Golder W, Weiner G
Klinik für Radiologie und Nuklearmedizin, Klinikum Benjamin Franklin, Freie Universität Berlin.
Rofo. 2001 Aug;173(8):756-62. doi: 10.1055/s-2001-16391.
To contribute data on radiation exposure in dynamic X-ray procedures and to compare them with anthropometric parameters.
50 venographies of the lower extremity, 51 abdominal arteriographies, and 121 double contrast examinations of the small bowel were carried out and the dose-area product (DAP) measured for each of the procedures. Additionally, fluoroscopy time, number of shots, body height, body weight, and the sagittal diameter of the examined region were recorded. Dose measurements were statistically evaluated and the following data determined: Frequency distribution, mean, median, 25%- and 75 percentiles as well as correlations with sex, body weight, and diameters.
Median DAP was 587 (men: 540; women: 636) cGycm2 with venography of the lower extremities. DAP/min was better correlated with body weight (r = 0.663) than with diameters of the thigh (r = 0.611). Mean DAP was 14,869 (18,070; 10,980) cGycm2 with abdominal arteriography. DAP/min was badly correlated both with body weight (r = 0.285) and diameters of the abdomen (r = 0.249). Mean DAP was 4527 (5096; 4114) cGycm2 with enteroclysis. DAP/min was well correlated with both body weight (r = 0.621) and diameters of the abdomen (r = 0.628).
DAP of venography of the lower extremity and enteroclysis is greatly influenced by the constitution of the patient. The differences between men and women are, however, not as striking as with static X-ray procedures. By contrast, in abdominal arteriography body weight and diameter play a limited role for radiation exposure.
提供动态X射线检查中辐射暴露的数据，并将其与人体测量参数进行比较。
进行了50例下肢静脉造影、51例腹部动脉造影和121例小肠双重对比检查，并测量了每个检查的剂量面积乘积（DAP）。此外，记录了透视时间、拍摄次数、身高、体重和检查区域的矢状径。对剂量测量进行了统计评估，并确定了以下数据：频率分布、均值、中位数、第25百分位数和第75百分位数，以及与性别、体重和直径的相关性。
下肢静脉造影的DAP中位数为587（男性：540；女性：636）cGycm²。DAP/分钟与体重（r = 0.663）的相关性优于与大腿直径（r = 0.611）的相关性。腹部动脉造影的平均DAP为14,869（18,070；10,980）cGycm²。DAP/分钟与体重（r = 0.285）和腹部直径（r = 0.249）的相关性都很差。小肠灌肠造影的平均DAP为4527（5096；4114）cGycm²。DAP/分钟与体重（r = 0.621）和腹部直径（r = 0.628）都有很好的相关性。
下肢静脉造影和小肠灌肠造影的DAP受患者体质的影响很大。然而，男女之间的差异不如静态X射线检查那么明显。相比之下，在腹部动脉造影中，体重和直径对辐射暴露的作用有限。
