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Scientific article
Open access
English

Clinical Assessment of Emission- and Segmentation-Based MR-Guided Attenuation Correction in Whole-Body Time-of-Flight PET/MR Imaging

Published inThe Journal of nuclear medicine, vol. 56, no. 6, p. 877-883
Publication date2015
Abstract

The joint maximum-likelihood reconstruction of activity and attenuation (MLAA) for emission-based attenuation correction has regained attention since the advent of time-of-flight PET/MR imaging. Recently, we improved the performance of the MLAA algorithm using an MR imaging-constrained gaussian mixture model (GMM). In this study, we compare the performance of our proposed algorithm with standard 4-class MR-based attenuation correction (MRAC) implemented on commercial systems.

Keywords
  • Algorithms
  • Body Mass Index
  • Fluorodeoxyglucose F18/diagnostic use
  • Head and Neck Neoplasms/radionuclide imaging/radiotherapy
  • Humans
  • Image Processing, Computer-Assisted
  • Likelihood Functions
  • Magnetic Resonance Imaging
  • Middle Aged
  • Models, Statistical
  • Multimodal Imaging
  • Normal Distribution
  • Positron-Emission Tomography
  • Retrospective Studies
  • Tomography, X-Ray Computed
  • Whole Body Imaging
Citation (ISO format)
MEHRANIAN, Abolfazl, ZAIDI, Habib. Clinical Assessment of Emission- and Segmentation-Based MR-Guided Attenuation Correction in Whole-Body Time-of-Flight PET/MR Imaging. In: The Journal of nuclear medicine, 2015, vol. 56, n° 6, p. 877–883. doi: 10.2967/jnumed.115.154807
Main files (1)
Article (Published version)
accessLevelPublic
Identifiers
ISSN of the journal0161-5505
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182downloads

Technical informations

Creation12/03/2015 1:59:00 PM
First validation12/03/2015 1:59:00 PM
Update time03/14/2023 11:59:15 PM
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