Zaznavanje aktivnosti Hisovega snopa v znotrajsrčnem elektrogramu

AZDEJKOVIĆ, MARIJA (author), Jarm, Tomaž (mentor)

V tem diplomskem delu se bomo seznanili z osnovami anatomije in fiziologije električnega prevodnega sistema v človeškem srcu ter z umestitvijo in vlogo Hisovega snopa v njem. Seznanili se bomo tudi z načinom zajema unipolarnih in bipolarnih signalov električne aktivnosti srca – elektrokardiograma (EKG), ter znotrajsrčnega elektrograma (iEGM). Vse zbrane podatke za obdelavo tovrstnih signalov (s poudarkom na specifiki aktivnosti Hisovega snopa) bomo uporabili za razvoj in preizkus algoritma za detekcijo aktivnosti Hisovega snopa. Naloga tega diplomskega dela je detekcija trenutka aktivacije Hisovega snopa v posnetku znotrajsrčnega elektrograma (iEGM). Aktivnost Hisovega snopa ne moremo videti v katerem koli posnetku iEGM – vidi se samo v tistem, ki ga posnamemo v neposredni bližini Hisovega snopa znotraj srca. Pri tem načinu zajemanja iEGM lahko pride do različnih problemov, ker Hisov snop predstavlja majhen skup celic, in je njegova aktivnost zelo kratek pojav. Poleg tega je v tem signalu vedno prisotna električna aktivnost drugih delov srca, kar predstavlja motnjo in izziv za detekcijo aktivnosti Hisovega snopa.

• Language: Slovenian
• Keywords: električna aktivnost srca, elektrokardiogram (EKG), znotrajsrčni elektrogram (iEGM), Hisov snop, QRS detekcija, obdelava signalov, algoritem
• Work type: Bachelor thesis/paper
• Organization: FE - Faculty of Electrical Engineering
• Year: 2022
• PID: 20.500.12556/RUL-140400
• COBISS.SI-ID: 121668611
• Publication date in RUL: 14.09.2022

Secondary language

• Language: English
• Title: Detection of the His bundle activity in intracardiac electrogram

Abstract

The thesis addresses basics of anatomy and physiology of electrical conduction system in the human heart and the placement and the role of the His bundle in it. We will also get acquainted with the method of capturing unipolar and bipolar signals of electrical activity of the heart - the electrocardiogram (ECG) and the intracardiac electrogram (iEGM). All data collected for the processing of such signals (with emphasis on the specifics of His bundle activity) will be used to develop and test an algorithm for detecting His bundle activity. The task of this thesis is the detection of the activation moment of the His bundle in the recording of the intracardiac electrogram (iEGM). His bundle activity cannot be seen in just any iEGM recording – it is only seen in the one taken in close proximity to the His bundle inside the heart. Various problems can arise with this method of iEGM capture because the His bundle represents a small set of cells and its activity is a very brief phenomenon. Electrical activity of other parts of the heart also appears in this signal, which is a disturbance and makes the detection of His bundle activity a challenge.

• Keywords: electrical activity of the heart, electrocardiogram (ECG), intracardiac electrogram (iEGM), bundle of His, QRS detection, signal processing, algorithm