CAJ | 학술논문

目的探讨磁敏感加权成像(SWI)在检出脑微出血灶(CMB)及隐匿性CMB (rCMB)中的价值。方法回顾性分析45例有脑CMB患者的MR影像资料，观察病灶大小、部位等特征，比较常规MR成像序列及SWI序列的检出率。检查序列包括常规MR成像序列(T1WI、T2WI、FLAIR及DWI)及SWI序列。SWI采用Ven-Bold-HR三维梯度回波序列。结果共检出197个CMB，常规MR序列检出162个，SWI检出191个，SWI的CMB检出率是常规序列的1.18倍，两者的差异有统计学意义(χ2=22.90，P<0.01)。SWI序列可以检出常规序列不能检出的隐匿性CMB(rCMB)。结论 SWI在检出CMB及rCMB中优于常规MRI序列，建议作为MRI检查的常规序列之一。
목적탐토자민감가권성상(SWI)재검출뇌미출혈조(CMB)급은닉성CMB (rCMB)중적개치。방법회고성분석45례유뇌CMB환자적MR영상자료，관찰병조대소、부위등특정，비교상규MR성상서렬급SWI서렬적검출솔。검사서렬포괄상규MR성상서렬(T1WI、T2WI、FLAIR급DWI)급SWI서렬。SWI채용Ven-Bold-HR삼유제도회파서렬。결과공검출197개CMB，상규MR서렬검출162개，SWI검출191개，SWI적CMB검출솔시상규서렬적1.18배，량자적차이유통계학의의(χ2=22.90，P<0.01)。SWI서렬가이검출상규서렬불능검출적은닉성CMB(rCMB)。결론 SWI재검출CMB급rCMB중우우상규MRI서렬，건의작위MRI검사적상규서렬지일。
To evaluate the detection ability of MR susceptibility weighted imaging (SWI) in the cerebral micro-bleedings (CMB) and recessive cerebral microbleedings (rCMB). Materials and Methods: Magnetic resonance images of 45 cases with cerebral micro-bleeding were retrospectively analyzed. The features including size and location of the cerebral micro-bleedings were observed, and the detection rate of MRI and SWI were compared. These sequences of magnetic resonance imaging (T1WI, T2WI, FLAIR, DWI) and SWI were carried out. SWI was the VEN-BOLDHR gradient echo sequence. Results: Altogether, 197 CMBs were deceted with a total of 162 CMB lesions on MRI, 191 CMB lesions on SWI. The detection rate of SWI is 1.18 times of the routine sequences. There was statistic difference in showing cerebral micro-bleeding among those sequences(χ2=22.90, P<0.01). Conclusion: SWI has a higher value in the detection of CMB and rCMB than the routine sequences, and should be one of the conventional sequences.