Recent progress in inverse problems in electrocardiology.
نویسندگان
چکیده
Short titles: Inverse Problems in Electrocardiology Address for correspondence: Dr. Robert S. Macleod, Nora Eccles Harrison CVRTI, Building 500, University of Utah, Salt Lake City, Utah. Telephone: (801)581-8183, FAX: (801)581-3128, Email: [email protected]. Support: Richard A. and Nora Eccles Harrison Treadwell Fund for Cardiovascular Research and awards from the Nora Eccles Treadwell Foundation. National Institutes of Health SCOR in Sudden Cardiac Death, HL 52338-01. National Science Foundation under Grant No. BCS9309359,
منابع مشابه
On 3D numerical inverse problems for the bidomain model in electrocardiology
In the inverse problem en electrocardiology, the goal is to recover electrophysiological activity in the heart without measuring directly on its surface (without using catheter interventions). Note that today the inverse computation is frequently used by solving the quasi-static model. This model doesnt take into account the heart dynamic in time and may result in considerable errors in the rec...
متن کاملMultielectrode venous catheter mapping as a high quality constraint for electrocardiographic inverse solution.
A persistent challenge in solving inverse problems in electrocardiography is the application of suitable constraints to the calculation of cardiac sources. Whether one formulates the inverse problem in terms of epicardial potentials or activation wavefronts, the problem is physically ill-posed and hence results in numerically unstable computations. Suitable physiological constraints applied wit...
متن کاملDipole density instead of potentials in electrocardiology
We discuss the forward and inverse problems between the potential V (x) measured in a heart chamber and its sources represented by a dipole density d(y) located on the heart wall. We show that the mapping from d(y) to V (x) is a compact integral operator. Its inverse is unbounded which makes the inverse problem ill-posed in the mathematical sense. We investigate methods to solve the inverse pro...
متن کاملMultilevel Schwarz preconditioners for the Bidomain system and applications to electrocardiology
Mathematical modeling and computer simulation has become in recent years an important support to experimental studies, for investigating the bioelectrical activity in cardiac tissue. The most complete mathematical model of electrocardiology is the Bidomain model, a degenerate parabolic system of nonlinear reaction-diffusion equations, coupled with a system of ordinary differential equations. In...
متن کاملInverse Maximum Dynamic Flow Problem under the Sum-Type Weighted Hamming Distance
Inverse maximum flow (IMDF), is among the most important problems in the field ofdynamic network flow, which has been considered the Euclidean norms measure in previousresearches. However, recent studies have mainly focused on the inverse problems under theHamming distance measure due to their practical and important applications. In this paper,we studies a general approach for handling the inv...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- IEEE engineering in medicine and biology magazine : the quarterly magazine of the Engineering in Medicine & Biology Society
دوره 17 1 شماره
صفحات -
تاریخ انتشار 1998