Accuracy and calibration of integrated radiation output indicators in diagnostic radiology: A report of the AAPM Imaging Physics Committee Task Group 190
Accuracy and calibration of integrated radiation output indicators in diagnostic radiology: A report of the AAPM Imaging Physics Committee Task Group 190
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DOI：
10.1118/1.4934831
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发表时间：
2015-12-01
期刊：
影响因子：
3.8
通讯作者：
Bercha, Ishtiaq H.
中科院分区：
文献类型：
--
作者：
Lin, Pei-Jan P.;Schueler, Beth A.;Bercha, Ishtiaq H.
由于采用透视作为主要成像工具的学科不断增多，以及透视在介入和心血管血管造影手术中的长期广泛使用，安装了“剂量面积乘积”(DAP) 计来监测和记录传递给患者的辐射剂量。在某些情况下，使用相关放射学参数和几何信息来计算而不是测量辐射剂量或输出值。 AAPM 任务组 190 (TG-190) 于 2008 年成立，旨在评估 DAP 计的精度。此后，术语“DAP 计”已修订为空气比释动能面积积 (KAP) 计。 TG 190（诊断放射学中综合辐射输出指标的准确性和校准）的职责也已重新调整，以调查“综合辐射输出指标的准确性和校准”，这反映在任务组的标题中，以包括在有或没有物理“仪表”存在的情况下可以获取 KAP 的情况。为了实现这一目标，开发了验证测试协议，以将显示的辐射输出值与外部测量值进行比较。这些测试协议应用于许多临床系统，以收集有关现场剂量显示值准确性的信息。 (C) 2015 年美国医学物理学家协会。
Due to the proliferation of disciplines employing fluoroscopy as their primary imaging tool and the prolonged extensive use of fluoroscopy in interventional and cardiovascular angiography procedures, "dose-area-product" ( DAP) meters were installed to monitor and record the radiation dose delivered to patients. In some cases, the radiation dose or the output value is calculated, rather than measured, using the pertinent radiological parameters and geometrical information. The AAPM Task Group 190 (TG-190) was established to evaluate the accuracy of the DAP meter in 2008. Since then, the term "DAP-meter" has been revised to air kerma-area product (KAP) meter. The charge of TG 190 (Accuracy and Calibration of Integrated Radiation Output Indicators in Diagnostic Radiology) has also been realigned to investigate the "Accuracy and Calibration of Integrated Radiation Output Indicators" which is reflected in the title of the task group, to include situations where the KAP may be acquired with or without the presence of a physical "meter." To accomplish this goal, validation test protocols were developed to compare the displayed radiation output value to an external measurement. These test protocols were applied to a number of clinical systems to collect information on the accuracy of dose display values in the field. (C) 2015 American Association of Physicists in Medicine.