Gadolinium-enhanced magnetic resonance angiography of abdominal aortic aneurysms.
Gadolinium-enhanced magnetic resonance angiography of abdominal aortic aneurysms.
复制标题
腹主动脉瘤钆增强磁共振血管造影。
DOI：
10.1016/s0741-5214(95)70197-4
复制
发表时间：
1995
影响因子：
4.3
通讯作者：
Cho,KJ
中科院分区：
文献类型：
--
作者：
Prince,MR;Narasimham,DL;Stanley,JC;Wakefield,TW;Messina,LM;Zelenock,GB;Jacoby,WT;Marx,MV;Williams,DM;Cho,KJ
目的：本研究的目的是评估钆增强磁共振血管造影（MRA）在确定动脉瘤性疾病主动脉手术相关解剖特征方面的有用性。方法对43例患者进行血管造影、超声、计算机断层扫描或手术资料的相关分析，包括腹主动脉瘤（AAA）的大小和特征，以及腹腔、肠系膜、肾、髂动脉的状态。在一个小时的检查中获得了5个MRA序列，优化了在体圈中1.5 T的主动脉髂、内脏和肾动脉成像。四个序列在注射钆期间或之后进行，以提高图像质量。结果smra准确地确定了所有患者的最大动脉瘤直径及其近端和远端范围。在153个被检查的内脏、肾脏或髂分支中，MRA检测到35个显著狭窄中的33个（敏感性= 94%，特异性= 98%）。MRA不能充分解决主动脉分支狭窄疾病的程度，不能精确分级其严重程度。MRA不能可靠地确定肠系膜下动脉、腰椎动脉或髂内动脉的状态。MRA正确诊断AAA破裂1例，炎性AAA 1例。没有患者出现与钆相关的造影剂反应或造影剂引起的肾毒性。结论：在1小时的检查中，AAA的钆增强MRA为主动脉重建手术提供了适当的、必要的解剖信息，没有造影剂相关的肾毒性或常规动脉造影相关的导管相关并发症。（中华外科杂志1995；21:656-69。）
PurposeThe objective of this study was to assess the usefulness of gadolinum-enhanced magnetic resonance angiography (MRA) for defining anatomic features relevant to performing aortic surgery for aneurysmal disease.MethodsAnatomic data defined by MRA, including abdominal aortic aneurysm (AAA) size and character, as well as the status of the celiac, mesenteric, renal, and iliac arteries, were correlated with angiography, ultrasonography, computed tomography, or operative data in 43 patients. Five MRA sequences were obtained in an hour-long examination optimized for aortoiliac, splanchnic, and renal artery imaging at 1.5 T in a body coil. Four of the sequences were performed during or after infusion of gadolinium to improve image quality.ResultsMRA correctly defined the maximum aneurysm diameter, as well as its proximal and distal extent in all patients. MRA detected 33 of 35 significant stenoses among 153 splanchnic, renal, or iliac branches examined (sensitivity = 94% and specificity = 98%). MRA did not resolve the degree of aortic branch stenotic disease sufficiently to precisely grade its severity. MRA did not reliably define the status of the inferior mesenteric artery, lumbar arteries or internal iliac arteries. One ruptured AAA and one inflammatory AAA were correctly diagnosed by MRA. No patient had a contrast reaction or contrast-induced renal toxicity related to administration of gadolinium.ConclusionGadolinium-enhanced MRA of AAA provides appropriate, essential anatomic information for aortic reconstructive surgery in a 1-hour examination devoid of contrast-related renal toxicity or catheterization-related complications attending conventional arteriography. (J VASC SURG 1995;21:656-69.)