Optimization of MR pulse sequences for Bayesian image segmentation

Jerry L. Prince, Dzung Pham

Research output: Contribution to journalArticle

Abstract

A method for optimizing MR imaging pulse sequence parameters in a statistical framework is presented. Parameters are defined to be optimal when the resulting scalar images yield optimal image segmentations using Bayesian pixel classification. Thus, Bayes risk is used as the objective function to minimize. Approximations are made to give a tractable solution in a four-step procedure. A sample calculation is carried out to determine the optimal TR and flip angle for scalar SPGR imaging of the brain. Overall, this paper gives a new approach to optimize MRI pulse sequences for the specific objective of improved image segmentation.

Original languageEnglish (US)
Pages (from-to)1651-1656
Number of pages6
JournalMedical physics
Volume22
Issue number10
DOIs
StatePublished - Oct 1995

Keywords

  • Bayesian
  • classification
  • image segmentation
  • magnetic resonance imaging
  • pulse sequences

ASJC Scopus subject areas

  • Biophysics
  • Radiology Nuclear Medicine and imaging

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