摘要
目的利用磁敏感加权成像(SWI)、液体衰减反转恢复(FLAIR)、CT诊断蛛网膜下腔出血(SAH),进一步比较联合磁共振成像(MRI)SWI/FLAIR与CT比较评估MRI是否优于CT。方法 25例经临床证实的蛛网膜下腔出血的患者纳入本研究,所有患者均在发病3 d内进行CT、MRI检查。观察CT及MRI图片,将蛛网膜下腔分为8个区进行分析。结果总共145个区域被诊断为SAH,CT诊断了105个区域(72.4%),FLAIR诊断了125个区域(86.2%),SWI诊断了137个区域(94.5%),FLAIR联合SWI诊断了135个区域(93.1%)。结论 FLAIR、SWI对于SAH的显示优于CT,FLAIR对颞枕部病灶的显示具有优势,SWI对中央区域的SAH比较敏感,将FLAIR、SWI两者融合,可以互补,能更准确地诊断SHA。
Objective To compare the utility of susceptibility weighted imaging （SWI） with fluid attenuated in-version recovery （FLAIR） and the established diagnostic techniques CT in their detecting capacity of subarachnoid hemorrhage（SAH）, and to compare the combined SWI/FLAIR MRI data with CT to evaluate whether MRI is more ac-curate than CT. Methods Twenty-five patients with acute SAH underwent CT and MRI within 3 days after symptom onset. CT and MRI data were analyzed.The anatomaical distribution of SAH was subdivided into 8 subarachnoids. Re-sults 145 subarachnoid regions were confirmed as SAH. CT indentified 105（72.4%）, FLAIR identified 125（86.2%）, SWI identified 137（94.0%）, FLAIR combined SWI identified 135（93.1%） involved regions. Conclusion FLAIR, SWI yields a distinctly higher detection rate for SAH than CT alone. Detecting strength of SWI is higher for central areas, whereas FLAIR shows a better detection rate in peripheral areas, combining SWI and FLAIR are complementary to one another, which will do help for diagnosing SHA.
出处
《实用医学影像杂志》
2014年第4期233-236,共4页
Journal of Practical Medical Imaging
关键词
蛛网膜下腔出血
磁共振成像
诊断显像
Subarachnoid hemorrhage
Magnetic resonance imaging
Diagostic imaging
