Therapeutic ultrasound: myths and truths for non-portable in-clinic and portable home use ultrasound

Abstract

Therapeutic ultrasound was first discovered prior to World War II when German scientists were experimenting with sonar in submarines and found an interesting biophysical effect. When sound was released from the vessel to detect objects in the surrounding water, the scientists noted that fish absorbed sound waves and died. Thus, the idea of ultrasound producing biological effects was born.