کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1761919 1019669 2011 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Left Ventricular Border Tracking Using Cardiac Motion Models and Optical Flow
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم آکوستیک و فرا صوت
پیش نمایش صفحه اول مقاله
Left Ventricular Border Tracking Using Cardiac Motion Models and Optical Flow
چکیده انگلیسی
The use of automated methods is becoming increasingly important for assessing cardiac function quantitatively and objectively. In this study, we propose a method for tracking three-dimensional (3-D) left ventricular contours. The method consists of a local optical flow tracker and a global tracker, which uses a statistical model of cardiac motion in an optical-flow formulation. We propose a combination of local and global trackers using gradient-based weights. The algorithm was tested on 35 echocardiographic sequences, with good results (surface error: 1.35 ± 0.46 mm, absolute volume error: 5.4 ± 4.8 mL). This demonstrates the method's potential in automated tracking in clinical quality echocardiograms, facilitating the quantitative and objective assessment of cardiac function. (E-mail: k.leung@erasmusmc.nl)
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ultrasound in Medicine & Biology - Volume 37, Issue 4, April 2011, Pages 605-616
نویسندگان
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