多尼尔HM3体外冲击波碎石机辐射控制程序的有效性

Effectiveness of radiation control program for Dornier HM3 lithotriptor.

作者信息

Griffith D P, Gleeson M J, Politis G, Glaze S

机构信息

Scott Department of Urology, Baylor College of Medicine, Houston, Texas.

出版信息

Urology. 1989 Jan;33(1):20-5. doi: 10.1016/0090-4295(89)90060-5.

DOI:10.1016/0090-4295(89)90060-5

PMID:2643243

Abstract

Radiation exposure during extracorporeal shock-wave lithotripsy (ESWL) was calculated using a "worst-case method" in 135 randomly selected patients. The patients were divided into four groups according to body weight: small (less than 140 pounds), medium (141-180 pounds), large (181-220 pounds), and very large (greater than 220 pounds). Average skin exposure was found to be 15.2 R (from 1.2 to 95.6 R). After implementation of a "radiation awareness program" radiation exposure was calculated in 128 cases (matched for body weight and stone burden) and average exposure was 9.5 R (from 0.9 to 33.4 R) with a reduction of 20, 37, 33, and 62 percent for each group, respectively. Radiation exposure reduction was primarily due to a reduction in the number of radiographic "snapshots" taken as a result of preferential use of special-mode fluoroscopic "stills."

摘要

采用“最坏情况法”对135例随机选取的患者进行体外冲击波碎石术（ESWL）期间的辐射暴露计算。根据体重将患者分为四组：小体重组（小于140磅）、中体重组（141 - 180磅）、大体重组（181 - 220磅）和超大体重组（大于220磅）。发现平均皮肤暴露量为15.2伦琴（范围为1.2至95.6伦琴）。实施“辐射意识计划”后，对128例（根据体重和结石负荷匹配）进行了辐射暴露计算，平均暴露量为9.5伦琴（范围为0.9至33.4伦琴），每组的暴露量分别降低了20%、37%、33%和62%。辐射暴露的降低主要是由于优先使用特殊模式荧光透视“静态图像”，从而减少了拍摄的射线照片“快照”数量。