Department of Radiology, The Jikei University Kashiwa Hospital, 3-19-18 Nishi-Shimbashi, Minato-ku, Tokyo, 105-8471 Japan.
Department of Radiology, The Jikei University Kashiwa Hospital, 163-1 Kashiwashita, Kashiwa-shi, Chiba 277-8567, Japan.
Radiat Prot Dosimetry. 2020 Dec 3;191(3):369-375. doi: 10.1093/rpd/ncaa133.
The risk in computed tomography (CT) examinations is radiation exposure. We aimed to develop a specialised tape measure for determining the size-specific dose estimate (SSDE) for patients undergoing CT scans. The scanning parameters used were those of the abdominal protocol in our institute. With this method, the SSDE220 and standard deviations obtained from CT images for the liver, pelvic and lung areas, corresponded closely to the SSDEtape and standard deviations obtained using the tape measure. We thus devised a new idea that allows the estimation of the SSDE220 using a specialised tape measure before the CT examination, allowing for an informed explanation of the radiation dose to the patient. Although the tape measure developed in this study is specific to one particular CT instrument, the method could be adapted to a wide range of radiography applications.
计算机断层扫描（CT）检查的风险来自于辐射。我们旨在开发一种专门的卷尺，用于确定进行 CT 扫描的患者的体型特异性剂量估计（SSDE）。使用的扫描参数是我们研究所腹部协议中的参数。使用这种方法，从 CT 图像中获得的肝脏、骨盆和肺部区域的 SSDE220 和标准偏差与使用卷尺获得的 SSDEtape 和标准偏差非常吻合。因此，我们想到了一个新的主意，即在进行 CT 检查之前使用专门的卷尺来估计 SSDE220，从而可以向患者解释辐射剂量。虽然本研究中开发的卷尺特定于特定的 CT 仪器，但该方法可以适应广泛的放射学应用。
