磁共振成像在主动脉疾病中的应用(附29例分析)

目的：评价ＭＲＩＳＥ序列，梯度回波（ＧＲＥ）及磁共振血管成像（ＭＲＡ）对主动脉疾病的诊断价值。材料和方法：２９例主动脉疾患，其中主动脉夹层２１例，胸、腹主动脉瘤８例。全部病例采用ＭＲＩＳＥ常规序列及ＧＲＥ技术，４例行ＭＲＡ检查。结果：在ＳＥ及ＧＲＥ序列上２１例胸、腹主动脉夹层均显示真假两腔，其内膜片分别为１９和２１例。破口分别为５和８例。ＭＲＩ及ＭＲＡ能清晰地显示主动脉瘤和瘤体内结构。结论：ＭＲＩ对主动脉疾患具有肯定的诊断价值。以常规ＳＥ序列为基础，辅以ＧＲＥ及ＭＲＡ技术将能对主动脉疾病提供更多的诊断信息。

Application of Magnetic Resonance Imaging in Aortic Diseases (an analysis of 29 cases)

Purpose: To evaluate the value of spin echo (SE), Gradient echo (GRE) and MRA in diagnosis aortic diseases. Materials and Methods: Twenty nine patients with aortic diseases including 21 cases aortic dissection and 8 cases thoracic as well as abdominal aneurysm were examinated with MRI SE and GRE, 4 cases of them underwent MRA. Results: thoracic and abdominal aortic dissections of 21 cases showed aortic double lumen in both of SE and GRE, 19 cases in SE and 21 cases in GRE showed intinal flap. Entry tears were 5 and 8 cases respectively. Aortic aneurysm and intraaneurysmal architecture can be clearly showed on MRI and MRA. Conclution: MRI has reliable value in the diagnosis of aortic diseases. Conventional SE associated with GRE and MRA will provide more informations for diagnosis of aortic diseases.