US 12,239,420 B2
Image processing to determine longitudinal orientation and generate tomographic and longitudinal views
Daisuke Yamada, Cambridge, MA (US)
Assigned to Canon U.S.A., Inc., Melville, NY (US)
Filed by Canon U.S.A., Inc., Melville, NY (US)
Filed on Oct. 6, 2020, as Appl. No. 17/064,435.
Claims priority of provisional application 62/915,918, filed on Oct. 16, 2019.
Prior Publication US 2021/0113098 A1, Apr. 22, 2021
Int. Cl. A61B 5/02 (2006.01); A61B 5/00 (2006.01); A61B 8/08 (2006.01); A61B 8/12 (2006.01); G06N 20/00 (2019.01)
CPC A61B 5/02007 (2013.01) [A61B 5/0066 (2013.01); A61B 5/0071 (2013.01); A61B 5/0084 (2013.01); A61B 5/7435 (2013.01); A61B 5/748 (2013.01); A61B 8/0841 (2013.01); A61B 8/085 (2013.01); A61B 8/0891 (2013.01); A61B 8/12 (2013.01); G06N 20/00 (2019.01); A61B 5/0075 (2013.01)] 35 Claims
OG exemplary drawing
 
1. An intravascular image processing method comprising:
acquiring intravascular data of a portion of a lumen along a longitudinal direction;
determining an ROI (region of interest) based on characteristics of the acquired intravascular data, where the ROI comprises a defect region corresponding to a shadow of the acquired intravascular data;
adjusting at least one of an orientation and angle of the intravascular data so the ROI appears and the defect region does not appear in the intravascular data;
generating a longitudinal view of the portion of the lumen that is a cross sectional plane along the longitudinal direction;
generating a tomographic view of the portion of the lumen that is a cross sectional plane perpendicular to the longitudinal direction; and
automatically displaying, without user interaction, an initial display of the longitudinal view and the tomographic view of the portion of the lumen so the ROI appears and the defect region does not appear.