کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4500494 1319997 2010 18 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Decoupled time-marching schemes in computational cardiac electrophysiology and ECG numerical simulation
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم کشاورزی و بیولوژیک (عمومی)
پیش نمایش صفحه اول مقاله
Decoupled time-marching schemes in computational cardiac electrophysiology and ECG numerical simulation
چکیده انگلیسی
This work considers the approximation of the cardiac bidomain equations, either isolated or coupled with the torso, via first order semi-implicit time-marching schemes involving a fully decoupled computation of the unknown fields (ionic state, transmembrane potential, extracellular and torso potentials). For the isolated bidomain system, we show that the Gauss-Seidel and Jacobi like splittings do not compromise energy stability; they simply alter the energy norm. Within the framework of the numerical simulation of electrocardiograms (ECG), these bidomain splittings are combined with an explicit Robin-Robin treatment of the heart-torso coupling conditions. We show that the resulting schemes allow a fully decoupled (energy) stable computation of the heart and torso fields, under an additional hyperbolic-CFL like condition. The accuracy and convergence rate of the considered schemes are investigated numerically with a series of numerical experiments.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Mathematical Biosciences - Volume 226, Issue 1, July 2010, Pages 58-75
نویسندگان
, ,