Extracorporeal shock wave therapy: Sound waves are directed on the pain region for Persistent plantar fasciitis to promote healing Ultrasound imaging is chosen because the plantar fascia is definitely visualised, comparable to superficial tendons. This is a beneficial diagnostic modality for plantar fasciitis as it provides real-time dynamic visualisation though https://www.theorthopaedicandpainpractice.com/why-is-the-bottom-of-my-heel-painful/