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1. WO2020193843 - AN APPARATUS AND A METHOD FOR QT CORRECTION

Publication Number WO/2020/193843
Publication Date 01.10.2020
International Application No. PCT/FI2020/050099
International Filing Date 18.02.2020
Chapter 2 Demand Filed 12.11.2020
IPC
A61B 5/0468 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes; Identification of persons
04Measuring bioelectric signals of the body or parts thereof
0402Electrocardiography, i.e. ECG
0452Detecting specific parameters of the electrocardiograph cycle
0468Detecting abnormal ECG interval
A61B 5/0472 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes; Identification of persons
04Measuring bioelectric signals of the body or parts thereof
0402Electrocardiography, i.e. ECG
0452Detecting specific parameters of the electrocardiograph cycle
0472Detecting abnormal QRS complex
A61B 5/0456 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes; Identification of persons
04Measuring bioelectric signals of the body or parts thereof
0402Electrocardiography, i.e. ECG
0452Detecting specific parameters of the electrocardiograph cycle
0456Detecting R peaks, e.g. for synchronising diagnostic apparatus
CPC
A61B 5/0006
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
0002Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
0004characterised by the type of physiological signal transmitted
0006ECG or EEG signals
A61B 5/0452
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
04Measuring bioelectric signals of the body or parts thereof
0402Electrocardiography, i.e. ECG
0452Detecting specific parameters of the electrocardiograph cycle
A61B 5/0456
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
04Measuring bioelectric signals of the body or parts thereof
0402Electrocardiography, i.e. ECG
0452Detecting specific parameters of the electrocardiograph cycle
0456Detecting R peaks, e.g. for synchronising diagnostic apparatus
A61B 5/0468
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
04Measuring bioelectric signals of the body or parts thereof
0402Electrocardiography, i.e. ECG
0452Detecting specific parameters of the electrocardiograph cycle
0468Detecting abnormal ECG interval ; , e.g. extrasystoles, ectopic heartbeats
A61B 5/0472
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
04Measuring bioelectric signals of the body or parts thereof
0402Electrocardiography, i.e. ECG
0452Detecting specific parameters of the electrocardiograph cycle
0472Detecting abnormal QRS complex ; , e.g. widening
A61B 5/7275
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
72Signal processing specially adapted for physiological signals or for diagnostic purposes
7271Specific aspects of physiological measurement analysis
7275Determining trends in physiological measurement data; Predicting development of a medical condition based on physiological measurements, e.g. determining a risk factor
Applicants
  • TAMPERE UNIVERSITY FOUNDATION SR [FI]/[FI]
Inventors
  • POTAPOV, Ilya
  • RÄSÄNEN, Esa
  • AALTO-SETÄLÄ, Katriina
Agents
  • BERGGREN OY
Priority Data
2019521422.03.2019FI
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) AN APPARATUS AND A METHOD FOR QT CORRECTION
(FR) APPAREIL ET PROCÉDÉ DE CORRECTION DE QT
Abstract
(EN)
A method for QT correction is provided, the method comprising receiving an ECG signal; extracting a plurality of beat-to-beat (RR) intervals; extracting a plurality of QT intervals; computing a first probability distribution for a range of QT values based on the plurality of QT intervals; computing a second probability distribution for a range of QT values based on the plurality of QT intervals and the plurality of RR intervals; solving one or more points, wherein the first probability distribution and the second probability distribution intersect or wherein a difference between the first probability distribution and the second probability distribution is below a pre-defined difference threshold; designating one of one or more QT values corresponding to the one or more points as a corrected QT interval for a given QT interval of the plurality of QT intervals.
(FR)
La présente invention concerne un procédé de correction de QT, le procédé consistant à recevoir un signal d'électrocardiogramme (ECG); à extraire une pluralité d'intervalles de battement à battement (RR); à extraire une pluralité d'intervalles de QT; à calculer une première distribution de probabilités pour une plage de valeurs de QT sur la base de la pluralité d'intervalles de QT; à calculer une seconde distribution de probabilités pour une plage de valeurs de QT sur la base de la pluralité d'intervalles de QT et de la pluralité d'intervalles de RR; à résoudre un ou plusieurs points, la première distribution de probabilités et la seconde distribution de probabilités se croisant ou une différence entre la première distribution de probabilités et la seconde distribution de probabilités étant inférieure à un seuil de différence prédéfini; à désigner l'une d'une ou plusieurs valeurs de QT correspondant au ou aux points comme intervalle de QT corrigé pour un intervalle de QT donné de la pluralité d'intervalles de QT.
Latest bibliographic data on file with the International Bureau