DETERMINATIONS OF ORGAN DOSES AND EFFECTIVE DOSE EQUIVALENTS FROM COMPUTED TOMOGRAPHIC EXAMINATION

被引：73
|
作者：
NISHIZAWA, K [1 ]
MARUYAMA, T [1 ]
TAKAYAMA, M [1 ]
OKADA, M [1 ]
HACHIYA, J [1 ]
FURUYA, Y [1 ]
机构：
[1] NATL INST RADIOL SCI,DIV PHYS,CHIBA 260,JAPAN
来源：
BRITISH JOURNAL OF RADIOLOGY | 1991年 / 64卷 / 757期
关键词：
ORGAN DOSE MEASUREMENT; EFFECTIVE DOSE EQUIVALENT; COMPUTED TOMOGRAPHY; MEDICAL EXPOSURE;
D O I：
10.1259/0007-1285-64-757-20
中图分类号：
R8 [特种医学]; R445 [影像诊断学];
学科分类号：
1002 ; 100207 ; 1009 ;
摘要：
The organ or tissue doses were determined with a phantom measurement for 12 types of CT scanners widely used in Japan. Two types of thermoluminescent dosimeters were used for the dose determinations in a Rando woman phantom. The effective dose equivalents recommended by the International Commission on Radiological Protection were calculated using the measured organ or tissue doses. It was found that the CT scanners currently available give quite different organ or tissue doses. When selecting the optimum technical factors for scanning, therefore, it is important to take into consideration the balance of the image quality and the radiation exposure to patients.
引用
收藏
页码：20 / 28
页数：9
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