Ultrasound catheter calibration with enhanced accuracy

Details Ultrasound catheter calibration with enhanced accuracy Ultrasound catheter calibration with enhanced accuracy

A - Human Necessities

61

B

A61B 8/00 (2006.01) A61B 8/12 (2006.01) G01N 29/30 (2006.01) A61M 25/095 (2006.01)

Patent

CA 2619810

An apparatus for calibration of a probe that includes a magnetic position sensor and an acoustic imaging device has a rigid mechanical framework. One or more field generators, fixed to the framework, generate a magnetic field of known spatial characteristics. An acoustic target assembly includes a phantom coupled to a motion mechanism, which is arranged to move the phantom in a known orbit relative to the framework. A jig, fixed to the framework, holds the probe within the magnetic field of the one or more field generators, in an orientation suitable for the imaging device to image the phantom. A processor processes position and image signals from the probe in order to calibrate coordinates of the imaging device relative to the position sensor.

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