PROPELLER技术在改善固定义齿脑梗塞患者图像伪影中的意义  

PROPELLER Technology in Improving the Fixed Denture Image Artifacts in the Patients with Cerebral Infarction

作　　者：闵加艳[1] 谭勇[1] 龚水根[1] 陈金华[1] 

机构地区：[1]第三军医大学大坪医院野战外科研究所放射科,重庆400042

出　　处：《中国CT和MRI杂志》2015年第10期117-118,共2页Chinese Journal of CT and MRI

摘　　要：目的探讨磁共振螺旋桨技术(periodically rotated overlapping parallel lines enhanced reconstruction,PROPELLER)在改善固定义齿脑梗塞患者MR图像伪影中的作用。方法对2013年1月至2015年1月来我科行MRI检查装有固定义齿的患者81例,分别采用PROPELLER DWI技术和常规FSE DWI序列进行头颅MRI扫描,对采集到的MRI图像进行观察。结果PROPELLER DWI检出脑梗塞病灶78例,未检出病灶3例分别是额叶1例,颞叶2例;FSE DWI检出脑梗塞病人20例,未检出病灶61例,额叶、颞叶、小脑及脑干出现伪影分别为19例、39例、1例、2例。结论 PROPELLER技术能有效消除磁敏感伪影,改善固定义齿脑梗塞患者的MR图像质量,增加脑梗塞病灶的检出率,对改善MR图像质量有非常好的作用。Objective To evaluate the value of periodically rotated overlapping parallel lines enhanced reconstruction dwi technique for artifact reduction in MRI.Methods The 81patients of clinical suspicion of cerebral infarction from 2013 to 2015 with denture underwent MRI examination.To take the PROPELLERdwi and FSE dwi respectively. Results PROPELLER DWI in the detection of cerebral infarction lesion in 78 cases, frontal lobe, temporal lobe artifacts, respectively 1 cases, 2 cases; FSE DWI was detected in 20 patients with cerebral infarction, frontal lobe, temporal lobe, cerebellum and brainstem artifacts were 19 cases, 39 cases, 1 cases, 2 cases.Conclusion PROPELLER DWI for detection of cerebral infarction lesions have a good advantage, at the same time for the case with denture is effective, can eliminate the magnetic susceptibility artifacts, has a very active role in improving the image quality.

关 键 词：MR PROPELLER DWI 伪影 固定义齿 

分 类 号：R651.1[医药卫生—外科学]