Methods Inf Med 1990; 29(04): 393-402
DOI: 10.1055/s-0038-1634802
ECG Interpretation Systems
Schattauer GmbH

Methodology of ECG Interpretation in the Lyon Program

P. Arnaud
1   Institut National de la Santà et de la Recherche Màdicale - U. 121, Hôpital Cardiologique, Lyon, France
,
P. Rubel
1   Institut National de la Santà et de la Recherche Màdicale - U. 121, Hôpital Cardiologique, Lyon, France
,
D. Morlet
1   Institut National de la Santà et de la Recherche Màdicale - U. 121, Hôpital Cardiologique, Lyon, France
,
J. Fayn
1   Institut National de la Santà et de la Recherche Màdicale - U. 121, Hôpital Cardiologique, Lyon, France
,
M.C. Forlini
1   Institut National de la Santà et de la Recherche Màdicale - U. 121, Hôpital Cardiologique, Lyon, France
› Institutsangaben
The authors are indebted to J. Carew for editorial assistance in the preparation of the English manuscript and M. Th. Rameaux for secretarial assistance.
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Publikationsverlauf

Publikationsdatum:
06. Februar 2018 (online)

Abstract

To provide an in-depth interpretation of the spatial QRS-T contour, we established a set of vectorcardiographic parameters computed octant by octant. For each statement the criteria constitute a model which is closely related to pathophysiological patterns. The diagnostic strategy is of the heuristic type. For each diagnosis a table lists several criteria providing both specific and differential diagnostic information. Inter-table competition is handled by specific logic. The program classifies diagnoses according to the number of non-satisfied criteria. Three versions are available including 124,51 and 7 diagnoses, respectively. The first, intended for interpretation of complex situations, has given satisfactory results in such situations. Rhythm analysis is performed from 8-second recordings.

All functions - acquisition, quality control, choice of a dominant complex, wave recognition, parameter extraction, interpretation, editing, storage -are integrated into a mobile cart. A complementary program performs serial analysis of successive tracings. It highlights with great precision morphological changes in the spatial loops and interval variations.

