Figure 4
From: Automated detection of cerebral microbleeds on T2*-weighted MRI
Geometric measure cutoff justifications. This figure illustrates the geometric properties used to remove false positives from the identified locations in SWI and GRE images. Modalities are separated into panels. (A) Distribution of 3D entropy in the ROI neighborhood on SWI. (B) Distribution of the 2D entropy of the maximum intensity projection of the ROI neighborhood on SWI. (C) Number of false positives removed at different cutoffs of the Frangi vesselness measure based on the central blob volume on SWI. (D) Number of false positives removed at different cutoffs of the Frangi vesselness measure based on the central blob compactness on SWI. (E) Distribution of 3D entropy in the ROI neighborhood on GRE. (F) Distribution of the 2D entropy of the maximum intensity projection of the ROI neighborhood on GRE. (G) Number of false positives removed at different cutoffs of the Frangi vesselness measure based on the central blob volume on GRE. (H) Number of false positives removed at different cutoffs of the Frangi vesselness measure based on the central blob compactness on GRE.
