CT血管造影在脑血管病诊治中的临床应用

Clinical application of computed tomographic angiography(CTA)for diagnosis and treatment of cerebrovascular diseases

目的 评估 CT血管造影 (CTA)在脑血管病诊断中的价值。方法 对 5 0例脑血管病患者进行了CTA检查 ,其中颅内动脉瘤 2 4例、脑血管畸形 14例、脑缺血性疾病 3例、自发性颅内出血 9例。除 4例外其余患者均行数字减影血管造影 (DSA)检查 ,并与 CTA结果对照。结果 45例 CTA的结果与 DSA相同。 1例多发性动脉瘤 ,CTA漏检 1个动脉瘤。 4例未行 DSA的患者 ,其 CTA结果被手术或临床症状证实。CTA在描绘脑血管三维结构以及毗邻骨结构上优于 DSA。结论 CTA是脑血管病诊断的一种简单、快速、非侵袭和可靠的方法。它特别有助于术前手术方案的制定。

Objective To assess the value of CTA in the diagnosis and treatment of cerebrovascular diseases. Method Fifty patients with cerebrovascular diseases were examined by CTA,including 24 cases of intracranial aneurysms,14 cases of cerebrovascular malformations,3 cases of cerebral ischemic diseases and 9 cases of spontaneous intracranial hemorrhage. All except 4 cases also underwent digital subtraction angiography (DSA). Result In forty five cases,the results of CTA were confirmed by DSA. In a patient with multiple aneurysms,CTA detected one aneurysm but missed another one. In 4 cases not examined by DSA,the results of CTA were confirmed by operations. CTA is superior to DSA for depicting the three dimensional anotomy of cerebral vasculature and adjacent bone structure. Conclusion CTA is a simple,rapid,noninvasive and reliable method for diagnosis of cerebrovascular diseases. It is especially useful in the preoperative planning,intraoperative orientation and long term follow up.