RADIATION ABSORBED DOSE TO THE LENS IN DACRYOSCINTIGRAPHY WITH (TCO4-)-TC-99M

被引：24

作者：

ROBERTSON, JS ^{[1
]}

BROWN, ML ^{[1
]}

COLVARD, DM ^{[1
]}

机构：

[1] MAYO CLIN & MAYO FDN,DEPT OPHTHALMOL,ROCHESTER,MN 55901

来源：

RADIOLOGY | 1979年 / 133卷 / 03期

关键词：

D O I：

10.1148/133.3.747

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：

Calculations of the radiation dose to thelens for 99mTcO4- in dacryoscintigraphy are developed in some detail. The results indicate that the absorbed dose to the germinal epithelium of the lens is 2.2 x 10-5 to 1.4 x 10-4 rad/μCi (5.9 x 10-12 to 3.8 x 10-11 Gy/Bq) 99mTcO4- under physiological conditions. With blockage of the lacrimal drainage apparatus, the dose to the lens could increase to 4 x 10-3 rad/μCi (1 x 10-9 Gy/Bq).

引用

页码：747 / 750

页数：4