T2WI imaging method of low-motion-sensitivity TSE acquisition sequence

The invention provides a T2WI imaging method for a low-motion-sensitivity TSE acquisition sequence, and belongs to the technical field of medical image.The method comprises the following steps that S1, the phase encoding direction is modified to be consistent with the short axis of a scanning part;...

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Bibliographische Detailangaben
Hauptverfasser: SHI QINGLEI, WAN XIANG, ZHANG ANDU, WANG RENZHI, WANG WEISHUAI
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention provides a T2WI imaging method for a low-motion-sensitivity TSE acquisition sequence, and belongs to the technical field of medical image.The method comprises the following steps that S1, the phase encoding direction is modified to be consistent with the short axis of a scanning part; s2, reducing the phase direction FOV; s3, the repetition time is adjusted; s4, increasing the average excitation frequency; s5, increasing the acquisition times of the fractional acquisition technology; s6, adjusting the length of a sequence echo chain; s7, increasing the resolution of the reading direction; and S8, scanning to obtain a T2WI axial image. According to the method, through parameter compensation of the T2WI-TSE sequence, on the premise of not using a blade point technology (BLADE), motion artifacts caused by non-autonomous motion of a patient in the T2WI axial position image are effectively removed, the collection efficiency of the sequence is improved, the spatial resolution of the T2WI axial positio