Table 1

	Age (y)	BMI (kg/m²)	Minimal distance of the contrast agent to the skin (mm)	Craniocaudal spread in relation to the spine	Craniocaudal spread (mm)	Volume (mm³)	Maximal contrast spread in the sagittal plane (mm)	Maximal contrast spread in the coronal plane (mm)
Patient 1 / m	79	25	1	middle of CVB3 - lower edge of TVB3	102	70236	77	33
Patient 2 / m	70	22	1	middle of CVB2 - upper edge of TVB3	148	82560	79	25
Patient 3 / m	77	29	2	upper edge of CVB2 - lower edge of TVB1	101	73038	54	33
Patient 4 / m	73	29	0	lower edge of CVB3 - lower edge of TVB3	124	86759	84	36
Patient 5 / m	73	29	1	lower edge of CVB2 - middle of TVB2	133	79701	74	36
Patient 6 / m	76	24	3	upper edge of CVB4 - lower edge of TVB3	135	66009	94	50
Patient 7 / f	72	30	0	middle of CVB2 - lower edge of TVB2	128	70518	89	74
Patient 8 / m	83	21	2	middle of CVB2 - middle of TVB4	169	74025	86	56
Patient 9 / f	74	21	0	lower edge of CVB3 - middle of TVB2	86	77219	102	35
Patient 10 / m	78	26	0	lower edge of CVB1 - lower edge of TVB3	157	72248	79	44
Patient 11 / m	74	29	2	upper edge of CVB1 - upper edge of TVB1	138	75045	68	37
Patient 12 / m	67	31	0	middle of CVB2 - middle of TVB1	108	74438	72	41
Patient 13 / f	61	18	0	lower edge of CVB1 - lower edge of TVB2	123	79202	70	40
Patient 14 / m	78	29	0	lower edge of CVB3 - upper edge of TVB1	103	72969	103	57
mean (SD)	74 (5)	26 (4)	0.9 (1.0)		125 (24)	75260 (5407)	81 (13)	43 (13)

BMI = body mass index; CVB = cervical vertebral body; f = female; m = male; TVB = thoracic vertebral body

Table 1: Demographic data of the 14 patients with radiological contrast agent spread.