Automated measurement of left ventricular ejection time via contactless suprasternal notch laser vibrometry.

Jonas Gonzalez-Billandon¹, Matilda Andersson², Benjamin Waubert², Anders Ekman², Lisa Bergin², Linette Hartzell², Johan Sahlén², Simon Gustafsson², Yuan Tan², Andreea Valdman², Mattias Windå², Mattias Nilsson², Jonas Spaak³, Henrik Hellqvist^2,3

¹Neko Health, Stockholm, Sweden. jonas.gonzalez@nekohealth.com.

²Neko Health, Stockholm, Sweden.

³Division of Cardiovascular Medicine, Department of Clinical Sciences, Danderyd Hospital, Karolinska Institutet, Stockholm, Sweden.

PubMed PMC DOI PDF

Abstract

Left Ventricular Ejection Time (LVET) is a sensitive indicator of early cardiac dysfunction, yet its routine use in first-line population screening is hindered by the operational and time demands of operator-dependent modalities like echocardiography. In this study, we introduce a scalable, contactless approach using laser Doppler vibrometry (LDV) signals targeted at the suprasternal notch (SSN) t…

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