Document Detail


Magnetocardiograms in clinical medicine: unique information on cardiac ischemia, arrhythmias, and fetal diagnosis.
MedLine Citation:
PMID:  15704657     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Cardiac diseases are the leading cause of death in population. Diagnostic tests to detect cardiac dysfunction at an early stage of the disease are desirable. The major focus has been centered on tests evaluating the perfusion of the heart with imaging techniques or detecting alterations in electrical or mechanical function of the heart. The heart generates magnetic fields that can be detected by body surface mapping utilizing super conducting quantum interference device sensors giving magnetocardiograms (MCGs). The advantages of MCG over traditional electrocardiograms (ECGs) are increased sensitivity to small signals and lack of conductivity in body tissues, presentation of direct component signals and primary currents. This review will highlight the basic principles and recent advantages of MCGs, and the application of MCG in clinical diagnosis, especially in cases whose ECGs are non-diagnostic or not specific, such as detecting baseline shift in ischemic heart disease, noninvasive His potential recording, detection of arrhythmic mechanism defining reentrant circuits vs non reentrant mechanism, diagnosis of fetal arrhythmias and prolongation of QT interval. Areas of future basic and clinical research are also discussed.
Authors:
Satsuki Yamada; Iwao Yamaguchi
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Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Internal medicine (Tokyo, Japan)     Volume:  44     ISSN:  0918-2918     ISO Abbreviation:  Intern. Med.     Publication Date:  2005 Jan 
Date Detail:
Created Date:  2005-02-11     Completed Date:  2005-05-03     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  9204241     Medline TA:  Intern Med     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  1-19     Citation Subset:  IM    
Affiliation:
Medical Science for Control of Pathological Processes, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba.
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MeSH Terms
Descriptor/Qualifier:
Arrhythmias, Cardiac / diagnosis*
Body Surface Potential Mapping*
Cardiography, Impedance
Electric Conductivity
Electrocardiography
Fetal Diseases / diagnosis
Heart Diseases / diagnosis*
Humans
Magnetics
Myocardial Ischemia / diagnosis*
Prenatal Diagnosis
Sensitivity and Specificity
Tachycardia / diagnosis

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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