Ultrasound catheter calibration with enhanced accuracy

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

2011-08-09

2011-08-09

Chen, Tse (Department: 3777)

Surgery

Diagnostic testing

Detecting nuclear, electromagnetic, or ultrasonic radiation

C600S409000, C600S410000, C324S219000

Reexamination Certificate

active

07996057

ABSTRACT:
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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