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Quantitative Magnetic Resonance Imaging of Skeletal Muscle Disease
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Published on: December 18, 2016

Brain characterization using normalized quantitative magnetic resonance imaging.

Jan B M Warntjes1, Maria Engström, Anders Tisell

  • 1Center for Medical Image Science and Visualization, CMIV, Linköping University, Linköping, Sweden.

Plos One
|August 14, 2013
PubMed
Summary
This summary is machine-generated.

This study introduces a new method combining rapid quantitative Magnetic Resonance Imaging (qMRI) and brain normalization to create reference brain maps. This approach effectively detects significant tissue differences in patients, aiding in disease diagnosis.

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Area of Science:

  • Neuroimaging
  • Quantitative Magnetic Resonance Imaging (qMRI)

Background:

  • Quantitative MRI (qMRI) provides detailed tissue properties.
  • Brain normalization is crucial for comparing across subjects.

Purpose of the Study:

  • To develop a novel method for generating reference brain maps using rapid qMRI and normalization.
  • To enable detection of localized and global tissue differences in patients.

Main Methods:

  • Rapid qMRI acquired longitudinal relaxation rate (R1), transverse relaxation rate (R2), and proton density (PD).
  • Data from 32 healthy subjects and one Multiple Sclerosis (MS) patient were analyzed.
  • Linear affine registration normalized maps to a standard template; differences were calculated against healthy controls and an MS patient.

Main Results:

  • Reference map variations were highest at brain edges and ventricles, moderate in grey matter, and lowest in white matter.
  • An elderly subject showed lower R1/R2 and higher PD in sulci.
  • The MS patient exhibited lower R1/R2 and higher PD in periventricular white matter, capsules, and MS lesions.

Conclusions:

  • Brain normalization of rapid qMRI is a promising technique.
  • This method facilitates the generation of reference brain maps.
  • It enables automatic detection of deviating tissue properties in neurological conditions.