磁共振Propeller技术消除伪影的临床应用

Clinical Application of MR Propeller Technique in Artifacts Reduction

目的:探讨Propeller技术在临床的应用价值。方法:日常工作中随机对19例磁共振头颅检查中出现躁动或有固定金属异物患者,应用Propeller技术进行成像,与常规T2FRFSE序列、DWI序列进行对比扫描。其中因躁动产生运动伪影进行PropellerT2加权成像11例,因金属异物产生伪影进行PropellerDWI成像8例,同时进行PropellerT2WI、DWI成像5例。结果:19例应用Propeller技术进行T2WI、DWI成像消除因运动、金属引起的伪影均获得满意图像。结论:应用PropellerT2WI、DWI成像技术明显消除患者因运动或金属异物造成的伪影,可生成高分辨无伪影具有临床诊断意义的理想图像。

Objective： To study the clinical application value of the propeller technique in reduction of the artifacts. Methods： Propeller T2WI and DWI sequence were performed in 19 patients with head diseases who moved during examination or had fixed metal implants within body,propeller images were compared with traditional T2 FRFSE and DWI. There were motion artifacts in 11 cases of mania on traditional T2 FRFSE and DWI sequences. Results： On propeller T2WI and DWI sequences motion and metal artifacts were all reduced in nineteen cases, satisfied MR images were obtained. Conclusion： MR Propeller technique can provide high resolution images without artifacts for the clinical diagnosis.