کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
504203 864281 2012 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Automated TIMI frame counting using 3-d modeling
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
Automated TIMI frame counting using 3-d modeling
چکیده انگلیسی

Three dimensional coronary modeling and reconstruction can assist in the quantitative analysis of coronary flow velocity from 2-d coronary images. In this paper a novel method to assess coronary flow velocity is proposed. First, 3-d models of the coronary arteries are estimated from bi-plane X-ray images using epipolar constraint energy minimization for the selected fiducial points like bifurcations, and subsequently 3-d B-spline energy minimization for the arterial segments. A 4-d model is assembled from a set of 3-d models representing different phases of the cardiac cycle. The 4-d model is fitted to the 2-d image sequences containing basal or hyperemic blood flow information. Then, by counting the frames in analogy with TIMI frame counting, an index of the mean coronary flow velocity can be estimated. Our experimental results show that the algorithm correlates with r = 0.98 (P<0.0001, 95% CI 0.92–0.99) to the clinical measurements of the TFC.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computerized Medical Imaging and Graphics - Volume 36, Issue 7, October 2012, Pages 580–588
نویسندگان
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