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Title: Myocardial infarction size and location: a comparative study of epicardial isopotential mapping, thallium-201 scintigraphy, electrocardiography and vectorcardiography

Abstract

Based on epicardial isopotential mapping (the Ep Map), which was calculated from body surface isopotential mapping (the Body Map) with Yamashita's method, using the finite element technique, we predicted the location and size of the abnormal depolarized area (the infarcted area) in 19 clinical cases of anterior and 18 cases of inferoposterior infarction. The prediction was done using Toyama's diagnostic method, previously reported. The accuracy of the prediction by the Ep Map was assessed by comparing it with findings from thallium-201 scintigraphy (SCG), electrocardiography (ECG) and vectorcardiography (VCG). In all cases of anterior infarction, the location of the abnormal depolarized areas determined on the Ep Map, which was localized at the anterior wall along the anterior intraventricular septum, agreed with the location of the abnormal findings obtained by SCG, ECG and VCG. For all inferoposterior infarction cases, the abnormal depolarized areas were localized at the posterior wall and the location also coincided with that of the abnormal findings obtained by SCG, ECG and VCG. Furthermore, we ranked and ordered the size of the abnormal depolarized areas, which were predicted by the Ep Map for both anterior and inferoposterior infarction cases. In the cases of anterior infarction, the order of themore » size of the abnormal depolarized area by the Ep Map was correlated to the size of the abnormal findings by SCG, as well as to the results from Selvester's QRS scoring system in ECG and to the angle of the maximum QRS vector in the horizontal plane in VCG.« less

Authors:
; ; ;
Publication Date:
Research Org.:
Center for Adult Diseases, Osaka, Japan
OSTI Identifier:
5841438
Resource Type:
Journal Article
Journal Name:
J. Electrocardiol.; (United States)
Additional Journal Information:
Journal Volume: 20:3
Country of Publication:
United States
Language:
English
Subject:
62 RADIOLOGY AND NUCLEAR MEDICINE; HEART; CARDIOGRAPHY; SCINTISCANNING; MYOCARDIAL INFARCTION; DIAGNOSIS; COMPARATIVE EVALUATIONS; ELECTROCARDIOGRAMS; ELECTROPHYSIOLOGY; THALLIUM 201; BETA DECAY RADIOISOTOPES; BODY; CARDIOVASCULAR DISEASES; CARDIOVASCULAR SYSTEM; COUNTING TECHNIQUES; DAYS LIVING RADIOISOTOPES; DIAGNOSTIC TECHNIQUES; DIAGRAMS; DISEASES; ELECTRON CAPTURE RADIOISOTOPES; HEAVY NUCLEI; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; NUCLEI; ODD-EVEN NUCLEI; ORGANS; PHYSIOLOGY; RADIOISOTOPE SCANNING; RADIOISOTOPES; SECONDS LIVING RADIOISOTOPES; THALLIUM ISOTOPES; 550601* - Medicine- Unsealed Radionuclides in Diagnostics; 550602 - Medicine- External Radiation in Diagnostics- (1980-)

Citation Formats

Toyama, S., Suzuki, K., Takahashi, T., and Yamashita, Y. Myocardial infarction size and location: a comparative study of epicardial isopotential mapping, thallium-201 scintigraphy, electrocardiography and vectorcardiography. United States: N. p., 1987. Web. doi:10.1016/S0022-0736(87)80017-1.
Toyama, S., Suzuki, K., Takahashi, T., & Yamashita, Y. Myocardial infarction size and location: a comparative study of epicardial isopotential mapping, thallium-201 scintigraphy, electrocardiography and vectorcardiography. United States. doi:10.1016/S0022-0736(87)80017-1.
Toyama, S., Suzuki, K., Takahashi, T., and Yamashita, Y. Wed . "Myocardial infarction size and location: a comparative study of epicardial isopotential mapping, thallium-201 scintigraphy, electrocardiography and vectorcardiography". United States. doi:10.1016/S0022-0736(87)80017-1.
@article{osti_5841438,
title = {Myocardial infarction size and location: a comparative study of epicardial isopotential mapping, thallium-201 scintigraphy, electrocardiography and vectorcardiography},
author = {Toyama, S. and Suzuki, K. and Takahashi, T. and Yamashita, Y.},
abstractNote = {Based on epicardial isopotential mapping (the Ep Map), which was calculated from body surface isopotential mapping (the Body Map) with Yamashita's method, using the finite element technique, we predicted the location and size of the abnormal depolarized area (the infarcted area) in 19 clinical cases of anterior and 18 cases of inferoposterior infarction. The prediction was done using Toyama's diagnostic method, previously reported. The accuracy of the prediction by the Ep Map was assessed by comparing it with findings from thallium-201 scintigraphy (SCG), electrocardiography (ECG) and vectorcardiography (VCG). In all cases of anterior infarction, the location of the abnormal depolarized areas determined on the Ep Map, which was localized at the anterior wall along the anterior intraventricular septum, agreed with the location of the abnormal findings obtained by SCG, ECG and VCG. For all inferoposterior infarction cases, the abnormal depolarized areas were localized at the posterior wall and the location also coincided with that of the abnormal findings obtained by SCG, ECG and VCG. Furthermore, we ranked and ordered the size of the abnormal depolarized areas, which were predicted by the Ep Map for both anterior and inferoposterior infarction cases. In the cases of anterior infarction, the order of the size of the abnormal depolarized area by the Ep Map was correlated to the size of the abnormal findings by SCG, as well as to the results from Selvester's QRS scoring system in ECG and to the angle of the maximum QRS vector in the horizontal plane in VCG.},
doi = {10.1016/S0022-0736(87)80017-1},
journal = {J. Electrocardiol.; (United States)},
number = ,
volume = 20:3,
place = {United States},
year = {1987},
month = {7}
}