Spectral-Tagging Technique for Improving Resolution of Dynamic Echo-Planar Imaging

Technology #ua17-134

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Nan-kuei Chen
Associate Professor, Biomedical engineering
Managed By
Robert Sleeper
Licensing Manager (520) 626-4604

Title: Spectral-Tagging Technique for Improving Resolution and Acquisition time of Dynamic Echo-Planar Imaging


Invention: The invention is a spectral-tagging method that allows for 3X faster speed of acquisition witn improved resolution of the targeted physiology. The invention improves upon echo-planar imaging by band-pass filtering different signals to reconstruct a specific spectral peak, resulting in high quality images without aliasing artifacts from multi-band echo-planar imaging signals.


Background: Echo-planar imaging is the most wildly used pulse sequence for dynamic magnetic resonance imaging. The drawback with this process is that conventional protocols result in artifacts, multi-band imaging is not feasible for in-plane parallel imaging, and simultaneous echo refocusing results in compromised spatial-resolution and accuracy when used with multi-band imaging. Therefore there is a need for improved echo-planar imaging spatial-temporal resolution for accurately capturing physiology.



  • Healthcare MRI equipment
  • Space exploration
  • Optics



  • Produces high quality images where conventional echo-planar imaging protocols are limited
  • The method is compatible with and can be integrated into conventional echo-planar imaging protocols
  • Shorter readout acquisition window and echo-spacing time


Licensing Manager:

Bob Sleeper


(520) 626-4604