US 12,167,910 B2
Method, system and apparatus for image-guided insertion of implant devices
Jeff Stainsby, Toronto (CA); Alexander Gyles Panther, Toronto (CA); Chad Tyler Harris, Toronto (CA); and Cameron Anthony Piron, Toronto (CA)
Assigned to Synaptive Medical Inc.
Filed by SYNAPTIVE MEDICAL INC., Toronto (CA)
Filed on Mar. 30, 2023, as Appl. No. 18/193,191.
Application 18/193,191 is a continuation of application No. 15/762,853, granted, now 11,707,204, previously published as PCT/IB2015/057643, filed on Oct. 6, 2015.
Prior Publication US 2023/0240554 A1, Aug. 3, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 5/055 (2006.01); A61B 34/20 (2016.01); G01R 33/50 (2006.01); G01R 33/56 (2006.01); G01R 33/563 (2006.01); A61N 1/05 (2006.01)
CPC A61B 5/055 (2013.01) [G01R 33/50 (2013.01); G01R 33/5608 (2013.01); G01R 33/56341 (2013.01); A61B 34/20 (2016.02); A61N 1/0534 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A non-transitory computer-readable medium storing computer-readable instructions executable by a processor of a computing device to:
obtain
(i) a first magnetic resonance (MR) image of a patient tissue before insertion of an implant device in the patient tissue, and
(ii) (ii) a second MR image of the patient tissue after insertion of the implant device in the patient tissue, the first and second MR images captured at different magnetic field strengths;
register the first and second MR images;
for each voxel of the second MR image:
(i) responsive to determining that a difference between a value of the voxel and a value of a corresponding voxel of the first MR image exceeds a threshold indicating a presence of the implant device, select the voxel of the second MR image, and
(ii) responsive to determining that the difference does not exceed the threshold, select the corresponding voxel of the first MR image;
generate a composite image containing the selected voxels of the second MR image substituted for the corresponding voxels of the first MR image, and the selected corresponding voxels of the first MR image, wherein the composite image reduces artifacts and distortions caused by the implant device; and
present the composite image on a display of the computing device.