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Framställning och analys av CTG med EKG-registrering från djurmodell
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Biomedical Engineering and Health Systems.
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Biomedical Engineering and Health Systems.
2022 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesisAlternative title
CTG Representation and Analysis with ECG Recording from Animal Model (English)
Abstract [sv]

Kardiotokografi (CTG) används idag under graviditet och förlossning för att övervaka fostrets hjärtfrekvens i förhållande till livmoderns värkar. Kurvan som erhålls av CTG-apparaten utvärderas av barnmorskan eller läkaren för patologiska mönster. Om CTG-kurvan är för avvikande kan det finnas misstanke om att fostret inte får tillräckligt med syre i livmodern. Dessa avvikelser är dock inte alltid ett tecken på att fostret inte mår bra vilket försvårar tolkningen av kurvorna för personalen. I detta arbete skapades en CTG-kurva utifrån en EKG-registrering gjort på ett lamm för att undersöka om metoden ger en tydlig CTG-kurva. Sedan analyserades kurvan för eventuella patologiska mönster. Resultatet blev en CTG-kurva med avvikelser. De patologiska mönster relaterade till variablerna basal hjärtfrekvens, acceleration och deceleration som förekom i hjärtfrekvenskurvan kunde återges i en graf med tillfredsställande kvalitet.

Abstract [en]

Cardiotocography (CTG) is used today during pregnancy and labour to monitor the fetal heartbeat in relation to uterine contractions. The graph obtained by the CTG machine is evaluated by the midwife or doctor for pathological patterns. If the CTG graph is too abnormal, there may be a suspicion that the fetus is not getting enough oxygen in the uterus. However, these abnormalities are not always a sign that the fetus is not feeling well, which makes the interpretation of CTG graphs difficult for the medical personnel. In this paper, a CTG graph was created based on an ECG recording taken on a lamb in order to investigate whether this method gives a clear CTG graph. The graph was then analyzed for any pathological patterns. The result was a CTG graph with deviations. The pathological patterns relating to the variables baseline heart rate, acceleration and deceleration that appeared in the heart rate curve could be represented in a graph with satisfactory quality. 

Place, publisher, year, edition, pages
2022. , p. 48
Series
TRITA-CBH-GRU ; 147
Keywords [en]
CTG, ECG, signal processing, heart rate, acceleration, deceleration, baseline
Keywords [sv]
CTG, EKG, signalbehandling, hjärtfrekvens, acceleration, deceleration, baslinje
National Category
Other Medical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-321344OAI: oai:DiVA.org:kth-321344DiVA, id: diva2:1710378
External cooperation
Karolinska Universitetssjukhuset
Subject / course
Medical Engineering
Educational program
Master of Science in Engineering - Medical Engineering
Supervisors
Examiners
Available from: 2022-11-15 Created: 2022-11-12 Last updated: 2022-12-12Bibliographically approved

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