Non-Uniformly Sampled MR Correlated Spectroscopic Imaging in Breast Cancer and Nonlinear Reconstruction

Abstract

Magnetic Resonance Imaging (MRI) is an excellent anatomical tool to image tissue non-invasively. Dynamic contrast enhanced MRI (DCE-MRI) has excellent sensitivity but with varying specificity. MR Spectroscopy (MRS) enables biochemical characterization non-invasively of metabolites. Three major hypotheses are: (1) Accelerated 5-dimensional (5D)echo-planar imaging based correlated spectroscopic imaging (EP-COSI) acquisition produces multi-slice based multi-voxel two-dimensional (2D) MRS in a clinically feasible time. (2) Incorporating non-uniform under sampling (NUS) for spectral/spatial sampling into the 5D EP-COSI data acquisition and the group sparsity (GS)-based reconstruction will reduce the total acquisition time by at least a factor of 12.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 2017
Accession Number
AD1051165

Entities

People

  • Michael A Thomas

Organizations

  • University of California

Tags

DTIC Thesaurus Topics

  • Accuracy
  • Acquisition
  • Biomedical Research
  • Breast Cancer
  • Cancer
  • Data Acquisition
  • Health Care
  • Health Services
  • Magnetic Resonance
  • Medical Personnel
  • Metabolites
  • Neoplasms
  • Plant Oils
  • Reliability
  • Sequences
  • Two Dimensional
  • Waveforms

Fields of Study

  • Physics

Readers

  • Approximation Theory.
  • Medical Imaging.