桡动脉分叉高 high-bifurcating RA origin (5-8%)
桡动脉迂曲 RA tortuosity (2-6%)
桡动脉成袢 radial loop (1-2%)
吻合弓形成 anastomotic arcade
发育异常 hypoplasia
动脉硬化 atherosclerosis
狭窄 stenosis
分叉型桡动脉 bifurcating RA
老年人右锁骨下动脉迂曲 tortuous right subclavian artery in elderly (up to 10%)
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