 
  • REFERENCES

  • 1 Rubel P, Morlet D, Arnaud P. et al. The Lyon microprocessor-based VCG analysis system. In: Willems JL, van Bemmel JH, Zywietz C. eds. Computer ECG Analysis: Towards Standardization. Amsterdam: North-Holland Publ Comp; 1986: 43-8.
  • 2 Morlet D. Contribution è I’ Analyse Auto-matique des Electrocardiogrammes: Algo-rithmes de Localisation, Classification et Delimitation Precise des Ondes dans le Systeme de Lyon (Thàse de Doctorat: N° 86 ISAL 0005 INSA). Lyon, 1986
  • 3 Morlet D, Rubel P, Arnaud P, Forlini MC. Classification des complexes QRS pour l’analyse du rythme cardiaque sur une courte duràe. Màthodes et evaluation, Inn Techn Biol Màd 1983; 04: 255-66.
  • 4 Talmon JL, Kors JA, van Bemmel JH. Adaptative Gaussian filtering in routine ECG/VCG analysis. IEEE Trans ASSP 1986; 34: 527-34.
  • 5 Morlet D, Rubel P, Arnaud P, Willems JL. An improved method to evaluate the precision of computer ECG measurement programs. Int J Biomed Comput 1988; 22: 199-216.
  • 6 Willems JL, Arnaud P, van Bemmel JH. et al. Establishment of a reference library for evaluating computer ECG measurement programs. Comp Biomed Res 1985; 18: 439-57.
  • 7 Willems JL, Arnaud P, van Bemmel JH. et al. Assessment of the performance of electrocardiographic computer programs with the use of a reference database. Circulation 1985; 71: 523-34.
  • 8 Rubel P, Ayad B. The true boundary recognition power of multidimensional detection functions. An optimal comparison. In: Willems JL, van Bemmel JH, Zywietz C. eds. Computer ECG Analysis: Towards Standardization. Amsterdam: North-Holland Publ Comp; 1986: 97-103.
  • 9 Bockmann RD, Dudeck J, Weber G, Kluss D. Parametrisation of the templates for the detection of QRS-onset and -offset. Comp in Cardiology 1977; 601-4.
  • 10 Arnaud P. Information contained in vectorcardiograms. Procedures of analysis and characterization of the QRS loop. Cardiologia 1966; 48: 9-20.
  • 11 Arnaud P. Quantitative vectorcardiography. A spatial approach as the basis of a new diagnostic logic. In: van Dam RT, van Oosterom A. eds. Electrocardiographic Body Surface Mapping. Dordrecht: Marti-nus Nijhoff; 1986: 225-32.
  • 12 Arnaud P, Rubel P. The Lyon ECG Program. In: van Bemmel JH, Willems JL. eds. Trends in Computer-Processed Electrocardiograms. Amsterdam: North-Holland Publ Comp; 1977: 175-81.
  • 13 Rubel P, Arnaud P, Prevot D. Systeme d’aide è la dàcision. Application è I’inter-pretation automatique des vectocardio-grammes. Int J BioMed Comp 1975; 06: 193-211.
  • 14 Arnaud P, Fayn J, Tadary B, Frachon M, Rubel P. Evaluation of QRS interpretation by the Lyon VCG program in cases having 2 or 3 associated diagnoses. In: Willems JL, van Bemmel JH, Zywietz C. eds. Computer ECG Analysis: Towards Standardization. Amsterdam: North-Holland Publ Comp; 1986: 195-201.
  • 15 Willems JL, Abreu-Lima C, Arnaud P. et al. Evaluation of ECG interpretation results obtained by computer and cardiologists. Meth Inform Med 1990; 29: 308-16.
  • 16 Willems JL, Abreu-Lima C, Arnaud P. et al. Effect of combining electrocardiographic interpretation results on diagnostic accuracy. Europ Heart J 1988; 09: 1348-55.
  • 17 Willems JL. A review of computer ECG analysis: time to evaluate and standardize. CRC Crit Rev Med Inform 1987; 01: 165-207.
  • 18 Fayn J. L’Analyse Sàquentielle des Electrocardiogrammes. Une Approche par Comparaison Optimale dTmages Filaires Spatio-Temporelles (These de Doctorat. N° 90 ISAL 0007 INSA). Lyon, 1990
  • 19 Fayn J, Rubel P. CAVIAR, a serial ECG processing system for the Comparative Analysis of VCGs and their Interpretation with Auto-Reference to the patient. J Electrocardiol 1988; 21 (Suppl): 173-6.
  • 20 Fayn J, Rubel P, Arnaud P. A new methodology for optimal comparison of serial vectorcardiograms. In: Ripley KL. ed. Computers in Cardiology. Long Beach Calif: IEEE Computer Society; 1984: 467-70.
  • 21 Rubel P, Fayn J, Arnaud P. et al. New strategies in serial VCG comparison and trend analysis. In: Willems JL, van Bemmel JH, Zywietz C. eds. Computer ECG Analysis: Towards Standardization. Amsterdam: North-Holland Publ Comp; 1986: 323-8.
  • 22 Fayn J, Rubel P, Arnaud P. et al. New serial VCG comparison techniques, application to the detection of myocardial infarction after bypass surgery. In: Ripley KL. ed. Computers in Cardiology. Long Beach Calif: IEEE Computer Society; 1987: 533-6.
  • 23 Rubel P, Fayn J, Forlini MC, Arnaud P. Stability of serial VCG parameters among a normal male population recorded before and after physical training. In: Ripley KL. ed. Computers in Cardiology. Long Beach Calif: IEEE Computer Society; 1988: 239-42.
  • 24 Rubel P, Fayn J, Mohsen N, Girard P. New methods of quantitative assessment of the extent and significance of serial ECG changes of the repolarization phase. J Electrocardiol 1988; 21 (Suppl): 177-82.