Table 3 Conventional PET parameters by different Cluster.

From: A proof of concept study of 18F-FDG PET/CT patient-level radiomics identify refractory/relapsed diffuse large B-cell lymphoma

PET

Parameters

Cluster 1

(n = 50)

Cluster 2

(n = 65)

Cluster 3

(n = 17)

p value

SUVmax

20.36 (12.91,26.94)

13.53 (6.76,23.24)

16.09 (9.51,23.05)

0.011

SUVmean

7.70 (5.78,10.21)

5.20 (2.81,8.04)

6.22 (4.69,10.68)

0.008

SUVstd

2.72 (1.44,4.27)

1.81 (0.80,4.75)

2.39 (1.22,4.38)

0.532

COV

0.33 (0.24,0.43)

0.39 (0.24,0.52)

0.34 (0.32,0.43)

0.241

Dmax

33.00 (20.03,45.38)

25.90 (13.50,38.40)

16.50 (9.00,23.00)

0.008

DmaxVox

41.35 (28.07,56.72)

27.60 (17.10,44.80)

22.40 (15.20,31.70)

0.001

MTV

520.63 (348.75,1174.71)

56.00 (27.00,103.50)

82.00 (35.00,131.00)

< 0.001

TLG

4373.00 (2298.00,7737.25)

262.00 (85.00,642.00)

355.00 (114.00,540.00)

< 0.001

  1. Data expressed as median with IQR in parentheses.