Technologies

Introduction

Medical ultrasound equipment is evaluated according to the acoustical parameters set by the standard during its manufacture. The standard ensures that the acoustic emissions within the diagnostic range are not harmed by the thermal effects and that the therapeutic range of heating and/or ablation is controlled in accordance with a medical prescription. The transducer has a high incidence of defects due to greater exposure to shock and misuse during its lifetime. In the diagnostic instrument, the defective transducer reduces the resolution of the image and penetrates it. The error of Doppler blood velocity calculation is caused by the increase of background noise. And could cause warming damage. More frequent assessments of transducers are needed to ensure patient safety and, despite standard predictions, no national or international regulatory body has imposed or recommended such an assessment.