Title :
Exercise magnetocardiography in healthy subjects and single vessel coronary artery disease patients
Author :
Takala, P. ; Hänninen, H. ; Montonen, J. ; Mäkijärvi, M. ; Nenonen, J. ; Korhonen, P. ; Oikarinen, L. ; Toivonen, L. ; Katila, T.
Author_Institution :
Lab. of Biomed. Eng., Helsinki Univ. of Technol., Espoo, Finland
Abstract :
Exercise induced ischemia was detected using a novel method for calculating the orientation of magnetic field at ST-segment and T-wave. Magnetocardiographic mapping was performed during supine physical exercise testing in 35 subjects including 23 patients with single vessel coronary artery disease. In 12 healthy controls exercise was found to induce a negative change in magnetic field at the ST-segment and T-wave. This prevented the use of similar amplitude parameters as in electrocardiography for the separation of patients and controls
Keywords :
blood vessels; diseases; magnetocardiography; ST-segment; T-wave; coronary artery disease; exercise test; magnetic field; magnetocardiography; myocardial ischemia; patient diagnosis; Biomedical engineering; Cardiology; Coronary arteriosclerosis; Electrocardiography; Ischemic pain; Laboratories; Magnetic force microscopy; Magnetic separation; Myocardium; Stress;
Conference_Titel :
[Engineering in Medicine and Biology, 1999. 21st Annual Conference and the 1999 Annual Fall Meetring of the Biomedical Engineering Society] BMES/EMBS Conference, 1999. Proceedings of the First Joint
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-5674-8
DOI :
10.1109/IEMBS.1999.802336
