title: Effect of interposed skin at Doppler flow estimation at 5 and 10 MHz. With a description of a calibration device.
abstract: Flow measurements with high ultrasound frequencies (Doppler technique) can be used at quantitative estimations of flow. A calibrator for Doppler equipments is presented. The effect of skin as interposed material with 10 MHz and 5 MHz is discussed as are limitations in the apparatus itself especially when using 10 MHz ultrasound.
mesh_terms: D000818:Animals; D001314:Auscultation / Q000295:instrumentation; D001783:Blood Flow Velocity; D002138:Calibration / Q000295:instrumentation; D006801:Humans; D011817:Rabbits; D012039:Regional Blood Flow; D012867:Skin / Q000098:blood supply; D014463:Ultrasonography