Al-Hussain Fawaz, Aljafen Bandar, Alhazzani Adel, Mohammad Yousef
Department of Internal Medicine, Faculty of Neurology, College of Medicine, King Saud University, Riyadh, Saudi Arabia.
J Coll Physicians Surg Pak. 2021 Mar;31(3):314-317. doi: 10.29271/jcpsp.2021.03.314.
This study was carried out to determine the risk of new ischemic events, demonstrated by diffusion weighted magnetic resonance imaging (DW-MRI) in patients undergoing diagnostic conventional cerebral angiogram. MEDLINE, EMBASE, Current Contents, Cochrane Central, Expert Files, and bibliographies of included articles were systematically searched to identify prospective studies that reported MRI findings after diagnostic angiogram. Eligibility criteria included the following elements: manuscripts published between 1999 and 2019; prospective design; only diagnostic angiogram imaging performed prior to the MRI; DW-MRI done before and after the angiogram procedure; and number of new diffusion weighted lesions documented after each procedure. Six studies met the eligibility criteria. The total number of diagnostic angiograms reported was 430. DWI lesions were associated with diagnostic angiograms in 106 (24.65%) of total procedures. Mean time fluoroscopy, procedure by resident operator, and vascular risk factors were the recognised independent risk factors for silent cerebral ischemia after diagnostic angiogram. Key Words: Stroke, Diffusion magnetic resonance imaging, Cerebral infarction, Angiography, Brain ischemia.
本研究旨在确定接受诊断性常规脑血管造影的患者中，通过弥散加权磁共振成像（DW-MRI）显示的新发缺血性事件的风险。系统检索MEDLINE、EMBASE、《现刊目次》、Cochrane中心、专家档案以及纳入文章的参考文献，以识别报告诊断性血管造影后MRI结果的前瞻性研究。纳入标准包括以下要素：1999年至2019年发表的手稿；前瞻性设计；仅在MRI之前进行诊断性血管造影成像；在血管造影术前和术后进行DW-MRI；以及记录每次手术后新的弥散加权病变数量。六项研究符合纳入标准。报告的诊断性血管造影总数为430例。在所有手术中，106例（24.65%）的DWI病变与诊断性血管造影相关。平均透视时间、住院医师操作的手术以及血管危险因素是诊断性血管造影后无症状性脑缺血公认的独立危险因素。关键词：中风、弥散磁共振成像、脑梗死、血管造影、脑缺血
