摘要
目的探讨CT与MRI在蛛网膜下隙出血（SAH）急性期诊断中的价值。方法对96例初诊为SAH的患者进行CT和MRI检查，结合临床表现进行相关分析。结果对原发性SAHCT的确诊率为76．5％，MRI的确诊率为0。CT诊断继发性SAH43例。结合MRI检查，诊断继发性SAH5例。结论CT能快速确诊SAH，又有助于鉴别原发性和继发性SAH。若CT阴性者不能排除SAH需作MRI检查。MRI对原发性SAH急性期诊断价值有限，对继发性SAH诊断价值较高。
Objective To appraise the value of CT and MRI in diagnosis of subarachnoid hemorrhage (SAH). Methods The comparative study on CT and MRI and clinical manifestation were reported in 96 cases with SAH. Results The definitive diagnosis was 75. 6% in primary SAH by CT, MRI couldn' t be used to diagnose acute primary SAH. Finally 43 of 96 cases had been diagnosed definitively as SAH followed cerebral hemorrhage, and 45 cases were diagnosed secondary SAH combined by MRI. Conclusion CT may be valuable in diagnosis of acute SAH, and MRI was less sensitive for diagnosing primary SAH, but it was helpful in diagnosis of secondary SAH.
关键词
蛛网膜下腔出血
CT
NMR
成像
Subarachnoid hemorrhage Tomography, x - ray computed Magnetic resonance imaging
