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ULTRASOUND-IMAGE-GUIDE SYSTEM AND VOLUME-MOTION-BASE CALIBRATION METHOD

  • US 20140100452A1
  • Filed: 06/21/2012
  • Published: 04/10/2014
  • Est. Priority Date: 06/27/2011
  • Status: Abandoned Application
First Claim
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1. An ultrasound-image-guided system, the system comprising:

  • one or more ultrasound probes (20) operable to generate image volumes (13i, 13j) of an anatomical object (10);

    an adapter device (50) comprising at least one position sensor (30), the adapter device (50) being, for one use event, attachable to one of the ultrasound probes (20), wherein the at least one position sensor (30) is at a variable position with respect to the one or more ultrasound probes (20) from one use event to another use event;

    a tracking device (51) operable to generate tracking data (32) representative of a tracking of the at least one position sensor (30) within a coordinate system (11);

    an ultrasound imaging device (21) operable to generate imaging data (22) of the anatomical object (10) based on the image volumes (13i, 13j); and

    a computation device (40) operable to automatically self-calibrate, for each use event, the imaging data (22) with respect to the coordinate system (11) of the at least one position sensor (30) by calculating a calibration matrix (51) using an image based volume motion (VMIB) and a tracking based volume motion (VMTB),the image based volume motion (VMIB) representing an image motion of at least two image volumes (13i, 13j) derived from the imaging data (22),the tracking based volume motion (VMTB) representing a tracking motion of the image volumes (13i, 13j) derived from the tracking data (32).

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