上消化道荧光透视检查中的组织剂量

Tissue doses in the upper gastrointestinal fluoroscopy examination.

作者信息

Suleiman O H, Anderson J, Jones B, Rao G U, Rosenstein M

机构信息

Office of Training and Assistance, Food and Drug Administration, Rockville, Md. 20857.

出版信息

Radiology. 1991 Mar;178(3):653-8. doi: 10.1148/radiology.178.3.1994397.

DOI:10.1148/radiology.178.3.1994397

PMID:1994397

Abstract

A method was developed to estimate tissue doses from the upper gastrointestinal fluoroscopy examination. It involved measuring the technical parameters of the clinical examination, partitioning the dynamic examination into a set of discrete x-ray fields, and generating corresponding tissue does tables with an existing computer program. Knowledge of the radiation exposures associated with each of the fields enabled the calculation of tissue doses for the entire dynamic examination. In this limited sample (eight patients), fluoroscopy times ranged from 108 to 183 seconds. Radiation exposures ranged from 2.3 to 7.2 mC/kg (9.1-28 R), thyroid doses from 0.15 to 3.5 mGy (15-350 mrad), uterine doses from 0.16 to 1.0 mGy (16-100 mrad), lung doses from 0.90 to 4.2 mGy (90-420 mrad), and active bone marrow doses from 0.81 to 5.4 mGy (81-540 mrad).

摘要

开发了一种从上消化道荧光透视检查估计组织剂量的方法。该方法包括测量临床检查的技术参数，将动态检查划分为一组离散的X射线场，并使用现有的计算机程序生成相应的组织剂量表。了解与每个场相关的辐射暴露情况后，便可计算整个动态检查的组织剂量。在这个有限的样本（8名患者）中，透视时间为108至183秒。辐射暴露范围为2.3至7.2 mC/kg（9.1 - 28 R），甲状腺剂量为0.15至3.5 mGy（15 - 350 mrad），子宫剂量为0.16至1.0 mGy（16 - 100 mrad），肺部剂量为0.90至4.2 mGy（90 - 420 mrad），活跃骨髓剂量为0.81至5.4 mGy（81 - 540 mrad）。