Comparison of Whole Body DWI to FDG PET

Comparison of Whole Body DWI to FDG PET Using PET/MRI

This is a single arm prospective trial that evaluates whole body diffusion weight imaging (DWI) compared to 18F-fludeoxyglucose (FDG) Positron Emission Tomography with Magnetic resonance imaging (PET/MRI) in participants with known metastatic cancer.

PRIMARY OBJECTIVE:

I. Correlation of DWI and FDG to detect disease.

SECONDARY OBJECTIVE:

I. Inter-reader variability of DWI interpretation by region.

OUTLINE:

Participants will be imaged at a single timepoint using whole body DWI concurrent with FDG PET/MRI within 60 days of receiving a non-FDG PET (either PET/CT or PET/MRI). There will be an optional PET/MRI performed within six months of the original study. Participants will be followed up through a medical records review for up to two years.

Inclusion Criteria:

1. Age ≥ 18 years.
2. Non FDG PET imaging study scheduled to be performed within 60 days (before or after) of the research PET/MRI.
3. Ability to understand a written informed consent document, and the willingness to sign it.
4. Diagnosis of metastatic cancer.

Exclusion Criteria:

1. Unlikely to comply with protocol procedures, restrictions and requirements and judged by the Investigator to be unsuitable for participation.
2. Individuals with contraindications to MRI. This will be determined through review of the UCSF MRI screening form by qualified site personnel