Bank E R, Aisen A M, Rocchini A P, Hernandez R J
Radiology. 1987 Jan;162(1 Pt 1):235-40. doi: 10.1148/radiology.162.1.2947263.
Twelve children (aged 4-15 years) with suspected coarctation of the aorta or restenosis of the aorta after previous coarctation repair were considered for balloon angioplasty. Gated magnetic resonance (MR) imaging and cineangiography of the aorta were performed before angioplasty in all 12 children. In six of the nine children treated with angioplasty, MR imaging was performed between 1 day and 4 months later. Correlation with cineangiography showed that MR imaging accurately delineated the site and characteristics of the coarctation before balloon angioplasty. After balloon dilation, MR demonstrated a significant increase in the diameter of the aorta at the coarctation site in four patients and no change in two patients. No complications such as aneurysm formation, dissection, or hematoma were detected as a result of balloon angioplasty in the follow-up MR studies. A decrease in the number and size of collateral vessels was identified in successfully treated patients. MR was useful in identifying patients who were unlikely to benefit from angioplasty, determining the appropriate balloon size for angioplasty, and noninvasively monitoring patients who underwent angioplasty.
12名疑似患有主动脉缩窄或曾接受主动脉缩窄修复术后出现再狭窄的儿童（年龄4至15岁）被纳入球囊血管成形术治疗范围。所有12名儿童在血管成形术前均接受了门控磁共振（MR）成像和主动脉电影血管造影检查。在接受血管成形术治疗的9名儿童中，有6名在术后1天至4个月内进行了MR成像检查。与电影血管造影的相关性显示，MR成像能够准确描绘球囊血管成形术前主动脉缩窄的部位和特征。球囊扩张后，MR显示4例患者主动脉缩窄部位的直径显著增加，2例患者无变化。在随访的MR研究中，未检测到球囊血管成形术导致的诸如动脉瘤形成、夹层或血肿等并发症。成功治疗的患者侧支血管数量和大小减少。MR有助于识别不太可能从血管成形术中获益的患者，确定血管成形术合适的球囊大小，并对接受血管成形术的患者进行无创监测。
