Automated Breast Image Texture Analysis for Cancer Risk Assessment

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Solution Overview

Problem

Current methods for assessing cancer risk, such as Gail risk factors and mammographic breast density assessment, are limited by their reliance on population statistics and subjective density assessments, which do not accurately predict individual cancer risk and are prone to human error.

Innovation Solution

A system that analyzes texture features from breast images, such as skewness, coarseness, and contrast, combined with personal risk factors, to provide a probabilistic cancer risk assessment using logistic and linear regression models, with the option for automatic ROI selection to minimize human error.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If automated ROI selection and texture analysis are implemented, then measurement precision and reliability of cancer risk assessment are improved, but device complexity and difficulty of detecting and measuring increase

Engineering Contradiction:
Improvecancer risk assessment accuracyVSAvoidsystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system performs automatic ROI selection and texture feature extraction without requiring manual intervention. The computer automatically identifies regions of interest in breast images and computes texture metrics, eliminating the need for subjective manual assessment while maintaining high measurement precision through algorithmic consistency

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical assessment methods with automated computational analysis. Texture features are extracted through algorithmic processing of digital images rather than human visual inspection, substituting mechanical human judgment with computational mechanisms that provide more precise and reproducible measurements

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Ease of operation

If automated ROI selection is used, then ease of operation is improved by minimizing human error, but device complexity increases due to image comparison and mapping requirements

Engineering Contradiction:
Improveoperational simplicityVSAvoidautomation system complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The system automatically compares the current breast image with reference images and performs ROI mapping without user intervention. This self-service capability eliminates operational errors associated with manual ROI selection while providing consistent, reproducible results across different users and sessions

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system performs preliminary image comparison and ROI identification before the user needs to make any decisions. By pre-processing the images and automatically establishing anatomic correspondences, the system prepares the analysis in advance, making the overall operation simpler and more efficient

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS8634610B2System and method for assessing cancer risk
Publication Date: 2014.01.21 THE TRUSTEES OF THE UNIV OF PENNSYLVANIA
  • US8634610B2 patent drawing
  • US8634610B2 patent drawing
  • US8634610B2 patent drawing

AI summary

Methods and systems for determining a probabilistic assessment of a person developing cancer are disclosed. The probabilistic assessment may include receiving a digital breast image of a person, selecting a region of interest within the received breast image, and analyzing this selected region of interest with respect to texture analysis. A probabilistic assessment may then be determined through the use of a logistic regression model based on the texture analysis within the region of interest and personal risk factors. A probabilistic assessment may also be determined through the use of a linear regression model based on the texture analysis within the region of interest and a known cancer indicator or risk factor.