Author Patient population Radial artery loop Tortusous radial artery n (%) High radial take-off Radial or ulnar stenosis
Toshiharu Fujii [8] 163 2 (1.2) 25 (15.3) 8 (4.9) 4 (2.5)
Lo TS [9] 1540 35 (2.3) 30 (2) 35 (2.3) 39 (2.5)
Nie Bin [10] 3000 33 (1.1) 150 (5) 231 (7.7) 43 (1.4)
Yoo BS [11] 1191 16 (1.3) 67 (4.2) 38 (3.2) no data
N. Yokoyama [12] 115 1 (0.9) 6 (5.2) 0 2 (1.7)
Table 1: Anatomic variations of the radial artery.