Cine magnetic resonance imaging study of blood flow and wall motion of the aortic arch.
Cine magnetic resonance imaging study of blood flow and wall motion of the aortic arch.
复制标题
主动脉弓血流和壁运动的电影磁共振成像研究。
DOI：
10.1253/jcj.60.533
复制
发表时间：
1996
期刊：
影响因子：
--
通讯作者：
Y. Tada
中科院分区：
文献类型：
--
作者：
S. Yoshii;N. Mohri;K. Kamiya;Y. Tada
主动脉弓在轴位视图中横弓有3D扭曲，我们以前报道过这种扭曲是主动脉弓动脉瘤发病的一个危险因素。在本研究中，我们对10名健康青年志愿者在横弓轴向平面、升弓冠状面和沿着整个主动脉弓的长轴向平面进行了ECG门控电影磁共振成像，以评价主动脉弓的血流和运动。在收缩期，所有男性（6.3 +/-1.59 mm）和女性（4.8 +/-0.73 mm）均观察到横弓中点周围的左前外侧运动。2.在收缩期沿主动脉壁右侧沿着检测到射流。在前视图中，在平面的顶部，该射流以顺时针旋转的方式转向左侧。3.在长轴平面上，7例中6例在左锁骨下动脉口远端观察到收缩期湍流。总之，这种湍流和左前外侧壁运动的横弓是由于解剖学的三维扭曲的横弓。我们认为，这些现象可能是重要的危险因素的发病机制弓动脉瘤。
The aortic arch has 3D distortions in the transverse arch in the axial view, and we previously reported that this distortion is a risk factor in the pathogenesis of arch aneurysms. In this study, we evaluated blood flow and movement of the aortic arch. In 10 healthy young volunteers, ECG-gated cine magnetic resonance imaging was carried out in the axial plane of the transverse arch, the coronal plane of the ascending arch, and the long axial plane along the entire arch. 1. Left anterolateral movements around the midpoint of the transverse arch in the systolic phase were observed in all of the men (6.3 +/- 1.59 mm) and women (4.8 +/- 0.73 mm). 2. A jet flow was detected in the systolic phase along the right side of the aortic wall. At the top of the plane, this jet flow turned to the left in a clockwise rotation in the anterior view. 3. In the long axial plane, a turbulent flow in the systolic phase was observed distal to the left subclavian arterial orifice in 6 of the 7 cases. In conclusion, this turbulent flow and left anterolateral wall motion of the transverse arch are due to anatomical three-dimensional distortion of the transverse arch. We propose that these phenomena may be important risk factors in the pathogenesis of arch aneurysms.