Therapeutic ultrasound
PTB-News 2.2017
02.05.2017
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)
Advantages
saves time for calibration/constancy test
precise spatial resolution of the heat input
enables improved quality assurance