US 9,811,939 B2
Method and system for registering intravascular images
Jean-Paul Aben, Limbricht (NL); Boudewijn J. A. Verstraelen, Lanaken (BE); and Tristan Slots, Maasmechelen (BE)
Assigned to Pie Medical Imaging B.V., Maastricht (NL)
Filed by Pie Medical Imaging B.V., Maastricht (NL)
Filed on Nov. 10, 2014, as Appl. No. 14/537,425.
Claims priority of application No. 13192749 (EP), filed on Nov. 13, 2013.
Prior Publication US 2015/0131886 A1, May 14, 2015
Int. Cl. G06K 9/00 (2006.01); G06T 15/00 (2011.01); A61B 6/12 (2006.01); A61B 8/12 (2006.01); G06T 7/32 (2017.01); A61B 6/00 (2006.01); A61B 8/08 (2006.01)
CPC G06T 15/00 (2013.01) [A61B 6/12 (2013.01); A61B 6/487 (2013.01); A61B 6/504 (2013.01); A61B 6/5247 (2013.01); A61B 8/0891 (2013.01); A61B 8/12 (2013.01); A61B 8/5261 (2013.01); G06T 7/32 (2017.01); A61B 6/4441 (2013.01); A61B 6/481 (2013.01); A61B 6/541 (2013.01); A61B 8/0883 (2013.01); G06T 2207/10101 (2013.01); G06T 2207/10116 (2013.01); G06T 2207/10132 (2013.01); G06T 2207/30101 (2013.01); G06T 2207/30241 (2013.01)] 28 Claims
OG exemplary drawing
 
1. A method for co-registration of two-dimensional (2D) angiography images and intravascular images of a vessel, of which the intravascular images are in the form of a sequence of images obtained from an intravascular imaging device which is pulled back through the vessel, the method comprising:
a) generating a three-dimensional (3D) reconstruction of a path of the intravascular device within the vessel from a plurality of the 2D angiography images of the vessel which have been obtained from different perspectives, wherein the 3D reconstruction of the path of the intravascular device within the vessel is determined by 3D reconstruction of a catheter wire that extends from the intravascular device;
b) determining a first position of an element of the intravascular device within the 3D reconstruction of the path of the intravascular device within the vessel;
c) correlating the first position of the element of the intravascular device with a correspondent point in the 3D reconstruction of the path of the intravascular device within the vessel; and
d) correlating each intravascular image of the sequence with a corresponding spatial position within at least one of the 2D angiography images.