Segmentation of anterior cruciate ligament in knee MR images using graph cuts with patient-specific shape constraints and label refinement

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dc.contributor.authorLee, Han Sangko
dc.contributor.authorHong, Helenko
dc.contributor.authorKim, Jun-Moko
dc.date.accessioned2015-03-27T07:47:41Z-
dc.date.available2015-03-27T07:47:41Z-
dc.date.created2014-11-25-
dc.date.created2014-11-25-
dc.date.issued2014-12-
dc.identifier.citationCOMPUTERS IN BIOLOGY AND MEDICINE, v.55, pp.1 - 10-
dc.identifier.issn0010-4825-
dc.identifier.urihttp://hdl.handle.net/10203/194468-
dc.description.abstractWe propose a graph-cut-based segmentation method for the anterior cruciate ligament (ACL) in knee MRI with a novel shape prior and label refinement. As the initial seeds for graph cuts, candidates for the ACL and the background are extracted from knee MRI roughly by means of adaptive thresholding with Gaussian mixture model fitting. The extracted ACL candidate is segmented iteratively by graph cuts with patient-specific shape constraints. Two shape constraints termed fence and neighbor costs are suggested such that the graph cuts prevent any leakage into adjacent regions with similar intensity. The segmented ACL label is refined by means of superpbcel classification. Superpixel classification makes the segmented label propagate into missing inhomogeneous regions inside the ACL In the experiments, the proposed method segmented the ACL with Dice similarity coefficient of 66.47 +/- 7.97%, average surface distance of 2.247 +/- 0.869, and root mean squared error of 3.538 +/- 1.633, which increased the accuracy by 14.8%, 403%, and 37.6% from the Boykov model, respectively.-
dc.languageEnglish-
dc.publisherPERGAMON-ELSEVIER SCIENCE LTD-
dc.titleSegmentation of anterior cruciate ligament in knee MR images using graph cuts with patient-specific shape constraints and label refinement-
dc.typeArticle-
dc.identifier.wosid000346228600001-
dc.identifier.scopusid2-s2.0-84908671977-
dc.type.rimsART-
dc.citation.volume55-
dc.citation.beginningpage1-
dc.citation.endingpage10-
dc.citation.publicationnameCOMPUTERS IN BIOLOGY AND MEDICINE-
dc.identifier.doi10.1016/j.compbiomed.2014.09.004-
dc.contributor.localauthorKim, Jun-Mo-
dc.contributor.nonIdAuthorHong, Helen-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorKnee MRI-
dc.subject.keywordAuthorACL segmentation-
dc.subject.keywordAuthorGraph cuts-
dc.subject.keywordAuthorShape constraints-
dc.subject.keywordAuthorSuperpixelization-
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