多层螺旋CT血管造影诊断颅内动脉瘤的价值——附23例报告

Value of multislice spiral X-ray computer tomography angiography on the diagnosis of intracranial aneurysm——a report of 23 cases

目的：探讨多层螺旋X线计算机体层成像血管造影（multislice spiral X—ray computer tomography angiography．MSCTA）诊断颅内动脉瘤的价值。方法：对23例经手术或数字减影血管造影术（digital subtraction angiography，DSA）证实的颅内动脉瘤患者的临床资料进行数理分析，重点分析MSCTA检查结果及其与手术或DSA检查的符合情况。结果：23例患者中，MSCTA发现动脉瘤22个（1例左颈内动脉瘤漏诊），其中颈内动脉7个，大脑前动脉6个，大脑中动脉5个，大脑后动脉2个，后交通动脉2个。MSCTA上显示动脉瘤直径3—20mm。MSCTA所显示动脉瘤的位置、大小、形态（窄颈或宽底）与DSA或手术结果基本相符。结论：MSCTA是一种无创性的检查技术，诊断颅内动脉瘤特异度较高，可显示清晰颅内动脉瘤，可作为手术或介入治疗动脉瘤的术前诊断方法。

Objective： To evaluate the value of multislice spiral X-ray computer tomography angiography （MSCTA） on the diagnosis of intracranial aneurysm. Methods： Clinical datas and results of MSCTA were analyzed in 23 patients with intracranial aneurysms confirmed by （digital subtraction angiography, DSA） and operation. Results： 22 aneurysms in 23 patients were found by MSCTA. 7 aneurysms were in the internal carotid artery, 6 aneurysms were in the anterior cerebral artery, 5 aneurysms were in the middle cerebral artery, 2 aneurysms were in the posterior cerebral artery and 2 were in the posterior communicating artery. 1 aneurysm was missed by MSCTA. The diameters were between 3 - 20 mm on MSCTA. The results of intracranial aneurysms showed by MSCTA were in accordant with the results of DSA and operation. Conclusion： MSCTA is a non-invasive technique with high specificity on the diagnosis of intracranial aneurysm. It can be a valuable diagnostic method for surgery or interventional therapy.