Solid Hydrogel Couplants for Skin Superficial Blood Flow Imaging with Super‐Resolution Ultrasound

The SA-PAM hydrogel coupling pad offers a novel solution for ultrasound imaging of superficial skin blood flow, providing high-resolution vascular imaging of the skin and reduced image distortion caused by probe pressure. This strategy has promising potential for early detection of diabetes-related microvascular lesions and for the precise monitoring of inflammatory skin diseases, thereby it would support clinical treatment planning and therapeutic evaluation.