Kawabata H, Matsui Y, Kitano M
Department of Orthopaedic Surgery, Osaka Medical Centre and Research Institute for Maternal and Child Health, Japan.
Hand Surg. 2001 Dec;6(2):157-62. doi: 10.1142/s021881040100062x.
A two-dimensional time-of-flight magnetic resonance angiography was performed in 29 arms in 25 pediatric patients with congenital hand abnormalities, whose average age was three years and eight months. Venous structures were eliminated with presaturation technique and the remaining arterial system was evaluated. Magnetic resonance angiography demonstrated major arteries in the forearm well but not their branches. Even the biggest branch of the artery sometimes could not be detected. Magnetic resonance angiography and Allen test were consistent in determining patency of the palmar arch in 62% of the cases but the sensitivity was only 28%. Our experience showed that non-invasive, convenient, two-dimensional time-of-flight magnetic resonance angiography was useful for detecting continuity and spatial localisation of the major arteries in a child's forearm. However, it was not a complete alternative to conventional angiography and was unsatisfactory in delineating the vascular anatomy in the hand.
对25例患有先天性手部异常的儿科患者的29只手臂进行了二维飞行时间磁共振血管造影，这些患者的平均年龄为3岁8个月。采用预饱和技术消除静脉结构，对剩余的动脉系统进行评估。磁共振血管造影能很好地显示前臂的主要动脉，但无法显示其分支。即使是最大的动脉分支有时也无法检测到。磁共振血管造影和艾伦试验在确定掌弓通畅性方面的一致性为62%，但敏感性仅为28%。我们的经验表明，无创、便捷的二维飞行时间磁共振血管造影对于检测儿童前臂主要动脉的连续性和空间定位很有用。然而，它并不能完全替代传统血管造影，在描绘手部血管解剖结构方面也不尽人意。
