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RECONSTRUCTION WINDOW ADAPTATION IN ECG-GATED COMPUTED TONOGRAPHY
RECONSTRUCTION WINDOW ADAPTATION IN ECG-GATED COMPUTED TONOGRAPHY
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机译:心电图计算机断层扫描中的重建窗口适应
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摘要
A computed tomography system (100) includes a windowing component (140) that receives an ECG signal that includes a premature heart cycle. The ECG signal is time-synchronized with x-ray projection data of a beating heart. The windowing component (140) either removes or repositions a first reconstruction window within a first heart cycle to correspond to a desired cardiac phase when the premature heart cycle causes the first reconstruction window to correspond to a different cardiac phase, based on available data. A reconstructor (148) that reconstructs projection data corresponding to a plurality of reconstruction windows from different cardiac cycles generates image data indicative of the desired phase of the heart.
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