Laser Doppler vibrometry as a noncontact method to detect various degrees of atrioventricular block: a feasibility study.
The vibrocardiography (VBCG) is a laser-based technique to monitor the heart rhythm without any contact to the body. The aim of this study was to evaluate whether the VBCG is able to detect the vibration patterns of the atria.



Simultaneous recordings of the ECG and VBCG in two cohorts were evaluated.



The VBCG delivered a robust vibration pattern of the atrial contraction. A reliable determination of the interval and the different stages of an atrioventricular block was possible.



This is the first study that demonstrates the feasibility of a noncontact registration of the atrial vibration pattern. It enables a reliable determination of the atrioventricular interval. The VBCG can, therefore, serve as full noncontact monitoring.
Städtisches Klinikum Karlsruhe, Moltkestrasse 90, 76133 Karlsruhe, Germany.
Armin
A
Luik
Clausthal University of Technology, Leibnizstraße 2838678, Clausthal, Germany.
Laura
L
Mignanelli
Fraunhofer IOSB, Fraunhoferstraße 1, 76131 Karlsruhe, Germany.
Kristian
K
Kroschel
Städtisches Klinikum Karlsruhe, Moltkestrasse 90, 76133 Karlsruhe, Germany.
Claus
C
Schmitt
Clausthal University of Technology, Leibnizstraße 2838678, Clausthal, Germany.
Christian
C
Rembe
Dipartimento di Ingegneria Industriale e Scienze Matematiche, Università Politecnica delle Marche, Piazza Roma, 22, Ancona, Italy.
Lorenzo
L
Scalise
D016275:Atrial Function / Q000502:physiology*; D054537:Atrioventricular Block / Q000175:diagnosis*; D015331:Cohort Studies; D004452:Echocardiography; D005240:Feasibility Studies; D006801:Humans; D007702:Kinetocardiography / Q000379:methods*; D014732:Vibration
AV block; LDV; heart rhythm monitor; laser Doppler vibrometry; noncontact; vibrocardiography