Inclusion Criteria:

- Participant must successfully complete the MRI screening form

- Participant must be scheduled to undergo radioembolization for liver disease

- Participant must be ≥ 18 years of age

- Participant must be able to understand and willing to sign an Institutional Review
Board (IRB)-approved written informed consent document

Exclusion Criteria:

- Participant must not have any contraindications to MRI scanning

- Patient must not be pregnant or breastfeeding

- If agreeing to MRI contrast, participant must not have renal insufficiency
(glomerular filtration rate (GFR < 30 mL/min/1.73 m2) measured within the past 60
days

- If agreeing to MRI contrast, participant must not be on dialysis

- If agreeing to MRI contrast, participant must not have had a prior allergic reaction
to gadolinium-based contrast agents

- PET/MRI is not able to be scheduled within 72 hours of radioembolization