| FEM analysis of predicting electrode-myocardium contact from RF cardiac catheter ablation system impedance. | |
| | |
MedLine Citation:
|
PMID: 12046696 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
We used the finite-element method (FEM) to model and analyze the resistance between the catheter tip electrode and the dispersive electrode during radio-frequency cardiac catheter ablation for the prediction of myocardium-electrode contact. We included deformation of the myocardial surface to achieve accurate modeling. For perpendicular catheter contact, we measured the side view of myocardial deformation using X-ray projection imaging. We averaged the deformation contour from nine samples, and then incorporated the contour information into our FEM model. We measured the resistivity of the bovine myocardium using the four-electrode method, and then calculated the resistance change as the catheter penetrated into the myocardium. The FEM result of resistance versus catheter penetration depth matches well with our experimental data. |
| | |
Authors:
|
Hong Cao; Michael A Speidel; Jang-Zern Tsai; Michael S Van Lysel; Vicken R Vorperian; John G Webster |
Related Documents
:
|
20939856 - Non-compliance does not impair qualitative evaluation of colonic transit time. 15465216 - Automated model-based organ delineation for radiotherapy planning in prostatic region. 20426136 - Dynamic cone beam reconstruction using a new level set formulation. 18002076 - Airway segmentation and measurement in ct images. 21045826 - A quantitative analysis of transmission efficiency versus intensity for malaria. 23244816 - Whole disease modeling to inform resource allocation decisions in cancer: a methodologi... |
Publication Detail:
|
Type: Comparative Study; Journal Article; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
|
Title: IEEE transactions on bio-medical engineering Volume: 49 ISSN: 0018-9294 ISO Abbreviation: IEEE Trans Biomed Eng Publication Date: 2002 Jun |
Date Detail:
|
Created Date: 2002-06-05 Completed Date: 2002-07-19 Revised Date: 2009-11-11 |
Medline Journal Info:
|
Nlm Unique ID: 0012737 Medline TA: IEEE Trans Biomed Eng Country: United States |
Other Details:
|
Languages: eng Pagination: 520-6 Citation Subset: IM |
Affiliation:
|
Department of Electrical and Computer Engineering, University of Wisconsin, Madison 53706, USA. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Animals Catheter Ablation / instrumentation, methods* Cattle Elasticity Electric Impedance Electrodes Finite Element Analysis* Image Processing, Computer-Assisted Models, Cardiovascular* Myocardium / pathology* Radio Waves Stress, Mechanical |
| Grant Support | |
ID/Acronym/Agency:
|
HL 56143/HL/NHLBI NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Use of the ventricular propagated excitation model in the magnetocardiographic inverse problem for r...
Next Document: Effects of stochastic sodium channels on extracellular excitation of myelinated nerve fibers.