Biopsy CNN Classification for Rectal Cancer Response Prediction

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Solution Overview

Problem

Existing treatments for rectal cancer, such as short-course radiation followed by chemotherapy, result in incomplete responses for a certain percentage of patients, leading to unnecessary chemotherapy and potential metastatic progression, with current methods lacking effective prediction tools to identify likely responders.

Innovation Solution

A convolutional neural network (CNN) system processes pre-treatment biopsies to predict patient response to therapies like radiation, chemotherapy, or immune therapy, using histopathological images to identify likely complete responders and prevent overtreatment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If short-course radiation followed by chemotherapy is administered to all rectal cancer patients, then treatment coverage is maximized, but unnecessary chemotherapy and overtreatment occur for patients who would have achieved complete response anyway

Engineering Contradiction:
Improvetreatment effectivenessVSAvoidovertreatment and unnecessary chemotherapy
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The system performs preliminary classification of biopsy images to predict treatment response before administering chemotherapy and radiation. By analyzing histopathological features in advance, the system identifies patients likely to achieve complete response versus those needing aggressive treatment, enabling proactive treatment stratification that prevents overtreatment while maintaining efficacy for those who need it

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

A convolutional neural network classification system serves as an intermediary between biopsy samples and treatment decisions. The CNN processes histopathological images and generates predictions about treatment response, acting as a decision-support mediator that guides clinicians in determining whether patients require full chemotherapy-radiation protocols or can proceed with less aggressive treatment

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If aggressive chemotherapy and radiation protocols are used for all patients, then complete response is maximized for non-responders, but treatment intensity and side effects increase for patients who would have responded completely anyway

Engineering Contradiction:
Improvecomplete response rateVSAvoidchemotherapy side effects and physical hardships
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The system applies different treatment intensities to different patient subgroups based on their predicted response characteristics. Patients classified as likely complete responders receive minimal or no chemotherapy, while those predicted to be non-responders receive full aggressive protocols. This localized treatment approach matches treatment intensity to individual patient needs, reducing side effects for responders while maintaining efficacy for non-responders

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The system changes the treatment parameter (chemotherapy intensity) based on the predicted response category. For patients predicted to be complete responders, chemotherapy is reduced or eliminated; for predicted non-responders, full chemotherapy protocols are administered. This parameter adjustment based on predictive classification optimizes the balance between treatment efficacy and side effect burden

Inventive Principle:
Principle #35Parameter changes

3Productivity

If pretreatment biopsy analysis using CNN is implemented, then overtreatment is reduced and treatment optimization is achieved, but system complexity and computational requirements increase

Engineering Contradiction:
Improvetreatment optimization efficiencyVSAvoidCNN system and infrastructure
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system uses digital copies of biopsy images processed by the CNN classification system. Instead of complex physical analysis methods, the system creates and analyzes digital representations of histopathological samples through image processing. This copying approach simplifies the analysis workflow while enabling sophisticated computational classification to guide treatment decisions

Inventive Principle:
Principle #26Copying

Data Source

PatentUS20260066086A1Convolutional neural network classification of pretreatment biopsies
Publication Date: 2026.03.05 WASHINGTON UNIV IN SAINT LOUIS
  • US20260066086A1 patent drawing
  • US20260066086A1 patent drawing
  • US20260066086A1 patent drawing

AI summary

A method and apparatus are provided for pretreatment prediction system comprising display device a computing device comprising a processor and a memory, the memory storing instructions that, when executed by the processor cause the processor to receive at least one image of a pre-treatment biopsy from a patient process the at least one image using a trained convolutional neural network (CNN) display on the display device, a prediction of a response of the patient to a treatment base on a result of the processing of the at least one image using the trained CNN.