Computationally efficient noninvasive cardiac activation time imaging. Fischer, G., Pfeifer, B., Seger, M., Hintermuller, C., Hanser, F., Modre, R., Tilg, B., Trieb, T., Kremser, C., Roithinger, F., & Hintringer, F. *Methods Inf Med*, 44(5):674--686, 2005. bibtex @Article{RSM:Fis2005,
author = "G. Fischer and B. Pfeifer and M. Seger and C.
Hintermuller and F. Hanser and R. Modre and B. Tilg and
T. Trieb and C. Kremser and F.X. Roithinger and F.
Hintringer",
title = "Computationally efficient noninvasive cardiac
activation time imaging.",
journal = "Methods Inf Med",
year = "2005",
volume = "44",
number = "5",
pages = "674--686",
robnote = "The objective is the development of a method which
performs the computation in a few minutes run time. The
computationally most expensive part is the product of
the lead field matrix with a matrix containing the
source pattern on the cardiac surface. The particular
biophysical properties of both matrices are used for
speeding up this operation by more than an order of
magnitude. A conjugate gradient optimizer was developed
using C++ for computing the activation map. The
increase in speed with respect to the previously used
Fortran 77 implementation was a factor of 30 at a
comparable quality of the results. As an additional
finding the coupled regularization strategy, originally
introduced for saving computation time, also reduced
the sensitivity of the method to the choice of the
regularization parameter.",
bibdate = "Thu Mar 9 21:00:41 2006",
}

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