Systems and methods of volumetrically assessing structures of skeletal cavities

Patent metadata

Field	Value
Publication number	US-12482124-B2
Application number	US-202117347105-A
Country	US
Kind code	B2
Filing date	Jun 14, 2021
Priority date	Jun 14, 2021
Publication date	Nov 25, 2025
Grant date	Nov 25, 2025

Abstract

Systems and methods of detecting a presence of opacification or pneumatization in skeletal structures of patients are disclosed. The systems and methods include receiving images, processing the images using a convolutional neural network, and generating, with the convolutional neural network, an opacification score for the image. Systems and methods include training the convolutional neural network to delineate skeletal structure pixels within a computed tomography scan image and to generate an intensity value for each skeletal structure pixel within a computed tomography scan image to determine an opacification score for the computed tomography scan image.

First claim

What is claimed is:

1 . A method of detecting a presence of opacification in a skeletal structure of a patient, the method comprising:
receiving, with a processor of a computing system, a first image, wherein the first image is a computed tomography (CT) image on sinuses processing, with the processor, the first image using a convolutional neural network (CNN) to yield a second image comprising one or more sinus cavities identified by the CNN; and generating, with the processor, an opacification score for the second image by determining a percentage of pixels within the one or more sinus cavities of the second image that have an intensity value between −500 and +200 Hounsfield units.

2 . The method of claim 1 , wherein processing the first image comprises using the CNN to delineate the skeletal structure.

3 . The method of claim 1 , wherein the pixels within the second image are CT pixels.

4 . The method of claim 1 , further comprising:
rendering the second image to a display device, wherein the second image comprises visual markings that show opacified regions and clear regions of the one or more sinus cavities.

5 . The method of claim 4 , further comprising:
rendering a third image to the display device, wherein the third image comprises a three-dimensional model that includes the one or more sinus cavities and the visual markings.

6 . The method of claim 5 , wherein the three-dimensional model that includes the one or more sinus cavities and the visual markings excludes regions of the skeletal structure that surround the one or more sinus cavities.

7 . The method of claim 1 , further comprising computing and outputting a total volume of the skeletal structure.

8 . The method of claim 1 , wherein the skeletal structure is a skull.

9 . The method of claim 4 , wherein the opacified regions and the clear regions are displayed with different colors.

10 . The method of claim 1 , further comprising determining contents of the skeletal structure based on the opacification score.

11 . A system for detecting a presence of opacification in a skeletal structure of a patient, the system comprising:
a processor; and a computer-readable storage medium storing computer-readable instructions which, when executed by the processor, cause the processor to:
receive a first image, wherein the first image is a computed tomography (CT) image on sinuses
process the first image using a convolutional neural network (CNN) to yield a second image comprising one or more sinus cavities identified by the CNN; and
generate an opacification score for the second image by determining a percentage of pixels within the one or more sinus cavities of the second image that have an intensity value between −500 and +200 Hounsfield units.

12 . The system of claim 11 , wherein processing the first image comprises using the CNN to delineate pixels of the skeletal structure.

13 . The system of claim 11 , wherein the pixels within the second image are CT pixels.

14 . The system of claim 11 , wherein the computer-readable instructions comprise instructions, which when executed by the processor, cause the processor to render the second image to a display device, wherein the second image comprises visual markings that show opacified regions and clear regions of the one or more sinus cavities.

15 . The system of claim 14 , wherein the computer-readable instructions comprise instructions, which when executed by the processor, cause the processor render a third image to the display device, wherein the third image comprises a three-dimensional model that includes the one or more sinus cavities and the visual markings.

16 . The system of claim 15 , wherein the three-dimensional model that includes the one or more sinus cavities and the visual markings excludes regions of the skeletal structure that surround the one or more sinus cavities.

17 . The system of claim 11 , wherein the computer-readable instructions comprise instructions, which when executed by the processor, cause the processor to compute and output a total volume of the skeletal structure.

18 . A computer program product for detecting a presence of opacification in a skeletal structure of a patient, the computer program product comprising a non-transitory computer-readable storage medium having computer-readable program code embodied therewith, the computer-readable program code configured, when executed by a processor, to cause the processor to:
receive a first image, wherein the first image is a computed tomography (CT) image on sinuses
process the first image using a convolutional neural network (CNN) to yield a second image comprising one or more sinus cavities identified by the CNN; and
generate an opacification score for the second image by determining a percentage of pixels within the one or more sinus cavities of the second image that have an intensity value between −500 and +200 Hounsfield units.

Assignees

• Nat Jewish Health

Inventors

• Humphries Stephen M

Classifications

• A61B6/501

  for diagnosis of the head, e.g. neuroimaging or craniography · CPC title

• G06T2207/20084

  Artificial neural networks [ANN] · CPC title

• G06T2207/10081

  Computed x-ray tomography [CT] · CPC title

• G06T7/10

  Segmentation; Edge detection (motion-based segmentation G06T7/215) · CPC title

• G06T2207/30008

  Bone · CPC title