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Table 1: Procedure type, location, and contrast amounts
Procedure Patients Procedures Gadolinium Amounts (cc/level)
Diskogram (total) 11 35 
    Lumbar 10 32 1.5–7.5
    Thoracic 1 3 1.5–1.8
Epidural injection 
    \m(interlaminar) (total) 53 53 
    Cervical 16 16 2.0–5.0
    Thoracic 1 1 1.0–1.0
    Lumbar 36 36 1.0–5.0
Epidural Injection 
    (transforaminal) (total) 7 7 
    Lumbar 7 7 1.0–3.0
Facet injection (total) 6 13 
    Cervical 1 2 0.2–0.2
    Lumbar 5 11 0.2–0.5
Intercostal injection (total) 1 3 
1 3 0.5–0.5
Nerve block (total) 14 16 
    Cervical 5 5 0.2–0.5
    Lumbar 9 11 0.2–5.0
Grand total 92 127

Procedure	Patients	Procedures	Gadolinium Amounts (cc/level)
Diskogram (total)	11	35
Lumbar	10	32	1.5–7.5
Thoracic	1	3	1.5–1.8
Epidural injection
\m(interlaminar) (total)	53	53
Cervical	16	16	2.0–5.0
Thoracic	1	1	1.0–1.0
Lumbar	36	36	1.0–5.0
Epidural Injection
(transforaminal) (total)	7	7
Lumbar	7	7	1.0–3.0
Facet injection (total)	6	13
Cervical	1	2	0.2–0.2
Lumbar	5	11	0.2–0.5
Intercostal injection (total)	1	3
	1	3	0.5–0.5
Nerve block (total)	14	16
Cervical	5	5	0.2–0.5
Lumbar	9	11	0.2–5.0
Grand total	92	127