- Graft rejection is best demonstrated by MRI
- T1 drop in signal to similar to skeletal muscle
- T2 signal similar to fluid
- Perfusion studies will demonstrate decreased blood flow
- Acute rejection: Gland will be swollen with patchy areas of decreased attenuation
- Chronic rejection: gland is diffusely hyper echoic and reduced in size
- Tc 99m DTPA is also useful with 86% sensitivity
- Transplant pancreatitis and perigraft collection is not uncommon