US 11,892,289 B2
Manual calibration of imaging system
Andreas Johansson, San Diego, CA (US); and Jason Y. Sproul, Watertown, MA (US)
Assigned to PHILIPS IMAGE GUIDED THERAPY CORPORATION, San Diego, CA (US)
Filed by PHILIPS IMAGE GUIDED THERAPY CORPORATION, San Diego, CA (US)
Filed on Mar. 8, 2021, as Appl. No. 17/194,729.
Application 17/194,729 is a continuation of application No. 14/107,861, filed on Dec. 16, 2013, granted, now 10,942,022.
Claims priority of provisional application 61/739,881, filed on Dec. 20, 2012.
Prior Publication US 2021/0190476 A1, Jun. 24, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. G01B 9/02091 (2022.01); A61B 5/00 (2006.01); G01B 9/02 (2022.01); G01B 21/04 (2006.01); G06T 7/80 (2017.01); G01B 9/02055 (2022.01)
CPC G01B 9/02091 (2013.01) [A61B 5/0066 (2013.01); A61B 5/0073 (2013.01); G01B 9/02072 (2013.04); G01B 9/02089 (2013.01); G01B 21/045 (2013.01); G06T 7/80 (2017.01); A61B 5/7475 (2013.01); A61B 2560/0223 (2013.01); G06T 2207/10101 (2013.01); G06T 2207/20101 (2013.01); G06T 2207/30101 (2013.01)] 21 Claims
OG exemplary drawing
 
1. An imaging system, comprising:
an intravascular imaging catheter configured to be positioned within a vessel of a patient; and
a processor configured for communication with the intravascular imaging catheter, wherein the processor is configured to:
receive, from the intravascular imaging catheter, a first intravascular image including the vessel and a reference item;
output, to a display in communication with the processor, the first intravascular image including the vessel and the reference item;
receive a user input to move the displayed reference item from a first position to a second position, wherein the first position comprises a first diameter, wherein the second position comprises a second diameter different from the first diameter;
determine a calibration value based on a difference between the first diameter and the second diameter;
generate, in response to determining the calibration value based on the difference between the first diameter and the second diameter, a second intravascular image of the vessel, wherein the second intravascular image is a transformation of the first intravascular image based on the calibration value; and
output, to the display without conducting a new scan, the second intravascular image of the vessel.