Addressing wave propagation phenomena, this session examines acoustic wave theory, waveguides, and metamaterials for controlling wave behavior. Discussions will cover acoustic imaging, wavefront manipulation, and applications in ultrasonic sensing and medical diagnostics. Wave propagation studies are crucial for understanding sound transmission, signal processing, and designing acoustic devices with enhanced performance characteristics. By discussing theoretical models and experimental findings, this session aims to foster interdisciplinary collaboration between physicists, engineers, and biomedical researchers, accelerate innovations in acoustic technologies, and improve healthcare diagnostics through advanced acoustic imaging techniques.