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Table 2 Positive and negative predictive values for FDG-PET/CT by indication at 24-months

From: Two decades of FDG-PET/CT in seminoma: exploring its role in diagnosis, surveillance and follow-up

Cohort

Setting

Indication

Positive predictive value (%)

Negative predictive value at 24-months (%)

Stage 1

Baseline

Total: Routine or clinical suspicion#

NA

95.7

Active surveillance

Total: Routine, clinical suspicion or unknown

100

91.1

Routine

100

93.6

Clinical suspicion#

100

85.7

Advanced

Baseline

Total: Routine or clinical suspicion#

100

0

Follow-up

Total: Routine, clinical suspicion#or post-treatment

77.1

90.9

Routine

42.9

100

Clinical suspicion#

100

93.8

Post-treatment*

60

89.1

  1. #including radiological abnormality on existing imaging, elevation of serum tumour markers or symptoms.
  2. *Inclusive of patients with and without residual mass post-chemotherapy.