Neuroimaging of HIV-associated neurocognitive disorders (HAND)

Beau M. Ances, Dima A. Hammoud

Research output: Contribution to journalReview article

Abstract

Purpose of review HIV enters the brain after initial infection, and with time can lead to HIV-associated neurocognitive disorders (HAND). Although the introduction of combination antiretroviral therapy has reduced the more severe forms of HAND, milder forms are still highly prevalent. The 'gold standard' for HAND diagnosis remains detailed neuropsychological performance testing but additional biomarkers (including neuroimaging) may assist in early detection of HAND. Recent findings We review the application of recently developed noninvasive MRI and PET techniques in HIV+ individuals. In particular, magnetic resonance spectroscopy may be more sensitive than conventional MRI alone in detecting HIV associated changes. Diffusion tensor imaging has become increasingly popular for assessing changes in white matter structural integrity due to HIV. Both functional MRI and PET have been limitedly performed but could provide keys for characterizing neuropathophysiologic changes due to HIV. Summary It is hoped that continued progress will allow novel neuroimaging methods to be included in future HAND management guidelines.

Original languageEnglish (US)
Pages (from-to)545-551
Number of pages7
JournalCurrent opinion in HIV and AIDS
Volume9
Issue number6
DOIs
StatePublished - Jan 1 2014

Keywords

  • Diffusion tensor imaging
  • Functional MRI
  • HIV
  • Neuroimaging
  • PET
  • Volumetrics

ASJC Scopus subject areas

  • Immunology
  • Hematology
  • Oncology
  • Oncology(nursing)
  • Infectious Diseases
  • Virology

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