Longitudinal modifications of T-loop morphology

Author

Bortolan, G. ; Bressan, M. ; Christov, I.

Author_Institution

LADSEB, CNR, Padova, Italy

fYear

2002

fDate

22-25 Sept. 2002

Firstpage

685

Lastpage

688

Abstract

Serial analysis is performed to evaluate longitudinal modifications of electrocardiographic parameters concerning morphology variations of repolarization phase, using the vectorcardiogram (VCG). The orthogonal Frank leads were synthesized from the standard 12 lead ECG. For this purpose, five parameters were obtained from the VCG with two different methods of considering the zero point. The population based ECG-ILSA database (Italian Longitudinal Study on Aging) was used. All the patients present both in t₁ and t2=t1+5 years were considered, and those classified as healthy (147), with cardiac diseases (77), with hypertension (219), with angina pectoris (44) and with MI (51) were included in this study. The observed results show a stability T-loop morphology measurements in a temporal interval of 5 years. In addition, the Angina Pectoris group, characterized by a high "clinical instability" showed the most significant longitudinal modifications.

Keywords

electrocardiography; medical signal processing; ECG; Italian Longitudinal Study on Aging; T-loop morphology; VCG; angina pectoris; cardiac diseases; clinical instability; electrocardiographic parameters; hypertension; longitudinal modifications; morphology variations; orthogonal Frank leads; repolarization phase; vectorcardiogram; Aging; Azimuth; Biomedical engineering; Biomedical measurements; Cardiac disease; Cardiology; Databases; Electrocardiography; Hypertension; Morphology;

fLanguage

English

Publisher

ieee

Conference_Titel

Computers in Cardiology, 2002

ISSN

0276-6547

Print_ISBN

0-7803-7735-4

Type

conf

DOI

10.1109/CIC.2002.1166865

Filename

1166865