Fraunhofer Institute for Digital Medicine MEVIS
Fraunhofer Institute for Digital Medicine MEVIS
Representation of different aspects of blood flow in aorta such as connectivity with the brain, flow velocity, distribution to different branches, pressure and vorticity.

MEVISFlow

Representation of different aspects of blood flow in aorta such as connectivity with the brain, flow velocity, distribution to different branches, pressure and vorticity.

MEVISFlow - Non-Invasive Interactive Exploration of In-vivo Hemodynamics

Vision

 

Progress in MRI techniques have facilitated the noninvasive measurement of patient-specific 4D hemodynamics. However, analyzing these data is challenging because of the data complexity and the high number of processing steps. The MEVISFlow software combines new processing and visualization methods for an interactive visual and quantitative inspection of 4D PCMRI data. It is developed in cooperation with clinicians and medical physicists from several clinical sites in Germany and the United States in order to facilitate non-invasive hemodynamic analysis for a multitude of clinical applications.

 

Solutions

 

Pre-Processing of PC MRI Data

  • 4D phase-offset error correction
  • Phase unwrapping (antialiasing)
  • Semi-automatic segmentation of vascular systems

Visual Exploration of Flow Patterns

  • Forward and backward tracking
  • Color coding according to local velocity, direction, curvature, or emitter region
  • 3D flow visualization and animation

Quantification of Local Hemodynamics

  • Calculation of pressure difference maps
  • Flow quantification at user-defined cross sections
  • Connectivity analysis considering uncertainty caused by image noise