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Table 1 Median, mean, standard deviation (SD) for PET, perfusion, and diffusion parameters in either group with p values obtained using the Mann-Whitney test

From: Combined amino acid PET-MRI for identifying recurrence in post-treatment gliomas: together we grow

Parameters

Recurrence = 35

Mean, Median (SD)

Radiation necrosis = 13

Mean, Median (SD)

p value

TBRmax

1.83, 1.59 (1.05)

1.03, 1.02 (0.18)

.000

TBRmean

1.67, 1.57 (1.01)

0.90, 0.95 (0.30)

.000

SUVmax

4.72, 4.36 (2.15)

2.66, 2.64 (0.80)

.000

SUVmean

2.44, 2.15 (1.3)

1.52, 1.57 (0.70)

.019

rCBVratio

2.94, 2.00 (1.8)

0.99, 0.67 (0.94)

.001

ADCmean

0.78, 0.77 (0.14)

0.99, 0.95 (0.38)

.032

ADCratio

0.99, 0.96 (0.25)

1.49, 1.3 (0.73)

.004

  1. TBR tumor to background ratio, SUV standard uptake value, rCBV relative cerebral blood volume, ADC apparent diffusion co-efficient, SD standard deviation