Influence of visual and auditory masking on the brain glucose metabolism in an idiopathic tinnitus patient.
- Author:
Ming LI
1
;
Zhe-min HUANG
;
Chuan-tao ZUO
;
Jian-ning ZHANG
Author Information
- Publication Type:Journal Article
- MeSH: Adult; Auditory Cortex; metabolism; Brain; metabolism; Glucose; metabolism; Humans; Male; Positron-Emission Tomography; Tinnitus; diagnostic imaging; metabolism
- From: Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2012;47(9):720-723
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo study the influence of the audio-visual block (AB) on the brain glucose metabolism of idiopathic tinnitus patients.
METHODSThe brain positron emission tomography (PET) test was performed on one chronic idiopathic tinnitus patient under audio-visual block and non-block (NB) conditions respectively. The visual analysis and statistical parameter mapping (SPM) analysis were both used to detect the brain glucose metabolism difference under AB and NB conditions.
RESULTSUnder NB conditions, significant hyperactivity was detected at auditory and visual cortex on both sides of the brain. However, this phenomenon was not shown under AB conditions. Instead, a hyperactivity of brain was presented in the left Wernicke's area.
CONCLUSIONSThe generation of chronic idiopathic tinnitus probably has no relationship with the auditory cortex abnormity. Wernicke's area might be involved in the central perception of tinnitus.
