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  1. Medical and Biological Engineering and Computing
  2. Medical and Biological Engineering and Computing : Volume 45
  3. Medical and Biological Engineering and Computing : Volume 45, Issue 9, September 2007
  4. A procedure to simulate coronary artery bypass graft surgery
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Medical and Biological Engineering and Computing : Volume 55
Medical and Biological Engineering and Computing : Volume 54
Medical and Biological Engineering and Computing : Volume 53
Medical and Biological Engineering and Computing : Volume 52
Medical and Biological Engineering and Computing : Volume 51
Medical and Biological Engineering and Computing : Volume 50
Medical and Biological Engineering and Computing : Volume 49
Medical and Biological Engineering and Computing : Volume 48
Medical and Biological Engineering and Computing : Volume 47
Medical and Biological Engineering and Computing : Volume 46
Medical and Biological Engineering and Computing : Volume 45
Medical and Biological Engineering and Computing : Volume 45, Issue 12, December 2007
Medical and Biological Engineering and Computing : Volume 45, Issue 11, November 2007
Medical and Biological Engineering and Computing : Volume 45, Issue 10, October 2007
Medical and Biological Engineering and Computing : Volume 45, Issue 9, September 2007
Current status and new horizons in Monte Carlo simulation of X-ray CT scanners
A procedure to simulate coronary artery bypass graft surgery
A computational fluid dynamics study of inspiratory flow in orotracheal geometries
Comparison of three rheological models of shear flow behavior studied on blood samples from post-infarction patients
Computer model for the optimization of AV and VV delay in cardiac resynchronization therapy
Radial strain assessment of the interventricular septum wall by a new technique in healthy subjects
The compensation of perturbing temperature fluctuation in glucose monitoring technologies based on impedance spectroscopy
A wearable mobihealth care system supporting real-time diagnosis and alarm
ARMin: a robot for patient-cooperative arm therapy
Interactive visuo-motor therapy system for stroke rehabilitation
Medical and Biological Engineering and Computing : Volume 45, Issue 8, August 2007
Medical and Biological Engineering and Computing : Volume 45, Issue 7, July 2007
Medical and Biological Engineering and Computing : Volume 45, Issue 6, June 2007
Medical and Biological Engineering and Computing : Volume 45, Issue 5, May 2007
Medical and Biological Engineering and Computing : Volume 45, Issue 4, April 2007
Medical and Biological Engineering and Computing : Volume 45, Issue 3, March 2007
Medical and Biological Engineering and Computing : Volume 45, Issue 2, February 2007
Medical and Biological Engineering and Computing : Volume 45, Issue 1, January 2007
Medical and Biological Engineering and Computing : Volume 44
Medical and Biological Engineering and Computing : Volume 43
Medical and Biological Engineering and Computing : Volume 42
Medical and Biological Engineering and Computing : Volume 41
Medical and Biological Engineering and Computing : Volume 40
Medical and Biological Engineering and Computing : Volume 39
Medical and Biological Engineering and Computing : Volume 38
Medical and Biological Engineering and Computing : Volume 37
Medical and Biological Engineering and Computing : Volume 36
Medical and Biological Engineering and Computing : Volume 35

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A procedure to simulate coronary artery bypass graft surgery

Content Provider SpringerLink
Author Cacho, Fernando Doblaré, Manuel Holzapfel, Gerhard A.
Copyright Year 2007
Abstract In coronary artery bypass graft (CABG) surgery the involved tissues are overstretched, which may lead to intimal hyperplasia and graft failure. We propose a computational methodology for the simulation of traditional CABG surgery, and analyze the effect of two clinically relevant parameters on the artery and graft responses, i.e., incision length and insertion angle for a given graft diameter. The computational structural analyses are based on actual three-dimensional vessel dimensions of a human coronary artery and a human saphenous vein. The analyses consider the structure of the end-to-side anastomosis, the residual stresses and the typical anisotropic and nonlinear vessel behaviors. The coronary artery is modeled as a three-layer thick-walled tube. The finite element method is employed to predict deformation and stress distribution at various stages of CABG surgery. Small variations of the arterial incision have relatively big effects on the size of the arterial opening, which depends solely on the residual stress state. The incision length has a critical influence on the graft shape and the stress in the graft wall. Stresses at the heel region are higher than those at the toe region. The changes in the mechanical environment are severe along all transitions between the venous tissue and the host artery. Particular stress concentrations occur at the incision ends. The proposed computational methodology may be useful in designing a coronary anastomotic device for reducing surgical trauma. It may improve the quantitative knowledge of vessel diseases and serve as a tool for virtual planning of vascular surgery.
Starting Page 819
Ending Page 827
Page Count 9
File Format PDF
ISSN 01400118
Journal Medical and Biological Engineering and Computing
Volume Number 45
Issue Number 9
e-ISSN 17410444
Language English
Publisher Springer-Verlag
Publisher Date 2007-08-03
Publisher Place Berlin, Heidelberg
Access Restriction One Nation One Subscription (ONOS)
Subject Keyword CABG End-to-side anastomosis Finite element method Intimal hyperplasia Solid mechanics Neurosciences Computer Applications Imaging Radiology Human Physiology Biomedical Engineering
Content Type Text
Resource Type Article
Subject Biomedical Engineering Computer Science Applications
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