M. Sc. Lukas Elsner Room B - Audiolab Kaiserstraße 2, 24143 Kiel, Germany Phone: +49 431 880-6141 E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. ORCID:  0009-0008-9352-1927 Google scholar: Link

Research: Magnetoelectric Sensor Systems for Cardiologic Applications

The electrocardiogram (ECG) has been the medical standard for generating information about the electrical functioning of the heart for more than a century. It is performed based on a wide range of indications such as suspected myocardial infarction or arrhythmias and plays an important role for diagnosis. However, its comparatively low spatial resolution limits the potential for exact anatomical localization of tissue scaring as a cause of arrhythmias. At present, this localization still requires invasive cardiac surgery. The main endeavour of this research project is to develop a non-invasive alternative using magnetoelectric measurements.

A combination of magneto- and electrocardiogram with multiple established sensors as well as sensors developed is used to generate the required measurement data from patients. Ultimately, both the forward modelling of magnetic and electric fields caused by electromagnetic activity during cardiac cycles as well as the inverse problem must be solved to identify affected tissue.

For this purpose, a real-time capable state-space model for spatio-temporal current density estimation is developed based on voxelization of the heart. An a priori model is created based on time-invariant data from CT, MRI and electromagnetic signals and is refined through optimization, utilizing computationally cheap gradient descent methods.

Related topics:

• Modelling, simulation and measurement of biomagnetic processes
• Optimization
• Machine learning
• State-space modelling and Kalman Filter

Further interests:

• Software engineering
• Industrial and medical robotics
• Model predictive and optimal control
• 3D modeling

Short CV

Publications