Multiway tachyarrhythmia detection algorithm

N. V. Thakor, A. Natarajan, G. F. Tomaselli

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations


An important problem for the automatic implantable cardioverter-defibrillator is to discriminate ventricular tachycardia (VT) from superventricular tachycardia (SVT), and these arrhythmias from normal sinus rhythm (NSR). The authors present a new multiway sequential hypothesis testing (MSHT) algorithm for simultaneous discrimination of VT, SVT, and NSR. The MSHT algorithm allows explicit specification of false positive and false negative error rates, and a tradeoff between detection time and tolerable error levels. Endocardial atrial and ventricular recordings were obtained from 30 patients, and 17, 8, and 12 episodes of VT, SVT, and NSR, respectively, were evaluated. The error rates were selected so that all the rhythms were accurately discriminated and detection tests never took longer than 8 s for SVT-VT discrimination with average discrimination detection times of 2.9, 4.3, and 1.7 s for NSR, SVT, and VT, respectively. The algorithm discriminated the three rhythms with a sensitivity of 0.95 and specificity of 0.97.

Original languageEnglish (US)
Title of host publicationProceedings - Computers in Cardiology, CIC 1992
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages4
ISBN (Electronic)0818635525, 9780818635526
StatePublished - 1992
Externally publishedYes
Event1992 IEEE Conference on Computers in Cardiology, CIC 1992 - Durham, United States
Duration: Oct 11 1992Oct 14 1992

Publication series

NameProceedings - Computers in Cardiology, CIC 1992


Conference1992 IEEE Conference on Computers in Cardiology, CIC 1992
Country/TerritoryUnited States

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Health Informatics
  • Computer Science Applications
  • Biomedical Engineering


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