脑部计算机断层扫描中甲状腺和眼部剂量的研究。

A study of the dose to the thyroid and the eye in computed tomography of the brain.

作者信息

Raeside D E, Anderson D W, Galloway D C

出版信息

Radiology. 1978 Dec;129(3):814-5. doi: 10.1148/129.3.814.

DOI:10.1148/129.3.814

Abstract

Thermoluminescent dosimeters were used to estimate the dose to the thyroid and the eye for routine clinical computed tomography of the brain using an EMI CT5005 scanner (20-sec data acquisition mode, bolus covering the head). The data can be summarized by the linear relations Dt = (7.5 +/- 0.8)N millirads (8 less than or equal to N less than or equal to 18) and De = (39 +/- 5)N + (1400 +/- 200)n millirads (8 less than or equal to N less than or equal to 20, 0 less than or equal to n less than or equal to 6) where Dt is the dose to the tissue anterior to the thyroid, De is the dose to the anterior tissue of the eyelid, N is the total number of CT cuts, and n is the number of cuts in which the globe of the eye is imaged.

摘要

使用热释光剂量计，对使用EMI CT5005扫描仪进行的脑部常规临床计算机断层扫描（20秒数据采集模式，团注覆盖头部）时甲状腺和眼睛所受剂量进行了估算。数据可用线性关系总结为：Dt = (7.5 ± 0.8)N毫拉德（8 ≤ N ≤ 18）以及De = (39 ± 5)N + (1400 ± 200)n毫拉德（8 ≤ N ≤ 20，0 ≤ n ≤ 6），其中Dt是甲状腺前方组织所受剂量，De是眼睑前方组织所受剂量，N是CT扫描层数，n是眼睛球体成像的扫描层数。