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Table 2 Baseline PET parameters of discovery cohort (all patients treated with immunotherapy, n = 90)

From: 18F-FDG PET/CT based spleen to liver ratio associates with clinical outcome to ipilimumab in patients with metastatic melanoma

PET parameter

Mean

Median

Range

IQR

Tumoral SUV max

20.3

16.6

[2.2, 78.21]

12.12–23.74

SUV mean

6.9

6.1

[1.7, 18.92]

5.33–7.54

MTV (mL)

197.6

60.2

[0.03, 2694]

13.47–212.74

SLR

0.9

0.9

[0.669, 1.364]

0.81–0.97

  1. PET Positron emission tomography; IQR Interquarter range; SUVmax Maximum Standardised Uptake Value; SUVmean Mean Standardised Uptake Value; MTV Metabolic Tumour Volume; SLR Spleen to Liver Ratio