Diagnosis Support Apparatus With Rejection-Based Reason Adjustment

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Solution Overview

Problem

Doctors face uncertainty when relying on medical AI diagnosis results due to a lack of transparency in the reasoning behind the outputs, leading to difficulties in adopting or rejecting these results without clear conviction.

Innovation Solution

A diagnosis support apparatus that uses processing circuitry to output identification results and reasons, allowing for modification of the identification processing based on operator feedback, enabling the exclusion of rejected reasons and re-execution of diagnosis with adjusted algorithms or additional information.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If medical AI program outputs identification result with identification reason, then doctor's understanding of the diagnosis is improved, but the complexity of the system increases

Engineering Contradiction:
Improvedoctor's conviction in diagnosisVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The identification reason is segmented into multiple individual pieces of information, each corresponding to a specific feature or finding from the examination data. This allows doctors to review and reject specific reasons individually rather than treating the reasoning as a monolithic block, thereby improving understanding without proportionally increasing overall system complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system dynamically adjusts the identification reasons based on the specific examination data and the AI model's analysis. The reasons are generated adaptively rather than being fixed or predetermined, allowing the system to provide tailored explanations for each diagnosis case, improving reliability while maintaining manageable complexity through on-demand generation.

Inventive Principle:
Principle #15Dynamics

2Reliability

If doctor rejects identification reason, then diagnostic accuracy is improved by incorporating human judgment, but additional time is required for review and re-execution

Engineering Contradiction:
Improvediagnostic accuracyVSAvoiddiagnosis time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system implements a feedback mechanism where doctors can review and reject identification reasons, and the AI program re-executes the analysis incorporating this feedback. This iterative process allows continuous improvement of diagnostic accuracy by combining AI capabilities with human judgment, while the structured feedback loop ensures that time is invested only in cases where human review adds value.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The AI program performs preliminary analysis and generates identification reasons before doctor review, filtering out obvious cases that don't require extensive human intervention. This preliminary action reduces the overall time loss by pre-processing cases and only requiring full doctor engagement when necessary, thereby balancing accuracy improvement with time efficiency.

Inventive Principle:
Principle #10Preliminary action

3Measurement precision

If AI program re-executes identification processing after rejection, then more accurate identification result is obtained, but computational resources are consumed

Engineering Contradiction:
Improveidentification accuracyVSAvoidcomputational energy
Core Design Contradiction:
Measurement precisionVSUse of energy by moving object

Solution Approach 1:

When re-executing identification processing after rejection, the AI program performs partial re-analysis focusing only on the specific rejected reasons rather than completely re-processing all examination data. This selective re-execution maintains improved identification accuracy by re-evaluating problematic areas while consuming fewer computational resources than a full re-analysis would require.

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentUS11626209B2Diagnosis support apparatus, diagnosis support system, diagnosis support method, and non-transitory storage medium
Publication Date: 2023.04.11 CANON MEDICAL SYST CORP
  • US11626209B2 patent drawing
  • US11626209B2 patent drawing
  • US11626209B2 patent drawing

AI summary

According to one embodiment, a diagnosis support apparatus includes processing circuitry. The processing circuitry executes identification processing by using medical information as an input to output a first identification result and a first identification reason for providing the first identification result. The processing circuitry modifies the identification processing to refrain from outputting the first identification reason in response to an instruction to reject the first identification reason. The processing circuitry executes the modified identification processing by using the medical information as an input to output a second identification result and a second identification reason for providing the second identification result.