连续2D TOF法MRA对椎动脉病变的临床应用价值

目的：采用连续2DTOF法MRA无创成像技术探讨椎动脉病变的MRA表现及其临床应用价值．方法：对350例椎动脉病变病人和50例正常人分别进行磁共振血管成像，并对检查结果进行分析研究．结果：把正常人椎动脉平均分三段测量直径，得到MRA椎动脉正常值，左侧（4．1±0．79）mm，右侧（3．2±0．83）mm．350例椎动脉病变病人中，椎动脉扭曲26例，椎动脉狭窄320例（其中轻度狭窄85例，中度狭窄147例，重度狭窄88例），椎动脉完全闭塞4例．结论：MRA是椎动脉病变的重要检查方法，对本病的诊断、分型、治疗方法的选择和预后判断具有重要价值．

Clinical Value of Continuous 2D TOF MRA in Diagnosing Vertebrarterial Lesions

Objective： To study the image features of vertebrarterial lesions in MR angiography （MRA） via atraumatic continuous 2D time of flight （TOF） MRA for 350 patients with vertebrarteri- al lesions and 50 healthy adults. Results： The diameters of each section in three equal parts of vertebral artery were measured and the normal values of its diameter （left side：4.1 ±0.79mm;riht side： 3.2±0.83mm） were obtained. Among 350 patients 26 cases of vertebrarterial twist,320 cases of vertebral artery stenosis（ including 85 cases of mild stenosis, 147 cases of medium ones and 88 cases of severe ones） and 4 cases of vertebral artery occlusion were diagnosed confirmatively. Conclusion： This method plays an important role in the diagnosis, typing, selecting therapeutic method and judging the prognosis of vertebrarterial lesions.