Table 2 CT findings of 332 adult malrotation patients

CT classification

Duodenal partial rotation

 D_YJ_RC_R

225 (67.8)

 D_YJ_RC_L

12 (3.6)

 D_YJ_RC_M

4 (1.2)

 D_YJ_RC_P

2 (0.6)

Duodenal nonrotation

 D_NJ_RC_R

63 (19.0)

 D_NJ_RC_L

15 (4.5)

 D_NJ_RC_P

5 (1.5)

Duodenal rotation

 D_YJ_MC_R

1 (0.3)

 D_YJ_LC_R

3 (0.9)

 D_YJ_LC_L

2 (0.6)

Position of SMA relative to SMV

 Left rear

165 (49.7)

 Left

73 (22.0)

 Left front

66 (19.9)

 Right rear

28 (8.4)

Whirlpool sign

11(3.3)