Examples of maximum intensity projections of baseline PETs in 4 different patients with R/R cHL. The model score was calculated based on the prognostic model using clinical and radiomics features. The outcome represents the clinical outcome of the patient. (A-B) Patients with a low prediction score with low risk of progressive disease. (C-D) Patients with a high prediction score with a high risk of progressive disease. m, months; PD, progressive disease.