{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T14:56:26Z","timestamp":1753887386364,"version":"3.41.2"},"reference-count":40,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2021,11,11]],"date-time":"2021-11-11T00:00:00Z","timestamp":1636588800000},"content-version":"vor","delay-in-days":314,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Computational Intelligence and Neuroscience"],"published-print":{"date-parts":[[2021,1]]},"abstract":"<jats:p>In this paper, we propose a novel method, an adaptive localizing region\u2010based level set using convolutional neural network, for improving performance of maxillary sinus segmentation. The healthy sinus without lesion inside is easy for conventional algorithms. However, in practice, most of the cases are filled with lesions of great heterogeneity which lead to lower accuracy. Therefore, we provide a strategy to avoid active contour from being trapped into a nontarget area. First, features of lesion and maxillary sinus are studied using a convolutional neural network (CNN) with two convolutional and three fully connected layers in architecture. In addition, outputs of CNN are devised to evaluate possibilities of zero level set location close to lesion or not. Finally, the method estimates stable points on the contour by an interactive process. If it locates in the lesion, the point needs to be paid a certain speed compensation based on the value of possibility via CNN, assisting itself to escape from the local minima. If not, the point preserves current status till convergence. Capabilities of our method have been demonstrated on a dataset of 200 CT images with possible lesions. To illustrate the strength of our method, we evaluated it against state\u2010of\u2010the\u2010art methods, FLS and CRF\u2010FCN. For all cases, our method, as assessed by Dice similarity coefficients, performed significantly better compared with currently available methods and obtained a significant Dice improvement, 0.25 than FLS and 0.12 than CRF\u2010FCN, respectively, on an average.<\/jats:p>","DOI":"10.1155\/2021\/4824613","type":"journal-article","created":{"date-parts":[[2021,11,12]],"date-time":"2021-11-12T05:35:08Z","timestamp":1636695308000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Adaptive Localizing Region\u2010Based Level Set for Segmentation of Maxillary Sinus Based on Convolutional Neural Networks"],"prefix":"10.1155","volume":"2021","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9370-4386","authenticated-orcid":false,"given":"Xianglong","family":"Qi","sequence":"first","affiliation":[]},{"given":"Jie","family":"Zhong","sequence":"additional","affiliation":[]},{"given":"Shengjia","family":"Cui","sequence":"additional","affiliation":[]}],"member":"311","published-online":{"date-parts":[[2021,11,11]]},"reference":[{"key":"e_1_2_7_1_2","doi-asserted-by":"publisher","DOI":"10.1017\/s0022215117001335"},{"key":"e_1_2_7_2_2","doi-asserted-by":"publisher","DOI":"10.1002\/14651858.cd000243.pub3"},{"key":"e_1_2_7_3_2","doi-asserted-by":"publisher","DOI":"10.2500\/ajr.2008.22.3248"},{"key":"e_1_2_7_4_2","first-page":"109","article-title":"Anatomic variations of the sphenoid sinus on computed tomography","volume":"43","author":"Kazkayasi M.","year":"2005","journal-title":"Rhinology"},{"key":"e_1_2_7_5_2","doi-asserted-by":"publisher","DOI":"10.1148\/radiol.2016152230"},{"key":"e_1_2_7_6_2","first-page":"1","article-title":"Image guided surgery of paranasal sinuses and anterior skull base-five years experience with the instatrak\u00ae-system","volume":"40","author":"Koele W.","year":"2002","journal-title":"Rhinology"},{"key":"e_1_2_7_7_2","first-page":"97840V","volume-title":"Medical Imaging 2016: Image Processing","author":"Leonard S.","year":"2016"},{"key":"e_1_2_7_8_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00405-008-0777-7"},{"key":"e_1_2_7_9_2","doi-asserted-by":"publisher","DOI":"10.3171\/jns.2001.94.3.0377"},{"key":"e_1_2_7_10_2","doi-asserted-by":"publisher","DOI":"10.1016\/0021-9991(88)90002-2"},{"key":"e_1_2_7_11_2","doi-asserted-by":"publisher","DOI":"10.1023\/a:1007979827043"},{"key":"e_1_2_7_12_2","doi-asserted-by":"crossref","unstructured":"LiC. 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