Parkinson Disease Clinical Trial
Official title:
The Use of Transcranial Focused Ultrasound for the Treatment of Neurodegenerative Dementias
The purpose of this open label study is to evaluate longer term tolerability and early efficacy of transcranial ultrasound in the treatment of patients with mild cognitive impairment or dementia.
The present study is designed as an open label study of patients with mild cognitive impairment (MCI) or dementia to evaluate longer term tolerability and early efficacy of transcranial ultrasound treatment. Baseline and outcome measures in this study utilize validated tests that are appropriate for repeated measures which are not affected by practice effects. For patients with amnestic predominant cognitive change, the target will be the mesial temporal lobe through a trans temporal scalp window. Targeting will include reference to scalp fiducials based on the obtained MRI and Transcranial Doppler (TCD) waveform confirmation will be obtained because of the ability of TCD to record Doppler signal from the posterior cerebral artery that runs medial to the mesial temporal lobe. On the day of the ultrasound appointment, patients will undergo ten to thirty minutes of transcranial ultrasound treatment. The sonification device will be aimed at the hippocampus or the putamen and substantia nigra, depending on the predetermined condition. Targeting will include reference to scalp fiducials based on the obtained MRI; confirmation of target accuracy will either be obtained by Doppler waveform confirmation or optical tracking technology which co-registers patient neuroimaging with real space. Patients will undergo 8 total sessions of focused ultrasound. Patients will be evaluated at baseline and upon final ultrasound treatment using the same measures obtained upon entry. Safety and any adverse events will be monitored closely. ;
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