Magnetocardiographic Imaging for Ischemic Myocardial Muscles on Rats

Seiya UCHIDA; Kiichi GOTO; Akira TACHIKAWA; Keiji IRAMINA; Shoogo UENO

Magnetocardiographic Imaging for Ischemic Myocardial Muscles on Rats

Seiya UCHIDA, Kiichi GOTO, Akira TACHIKAWA, Keiji IRAMINA, Shoogo UENO

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The purpose of our study is to estimate the imaging of ischemic myocardial muscles in rats. The magnetocardiograms (MCG) of rats were measured by a 12-channel high resolution gradiometer, which consisted of 5 mm diameter pick-up coils with a 7.5 mm distance between each coil. MCGs of seven male rats were measured in a magnetically shielded room pre and post coronary artery occlusion. The source imaging was estimated by minimum norm estimation (MNE). Changes of the current source imaging pre- and post coronary artery occlusion were clarified. As a result, in the ST segment, the current distribution significantly increased at the ischemic area. In the T wave, the direction of the current distribution clearly shifted to the left thorax. We proved that the increased area of the current distribution in the ST segment was related to the ischemic area of the ventricular muscles.

Publication: IEICE TRANSACTIONS on Information Vol.E85-D No.1 pp.30-35

Publication Date: 2002/01/01

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Type of Manuscript: Special Section PAPER (Special Issue on Measurements and Visualization Technology of Biological Information)

Category: Measurement Technology

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Seiya UCHIDA, Kiichi GOTO, Akira TACHIKAWA, Keiji IRAMINA, Shoogo UENO, "Magnetocardiographic Imaging for Ischemic Myocardial Muscles on Rats" in IEICE TRANSACTIONS on Information, vol. E85-D, no. 1, pp. 30-35, January 2002, doi: .
Abstract: The purpose of our study is to estimate the imaging of ischemic myocardial muscles in rats. The magnetocardiograms (MCG) of rats were measured by a 12-channel high resolution gradiometer, which consisted of 5 mm diameter pick-up coils with a 7.5 mm distance between each coil. MCGs of seven male rats were measured in a magnetically shielded room pre and post coronary artery occlusion. The source imaging was estimated by minimum norm estimation (MNE). Changes of the current source imaging pre- and post coronary artery occlusion were clarified. As a result, in the ST segment, the current distribution significantly increased at the ischemic area. In the T wave, the direction of the current distribution clearly shifted to the left thorax. We proved that the increased area of the current distribution in the ST segment was related to the ischemic area of the ventricular muscles.
URL: https://global.ieice.org/en_transactions/information/10.1587/e85-d_1_30/_p

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@ARTICLE{e85-d_1_30,
author={Seiya UCHIDA, Kiichi GOTO, Akira TACHIKAWA, Keiji IRAMINA, Shoogo UENO, },
journal={IEICE TRANSACTIONS on Information},
title={Magnetocardiographic Imaging for Ischemic Myocardial Muscles on Rats},
year={2002},
volume={E85-D},
number={1},
pages={30-35},
abstract={The purpose of our study is to estimate the imaging of ischemic myocardial muscles in rats. The magnetocardiograms (MCG) of rats were measured by a 12-channel high resolution gradiometer, which consisted of 5 mm diameter pick-up coils with a 7.5 mm distance between each coil. MCGs of seven male rats were measured in a magnetically shielded room pre and post coronary artery occlusion. The source imaging was estimated by minimum norm estimation (MNE). Changes of the current source imaging pre- and post coronary artery occlusion were clarified. As a result, in the ST segment, the current distribution significantly increased at the ischemic area. In the T wave, the direction of the current distribution clearly shifted to the left thorax. We proved that the increased area of the current distribution in the ST segment was related to the ischemic area of the ventricular muscles.},
keywords={},
doi={},
ISSN={},
month={January},}

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TY - JOUR
TI - Magnetocardiographic Imaging for Ischemic Myocardial Muscles on Rats
T2 - IEICE TRANSACTIONS on Information
SP - 30
EP - 35
AU - Seiya UCHIDA
AU - Kiichi GOTO
AU - Akira TACHIKAWA
AU - Keiji IRAMINA
AU - Shoogo UENO
PY - 2002
DO -
JO - IEICE TRANSACTIONS on Information
SN -
VL - E85-D
IS - 1
JA - IEICE TRANSACTIONS on Information
Y1 - January 2002
AB - The purpose of our study is to estimate the imaging of ischemic myocardial muscles in rats. The magnetocardiograms (MCG) of rats were measured by a 12-channel high resolution gradiometer, which consisted of 5 mm diameter pick-up coils with a 7.5 mm distance between each coil. MCGs of seven male rats were measured in a magnetically shielded room pre and post coronary artery occlusion. The source imaging was estimated by minimum norm estimation (MNE). Changes of the current source imaging pre- and post coronary artery occlusion were clarified. As a result, in the ST segment, the current distribution significantly increased at the ischemic area. In the T wave, the direction of the current distribution clearly shifted to the left thorax. We proved that the increased area of the current distribution in the ST segment was related to the ischemic area of the ventricular muscles.
ER -