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目的探讨MSCT数字减影血管成像(MSCT-DSA)诊断颅内动脉瘤的价值。方法68例临床怀疑颅内动脉瘤者中行传统的MSCTA检查者32例,MSCT-DSA检查者36例,所有MSCTA检查均行MIP、VR、MPR和CTVE重建。结果传统的MSCTA检查对颅内动脉瘤诊断的检出率、敏感性、特异性和准确性分别为93.8%、93.8%、100%和93.8%,而MSCT-DSA者均为100%,但两者无统计学差异(P>0.05);MSCT-DSA法的瘤体邻近颅骨完全分离率为100%,高于传统的MSCTA检查(81.3%)(P<0.05);MSCT-DSA法的后处理时间为(9.3±5.4)min,短于传统的MSCTA检查[(20.6±9.7)min](P<0.05)。结论颅内动脉瘤的MSCT-DSA检查优于传统的MSCTA检查。
Objective To investigate the value of MSCT digital subtraction angiography (MSCT-DSA) in the diagnosis of intracranial aneurysms. Methods Sixty-eight patients with suspected intracranial aneurysms were enrolled in the study. There were 32 cases of traditional MSCTA and 36 cases of MSCT-DSA. All MSCTA were performed MIP, VR, MPR and CTVE reconstruction. Results The detection, sensitivity, specificity and accuracy of traditional MSCTA for diagnosis of intracranial aneurysms were 93.8%, 93.8%, 100% and 93.8%, respectively, while those of MSCT-DSA were 100% There was no significant difference between the two groups (P> 0.05). The complete separation rate of the tumor adjacent to the tumor by MSCT-DSA was 100%, higher than that of the conventional MSCTA (81.3%) (P <0.05) The time was (9.3 ± 5.4) min, shorter than that of the conventional MSCTA [(20.6 ± 9.7) min] (P <0.05). Conclusions MSCT-DSA of intracranial aneurysms is better than traditional MSCTA.