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Therapeutic ultrasound

PTB-News 2.2017
Especially interesting for

medical therapy

routine check of ultrasonic equipment

Thermochromic image of a therapeutic ultrasonic field at various intensity levels

Ultrasound is used as a therapeutic modality in medicine for various applications including the removal of kidney stones or tumors. A new procedure developed by PTB now allows a traceable spatial calibration of, e.g., high-intensity therapeutic ultrasonic equipment. Based on thermochromic foils which change color in the event of heating induced by ultrasound, it is possible to determine instrument-specific calibration factors in a multiple-step process, but with little effort. (Technology offer 0426)


saves time for calibration/constancy test

precise spatial resolution of the heat input

enables improved quality assurance