US 12,257,092 B2
Method to superimpose rendering over spine hardware implants on images produced by Cbct scanner system
Rasika A. Parkar, Wayland, MA (US); Michael P. Marrama, Ayer, MA (US); Rejeesh Radhakrishnan, Leominster, MA (US); and Edward B. Lipes, Fort Collins, CO (US)
Assigned to Medtronic Navigation, Inc., Lafayette, CO (US)
Filed by Medtronic Navigation, Inc., Louisville, CO (US)
Filed on Oct. 17, 2022, as Appl. No. 17/967,491.
Prior Publication US 2024/0122562 A1, Apr. 18, 2024
Int. Cl. G06T 15/00 (2011.01); A61B 6/03 (2006.01); A61B 6/46 (2024.01); G06T 19/20 (2011.01)
CPC A61B 6/465 (2013.01) [A61B 6/032 (2013.01); A61B 6/463 (2013.01); A61B 6/466 (2013.01); G06T 15/00 (2013.01); G06T 19/20 (2013.01); G06T 2200/04 (2013.01); G06T 2200/24 (2013.01); G06T 2210/41 (2013.01); G06T 2211/40 (2013.01); G06T 2219/2004 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method for identifying an implant in an image of an anatomy shown on a display screen, the method comprising:
receiving, in a processing system, computed tomography (CT) slices of the anatomy;
displaying the image of the anatomy on the display screen based on the CT slices, the image including an artifact portions due to the implant;
prompting a user to enter parameters of the implant into the processing system by way of a user interface;
displaying a rendering of the implant on the display screen along with the image, the rendering sized and shaped to correspond to the implant;
prompting the user to position the rendering of the implant at an accurate position on the artifact portions corresponding to an actual position of the implant in the anatomy that includes portions of the artifact portions; and
at least one of:
alerting the user when the rendering is positioned by the user at an inaccurate position relative to the artifact portions that is outside of a predetermined distance from the accurate position, and
prompting the user to reposition the rendering from the inaccurate position; or
alerting the user when the rendering is positioned by the user to the accurate position including within the predetermined distance of the accurate position, and
after the rendering has been positioned to the accurate position by the user, reconstructing the image to replace the artifact portions with the rendering in the accurate position;
wherein the predetermined distance is +/−2 mm for a rendered screw top from a screw tip of the implant, and +/−10° for a rendered screw head from a screw head of the implant.