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

Table 4

Radiographic images of the five surfaces at high and low kVs.

Surface overlay	High kV	Low kV	High kV with hand	Low kV with hand	Artefact present
Gel table pad					Yes
Silicone gel flat pad					No
Blue hollow gel overlay					Yes
Sundance SUN Z3-S					Yes
Small round gel					Yes