Radiologists are medical doctors that specialize in diagnosing and treating injuries and diseases using medical imaging (radiology) procedures (exams/tests) such as X-rays, computed tomography (CT), magnetic resonance imaging (MRI), nuclear medicine, positron emission tomography (PET) and ultrasound.

This is the scan used in hospital to assess pregnant mothers, but can also be used to assess inflammation within joints or elsewhere.

It is a simple scan, often performed during clinic, that gives extra information about inflammation and any tissue damage.