As originally asked by Tapan Mukerji.

Is there a proven technology available for ultrasonic thermometry, e.g. measuring tissue temperature by ultrasonic wave or other noninvasive method?

Tapan Mukerji
Medical Device/Digital Health Business Development, Start-Up Advisory Services, US and India
Thanks. Can you please point me to a web site/public domain information available?

Jerrold Shapiro
President and CEO, Fem-Medical LLC
Infrared imaging is often used for this. In one application, well vascularized tumors were able to maintain their temperature as the surrounding tissue was cooled towards room temperature, making them visible. This has been used to detect breast carcinoma.