Flow volume asymmetry in the right aortic arch in children with magnetic resonance phase encoded velocity mapping
Flow volume asymmetry in the right aortic arch in children with magnetic resonance phase encoded velocity mapping
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DOI：
10.1067/mhj.2003.28
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发表时间：
2003-01-01
影响因子：
4.8
通讯作者：
Haselgrove, J
中科院分区：
文献类型：
--
作者：
Fogel, MA;Weinberg, PM;Haselgrove, J
背景 右主动脉弓在儿科中并不罕见。这种类型的主动脉弓的血流动力学对于心脏能量学、器官灌注和多普勒血流计算很重要，但尚未定义。尽管存在复杂的二次血流模式，但大量轴流占据了大部分能量使用。 方法 我们通过在升主动脉和降主动脉中使用平面相位编码磁共振速度图检查了 14 名患有右主动脉弓的儿童，以确定流量对称性和速度。主动脉横截面分为沿主动脉长轴排列的 4 个象限。显着性定义为 P 值
Background The right aortic arch is not uncommon in pediatrics. Flow dynamics in this type of aortic arch, which is important for cardiac energetics, organ perfusion, and Doppler flow calculations, have not been defined. Although there are complex secondary flow patterns, bulk axial flow makes up most of the energy use.Methods We examined 14 children with a right aortic arch by using through-plane phase-encoded magnetic resonance velocity mapping in the ascending and descending aorta to determine flow volume symmetry and velocity. The aortic cross section was divided into 4 quadrants aligned along the long axis of the aorta. Significance was defined as a P value