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目的研究探讨核磁共振(MR)在脑血管疾病诊断中的临床应用价值。方法 80例脑血管疾病患者,按照脑血管疾病类别不同分为脑梗死组(37例)、短暂性脑缺血组(30例)以及蛛网膜下腔出血组(13例)。均对其进行常规序列平扫、磁共振脑血管成像技术(MRA)等一系列的检查,观察患者的检查结果 ,以数字减影血管造影法(DSA)检测结果为依据,计算其检测阳性率。结果经MRA检查脑梗死、短暂性脑缺血、蛛网膜下腔出血的阳性检出率分别为85.1%、81.7%和69.2%;经DSA检查的结果分别为91.9%、89.2%和76.9%。不同方法诊断三种脑血管疾病的检出率比较差异无统计学意义(P>0.05)。结论经MR扫描诊断脑血管疾病,具有高分辨率、高对比度和良好的信号强度,可以对病灶的位置、范围、大小以及颅内动脉病变的情况进行清晰显示,为诊断提供依据。
Objective To study the clinical value of nuclear magnetic resonance (MR) in the diagnosis of cerebrovascular diseases. Methods Eighty patients with cerebrovascular disease were divided into cerebral infarction group (37 cases), transient ischemic group (30 cases) and subarachnoid hemorrhage group (13 cases) according to the types of cerebrovascular diseases. All patients underwent routine serial scan and magnetic resonance imaging (MRA). A series of examinations were performed to observe the results of the patients. Based on the digital subtraction angiography (DSA) test results, the positive rate . Results The positive rates of cerebral infarction, transient cerebral ischemia and subarachnoid hemorrhage by MRA were 85.1%, 81.7% and 69.2% respectively. The results of DSA were 91.9%, 89.2% and 76.9% respectively. There was no significant difference in the detection rate of the three kinds of cerebrovascular diseases by different methods (P> 0.05). Conclusions The diagnosis of cerebrovascular disease by MR scanning has the advantages of high resolution, high contrast and good signal intensity. It can clearly show the location, range, size and intracranial arterial lesions.