A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 8/00 (2006.01) A61B 8/12 (2006.01) A61M 25/095 (2006.01) G01N 29/30 (2006.01)
Patent
CA 2619801
A calibration apparatus includes a motion assembly, which is arranged to move an imaging probe through a calibration point having known coordinates. The imaging probe includes an ultrasound transducer and a position sensor for acquiring concurrently a first sequence of ultrasound images and a second sequence of position measurements. The apparatus further includes a marking circuit, which is arranged to mark an ultrasound image that is acquired by the ultrasound transducer in the first sequence when the imaging probe is at the calibration point. A processor is arranged to calibrate a time offset between the first and second sequences by associating the marked ultrasound image in the first sequence with a position measurement in the second sequence whose coordinates match the coordinates of the calibration point.
Biosense Webster Inc.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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