摘要
目的 :探讨SWAN序列对自发性蛛网膜下腔出血(subarachnoid hemorrhage,SAH)及合并脑室内积血(intraventricular hemorrhage,IVH)的诊断价值。方法 :回顾性分析自发性SAH患者32例,均行CT平扫及MRI T1WI、T2WI、FLAIR、SWAN、DWI检查,分析CT平扫与MRI各序列对各期SAH和IVH的检出率。结果:1急性期:CT平扫、FLAIR序列、SWAN对SAH的诊断敏感度均较高,三者差异无统计学意义,但与MRI其他序列相比,差异有统计学意义(P=0.031)。2亚急性期:T1WI、FLAIR、SWAN对SAH的诊断敏感度优于CT和MR其他序列,差异有统计学意义(P<0.05)。3慢性期:MRI各序列对于SAH的诊断敏感度均明显优于CT,尤其是SWAN序列(P=0.008)。4对SAH合并IVH的检出,急性期CT与SWAN、DWI(b=0 s/mm^2)的检出能力相当,较MRI其他序列强;且亚急性期和慢性期SWAN、DWI(b=0 s/mm^2)的检出能力明显优于CT。结论:SWAN序列对各期SAH的诊断敏感度较CT及MRI其它序列有优势,SWAN、DWI(b=0 s/mm^2)对于SAH合并IVH的检出也有优势,SWAN是目前检出少量SAH及IVH最好的检查方法。
Objective:To study the value of SWAN sequence in the diagnoses of spontaneous subarachnoid hemorrhage and the combination of intraventricular hemorrhage. Methods:Select 32 cases of SAH patients who underwent MRI and CT scan,to compare displayed difference of CT and magnetic resonance for each phase of SAH and IVH. Results: ①In acute phase,the diagnosis sensitivity of SAH was higher on CT,FLAIR,SWA]N,but there had no statistical significance between them. There had statistical significance between them and other MR sequences. ②In sub-acute phase,the diagnosis sensitivity on T1WI,FLAIR, SWAN was higher than CT and other MR sequences,and there was significant difference between them (〈0.05). ③In chronic phase,the diagnosis sensitivity on all sequences of MRI were higher than CT,especially SWAN (P=0.008). ④In acute phase,the detection of intraventricular hemorrhage among CT,SWAN and DWI (b=0 s/mm^2) was similar,and higher than other MR sequences for IVH. In sub-acute phase and chronic phase,the detection of intraventricular hemorrhage of SWAN,DWI (b=0 s/mm^2) was better than CT. Conclusion:①The SWAN is better than CT and other MR sequences to detect SAH in each phase. ②DWI(b=0 s/mm^2) sequence is similar sensitive as SWAN to detect IVH. SWAN is the best method to detect the small amount of SAH and IVH.
出处
《中国中西医结合影像学杂志》
2015年第6期604-607,610,共5页
Chinese Imaging Journal of Integrated Traditional and Western Medicine
基金
湖南省科技局课题(2011SK3188)
关键词
蛛网膜下腔出血
颅内积血
磁共振成像
体层摄影术
X线计算机
Subarachnoid hemorrhage
Intracranial hemorrhage
Magnetic resonance imaging
Tomography
X-ray computed