Carriero A, Magarelli N, Baratto M, Aloia N, Pinto D, Scapati C, Bonomo L
Istituto di Scienze Radiologiche e Formazione dell'Immagine, Università G. D'Annunzio, Chieti.
Radiol Med. 1996 Jun;91(6):743-6.
This work was aimed at studying the origin of the epiaortic vessels with Magnetic Resonance Angiography (MRA). Twenty normal volunteers (mean age: 21.5 years) were examined with MRA with a superconductive magnet at 1 T (Impact). All volunteers were examined with a body coil and the time of flight (TOF) technique. The FISP 3D TONE sequence was used, with the following parameters: TR 46 ms, TE 10 ms, FA 20 degrees, ST 2.2 mm, matrix 192 x 256. The images, acquired on the axial plane with three presaturation pulses, were rotated according to the maximum intensity projection on the Z axis. To classify the images, a multiple choice card was used by a reader, with three diagnostic judgements for the different segments of the vessels (i.e., good, poor and not visualized). 3D TOF MRA permitted good visualization of the right and left common carotid in 80% and 77% of cases, of the right and left vertebral arteries in 55% and 50% of cases, of the left and right subclavian arteries in 47% and 62% of cases, and of the anonymous artery in 100% of cases. To conclude, our preliminary results indicate FISP 3D TOF MRA as the best noninvasive technique to study the origin of the epiaortic vessels.
这项研究旨在利用磁共振血管造影（MRA）研究主动脉上血管的起源。20名正常志愿者（平均年龄：21.5岁）接受了1T超导磁体（Impact）的MRA检查。所有志愿者均使用体线圈和飞行时间（TOF）技术进行检查。使用了FISP 3D TONE序列，其参数如下：TR 46毫秒，TE 10毫秒，FA 20度，层厚2.2毫米，矩阵192×256。在轴位平面上采集的带有三个预饱和脉冲的图像，根据Z轴上的最大强度投影进行旋转。为了对图像进行分类，一名阅片者使用了一张多项选择卡片，对血管的不同节段有三种诊断判断（即良好、不佳和未显影）。3D TOF MRA在80%和77%的病例中能很好地显示左右颈总动脉，在55%和50%的病例中能很好地显示左右椎动脉，在47%和62%的病例中能很好地显示左右锁骨下动脉，在100%的病例中能很好地显示无名动脉。总之，我们的初步结果表明FISP 3D TOF MRA是研究主动脉上血管起源的最佳无创技术。
