MCG simulations of myocardial infarctions with a realistic heart-torso model.
Data from simulations of the anterior myocardial infarction (AMI) and inferior myocardial infarction (IMI) are presented. One infarct located in the anterior section of the left ventricle and a second one in the inferior wall of the left ventricle were modeled. A high-resolution finite element model of a heart and torso was used in this study. Differences in the normal and infarcted fields were computed. Our data suggest that the infarcted region contribution to the total magnetic field can be accounted for by an equivalent current dipole. It might also be possible to detect an infarct from these difference fields constructed for different cases of myocardial infarction. More simulations are needed to determine the relations between infarct sizes and locations and magnetic fields. These relations might then be used to detect various cases of myocardial infarction.
Czapski
P
P
Department of Electrical Engineering, University of Washington, Seattle 98195, USA.
Ramon
C
C
Haueisen
J
J
Huntsman
L L
LL
Nowak
H
H
Bardy
G H
GH
Leder
U
U
Kim
Y
Y
D055592:Biophysical Phenomena; D001703:Biophysics; D003198:Computer Simulation; D004553:Electric Conductivity; D020342:Finite Element Analysis; D006801:Humans; D008280:Magnetics; D008955:Models, Cardiovascular; D009203:Myocardial Infarction / Q000175:diagnosis*; D012680:Sensitivity and Specificity