US 12,229,873 B2
Methods for three-dimensional cardiac imaging
Mehdi H. Moghari, Boston, MA (US); Andrew J. Powell, Boston, MA (US); and Tal Geva, Boston, MA (US)
Assigned to The Children's Medical Center Corporation, Boston, MA (US)
Filed by The Children's Medical Center Corporation, Boston, MA (US)
Filed on Sep. 26, 2023, as Appl. No. 18/373,232.
Application 18/373,232 is a continuation of application No. 16/647,784, granted, now 11,790,597, previously published as PCT/US2018/052667, filed on Sep. 25, 2018.
Claims priority of provisional application 62/563,479, filed on Sep. 26, 2017.
Prior Publication US 2024/0020912 A1, Jan. 18, 2024
Int. Cl. G06K 9/00 (2022.01); A61B 5/00 (2006.01); A61B 5/055 (2006.01); A61B 5/113 (2006.01); G06T 15/08 (2011.01)
CPC G06T 15/08 (2013.01) [A61B 5/0044 (2013.01); A61B 5/055 (2013.01); A61B 5/113 (2013.01); A61B 5/7289 (2013.01); G06T 2210/41 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for obtaining a three-dimensional reconstruction of a heart in a freely respiring subject, the method comprising:
a) acquiring, during respiration of a subject, a set of three-dimensional images of the heart comprising at least one three-dimensional image for each phase of a plurality of phases of a cardiac cycle of the subject;
b) plotting, in one-dimension, respiratory induced displacement of the heart in at least one orientation during respiration based at least in part on at least one of the three-dimensional images during at least one of the plurality of phases of the cardiac cycle;
c) selecting the set of three-dimensional images of the heart upon the set of three-dimensional images falling within an acceptance window for use in reconstruction, the acceptance window being defined by an end-expiration based on the respiratory induced displacement of the heart during each phase of the plurality of phases; and
d) producing a three-dimensional reconstruction of the heart in each phase of the plurality of phases by adjusting a positioning of the set of three-dimensional images based on the respiratory induced displacement.