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

Table 5

The mean Hounsfield unit (HU) with standard deviation (SD) for the various surface overlays.

Surface no	Surface overlay	Mean HU ± SD
1	Gel table/hip pad	−0.67 ± 22.93
2	Silicone gel flat pad	−12.54 ± 26.80
3	Blue hollow surface	−508.96 ± 37.93
4	Sundance SUN Z3-S	−0.7 ± 15.3
5	Small round gel	−18.17 ± 7.06