Score | Findings |
1 | No uptake |
2 | Uptake ≤ mediastinal blood pool |
3 | Uptake > mediastinal blood pool but ≤ liver |
4 | Uptake moderately more than liver uptake, at any site |
5 | Uptake markedly higher than liver (ie, 2 to 3 times the maximum SUV in the liver) and/or new lesions |
X | New areas of uptake unlikely to be related to lymphoma |
The Deauville score (also known as the 5-point scale) is a purely visual method of standardizing the interpretation of post-treatment PET scans for primary nodal lymphoma allowing for the comparison of scans performed using different machines at different centers. The Deauville score uses a patient's FDG uptake in the mediastinal blood pool and liver as an internal control. FDG uptake is always present in these 2 sites, with higher levels consistently seen in the liver. The Deauville score interprets FDG avidity of suspected disease (most intense uptake in a site of initial disease) in relation to FDG uptake in these 2 locations.
NOTE: If mediastinal blood pool activity is equal to or greater than activity in the liver, then the uptake within the lesion should be compared with that in the liver (uptake lesion < liver score 2; lesion = liver score 3).Do you want to add Medilib to your home screen?