DBP3:Utah:AutoWallSeg

Automatic Segmentation

Automatic Wall Segmentation from GA Tech

GA Tech produced a slicer module to automatically segment the left atrial wall, given the original data AND the endo (blood pool) segmentation. Below is some evaluation of those segmentations.

Auto, Endo, and Manaul Wall (01 3mo s5)	Auto, Endo, and Manual Wall (01 3mo s4)	Auto, Endo, and Manual Wall (01 3mo s1)	Auto, Endo, and 4 Pixel Dilation from Endo (01 3mo s1)
This image shows how the automatic wall segmentation creates a complete surface around the endo - while a manual segmentor would cut off the wall around the veins (although the location this cutoff decision is arbitrary).	This image shows where the automatic segmentation surrounds a vein, while the manual segmentor decided to not surround the vein.	This image shows some island artifacts that may be the result of the process being done in 3D (leaking from the slice above) - note that the data below the islands is lighter.	Here we show a 4 pixel dilation from the endo compared to the automatic segmentation. This also image shows more islands.