Results 31 to 40 of about 2,962,605 (298)

Virtual calibration of whole-body counters to consider the size dependency of counting efficiency using Monte Carlo simulations

Nuclear Engineering and Technology, 2021
The counting efficiencies obtained using anthropomorphic physical phantoms are generally used in whole-body counting measurements to determine the level of internal contamination in the body.
MinSeok Park, Han Sung Kim, Jaeryong Yoo, Chan Hyeong Kim, Won Il Jang, Sunhoo Park   +5 more
doaj   +1 more source

Evaluating bone marrow dosimetry with the addition of bone marrow structures to the medical internal radiation dose phantom

Precision Radiation Oncology, 2023
Background Reliable estimates of radiation dose to bone marrow are critical to understanding the risk of radiation‐induced cancers. Although the medical internal radiation dose phantom is routinely used for dose estimation, bone marrow is not defined in ...
Kristine L. Ferrone, Charles E. Willis, Fada Guan, Jingfei Ma, Leif E. Peterson, Stephen F. Kry   +5 more
doaj   +1 more source

A review of brachytherapy physical phantoms developed over the last 20 years: clinical purpose and future requirements

Journal of Contemporary Brachytherapy, 2021
Within the brachytherapy community, many phantoms are constructed in-house, and less commercial development is observed as compared to the field of external beam.
Sarah Wilby, Antony Palmer, Wojciech Polak, Andrea Bucchi   +3 more
doaj   +1 more source

A Review of Computational Phantoms for Quality Assurance in Radiology and Radiotherapy in the Deep-Learning Era

Journal of Radiation Protection and Research, 2022
The exciting advancement related to the “modeling of digital human” in terms of a computational phantom for radiation dose calculations has to do with the latest hype related to deep learning.
Zhao Peng, N. Gao, Bingzhi Wu, Zhi Chen, X. G. Xu   +4 more
semanticscholar   +1 more source

Organ dose conversion coefficients in CT scans for Korean adult males and females

Nuclear Engineering and Technology, 2022
Dose monitoring in CT patients requires accurate dose estimation but most of the CT dose calculation tools are based on Caucasian computational phantoms.
Choonsik Lee, Tristan Won, Yeon Soo Yeom, Keith Griffin, Choonik Lee, Kwang Pyo Kim   +5 more
doaj   +1 more source

Computational phantoms for investigating impact of noise magnitude on modulation transfer function

Indonesian Journal of Electrical Engineering and Computer Science, 2022
Accurate measurement of spatial resolution in terms of modulation transfer function (MTF) is essential in computed tomography (CT) images. The purpose of this study was to developed a computational phantom that can be used to evaluate the effect of noise
C. Anam, A. Naufal, H. Sutanto, G. Dougherty   +3 more
semanticscholar   +1 more source

Determination of counting efficiency considering the biodistribution of 131I activity in the whole-body counting measurement

Nuclear Engineering and Technology, 2023
Whole-body counters are widely used to assess internal contamination after a nuclear accident. However, it is difficult to determine radioiodine activity due to limitations in conventional calibration phantoms.
MinSeok Park, Jaeryong Yoo, Minho Kim, Won Il Jang, Sunhoo Park   +4 more
doaj   +1 more source

Breast Ductal Computer Phantom [PDF]

, 2007
Most of breast cancers (85%) originate from the epithelium and develop first in the ductolobular structures. Therefore, the mammary epithelium should be investigated in priority by means of an anatomically guided examination. For this purpose (mass screening, surgery navigation), we develop a two-dimensional anatomic phantom which corresponds to an ...
Franceschini, Emilie, Mensah, Serge, Amy, Dominique, Lefebvre, Jean-Pierre   +3 more
openaire   +2 more sources

New thyroid models for ICRP pediatric mesh-type reference computational phantoms

Nuclear Engineering and Technology, 2022
As part of the ICRP Task Group 103 project, we developed ten thyroid models for the pediatric mesh-type reference computational phantoms (MRCPs). The thyroid is not only a radiosensitive target organ needed for effective dose calculation but an important
Yeon Soo Yeom, Chansoo Choi, Bangho Shin, Suhyeon Kim, Haegin Han, Sungho Moon, Gahee Son, Hyeonil Kim, Thang Tat Nguyen, Beom Sun Chung, Se Hyung Lee, Chan Hyeong Kim   +11 more
doaj   +1 more source

ICRP Publication 145: Adult Mesh-Type Reference Computational Phantoms

Annals of the ICRP, 2020
Following the issuance of new radiological protection recommendations in ICRP Publication 103, the Commission released, in ICRP Publication 110, the adult male and female voxel-type reference computational phantoms to be used for calculation of the ...
C. Kim, Y. Yeom, N. Petoussi-Henss, M. Zankl, W. Bolch, C. Lee, C. Choi, T. T. Nguyen, K. Eckerman, H. S. Kim, M. Han, R. Qiu, B. Chung, H. Han, B. Shin   +14 more
semanticscholar   +1 more source