US 11,887,306 B2 · System and method for intraoperatively determining image alignment

Abstract

Disclosed embodiments determine, at an early stage, suitability of an intraoperative image for further intraoperative surgical analysis. The determination of suitability may be made using a first angle (such as a first obturator angle) based on at least three pelvic feature points in a preoperative image, a corresponding second angle (such as a corresponding second obturator angle) based on at least three corresponding pelvic feature points in an intraoperative image, and by comparing the first angle and the corresponding second angle to determine intraoperative image suitability. The first intra-operative image is indicated as suitable for further intraoperative analysis when an absolute value of a difference between the first angle and the corresponding second angle does not exceed a threshold. When the intraoperative image is determined as unsuitable for further intraoperative analysis, an indication of a movement direction for a fluoroscopy camera used to capture the intraoperative image is provided.

Claims20

Dependent claims

A processor-implemented method to intraoperatively determine a suitability of an intraoperative image for further intraoperative surgical analysis, the method comprising:

determining, based on at least three pelvic feature points in a pre-operative image, a first angle;
determining, based on at least three corresponding pelvic feature points in a first intraoperative image, a corresponding second angle;
determining the suitability of the intraoperative image for the further intraoperative surgical analysis based on a comparison of the first angle and the corresponding second angle;
and
in response to a determination that the first intraoperative image is not suitable for the intraoperative surgical analysis, providing an indication of a movement direction for a fluoroscopy camera used to obtain the first intraoperative image.

2 more elements

An apparatus comprising:

a communications interface to receive a first intraoperative image captured by a fluoroscopy camera,
a memory capable of storing a preoperative image and the first intraoperative image, and
a processor coupled to the memory and the communications interface, wherein the processor is configured to:
determine, based on at least three pelvic feature points in the preoperative image, a first angle;
determine, based on at least three corresponding pelvic feature points in the first intraoperative image, a corresponding second angle;
determine the suitability of the intraoperative image for further intraoperative surgical analysis based on a comparison of the first angle and the corresponding second angle;
and
in response to a determination that the first intraoperative image is not suitable for the intraoperative surgical analysis, provide an indication of a movement direction for the fluoroscopy camera used to obtain the first intraoperative image.

5 more elements

Dependencies are inferred from the claim text.

System and method for intraoperatively determining image alignment

Life of this patent

System and method for intraoperatively determining image alignment

Life of this patent

Abstract

Claims20