Brain SPET and auditory cortex perfusion. Technical notes and preliminary results

Nucl Med Commun. 1994 Jul;15(7):565-8. doi: 10.1097/00006231-199407000-00013.

Abstract

Auditory cortex stimulation was studied by 99Tcm-hexamethylpropyleneamine oxime (HMPAO) single photon emission tomography (SPET) in 11 patients with normal vestibular and auditory tests, as well as computed tomography. Markedly increased temporal and parietal blood flows were found in left brain cortex, contralateral to the stimulus. The right auditory areas showed moderate hyperactivity. The method might be useful for tonotopic mapping of auditory cortex, using various pure tonal stimuli.

Publication types

  • Clinical Trial

MeSH terms

  • Acoustic Stimulation
  • Adult
  • Aged
  • Auditory Cortex / blood supply
  • Auditory Cortex / physiopathology*
  • Brain / diagnostic imaging*
  • Functional Laterality
  • Humans
  • Laryngeal Neoplasms / diagnostic imaging*
  • Middle Aged
  • Organotechnetium Compounds*
  • Oximes*
  • Pharyngeal Neoplasms / diagnostic imaging*
  • Regional Blood Flow
  • Technetium Tc 99m Exametazime
  • Temporal Lobe / blood supply
  • Temporal Lobe / diagnostic imaging*
  • Tomography, Emission-Computed, Single-Photon*

Substances

  • Organotechnetium Compounds
  • Oximes
  • Technetium Tc 99m Exametazime