Prospect of Wearable Ultrasound.

Wearable ultrasound presents a promising technological solution for continuous, noninvasive monitoring of deep-tissue structures and physiological functions, addressing the key limitation of traditional wearable sensors that are largely confined to superficial signal detection. In recent years, wearable ultrasound transducers have advanced from early flexible and stretchable array designs to high-performance platforms that combine rigid functional components with flexible architectures. This hybrid design enables more stable coupling with the body surface and supports multimodal imaging capabilities. These developments highlight the strong potential of wearable ultrasound for long-term physiological monitoring and personalized medicine. However, several critical challenges remain before fully continuous and practical applications can be realized. This perspective reviews recent progress in wearable ultrasound technology and discusses future directions, such as the development of compact wireless systems, the incorporation of artificial intelligence, the expansion to 2-dimensional array configurations, and the creation of multimodal functional platforms.