Composite Medical Imaging Overlay for Needle Visibility

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Solution Overview

Problem

Medical images often struggle to clearly visualize introduced structures, such as needles, due to sensitivity to different tissue types and imaging methods, leading to obscured information and challenges in real-time visualization.

Innovation Solution

A method and apparatus for generating composite image data by combining first and second image data sets, using structural data to determine the location of a structure within the target region, and overlaying a representation of this location onto the second image data, improving visibility and accuracy in medical imaging.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If different types of medical images are displayed side by side or overlaid, then information from multiple imaging modalities is provided, but the images become difficult to read and important information is obscured

Engineering Contradiction:
Improveinformation visibilityVSAvoidimage display complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The patent extracts the needle structure location information from the first image data (Doppler) and represents it as simplified geometric features (line segments) that are overlaid on the second image data (B-mode). This extraction approach provides needle location information without obscuring the underlying anatomical structures in the B-mode image, resolving the contradiction between providing multiple information sources and maintaining image readability.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent uses an intermediary representation approach where the needle is depicted as simplified line segments with adjustable transparency rather than displaying the full complex Doppler image. This intermediary representation mediates between the need to show needle location and the need to maintain clarity of the anatomical background, allowing both pieces of information to be visible simultaneously without mutual obstruction.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Measurement precision

If Doppler imaging is used to locate introduced structures, then motion-sensitive detection is achieved, but the precise position of structures like needles becomes difficult to visualize in soft tissue images

Engineering Contradiction:
Improvestructure location precisionVSAvoidneedle position detection
Core Design Contradiction:
Measurement precisionVSDifficulty of detecting and measuring

Solution Approach 1:

The patent extracts only the essential location information from the Doppler image data, representing the needle as simplified line segments defined by start and end coordinates. This extraction converts complex motion-sensitive imaging data into precise, easy-to-interpret geometric representations that clearly show needle position without the visual complexity of the original Doppler image.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent applies different representation qualities to different parts of the image data: the needle structure is represented with high-precision geometric features (line segments with specific coordinates and orientations) while the anatomical background maintains its natural imaging appearance. This local differentiation optimizes both needle detection precision and overall image interpretability.

Inventive Principle:
Principle #3Local quality

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enhances the visualization of medical devices within medical images, reducing noise and artefacts, allowing for more precise location determination and improved accuracy in real-time imaging procedures.

Implementation Method 1

a piezoelectric element operable to cause reciprocation along a principal axis between the first and second mass assemblies

Methodology Applied
Scientific EffectPiezoelectric effect: Piezoelectric Effect

Data Source

PatentEP2996564B1Medical apparatus
Publication Date: 2023.09.06 UNIV COURT OF THE UNIV OF DUNDEE
  • EP2996564B1 patent drawingFigure 1
  • EP2996564B1 patent drawingFigure 2
  • EP2996564B1 patent drawingFigure 3(a)~4

AI summary

The invention relates to improving medical interventions and in certain instances to the generation of image data, in particular data acquired during a medical intervention or procedure. The invention also concerns the visibility of structures in target regions to be imaged and how this may be enhanced.