Method for detecting the three-dimensional position of a...

Details Method for detecting the three-dimensional position of a... Method for detecting the three-dimensional position of a...

2006-05-23

2006-05-23

Casler, Brian L. (Department: 3737)

Surgery

Diagnostic testing

Detecting nuclear, electromagnetic, or ultrasonic radiation

C600S427000, C606S130000

Reexamination Certificate

active

07050844

ABSTRACT:
In a method for detecting the three-dimensional position of a medical examination instrument introduced into an examination region of a subject and an apparatus including a C-arm system for registering radiation images, two-dimensional angiography projection images of the examination region are registered for later three-dimensional volume reconstruction of the examination region. After introduction of the instrument, at least one two-dimensional projection image pair of the examination region with image planes residing at an angle relative to one another is registered. The spatial coordinates of a selected point of the instrument shown in the projection images are identified in a common coordinate system for the angiography projection images and the projection images. Two-dimensional projection image pairs are registered in succession for the continuous presentation of the selected point in the display of the aforementioned volume reconstruction.

REFERENCES:
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patent: 6104780 (2000-08-01), Hanover et al.
patent: 6149592 (2000-11-01), Yanof et al.
patent: 6317621 (2001-11-01), Graumann et al.
patent: 6370417 (2002-04-01), Horbaschek et al.
patent: 6542770 (2003-04-01), Zylka et al.

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