An Experimental Intervention Study Assessing the Impact of a Thin Silicone Gel Surface Overlay on Interface Pressure

Table 3

Exposure and deviation indices for the surface overlays at high and low kVs.

	High kV (120, 1.2 mAs)	Low kV (60, 1.2 mAs)
Control	EI–2940.10	EI224.47
	TI–250	TI–250
	DI–10.70	DI–−0.46
Gel table/hip pad	EI–2705.38	EI–195.26
	TI 250	TI–250
	DI–10.34	DI–−1.07
Silicone gel flat pad	EI–2926.91	EI–213.16
	TI–250	TI–250
	DI–10.68	DI–−0.69
Blue hollow surface	EI–2842.58	EI–207.48
	TI–250	TI–250
	DI–10.55	DI–−0.80
Sundance SUN Z3-S	EI–2773.14	EI–197.91
	TI–250	TI–250
	DI–10.45	DI–−1.01
Small round gel	EI–3020.51	EI–222.46
	TI–250	TI–250
	DI–10.82	DI–−0.50

EI, TI, and DI all in units of microgray (μGy).