Suzuki Shigeru, Furui Shigeru, Yamaguchi Ichiro, Yamagishi Masafumi, Watanabe Akiko, Abe Toshi, Kobayashi Ikuo
Department of Radiology, Teikyo University School of Medicine, Tokyo, Japan.
Radiology. 2009 Feb;250(2):545-50. doi: 10.1148/radiol.2502080695.
The purpose of this study was to measure the effective dose during abdominal three-dimensional imaging obtained with an angiography unit with a digital flat-panel system on a phantom and to determine dose-area product (DAP)-to-effective dose conversion factors. DAPs and effective doses were evaluated for 163-cm-tall human-shaped phantoms with estimated body weights of 54, 64, and 77 kg, and the effective doses were 2.1, 3.2, and 4.2 mSv, respectively. The DAP-to-effective dose conversion factors were 0.28-0.29 mSv x Gy(-1) x cm(-2). In conclusion, the DAPs were useful for estimating the effective dose during abdominal three-dimensional angiographic imaging.
本研究的目的是在使用数字平板系统的血管造影设备对体模进行腹部三维成像期间测量有效剂量，并确定剂量面积乘积（DAP）与有效剂量的转换因子。对身高163 cm、估计体重分别为54、64和77 kg的人形体模评估了DAP和有效剂量，有效剂量分别为2.1、3.2和4.2 mSv。DAP与有效剂量的转换因子为0.28 - 0.29 mSv×Gy⁻¹×cm⁻²。总之，DAP可用于估计腹部三维血管造影成像期间的有效剂量。
