Surgery – Diagnostic testing – Detecting nuclear – electromagnetic – or ultrasonic radiation
Reexamination Certificate
2003-03-06
2008-11-25
Casler, Brian L. (Department: 3737)
Surgery
Diagnostic testing
Detecting nuclear, electromagnetic, or ultrasonic radiation
C600S424000, C600S407000
Reexamination Certificate
active
07457658
ABSTRACT:
A computer-implemented software system and method for performing dynamic, three-dimensional reconstruction of a non-linear implanted medical device from biplane x-ray images. A biplane radiographic image of a calibration object is used to compute the relationship between a three-dimensional coordinate system and the two-dimensional coordinate system for each image plane. These relationships are used to superimpose a three-dimensional device model onto each biplane image pair. An iterative, active contour model, initiated by a user-specified curved template, solves for the three-dimensional device centerline coordinates. Device reconstruction is repeated at each time point associated with each image pair. Algorithm output is available for test development, structural analysis or other clinically relevant applications.
REFERENCES:
patent: 5239591 (1993-08-01), Ranganath
patent: 5471535 (1995-11-01), Ikezawa et al.
patent: 5582173 (1996-12-01), Li
patent: 5830145 (1998-11-01), Tenhoff
patent: 5876342 (1999-03-01), Chen et al.
patent: 5983126 (1999-11-01), Wittkampf
patent: 6047080 (2000-04-01), Chen et al.
patent: 6119033 (2000-09-01), Spigelman et al.
patent: 6236875 (2001-05-01), Bucholz et al.
patent: 6249594 (2001-06-01), Hibbard
patent: 2005/0197568 (2005-09-01), Vass et al.
patent: 2005/0215887 (2005-09-01), Ben-Haim et al.
patent: 05054143 (1993-05-01), None
patent: WO 96/39660 (1996-12-01), None
patent: WO 01/1864 (2001-11-01), None
Baxter, WW et al., “In Vivo Finite Element Model-Based Image Analysis of Pacemaker Lead Mechanics,”Medical Image Analysis, vol. 5, p. 255-270 (2001).
Glasson, F.R. et al., “Three-dimensional Regional Dynamics of the Normal Mitral Annulus During Left Ventricular Ejection,”J. Thorac. Cardiovasc. Surg., vol. 111, p. 574-85 (1996).
Kass, M. et al., “Snakes: Active Contour Models,”Int. J. Comp. Vis., vol. 1, p. 321-331 (1988).
MacKay, S.A. et al., “Graphics Methods for Tracking Three-Dimensional Heart Wall Motion,”Comput. Biomed. Res., vol. 15, p. 455-473 (1982).
Baxter, W. et al., “Reconstruction of Annuloplasty Devices in an Ovine Model by Biplane Videoradiography—3D Motion and Finite Element Analysis,” 6th Annual Hilton Head Workshop on Prosthetic Heart Valves, Mar. 8, 2002. Hilton Head, SC, USA.
Casler Brian L.
Medtronic Inc.
Ramirez John F
Soldner Michael C
LandOfFree
Algorithm for accurate three-dimensional reconstruction of... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Algorithm for accurate three-dimensional reconstruction of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Algorithm for accurate three-dimensional reconstruction of... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4026687