NDLI: A spatial study of the ST segment

Content Provider	IEEE Xplore Digital Library
Author	Gonzalez, R. Canizares, M. Rodriguez, G. Meissimilly, G.
Copyright Year	2003
Description	Author affiliation: Medical Devices Div., Central Inst. of Digital Res., Havana, Cuba (Gonzalez, R.; Canizares, M.; Rodriguez, G.; Meissimilly, G.)
Abstract	A new method for real-time spatial ST segment evaluation was developed and preliminarily tested with three stress electrocardiograms and five long-term rest electrocardiograms. The classic function of spatial velocity was modified in order to improve the performance of the QRS complexes onset and offset identification; this function was computed for three groups of leads and identification thresholds were set up for each group. QRS complexes were classified as non-premature and premature according to the complex width and the RR interval duration. To avoid wrong ST measurements on the first branch of the T wave, an inverse relationship was set between the average RR interval duration and the distance since the J-point to the ST segment middle point. Vectors associated to leads II, V1 and V5 were considered like the axes of an orthogonal system and the ST deviation for each lead like the projections of the ST vector. The vector module was computed for non-premature complexes according to the classic expression and its value showed an earlier sensitivity to ST pathological changes than the traditional lead by lead study. The proposed method was tested with 10758 beats, all of them were detected and never a premature beat was misclassified. ST measurements never were made in the first branch of the T wave.
Sponsorship	Whitaker Found
Starting Page	86
Ending Page	89
File Size	361597
Page Count	4
File Format	PDF
ISBN	0780377893
ISSN	1094687X
DOI	10.1109/IEMBS.2003.1279516
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-09-17
Publisher Place	Mexico
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Stress Electrocardiography Cardiac disease Band pass filters Medical tests Pathology System testing Bicycles Real time systems Standards development
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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