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目的:观察缺血性脑血管病患者的MRA诊断情况与DSA结果的对比研究及脑血管狭窄分布情况。方法:选择100例在住院期间同时进行过MRA和DSA检查的缺血性脑血管病患者,分别记录患者的MRA及DSA结果并进行统计学分析。结果:100例患者MRA检查共发现81例患者173条血管病变,DSA检查共发现86例患者118条血管病变,而MRA未发现病变但DSA诊断出狭窄病变13例(13%)。各血管MRA结果与DSA结果进行χ2检验,其中ACA、MCA、PCA三条血管结果有显著性差异(P<0.05),其余血管无显著性差异。所有血管DSA结果统计发现轻度狭窄10例,中度狭窄39例,重度狭窄40例,闭塞25例,发育不良4例。结论:绝大多数缺血性脑血管病患者均存在不同程度的脑血管狭窄病变,MRA检查对于颅外血管及后循环血管狭窄的判断基本与DSA一致,但在大脑前动脉、大脑中动脉、大脑后动脉的血管成像与DSA结果有显著性差异,DSA仍然是判断脑血管狭窄的金标准。
Objective: To observe the diagnosis of ischemic cerebrovascular disease in patients with MRA and DSA results of comparative study and distribution of cerebral vascular stenosis. Methods: A total of 100 patients with ischemic cerebrovascular disease undergoing both MRA and DSA during hospitalization were enrolled. The MRA and DSA results of patients were recorded and statistically analyzed. Results: A total of 173 vascular lesions were detected in 81 patients with MRA in 100 patients. A total of 118 vascular lesions in 86 patients were found by DSA. No lesions were found in MRA, but 13 (13%) were diagnosed by DSA. The MRA results of all the vessels were compared with DSA results by χ2 test. The results of ACA, MCA and PCA showed significant difference (P <0.05), but there was no significant difference in other vessels. DSA results of all the blood vessels were found in 10 cases of mild stenosis, moderate stenosis in 39 cases, severe stenosis in 40 cases, occlusion in 25 cases, dysplasia in 4 cases. Conclusion: Most of patients with ischemic cerebrovascular disease have different degrees of cerebral vascular stenosis. MRA examination is consistent with DSA in judging extracranial and posterior vascular stenosis. However, in the anterior cerebral artery, middle cerebral artery, DSA results were significantly different between angiography and posterior cerebral artery angiography. DSA is still the gold standard for judging cerebrovascular stenosis.