Vasculitis & Sarcoidosis PET/CT
18F-FDG≈ 15 min on the scanner
In simple words
Inflamed tissue is metabolically busy tissue. PET/CT shows which arteries or organs are actively inflamed right now, rather than the permanent damage inflammation has already left behind. That distinction matters when the decision is whether to keep a patient on steroids or safely taper them off.
Questions this scan answers
- Are the large blood vessels inflamed (Takayasu, giant cell arteritis)?
- How many organs does the sarcoidosis involve?
- Is the inflammation settling on treatment?
The Prismaa difference
Vessel-wall uptake is subtle and graded against liver background. Consistent, quantitative digital images make follow-up comparisons meaningful.
Usually recommended for
- Suspected large-vessel vasculitis
- Sarcoidosis staging, including cardiac sarcoidosis
- IgG4-related disease and other systemic inflammatory conditions
How to prepare
- Fasting for 6 hours; for suspected cardiac sarcoidosis a special high-fat, no-carbohydrate diet is required for 24 hours beforehand — we will provide the diet sheet.
- Tell us your current steroid dose; ideally the scan is done before steroids are started or increased.
Book this scan, or ask us whether it is the right one
We are happy to discuss the request with your treating doctor before you commit to an appointment.