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摘要目的比较腹部和骨盆区的同步MR/PET、PET/CT扫描及顺序MR和PET扫描后再融合获得的3种融合影像的解剖对位情况。在不同的呼吸时相,采取不同的登记流程及门控协议分别进行同步和顺序胸部MR/PET扫描,比较其解剖对位程度。材料与方法本研究由医院伦理委员会批准认可,所有参与者均签署知情同意书。28例行腹部同步MR/PET、PET/CT扫描及顺序MR/PET扫描后影像融合,分析三者的解剖对位情况。7例行胸部MR/PET扫描,评估在不同呼吸时相、不同工作程序及MR门控协议所采集的影像质量。
Abstract Objective To compare the anatomic alignment of three kinds of fusion images obtained by synchronous MR / PET, PET / CT scan and sequential MR and PET scan in the abdomen and pelvis. At different respiratory phases, different registration procedures and gated protocols were used to perform synchronous and sequential chest MR / PET scans to compare the anatomic alignment. Materials and Methods The study was approved by the Hospital Ethics Committee and all participants signed an informed consent form. Twenty-eight patients underwent MR imaging with synchronous MR / PET, PET / CT scan and sequential MR / PET scan. The anatomic alignment of the three was analyzed. Seven routine chest MR / PET scans were performed to assess image quality acquired at different respiratory phases, different procedures, and MR gating protocols.