Fletcher B D, Jacobstein M D
AJR Am J Roentgenol. 1986 May;146(5):941-8. doi: 10.2214/ajr.146.5.941.
ECG-gated MRI was performed at 0.3 T or 1.0 T in 19 patients, aged 6 years to 18 years, for suspected congenital abnormalities of the aorta (13 patients) or pulmonary artery (six patients). Seventeen of the patients were also evaluated by echocardiography, and 14 had angiograms. In 11 patients, MRI demonstrated lesions that echocardiography either failed to visualize or found inconclusive, including supravalvar aortic stenosis (one patient), coarctation of the aorta (three patients) hypoplastic aortic arch (one patient), and pulmonary artery hypoplasia or stenosis (six patients). MRI complemented echocardiographic diagnosis in four patients with Marfan's syndrome and in one with coarctation. One mild recurrent coarctation demonstrated angiographically was not visualized by MRI or echocardiography. The eight other angiographic studies of the aorta confirmed MRI findings. In all six MRI studies of the pulmonary arteries, obstructive lesions were revealed that had not been completely visualized on echocardiography or angiography. MRI is an excellent noninvasive method of depicting congenital abnormalities of the great arteries and may provide otherwise unobtainable information.
对19例年龄在6岁至18岁之间、怀疑有主动脉（13例）或肺动脉（6例）先天性异常的患者进行了0.3T或1.0T的心电图门控磁共振成像（ECG - gated MRI）检查。其中17例患者还接受了超声心动图检查，14例进行了血管造影。在11例患者中，MRI显示出超声心动图未能发现或结果不明确的病变，包括主动脉瓣上狭窄（1例）、主动脉缩窄（3例）、主动脉弓发育不全（1例）以及肺动脉发育不全或狭窄（6例）。MRI对4例马方综合征患者和1例主动脉缩窄患者的超声心动图诊断起到了补充作用。血管造影显示的1例轻度复发性主动脉缩窄，MRI和超声心动图均未发现。另外8例主动脉血管造影研究证实了MRI的结果。在所有6例肺动脉MRI检查中，均发现了超声心动图或血管造影未完全显示的阻塞性病变。MRI是一种描绘大动脉先天性异常的优秀无创方法，可能提供其他方式无法获得的信息。
