What is the term used for ultrasound that causes injurious thermal effects on tissues?

The term for ultrasound that causes injurious thermal effects on tissues is "Thermal ultrasound." This technique utilizes sound waves to produce heat within the tissue, which can be beneficial for therapeutic purposes but also poses risks if not used correctly. Heat generated by ultrasound can lead to damage in sensitive tissues if exposure exceeds safe limits, such as in the case of prolonged or excessive intensity applications.

Other options, like "Ultrasonic radiation," refer generally to sound waves at frequencies above human hearing, but don’t specifically encompass the thermal effects seen in therapeutic ultrasound. "Echo ultrasound" denotes the principle by which ultrasound waves reflect off tissues to create images rather than focusing on their thermal effects. "Sonographic exposure" describes the application of ultrasound for imaging without directly implying thermal injuries, as it primarily relates to the assessment of internal structures rather than thermal impacts.

Understanding these terms helps clarify the significance of thermal ultrasound, especially in therapeutic contexts where monitoring temperature and duration of application is crucial to avoid potential tissue damage.