size-specific dose estimates using deep learning image processing

Medical Image Analysis, 2021
An automated vendor-independent system for dose monitoring in computed tomography (CT) medical examinations involving ionizing radiation is presented in this paper. The system provides precise size-specific dose estimates (SSDE) following the American Association of Physicists in Medicine regulations. Our dose management can operate on incomplete DICOM
Jan Maria Juszczyk, Pawel Badura, Joanna Czajkowska, Agata Wijata, Jacek Andrzejewski, Pawel Bozek, Michal Smolinski, Marta Biesok, Agata Sage, Marcin Rudzki, Wojciech Wieclawek   +10 more
openaire   +4 more sources

Size-specific dose estimates for various weighting factors of CTDI equation

Physical and Engineering Sciences in Medicine, 2019
Size-specific dose estimate (SSDE) was proposed by the American Association of Physicists in Medicine (AAPM) Task Group 204 to consider the effect of patient size in the x-ray CT dose estimation. Size correction factors to calculate SSDE were derived based on the conventional weighted CT dose index (CTDIw) equation.
Tomonobu Haba, Masanao Kobayashi, Shuji Koyama   +2 more
openaire   +2 more sources