A framework for analytical estimation of patient-specific CT dose

被引：0
|
作者：
Youn, Hanbean [1 ,2 ]
Kim, Jin Woo [3 ]
Jeon, Hosang [1 ,2 ]
Nam, Jiho [1 ]
Yun, Seungman [4 ]
Cho, Min Kook [4 ]
Kim, Ho Kyung [2 ,3 ]
机构：
[1] Pusan Natl Univ, Yangsan Hosp, Dept Radiat Oncol, Yangsan 47011, Gyeongsangnam D, South Korea
[2] Pusan Natl Univ, Ctr Adv Med Engn, Busan 46241, South Korea
[3] Pusan Natl Univ, Sch Mech Engn, Busan 46241, South Korea
[4] Samsung Elect Co, Hlth & Med Equipment, Suwon 16677, Gyeonggi Do, South Korea
来源：
MEDICAL IMAGING 2016: PHYSICS OF MEDICAL IMAGING | 2016年 / 9783卷
关键词：
Computed tomography; dose; effective dose; patient-specific dose; ray tracing; Monte Carlo; CTDI; COMPUTED-TOMOGRAPHY; TIME;
D O I：
10.1117/12.2216726
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The authors introduce an algorithm to estimate the spatial dose distributions in computed tomography (CT) images. The algorithm calculates dose distributions due to the primary and scattered photons separately. The algorithm only requires the CT data set that includes the patient CT images and the scanner acquisition parameters. Otherwise the scanner acquisition parameters are extracted from the CT images. Using the developed algorithm, the dose distributions for head and chest phantoms are computed and the results show the excellent agreements with the dose distributions obtained using a commercial Monte Carlo code. The developed algorithm can be applied to a patient-specific CT dose estimation based on the CT data.
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收藏
页数：7
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