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DC Field Value Language Lee, Kyungsu - Kim, Jun Young - Lee, Moon Hwan - Choi, Chang-Hyuk - Hwang, Jae Youn - 2021-08-17T20:04:55Z - 2021-08-17T20:04:55Z - 2021-04-01 - 2021-03 -
dc.identifier.citation Sensors, v.21, no.6, pp.1 - 20 -
dc.identifier.issn 1424-8220 -
dc.identifier.uri -
dc.description.abstract A rotator cuff tear (RCT) is an injury in adults that causes difficulty in moving, weakness, and pain. Only limited diagnostic tools such as magnetic resonance imaging (MRI) and ultrasound Imaging (UI) systems can be utilized for an RCT diagnosis. Although UI offers comparable performance at a lower cost to other diagnostic instruments such as MRI, speckle noise can occur the degradation of the image resolution. Conventional vision-based algorithms exhibit inferior performance for the segmentation of diseased regions in UI. In order to achieve a better segmentation for diseased regions in UI, deep-learning-based diagnostic algorithms have been developed. However, it has not yet reached an acceptable level of performance for application in orthopedic surgeries. In this study, we developed a novel end-to-end fully convolutional neural network, denoted as Segmentation Model Adopting a pRe-trained Classification Architecture (SMART-CA), with a novel integrated on positive loss function (IPLF) to accurately diagnose the locations of RCT during an orthopedic examination using UI. Using the pre-trained network, SMART-CA can extract remarkably distinct features that cannot be extracted with a normal encoder. Therefore, it can improve the accuracy of segmentation. In addition, unlike other conventional loss functions, which are not suited for the optimization of deep learning models with an imbalanced dataset such as the RCT dataset, IPLF can efficiently optimize the SMART-CA. Experimental results have shown that SMART-CA offers an improved precision, recall, and dice coefficient of 0.604% (+38.4%), 0.942% (+14.0%) and 0.736% (+38.6%) respectively. The RCT segmentation from a normal ultrasound image offers the improved precision, recall, and dice coefficient of 0.337% (+22.5%), 0.860% (+15.8%) and 0.484% (+28.5%), respectively, in the RCT segmentation from an ultrasound image with severe speckle noise. The experimental results demonstrated the IPLF outperforms other conventional loss functions, and the proposed SMART-CA optimized with the IPLF showed better performance than other state-of-the-art networks for the RCT segmentation with high robustness to speckle noise. © 2021 by the authors. Licensee MDPI, Basel, Switzerland. -
dc.language English -
dc.publisher MDPI AG -
dc.title Imbalanced loss-integrated deep-learning-based ultrasound image analysis for diagnosis of rotator-cuff tear -
dc.type Article -
dc.identifier.doi 10.3390/s21062214 -
dc.identifier.wosid 000652730900001 -
dc.identifier.scopusid 2-s2.0-85102759208 -
dc.type.local Article(Overseas) -
dc.type.rims ART -
dc.description.journalClass 1 -
dc.citation.publicationname Sensors -
dc.contributor.nonIdAuthor Lee, Kyungsu -
dc.contributor.nonIdAuthor Kim, Jun Young -
dc.contributor.nonIdAuthor Lee, Moon Hwan -
dc.contributor.nonIdAuthor Choi, Chang-Hyuk -
dc.contributor.nonIdAuthor Hwang, Jae Youn -
dc.identifier.citationVolume 21 -
dc.identifier.citationNumber 6 -
dc.identifier.citationStartPage 1 -
dc.identifier.citationEndPage 20 -
dc.identifier.citationTitle Sensors -
dc.description.isOpenAccess Y -
dc.subject.keywordAuthor Deep learning -
dc.subject.keywordAuthor Rotator-cuff tear -
dc.subject.keywordAuthor Semantic segmentation -
dc.subject.keywordPlus Convolutional neural networks -
dc.subject.keywordPlus Image enhancement -
dc.subject.keywordPlus Image resolution -
dc.subject.keywordPlus Image segmentation -
dc.subject.keywordPlus Magnetic resonance imaging -
dc.subject.keywordPlus Speckle -
dc.subject.keywordPlus Ultrasonic imaging -
dc.subject.keywordPlus Diagnostic algorithms -
dc.subject.keywordPlus Imbalanced dataset -
dc.subject.keywordPlus Orthopedic surgery -
dc.subject.keywordPlus Segmentation models -
dc.subject.keywordPlus Ultrasound image analysis -
dc.subject.keywordPlus Ultrasound images -
dc.subject.keywordPlus Ultrasound imaging -
dc.subject.keywordPlus Vision based algorithms -
dc.subject.keywordPlus Deep learning -
dc.contributor.affiliatedAuthor Lee, Kyungsu -
dc.contributor.affiliatedAuthor Kim, Jun Young -
dc.contributor.affiliatedAuthor Lee, Moon Hwan -
dc.contributor.affiliatedAuthor Choi, Chang-Hyuk -
dc.contributor.affiliatedAuthor Hwang, Jae Youn -
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