Title
Example based lesion segmentation
Abstract
Automatic and accurate detection of white matter lesions is a significant step toward understanding the progression of many diseases, like Alzheimer's disease or multiple sclerosis. Multi-modal MR images are often used to segment T-2 white matter lesions that can represent regions of demyelination or ischemia, Sonic automated lesion segmentation methods describe the lesion intensities using generative models, and then classify the lesions with some combination of heuristics and cost minimization. in contrast, we propose a patch-based method, in which lesions are found using examples from an atlas containing multi-modal MR images and corresponding manual delineations of lesions. Patches from subject ME images are matched to patches from the atlas and lesion memberships are found based on patch similarity weights. We experiment on 43 subjects with MS, whose scans show various levels of lesion-load. We demonstrate significant improvement in Dice coefficient and total lesion volume compared to a state of the art model-based lesion segmentation method, indicating more accurate delineation of lesions.
Year
DOI
Venue
2014
10.1117/12.2043917
Proceedings of SPIE
Keywords
Field
DocType
magnetic resonance imaging,MRI,lesion segmentation,MS,patches
Computer vision,Lesion,Segmentation,Sørensen–Dice coefficient,Multiple sclerosis,Artificial intelligence,Hyperintensity,Lesion segmentation,Magnetic resonance imaging,Physics
Conference
Volume
ISSN
Citations 
9034
0277-786X
12
PageRank 
References 
Authors
0.58
13
8
Name
Order
Citations
PageRank
Snehashis Roy123923.70
Qing He2464.62
Aaron Carass338343.15
Amod Jog417413.09
Jennifer L Cuzzocreo51035.03
Daniel S. Reich620915.94
Jerry L. Prince74990488.42
dzung pham8120.58