3D Lung Perfusion Visualization for Emboli Detection

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Solution Overview

Problem

Current methods for diagnosing pulmonary embolism are limited by the difficulty in visualizing and analyzing 2D images of lung perfusion, making it challenging to identify abnormal perfusion regions and locate emboli effectively, which is critical for timely diagnosis and assessing blood flow in the lungs.

Innovation Solution

A system and method for 3D visualization of lung perfusion or density that segments image data, generates a 3D map as a color-coded semi-transparent volume, and classifies regions of abnormal perfusion, allowing for immediate identification of emboli and other abnormalities, using adaptive smoothing or texture filtering techniques.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If 2D visualization methods are used for lung perfusion, then some useful information is conveyed, but it is difficult to keep track of regions of abnormal perfusion and their location with respect to emboli

Engineering Contradiction:
Improveperfusion region trackingVSAvoidvisualization complexity
Core Design Contradiction:
Loss of informationVSEase of operation

Solution Approach 1:

The patent transitions from 2D visualization to 3D volume rendering of lung perfusion data. This dimensional change enables medical practitioners to view the entire lung volume in a single view, making it significantly easier to track regions of abnormal perfusion and locate emboli within the three-dimensional anatomical context, thereby resolving the tracking difficulty inherent in 2D representations

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Measurement precision

If multiple 2D slices are generated to identify segmental and sub-segmental emboli, then detection capability is improved, but the process becomes time-consuming and does not lend itself to immediate visualization

Engineering Contradiction:
Improveemboli detection accuracyVSAvoiddiagnosis time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent merges multiple 2D perfusion slices into a single integrated 3D volume rendering. This consolidation maintains the detection capability for segmental and sub-segmental emboli while presenting all information in one unified view, eliminating the need to sequentially examine multiple slices and enabling immediate visualization for faster diagnosis

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

By transitioning from examining multiple 2D slices to viewing a single 3D volume, the patent reduces the time required for emboli detection while maintaining precision. The three-dimensional representation allows radiologists to rapidly assess the entire lung parenchyma and identify perfusion defects without the time-consuming process of navigating through numerous two-dimensional sections

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS7715608B2System and method for 3D visualization of lung perfusion or density and statistical analysis thereof
Publication Date: 2010.05.11 SIEMENS MEDICAL SOLUTIONS USA INC
  • US7715608B2 patent drawing
  • US7715608B2 patent drawing
  • US7715608B2 patent drawing

AI summary

A system and method for 3D visualization of a pair of lungs are provided. The method comprises: segmenting image data of the pair of lungs and lung parenchyma; generating a 3D map as a function of the segmented image data; and rendering the 3D map as a color-coded semi-transparent 3D volume, wherein an opaque region highlights an area of interest.