Tammie L. S. Benzinger, MD, PhD
To identify factors that signal the transition from asymptomatic (preclinical) to symptomatic Alzheimer disease (AD).
The purpose of this research study is to evaluate the structure and function of the brain in healthy aging and early Alzheimer's disease using positron emission tomography (PET), magnetic resonance imaging (MRI), and computed tomography (CT) imaging. The study involves imaging the brain to detect the presence of amyloid deposits (plaques in the brain). Amyloid is a protein that may be related to dementia of Alzheimer's disease (DAT). This study will use radioactive tracers called C-11 Pittsburgh Compound B (PIB) and F 18/ AV-1451 (Flortaucipir) which binds to beta amyloid and tau in the brain…
Inclusion Criteria: * Male or female, any race * Age \> 18 years * Participation in one of the ongoing projects affiliated with the Knight ADRC at Washington University and referred by the MAP staff and a Washington University physician. * Normal cognition or early-stage symptomatic AD * Willing and able to undergo study procedures. * Capacity to give informed consent and follow study procedures Exclusion Criteria: * Has any condition that, in the Investigator's opinion, could increase risk to the participant, limit the participant's ability to tolerate the research procedures, or interfere…
A dosage range between 6.0 - 20.0 mCi (222-740 MBq) is planned for \[11C\] PIB. A PET-certified medical professional will prepare and administer the \[11C\] PIB tracer. Prior to the administration, the dosage will be assayed in a dose calibrator and diluted with 0.9% sodium chloride (normal saline) up to a total 20 mL syringe volume. Participants will receive a maximum intravenous bolus injection of 20.0 mCi of \[11C\] PIB followed by a 10 mL 0.9% sodium chloride (normal saline) flush.
A dosage range between 6.5 - 10.0 mCi (240-370MBq) is planned for \[18F\] AV-1451. A PET-certified medical professional will prepare and administer the \[18F\] AV-1451tracer. Prior to the administration, the dosage will be assayed in a dose calibrator. The volume of 18F-AV-1451 dose should not be adjusted by adding normal saline to the syringe. Participants will receive a maximum intravenous bolus injection of 10.0 mCi of \[18F\] AV-1451 followed by a 10 mL flush of 0.9% sodium chloride (normal saline).
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