Animated 3D MPR Display for Spatial Relationship Clarity
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Solution Overview
Problem
Users, especially novice users, face difficulties in understanding the relative orientations and positions of multi-planar reconstruction (MPR) images in medical diagnostic imaging, as existing methods do not adequately convey spatial relationships, leading to confusion when transitioning between different MPR arrangements.
Innovation Solution
A method and system that display a three-dimensional MPR representation of multiple planes relative to each other, with animated transitions between different relative positions, allowing users to better comprehend the spatial relationships by gradually showing intermediary positions during the transition from one MPR arrangement to another.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If standard MPR views are displayed with colored intersection lines, then spatial relationships between planes are indicated, but users still have difficulty understanding relative orientations and positions
Solution Approach 1:
A 3D MPR display acts as an intermediary visualization between traditional 2D MPR images and full volume rendered images. This 3D display shows multiple planar images rendered together in their correct relative orientations and positions, serving as a mediator that bridges the gap between 2D representations and spatial understanding, making it easier for users to comprehend anatomical relationships without requiring full 3D visualization expertise
Solution Approach 2:
The solution transitions from 2D MPR image display to a 3D MPR display that renders multiple planes in three-dimensional space. By adding the third dimension to the visualization, the system preserves all the information from 2D views while simultaneously conveying spatial relationships, orientations, and positions that were lost in flat 2D representations
2Productivity
If MPR arrangement transitions are made quickly, then productivity is improved, but user understanding of spatial relationships deteriorates due to jump between relative positions
Solution Approach 1:
The transition between different MPR arrangements is animated rather than instantaneous. The 3D MPR display dynamically updates to show intermediate states during the transition, allowing users to track how planes move from one configuration to another. This dynamic visualization maintains spatial relationship continuity while enabling rapid transitions between views
3Ease of operation
If 2D MPR images are used, then ease of operation is improved, but spatial relationship understanding worsens compared to volume rendered images
Solution Approach 1:
The 3D MPR display merges multiple 2D planar images into a single three-dimensional visualization where all planes are rendered together in their correct relative orientations and positions. This combination preserves the familiarity and ease of 2D image interpretation while simultaneously conveying spatial relationships, effectively merging the advantages of both 2D and 3D visualization approaches
Data Source
AI summary
Spatial relationships are conveyed in multi-planar reconstruction (MPR). A 3D MPR display indicates relative position of MPR imaging planes to each other and/or anatomy at a given time. To better assist user understanding of the location of the MPR planes relative to each other and/or anatomy in transitioning to different relative locations, the transition is animated. The shift in planar position occurs gradually in the 3D MPR display despite user indication of a jump to another arrangement.