Endoscope Withdrawal Speed Detection for Lesion Review

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Solution Overview

Problem

After an endoscopic examination, examiners struggle to effectively refer to information about regions where the withdrawal speed was high, making it difficult to determine if a re-examination is needed.

Innovation Solution

An information display device that detects the position of an endoscope, estimates its withdrawal speed, and displays information about regions of interest where the withdrawal speed was equal to or higher than a predetermined threshold value.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the endoscope is removed within a predetermined time to improve examination efficiency, then productivity is improved, but the ability to detect lesions may deteriorate because the examiner might overlook the lesion site

Engineering Contradiction:

Improveexamination efficiencyVSAvoidlesion detection accuracy

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The system provides feedback to the examiner by displaying information about regions where the endoscope was removed at high speed, enabling the examiner to review potentially overlooked areas and ensure complete lesion detection while maintaining efficient examination timing

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system performs preliminary analysis of the endoscope movement data to identify high-speed withdrawal regions before the examiner completes the examination, allowing preparation of review materials in advance

Inventive Principle:

Principle #10Preliminary action

2Reliability

If the examiner checks all examination data thoroughly to ensure lesion detection, then reliability is improved, but the time required for review increases

Engineering Contradiction:

Improvelesion detection accuracyVSAvoidreview time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The system extracts and separates the critical information (high-speed withdrawal regions) from the complete examination data, allowing the examiner to focus review time only on the most important areas rather than reviewing all data uniformly

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The system applies different review priorities to different regions of the examination data, highlighting areas with high withdrawal speeds that require attention while allowing rapid review of low-speed regions

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS20250139769A1Information display device, information display method, and recording medium

Publication Date: 2025.05.01 NEC CORP

AI summary

The position detection means detects a position of an endoscope based on an endoscopic image or the like. The speed estimation means estimates a withdrawal speed of the endoscope based on the acquired position of the endoscope. The display control means displays information indicating a region of interest, which is a region where the withdrawal speed was equal to or higher than a predetermined threshold value, on a display device based on the position of the endoscope and the withdrawal speed.