Table 5.

The mean of the shortest distance between aorta (or common iliac artery; with division between left and right common iliac artery) and intervertebral disc (or upper or lower margin of vertebrae) at the particular level of spine

	Aorta–disc (Vertebrae) distance; [mean (mm) ± SD]			Left common iliac artery- disc (Vertebrae) distance; [mean (mm) ± SD]			Right common iliac artery-disc (Vertebrae) distance; [mean (mm) ± SD]
	All group	Male group	Female group	All group	Male group	Female group	All group	Male group	Female group
TH12/L1	0.90 ± 1.56	0.90 ± 1.50	0.91 ± 1.54	–	–	–	–	–	–
L1 U	2.53 ± 2.04	2.42 ± 2.15	2.72 ± 2.00	–	–	–	–	–	–
L1 L	3.20 ± 2.22	3.33 ± 2.15	2.98 ± 2.05	–	–	–	–	–	–
L1/L2	1.16 ± 1.83	1.32 ± 1.97	0.96 ± 1.78	–	–	–	–	–	–
L2 U	3.07 ± 2	3.09 ± 2.05	3.05 ± 1.92	–	–	–	–	–	–
L2 L	3.76 ± 2.29	4.05 ± 2.54	3.4 ± 1.89	–	–	–	–	–	–
L2/L3	1.6 ± 1.95	1.97 ± 2.16	1.15 ± 2.01	–	–	–	–	–	–
L3 U	3.66 ± 2.77	3.84 ± 2.34	3.32 ± 2.56	–	–	–	–	–	–
L3 L	4.65 ± 2.77	4.92 ± 2.86	4.26 ± 2.4	–	–	–	–	–	–
L3/L4	2.12 ± 2.57	2.54 ± 2.78	1.71 ± 2.61	1.7 ± 1.44	2.56 ± 1.52	1.33 ± 1.23	3.74 ± 2.3	6.16 ± 1.46	2.7 ± 1.74
L4 U	3.5 ± 2.79	3.7 ± 2.96	3.24 ± 2.53	3.17 ± 1.9	3.39 ± 1.98	3.01 ± 1.82	5.98 ± 3.2	7.18 ± 3.01	5.1 ± 3.04
L4 L	4.5 ± 3.66	5.01 ± 4.18	3.91 ± 2.84	5.08 ± 4.57	5.61 ± 5.41	4.43 ± 3.11	8.81 ± 4.93	9.69 ± 5.25	7.74 ± 4.26
L4/L5	2.37 ± 2.89	2.69 ± 3.03	2 ± 2.7	3.17 ± 3.42	3.64 ± 3.63	2.6 ± 3.06	6.97 ± 4.96	7.96 ± 5.06	5.8 ± 4.57
L5 U	3.85 ± 2.76	4.66 ± 2.92	2.22 ± 1.37	6.03 ± 5	6.43 ± 5.6	5.57 ± 4.14	9.37 ± 5.43	9.84 ± 5.41	8.81 ± 5.4
L5 L	–	–	–	10.50 ± 5.01	10.85 ± 4.97	10.08 ± 5.02	10.65 ± 6.28	11.04 ± 5.93	10.18 ± 6.65

U upper margin of disc, L lower margin of disc