计算机断层摄影中的前瞻性心脏门控

Prospective cardiac gating in computed tomography

Abstract

一种采集前瞻性门控心脏投影数据的计算机断层摄影扫描器(10)。扫描控制器(42)引起所述扫描器(10)在患者的心动周期的目标心脏相位的预测位置处采集投影数据。误差确定器(44)确定目标相位和实际采集投影数据的相位之间的误差。根据所述误差,在接下来的心动周期中对患者进行重新扫描。
A computed tomography scanner (10) acquires prospectively gated cardiac projection data. A scan controller (42) causes the scanner (10) to acquire projection data at the predicted location of a target cardiac phase in a cardiac cycle of the patient. An error determiner (44) determines an error between the target phase and the phase at which the projection data was actually acquired. Depending on the error, the patient is rescanned in a subsequent cardiac cycle.

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    CN-104939861-ASeptember 30, 2015苏州海斯菲德信息科技有限公司, 东南大学基于分段调速的活体ct扫描控制方法