Tunable Resonant Actuation for Magnetic Resonance Elastography of Active Tissues

Abstract

Intervertebral disc degeneration (IDD) is a common condition characterized by the deterioration of the discs separating the spine. Magnetic resonance elastography has shown potential in earlier diagnosis and investigation of DDD, but has been limited by available actuation techniques. This project aims to solve these actuation challenges by developing tunable resonance MRE actuators, establishing control methods for automated tuning and dual actuation, and combining these developments to characterize IVD stiffness in healthy human subjects. The project has been proceeding towards completion of each of the three aims, with development of tunable actuators, theoretical and practical advancements in self tuning capabilities and technology for IVD characterization in-vivo. The developed actuators demonstrated a nearly 500Hz resonance range, while positioning experiments validated the need for active tuning of actuator parameters.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 2022
Accession Number
AD1176302

Entities

People

  • Efe Ozkaya
  • Jun Ueda
  • Mehmet Kurt
  • Waiman Meinhold

Organizations

  • Georgia Tech

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Accuracy
  • Algorithms
  • Biomedical Engineering
  • Biomedical Research
  • Computer Simulations
  • Engineering
  • Finite Element Analysis
  • Frequency
  • Magnetic Resonance
  • Patent Applications
  • Prostheses And Implants
  • Resonance
  • Resonant Frequency
  • Secondary Waves
  • Simulations
  • Students
  • Waves

Fields of Study

  • Physics

Readers

  • Medical Imaging.
  • Neurotrauma and Rehabilitation Medicine.
  • Robotics and Automation.