About this trial
The overarching goal of this project is to develop and evaluate a single-tracer multiparametric positron emission tomography (PET) imaging solution for simultaneous imaging of blood flow and glucose metabolism using 18F-fluorodeoxyglucose (FDG) alone. The investigators working hypothesis is that quantitative blood flow can be extracted from dynamic 18F-FDG PET data by use of tracer kinetic modeling, in addition to glucose metabolism that 18F-FDG is conventionally used for.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Adults (age ≥ 18 years old)
Ability to understand and willingness to sign an informed consent form
Ability to adhere to the study visit schedule and other protocol requirements.
Willing and able to fast for at least 6 hours before and for the duration of the scan
Disqualifiers
Self-reported history of dysphoria or anxiety in closed spaces
Body weight >240 kg due to limitations of the scanner bed
Pregnant or breast-feeding (due to risks of ionizing radiation; urine pregnancy test will be administered prior to start of each PET/CT session for all participants between 18 to 60 years old who are able to get pregnant, unless documented hysterectomy or bilateral ovarian removal is available)
Blood glucose greater than 200 as assessed by fingerstick method before injection of 18F-FDG
Trial design
Single group
Treatments tested in this trial
18F-FDG
DrugEach subject will undergo a dynamic 18F-FDG PET/CT scan (this drug is FDA approved) and a dynamic 11C-butanol PET/CT scan (this drug is under an IND) on the EXPLORER total-body PET/CT system. The two scans will be performed on the same day or within a period of up to two weeks depending on subject, imaging agent and scanner availability.
11C-butanol
DrugEach subject will undergo a dynamic 18F-FDG PET/CT scan (this drug is FDA approved) and a dynamic 11C-butanol PET/CT scan (this drug is under an IND) on the EXPLORER total-body PET/CT system. The two scans will be performed on the same day or within a period of up to two weeks depending on subject, imaging agent and scanner availability.
Treatment groups
Trial outcomes
Primary outcomes
Blood Flow
The primary study endpoint is to evaluate if the blood flow estimated with 18F-FDG is quantitatively equal to the blood flow measured with the flow-dedicated tracer 11C-butanol measured in ml/min/g.
Secondary outcomes
Metabolism change when using Butanol
The secondary endpoint is to assess the changes in metabolism between healthy subjects and patients using Butanol tracer measured in SUV
Metabolism change when using FDG
The secondary endpoint is to assess the changes in metabolism between healthy subjects and patients using FDG tracer measured in SUV
Sponsors and contacts
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University of California, Davis
Lead sponsor
National Institute for Biomedical Imaging and Bioengineering (NIBIB)
Collaborator