Measuring Surface Area of Skin Lesions with 2D and 3D Algorithms

Table 1

Results for ruler-based measurements. Values for absolute and relative error are given as mean standard deviation. Exclusion is due to converging the grid pattern in the phantom area or phantom area being outside of the grid.

Type of image	Absolute error	Relative error	Min Area	Max Area
		%
Flat (N=41)	0.490.47	4.483.90	1.13	28.09
Low Curvature (N=40, 3 excl.)	1.391.28	14.029.91	1.13	27.84
High Curvature (N=36, 5 excl.)	1.191.49	12.0010.42	1.47	27.84
All (N=109)	0.991.18	9.869.31	1.13	28.09