MEASUREMENT OF SCATTER FRACTIONS IN ERECT POSTEROANTERIOR AND LATERAL CHEST RADIOGRAPHY

被引：13

作者：

JORDAN, LK ^{[1
]}

FLOYD, CE ^{[1
]}

LO, JY ^{[1
]}

RAVIN, CE ^{[1
]}

机构：

[1] DUKE UNIV, MED CTR,DEPT RADIOL,DIV THORAC IMAGING RES, BOX 3949, DURHAM, NC 27710 USA

来源：

RADIOLOGY | 1993年 / 188卷 / 01期

关键词：

RADIATIONS; MEASUREMENT; THORAX; RADIOGRAPHY;

D O I：

10.1148/radiology.188.1.8511301

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 [临床医学]; 100207 [影像医学与核医学]; 1009 [特种医学];

摘要：

Scatter fractions (SFs) measured in patients undergoing erect posteroanterior (PA) and lateral chest radiography with a 12:1 antiscatter grid are reported. Modifications to the posterior beam-stop (PBS) technique allowed measurement of scatter in these patients, without altering the diagnostic image and without additional radiation exposure. The SF measurements are reported by anatomic location on 42 clinical chest images. Average SF values ranged from 0.27 to 0.90 on lateral radiographs and from 0.27 to 0.68 on PA radiographs. Scatter measurements with the 12:1 grid were found to be greater than estimates from previous PA chest phantom experiments. To the authors' knowledge, they were the first to measure radiation scatter with the PBS technique in patients undergoing PA and lateral chest radiography with the antiscatter grid.

引用

页码：215 / 218

页数：4

共 17 条

[1]

SCANNING MULTIPLE SLIT ASSEMBLY - PRACTICAL AND EFFICIENT DEVICE TO REDUCE SCATTER [J].