Modified Intensity Projection Image Depth Encoding

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Solution Overview

Problem

Maximum Intensity Projection (MIP) images in medical imaging lose depth information, making it difficult to determine the anatomical location of intensities, and existing solutions require additional user input or restrict the view to organ-specific projections, limiting rapid assessment.

Innovation Solution

Generating a modified intensity projection image by calculating altered display properties based on image segmentation, using HSV color components to differentiate voxels within different volumes of interest, allowing for organ-specific coloring to facilitate anatomical localization without additional data or overlays.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If Maximum Intensity Projection (MIP) is used to visualize functional images, then rapid identification of potential lesions is facilitated, but depth information is lost making anatomical localization difficult

Engineering Contradiction:
Improverapid identification of lesionsVSAvoiddepth information
Core Design Contradiction:
ProductivityVSLoss of information

Solution Approach 1:

The patent applies local quality by assigning different display properties to different spatial regions of the MIP image based on their depth position. Voxels are categorized into foreground, midground, and background regions, and each region receives distinct visual treatment (such as different transparency levels or color intensities) to encode depth information locally within the projection image, allowing rapid lesion identification while preserving anatomical context.

Inventive Principle:
Principle #3Local quality

2Measurement precision

If automatic navigation to MPR views is enabled for anatomical localization, then correlation between intensity position and anatomical position is achieved, but additional user input is required precluding rapid assessment

Engineering Contradiction:
Improveanatomical localization accuracyVSAvoidrapid assessment capability
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The patent implements self-service by automatically encoding depth and anatomical position information directly into the visual display of the MIP image itself. The system performs the localization function automatically through computational assignment of display properties to voxels based on their spatial coordinates and relationship to anatomical structures, eliminating the need for user interaction with MPR views while maintaining accurate anatomical correlation.

Inventive Principle:
Principle #25Self-service

3Measurement precision

If organ-specific MIPs are generated to enable anatomical localization, then organ regions can be clearly identified, but body regions outside the segmented organ cannot be assessed

Engineering Contradiction:
Improveorgan identification accuracyVSAvoidassessment coverage
Core Design Contradiction:
Measurement precisionVSAdaptability or versatility

Solution Approach 1:

The patent applies universality by creating a single MIP image display system that simultaneously provides organ-specific identification and comprehensive body region assessment. The method uses a unified approach where all voxels in the entire field of view are assigned display properties based on their depth and anatomical context, allowing the same image to serve multiple functions: identifying specific organs, localizing lesions within those organs, and assessing regions outside segmented organs, all in one unified display.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS9020218B2Methods and apparatus for generating a modified intensity projection image
Publication Date: 2015.04.28 SIEMENS MEDICAL SOLUTIONS USA INC
  • US9020218B2 patent drawing
  • US9020218B2 patent drawing
  • US9020218B2 patent drawing

AI summary

In a method or apparatus for generating, from medical image data of a subject from a functional imaging modality, a modified intensity projection image for display. An intensity projection image data set is obtained from the image data. A segmentation for the image data is obtained. Based on information from the segmentation, a modified display property is calculated for at least one voxel of the intensity projection image data set.