مورد إلكتروني
Segmentation of Left and Right Ventricles in Cardiac MRI Using Active Contours
| العنوان: | Segmentation of Left and Right Ventricles in Cardiac MRI Using Active Contours |
|---|---|
| المصدر: | Computational And Mathematical Methods In Medicine; 10.1155/2017/8350680 |
| بيانات النشر: | 2017 |
| تفاصيل مُضافة: | Robòtica i Visió Intel.ligents Enginyeria Informàtica i Matemàtiques http://nportal0.urv.cat:18080/fourrepo/rest/digitalobjects/DS?objectId=PC%3A3100&datastreamId=DocumentPrincipal&mime=application%2Fpdf Akram, F.; Soomro, S.; Munir, A.; Lee, C.H.; Choi, K.N. |
| نوع الوثيقة: | Electronic Resource |
| مستخلص: | DOI: 10.1155/2017/8350680 URL: https://www.hindawi.com/journals/cmmm/2017/8350680/ Filiació URV: SI Segmentation of left and right ventricles plays a crucial role in quantitatively analyzing the global and regional information in the cardiac magnetic resonance imaging (MRI). In MRI, the intensity inhomogeneity and weak or blurred object boundaries are the problems, which makes it difficult for the intensity-based segmentation methods to properly delineate the regions of interests (ROI). In this paper, a hybrid signed pressure force function (SPF) is proposed, which yields both local and global image fitted differences in an additive fashion. A characteristic term is also introduced in the SPF function to restrict the contour within the ROI. The overlapping dice index and Hausdorff-Distance metrics have been used over cardiac datasets for quantitative validation. Using 2009 LV MICCAI validation dataset, the proposed method yields DSC values of 0.95 and 0.97 for endocardial and epicardial contours, respectively. Using 2012 RVMICCAI dataset, for the endocardial region, the proposed method yields DSC values of 0.97 and 0.90 and HD values of 8.51 and 7.67 for ED and ES, respectively. For the epicardial region, it yields DSC values of 0.92 and 0.91 and HD values of 6.47 and 9.34 for ED and ES, respectively. Results show its robustness in the segmentation application of the cardiac MRI. Universitat Rovira i Virgili |
| مصطلحات الفهرس: | Cor--Ventricle dret, Endocardi, endocardium, epicardium, heart right ventricle, Enginyeria informàtica, Ingeniería informática, Computer engineering, 1748-670X, article, Article, Artículo, info:eu-repo/semantics/publishedVersion |
| URL: | |
| الإتاحة: | Open access content. Open access content openAccess |
| ملاحظة: | Anglès 14380 kb |
| أرقام أخرى: | RIV oai:urv.cat:PC:3100 1084745220 |
| المصدر المساهم: | UNIVERSITAT ROVIRA I VIRGILI BIBLIOTECA From OAIster®, provided by the OCLC Cooperative. |
| رقم الأكسشن: | edsoai.on1084745220 |
| قاعدة البيانات: | OAIster |
| الوصف غير متاح. |