scope:

NPR-IEC/TS 62556 is applicable to high intensity therapeutic ultrasound (HITU) devices, specifying: - relevant parameters for quantifying the field; - measurement methods at relatively low output levels and methodology for extrapolating these to higher therapeutic level fields; - consideration of sidelobes and pre-focal maxima; - parameters relevant to HITU transducers of different construction and geometry, including non-focusing, focusing with or without lenses, collimated, diverging and convergent transducers, multi-element transducers, scanning transducers and multiple sources. This technical specification is intended to support the ultrasonic measurement requirements given in IEC 60601-2-62. These specifications would have use in quality assurance, safety testing, and the standardization of communications regarding the clinical performance of HITU systems. Where possible, this technical specification incorporates specifications from other related standards.