Conference Proceeding

Organ Segmentation Using Atlas Registration and Fuzzy Connectedness

Dept. of Biomedical Eng., Tsinghua Univ., Beijing
02/2006; DOI:10.1109/IEMBS.2005.1617167 pp.3241 - 3244 In proceeding of: Engineering in Medicine and Biology Society, 2005. IEEE-EMBS 2005. 27th Annual International Conference of the
Source: IEEE Xplore

ABSTRACT In this paper, a framework combining the atlas registration and the fuzzy connectedness for the automatic segmentation of abdominal organs is proposed. First, a pre-labeled atlas is registered onto the subject to establish the proper correspondence between the atlas and subject. Second, we utilize the fuzzy connectedness framework to segment organs of interest from the subject image. Taking advantage of the correspondences between atlas and subject, common interactive or empirical specification of fuzzy connectedness parameters are replaced by automatic and subject-oriented specification. The performance of the proposed method has been qualitatively validated on CT and MRI images with manual segmentation as ground truth. Results have shown the versatility of this method in segmenting images of different modalities. This automatic method is expected to find wide applications in 3D visualization, radiation treatments planning, and medical database construction

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Keywords

abdominal organs
 
atlas registration
 
automatic segmentation
 
fuzzy connectedness
 
fuzzy connectedness framework
 
fuzzy connectedness parameters
 
ground truth
 
manual segmentation
 
medical database construction
 
MRI images
 
pre-labeled atlas
 
proper correspondence
 
proposed method
 
radiation treatments planning
 
segment organs
 
segmenting images
 
subject image
 
subject-oriented specification
 
versatility
 
wide applications
 

Yongxin Zhou