Journal of Neuro-Oncology

, Volume 97, Issue 3, pp 419–423

Utility of functional diffusion maps to monitor a patient diagnosed with gliomatosis cerebri

  • Benjamin M. Ellingson
  • Scott D. Rand
  • Mark G. Malkin
  • Kathleen M. Schmainda
Case Report

Abstract

Diffusion-weighted magnetic resonance imaging (DWI) is a sensitive imaging biomarker for tumor cellularity. Functional diffusion maps (fDMs), which examine voxel-by-voxel changes in the apparent diffusion coefficient (ADC) calculated from serial DWIs, have previously been applied to regions of contrast-enhancement; however, application of fDMs to non-enhancing brain tumors has not been pursued. In this case study we demonstrate the utility of applying fDMs to regions of abnormal FLAIR signal intensity in a patient diagnosed with gliomatosis cerebri: a relatively rare, infiltrative, non-enhancing brain tumor. The absolute volume of hypercellularity extracted from fDMs was useful in tracking tumor growth, which correlated in time with a progressive decline in neurological status despite no change in traditional magnetic resonance images. Results of this study demonstrate the value of fDMs, applied to regions of FLAIR abnormal signal intensity, for localizing regions of hypercellularity and for monitoring overall tumor status.

Keywords

Gliomatosis cerebri Functional diffusion maps Diffusion MRI Non-enhancing glioma Cancer biomarkers 

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Copyright information

© Springer Science+Business Media, LLC. 2009

Authors and Affiliations

  • Benjamin M. Ellingson
    • 1
    • 2
    • 3
  • Scott D. Rand
    • 1
    • 2
  • Mark G. Malkin
    • 1
    • 3
    • 4
  • Kathleen M. Schmainda
    • 1
    • 2
    • 5
  1. 1.Translational Brain Tumor ProgramMedical College of WisconsinMilwaukeeUSA
  2. 2.Department of RadiologyMedical College of WisconsinMilwaukeeUSA
  3. 3.Department of NeurosurgeryMedical College of WisconsinMilwaukeeUSA
  4. 4.Department of NeurologyMedical College of WisconsinMilwaukeeUSA
  5. 5.Department of BiophysicsMedical College of WisconsinMilwaukeeUSA

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