The Potential of Terahertz Technology to Revolutionize Cardiac Healthcare

Advancements in wireless communication and nanotechnology are enabling a new healthcare era by bringing nanodevices that are worn and implanted in the human body into the realm of possibility for continuous health monitoring and early disease detection. Among human organs, the heart is especially complex and vulnerable to sudden, life-threatening events, therefore making continuous monitoring crucial. This paper investigates the feasibility of terahertz communication in real-time heart monitoring. A 2D COMSOL Multiphysics<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">®</sup> model was developed to simulate the interaction between terahertz radiation and the heart. Our findings demonstrate that a terahertz wireless link between an implanted leadless pacemaker and an external device is technically feasible. While terahertz radiation has a higher thermal impact than optical frequencies, pulsed-time transmission can significantly reduce this effect. This study paves the way for a new era of non-invasive, continuous heart monitoring using terahertz technology.