论文部分内容阅读
目的:探讨磁敏感加权序列成像在检测急性脑梗塞微出血中的临床应用价值。方法:选取45例急性脑梗死合并脑微出血(cerebral micro-bleeding,CMBs)患者,行常规CT、MRI及磁敏感加权成像(SWI)扫描,对CMBs的表现进行分型,并对比各个序列对CMBs的检出率。结果:45例患者共检出CMBs 238个,A型163个,B型75个。A型多分布于基底节区及侧脑室旁,呈点状/圆形或卵圆形,边界清楚。B型发生于梗死病灶内,呈不规则小条片样低信号。将SWI序列对CMBs的检出率与各个常规MR扫描序列(T1WI、T2WI、FLAIR、DWI)对CMBs的检出率进行统计学比较,差异具有统计学意义(P<0.001)。结论 :SWI序列是显示急性梗死灶中CMBs的敏感检查手段。针对CMBs病灶的不同分型对脑梗死微出血的治疗和预后有重要意义。
Objective: To investigate the clinical value of magnetic susceptibility weighted sequence imaging in the detection of acute cerebral infarction micro-hemorrhage. Methods: Forty-five patients with acute cerebral infarction complicated with cerebral micro-bleeding (CMBs) were selected for routine CT, MRI and SWI scanning to classify the manifestations of CMBs. CMBs detection rate. Results: A total of 238 CMBs were detected in 45 patients, 163 A patients and 75 B patients. A type distribution in the basal ganglia and lateral ventricle, dotted / round or oval, clear boundary. Type B occurred in the infarct lesions, showed irregular strip-like low signal. The detection rate of CMBs by SWI was statistically compared with the detection rate of CMBs by various routine MR scan sequences (T1WI, T2WI, FLAIR, DWI). The difference was statistically significant (P <0.001). Conclusions: The SWI sequence is a sensitive test for CMBs in acute infarcts. Different types of CMBs for the treatment of cerebral infarction and bleeding prognosis of great significance.