Parametric modeling of the beating heart with respiratory motion extracted from magnetic resonance images

verfasst von: Gerard Pons-Moll, G. Crosas Cano, G. Tadmor, R. S. MacLeod, Bodo Rosenhahn, D. H. Brooks
Abstract: In atrial fibrillation ablation procedures on-line measurement of catheter position is often displayed to the clinician against a static anatomy from pre-procedure scans. However the heart is moving due to both contraction and respiratory motion. Thus both small-scale and large-scale inaccuracies are introduced into the visualization. As part of a larger project to improve delivery of ablation, we are developing parametric models to animate static three-dimensional pre-procedure anatomical models to include the dynamics. To make our heart model "beat" we combine image processing methods with Fourier and polynomial representations, and combine global and local smoothing. The result is an efficient parameterization of the moving surface over both space and time. The steps for making the heart move due to respiration are only partially complete. Here we concentrate on registering a sequence of ungated MR slice sequences. The approach involves parameterizing motion of curves representing anatomical landmarks and enforcing consistency in the cross-slice direction.
Organisationseinheit(en): Institut für Informationsverarbeitung
Externe Organisation(en): Universitat Politècnica de Catalunya
Northeastern University
University of Utah
Typ: Aufsatz in Konferenzband
Seiten: 453-456
Anzahl der Seiten: 4
Publikationsdatum: 2009
Publikationsstatus: Veröffentlicht
Peer-reviewed: Ja
ASJC Scopus Sachgebiete: Angewandte Informatik, Kardiologie und kardiovaskuläre Medizin
Elektronische Version(en): https://ieeexplore.ieee.org/document/5445373/authors (Zugang: Unbekannt)

BibTeX

@inproceedings{edc08ddc570940dd869e5d0da752861a,
title = "Parametric modeling of the beating heart with respiratory motion extracted from magnetic resonance images",
abstract = "In atrial fibrillation ablation procedures on-line measurement of catheter position is often displayed to the clinician against a static anatomy from pre-procedure scans. However the heart is moving due to both contraction and respiratory motion. Thus both small-scale and large-scale inaccuracies are introduced into the visualization. As part of a larger project to improve delivery of ablation, we are developing parametric models to animate static three-dimensional pre-procedure anatomical models to include the dynamics. To make our heart model {"}beat{"} we combine image processing methods with Fourier and polynomial representations, and combine global and local smoothing. The result is an efficient parameterization of the moving surface over both space and time. The steps for making the heart move due to respiration are only partially complete. Here we concentrate on registering a sequence of ungated MR slice sequences. The approach involves parameterizing motion of curves representing anatomical landmarks and enforcing consistency in the cross-slice direction.",
author = "Gerard Pons-Moll and {Crosas Cano}, G. and G. Tadmor and MacLeod, {R. S.} and Bodo Rosenhahn and Brooks, {D. H.}",
year = "2009",
language = "English",
isbn = "9781424472819",
series = "Computers in Cardiology",
pages = "453--456",
booktitle = "Computers in Cardiology 2009, CinC 2009",
note = "36th Annual Conference of Computers in Cardiology, CinC 2009 ; Conference date: 13-09-2009 Through 16-09-2009",
}