Nuclear Medicine Diagnostic Device Motion Region Highlighting

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Solution Overview

Problem

In nuclear medicine diagnostic devices, the efficient reuse of knowledge gained from non-respiratory-gated images is hindered when respiratory-gated images are displayed individually or alongside non-respiratory-gated images, making it difficult to identify areas affected by body motion from a broad perspective.

Innovation Solution

A nuclear medicine diagnostic device that includes a processing circuit capable of extracting regions of body motion from respiratory-gated images and controlling the display to highlight these regions, allowing for more effective interpretation and efficiency in radiogram analysis.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If respiratory-gated images are displayed individually or alongside non-respiratory-gated images, then the images can be viewed separately, but the knowledge gained from non-respiratory-gated images cannot be efficiently reused and areas affected by body motion cannot be identified from a broad perspective

Engineering Contradiction:
Improveknowledge reuse efficiencyVSAvoiddisplay system complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The patent merges respiratory-gated images and non-respiratory-gated images into a single composite display. The processing circuit superimposes the respiratory-gated image onto the non-respiratory-gated image, allowing both types of images to be viewed simultaneously in one display unit. This integration enables radiologists to efficiently reuse knowledge from non-respiratory-gated images while identifying body motion affected areas without requiring separate display units or complex switching mechanisms.

Inventive Principle:
Principle #5Merging (Combining)

2Productivity

If respiratory-gated images are displayed separately, then image quality is maintained, but unnecessary man-hours are required for radiogram interpretation

Engineering Contradiction:
Improveradiogram interpretation efficiencyVSAvoidinterpretation time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The system performs preliminary processing by automatically generating and displaying the composite image that highlights body motion affected areas before the radiologist begins interpretation. The processing circuit pre-identifies regions affected by body motion through image comparison and superimposition, so that when the radiologist views the composite image, the areas requiring attention are already marked and highlighted, eliminating the need for time-consuming manual analysis of body motion effects.

Inventive Principle:
Principle #10Preliminary action

3Measurement precision

If non-respiratory-gated images are used to study body motion effects, then broad perspective is achieved, but the interpretation of radiogram requires unnecessary man-hours

Engineering Contradiction:
Improvebody motion area identification accuracyVSAvoidoperational simplicity
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The patent applies local quality enhancement by selectively highlighting only the regions affected by body motion within the composite image. The processing circuit identifies specific areas where body motion has occurred and enhances their visual prominence through superimposition and contrast adjustment, while leaving other regions in their original state. This allows radiologists to quickly locate and assess body motion affected areas without having to manually examine the entire image or switch between multiple views.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS20250124617A1Nuclear medicine diagnostic device and data processing device
Publication Date: 2025.04.17 CANON KK
  • US20250124617A1 patent drawing
  • US20250124617A1 patent drawing
  • US20250124617A1 patent drawing

AI summary

A nuclear medicine diagnostic device includes a processing circuit. The processing circuit is configured to extract, in a first nuclear medicine image formed as a result of performing respiratory-gated reconstruction with respect to nuclear medicine data obtained by performing nuclear medicine scanning of a subject, a region in which body motion is occurring; and control a display in such a way that the region is displayed in an identifiable manner in the first nuclear medicine image.