Algorithm for radiation dose reduction with helical dual source coronary computed tomography angiography in clinical practice.
Algorithm for radiation dose reduction with helical dual source coronary computed tomography angiography in clinical practice.
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DOI：
10.1016/j.jcct.2008.07.003
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发表时间：
2008-09-01
影响因子：
5.4
通讯作者：
Berman, Daniel S
中科院分区：
文献类型：
--
作者：
Gutstein, Ariel;Dey, Damini;Berman, Daniel S
背景：在保持诊断图像质量的同时减少冠状动脉CT血管成像(CCTA)的辐射剂量是心脏CT的当务之急。目的：我们的目标是通过结合较低的管电压、尽可能短的全管电流窗口(FTC)和FTC窗口外的最小管电流来降低螺旋双源CCTA中的辐射剂量，并开发一种基于患者的算法来应用这些剂量减少成分。方法：我们比较了100KVP和120KVP(N=118)下心脏周期70%的FTC和45%~75%的FTC窗口(FTC45-75)。FTC70用于心率异常的患者
BACKGROUND: Strategies to reduce the radiation dose of coronary computed tomography angiography (CCTA), while maintaining diagnostic image quality, are imperative for cardiac CT.OBJECTIVE: We aimed to reduce radiation dose during helical dual-source CCTA by combining lower tube voltage, shortest possible full tube current (FTC) window, and minimal tube current outside the FTC window, and to develop a patient-based algorithm for applying these dose-reduction components.METHODS: We compared FTC at 70% of the cardiac cycle (FTC70) to a 45% to 75% window (FTC45-75) using both 100 and 120 kVp (N=118). FTC70 was used in patients with heart rates