HIGHER BRAIN FUNCTION AND AUTONOMIC NERVOUS SYSTEM : URINARY-EVOKED FUNCTIONAL BRAIN MAPPING USING 3D-SSP

点击翻译按钮获取中文摘要

SPECT brain imaging with special reference of bladder function was performed in 8 multiple system atrophy (MSA) patients (2 men, 6 women ; mean age, 61 years) and age-matched 5 normal control subjects (3 men, 2 women ; 62 years). In both groups imagings were obtained in 3 conditions ; empty bladder, storage, and micturition. 555 MBq of [^<99m>Tc]-labeled ECD was intravenously injected, which was immediately trapped and stabilized within the brain. Using NEUROSTAT software, which could also cancel morphologic differences between MSA and canonical brain, statistical difference between normalized mean tracer counts of both groups in each phase was calculated and visualized. In the storage phase, there was a significant decrease in tracer activity in bilateral cerebellar vermis, particularly of the right side in the MSA group (p<0.05), which is also known to be involved in the neural control of micturition. In the micturition phase, the area of decrease in tracer activity in the cerebellar vermis became wider in the MSA group. In the resting state, no statistically significance was seen between both groups. In conclusion, it is suggested that the decrease in tracer activity in the cerebellar vermis during urinary storage and micturition is contributing to the micturitional disturbance in this disorder.