论文部分内容阅读
目的探讨双源64排CT血管成像对颅脑血管的诊断价值。方法对43例患者先行64排血管照影(computed tomography angiography,CTA),观察颅内外主要血管情况,并与数字减影脑血管照影(digital subtraction angiography,DSA)获取图像进行比较。动脉粥样硬化所导致血管狭窄,以DSA为标准,按轻、中、重度,分别计算CTA与DSA特异性、敏感性。结果 43例患者中2例检出动脉瘤,2例烟雾病,1例上矢状窦血栓形成,38例动脉粥样硬化所导致血管狭窄,CTA与DSA比较,特异性和敏感性分别为轻度狭窄96%、96%;中度狭窄95%、97%;重度狭窄97%、96%。结论 CTA与DSA比较,无论颅内血管动脉瘤、烟雾病还是动脉粥样硬化所导致血管狭窄,均具有高度一致性,且创伤小、费用低。
Objective To investigate the diagnostic value of dual-source 64-slice CT angiography in cranial and cerebral vessels. Methods Forty-three patients underwent computed tomography angiography (CTA). The main intracranial and extracranial vessels were observed and compared with digital subtraction angiography (DSA) images. Atherosclerosis caused by vascular stenosis, DSA as the standard, according to light, moderate and severe, were calculated CTA and DSA specificity and sensitivity. Results Two of the 43 patients had aneurysms, 2 moyamoya disease, one case of superior sagittal sinus thrombosis and 38 cases of atherosclerosis. The specificity and sensitivity of CTA and DSA were respectively mild Degree of stenosis 96%, 96%; moderate stenosis 95%, 97%; severe stenosis 97%, 96%. Conclusion Compared with DSA, CTA is highly consistent with minimal intracranial aneurysm, moyamoya disease and atherosclerosis, with less trauma and lower cost.