Parks W J, Ngo T D, Plauth W H, Bank E R, Sheppard S K, Pettigrew R I, Williams W H
Children's Heart Center at Emory University, Atlanta, Georgia 30322, USA.
J Am Coll Cardiol. 1995 Jul;26(1):266-71. doi: 10.1016/0735-1097(95)00127-l.
Magnetic resonance angiography with three-dimensional surface rendering was performed to determine its value in assessing anatomic detail in patients with suspected aortic aneurysms.
Dacron patch aortoplasty repair of coarctation of the aorta carries an inherent risk of aneurysm development. Sudden death from aortic rupture prompted discontinuing this operation and evaluating 39 patients (16 girls; mean age 6.3 years, range 10 days to 14.5 years) undergoing repair between January 1976 and October 1987. The aorta ruptured in 10 patients; 6 died at a mean interval of 8.1 years (range 0.75 to 12.4) after repair. All 33 survivors were interviewed and examined.
Conventional magnetic resonance imaging was performed in 26 patients, magnetic resonance angiography in 18. Angiographic slices were used to reconstruct three-dimensional images. No catheterization or contrast angiography was performed. Surgical intervention was based on clinical findings and magnetic resonance images.
Twenty patients (11 girls) developed aneurysms, of which nine were detected in patients studied by magnetic resonance. Ruptures occurred in eight female patients, three of whom were pregnant. Surface renderings accurately defined aortic anatomy or aneurysms in all patients. On follow-up, no aneurysms have been detected in patients with negative magnetic resonance study results. Precise anatomic correlation with operative findings was reported.
Magnetic resonance angiography with three-dimensional surface rendering provides noninvasive, radiation-free and contrast agent-free high resolution images of the thoracic aorta. These images can be reviewed and have three-dimensional form and perspective. These techniques were preferred over invasive angiography by surgeons and clinicians as definitive, risk-free procedures before surgical intervention.
进行磁共振血管造影三维表面重建，以确定其在评估疑似主动脉瘤患者解剖细节方面的价值。
涤纶补片主动脉缩窄成形术存在动脉瘤形成的固有风险。主动脉破裂导致的猝死促使停止该手术，并对1976年1月至1987年10月期间接受修复手术的39例患者（16名女孩；平均年龄6.3岁，范围10天至14.5岁）进行评估。10例患者主动脉破裂；6例在修复后平均8.1年（范围0.75至12.4年）死亡。对所有33名幸存者进行了访谈和检查。
26例患者进行了常规磁共振成像，18例进行了磁共振血管造影。利用血管造影切片重建三维图像。未进行导管插入术或造影血管造影。手术干预基于临床发现和磁共振图像。
20例患者（11名女孩）发生动脉瘤，其中9例在接受磁共振检查的患者中被检测到。8名女性患者发生破裂，其中3名是孕妇。表面重建准确地定义了所有患者的主动脉解剖结构或动脉瘤。随访发现磁共振检查结果为阴性的患者未检测到动脉瘤。报告了与手术结果的精确解剖相关性。
磁共振血管造影三维表面重建提供了无创、无辐射且无需造影剂的胸主动脉高分辨率图像。这些图像可以进行回顾，具有三维形式和视角。在手术干预前，这些技术被外科医生和临床医生视为明确、无风险的程序，优于侵入性血管造影。
