- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01737606
Ultrasonic Explorations of Cerebral Tissue Motions - Influence of Aging (COSTUM)
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Main objective
Phase 1:
-Study the in-vivo development of ultrasonic method in terms of quality of the acquisitions and intra-operator reproducibility.
Study the ease of positioning in relation to MRI and fusion of MRI and FCPI data via the neuro-navigation system
Phase 2:
-Study the variability of cerebral pulsatility of measured by "Fast Cerebral Pulsatility Imaging" or FCPI with age.
Secondary objectives
- Compare the results of displacements cartography's and vascular cartography obtained by MRI (especially by Arteriel Spin Labelling = ASL)
- Compare results of FCPI with results of cognitive tests of aging separating fluid functions (prefrontal) and functions called crystallized; and study the residual effect of age on cognitive tasks and speed of cognitive processing after taking into account the effect of the cerebral pulsatility
- Compare results of FCPI with electrophysiological measures (PE EEG) describing the attentional control
- Perform an exploratory analysis to highlight the propagating part of the brain displacement maps
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
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Tours, France, 37044
- University Hospital of Tours
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Patient at least 18 years old
- Informed consent form signed
- Person affiliated to a medical insurance
- Male or female
- No smoking the day of the inclusion
- Right handed: Edinburgh test ≥0.8 (subjects of phase 2)
- MMS score ≥ 27 and 5 words score = 10 (subjects of phase 2)
- Socio-educational level greater than or equal to 8 years of school (subjects of phase 2)
Exclusion Criteria:
- Pregnant women, lactating women or women without reliable contraception
- Contraindications to IRM for patients with: ocular metallic foreign object; any electronic medical device implanted by irremovable way (pacemakers, neuro-stimulator, cochlear implants ...); metallic heart valve, old heart valves are specially an absolute contraindication because of risk of dysfunction; vascular clips implanted formerly on brain aneurysm
- Acute medico-surgical condition dating from less than 3 months
- Neurological and neuro-surgical pathology such as: toxic, infectious or inflammatory encephalopathy, epilepsy, intracranial arteriovenous malformation known, intracranial tumor or hydrocephalus known, operated or no, history of ischemic or hemorrhagic stroke, transient or not
- Treatments or pathology that could influence the results of the research: heart failure (dyspnea with stage III or IV NYHA) or non-sinus cardiac rhythm, use of central analgesics or psychotropic drugs
- Psychiatrics disorders of axe 1 of DSM IV, based on MINI (subjects of phase 2)
- Major subject with a legal protection measure
- Subject to exclusion period of any other biomedical research
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Health Services Research
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
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Experimental: echography
Fast Cerebral Pulsatility Imaging
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Cerebral ultrasonic exploration using with neuro-navigation system : 4 acquisitions on 12 or 6 section planes
Other Names:
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Phase 1 : to validate the technical procedure, we will appreciate several parameters
Time Frame: up to 8 days after consent
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up to 8 days after consent
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Phase 2 : the primary outcome measures will be the maximum amplitude and the average amplitude of cerebral movements
Time Frame: up to 8 days after consent
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We hypothesize that the variables describing the FCPI will decrease with age.
The primary outcome measures will be the maximum amplitude and the average amplitude of cerebral movements measured in µm in planes chosen previously (for example plan of Circle of Willis and a plane including the dorsolateral area of prefrontal cortex).
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up to 8 days after consent
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Phase 2 : Maps of cerebral displacementand tissular perfusion maps
Time Frame: up to 8 days after consent
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Maps of cerebral displacement obtained by ultrasounds (amplitudes in µm and location in mm) and tissular perfusion maps obtained by Arterial Spin Labelling (Cerebral Blood Flow in µL.g-1.mn-1)
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up to 8 days after consent
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Phase 2 : Measures of FCPI on the regions of interest and cognitive tests
Time Frame: up to 8 days after consent
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Measures of FCPI on the regions of interest: amplitude (maximum displacement values, µm) and location x, y, z, of the location of this maximum in mm, or distance to a region of interest) on the hand and cognitive tests on the other hand expressed with a numerical score for each test.
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up to 8 days after consent
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Phase 2 : Measures of FCPI on the regions of interestand measures of PE EEG
Time Frame: up to 8 days after consent
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Measures of FCPI on the regions of interest: amplitude (maximum displacement values, µm) and location x, y, z, of the location of this maximum in mm, or distance to a region of interest) on the hand and measures of PE EEG on the other hand expressed in terms of amplitude (µV), latency (ms), duration (ms)
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up to 8 days after consent
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Phase 2 : The signal to noise ratio
Time Frame: up to 8 days after consent
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The signal to noise ratio of maps speed (m/s) and attenuation α (cm-1) of the shear wave obtained by mathematical processing of displacement maps
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up to 8 days after consent
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Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Frédéric PATAT, MD, University Hospital of Tours
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Other Study ID Numbers
- PHAO 2012 - FP / COSTUM
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