Automated Delineation of Vessel Wall and Thrombus Boundaries of Abdominal Aortic Aneurysms Using Multispectral MR Images

Table 2

Dice coefficient (DC) and modified Hausdorff distance (MHD), between the automatic delineations and the manual delineations performed by an expert, for the eight cases of the dataset and the two structures of interest.

	P1	P2	P3	P4	P5	P6	P7	P8	Av.	St. dev.
Thrombus boundary
DC	0.91	0.82	0.91	0.90	0.88	0.83	0.89	0.90	0.88	0.03
MHD (mm)	0.88	1.91	0.76	1.24	0.94	1.29	1.28	0.86	1.14	0.37
Outer wall boundary
DC	0.89	0.81	0.90	0.89	0.87	0.83	0.86	0.87	0.86	0.03
MHD (mm)	0.90	2.28	0.79	1.33	0.77	2.35	1.37	0.92	1.31	0.62