Table 7.

Radiation protocol for the spine and SI joint

C-arm settings	3-D navigated	Conventional
Spine
Duration	72 seconds	105 seconds
Position of C-arm	1 × 3-D scan (60 seconds, high quality), 6 seconds AP, 6 seconds lateral	79 seconds AP 26 seconds lateral
Sacroiliac joint
Duration	87 seconds	120 seconds
Position of C-arm	1 × 3-D scan (60 seconds, high quality), 14 seconds AP, 7 seconds lateral, 3 seconds inlet, 3 seconds outlet	60 seconds AP, 30 seconds lateral, 15 seconds inlet, 15 seconds outlet

SI = sacroiliac.