Research Article

Prospective Analysis of 18F-FDG PET/CT Predictive Value in Patients with Low Rectal Cancer Treated with Neoadjuvant Chemoradiotherapy and Conservative Surgery

Table 5

18F-FDG PET/CT results regarding (y)pTNM.

T complete respondersT partial/nonresponders
12/56 (21.5%)44/56 (78.5%)

SUVmax1 15.82 (7.11)18.72 (9.25)−1.003 0.320
SUVmean1 8.30 (3.60)9.45 (4.44)−0.825 0.413
SUVmax2 4.17 (1.98)7.38 (3.09)−4.353 0
SUVmean2 1.92 (0.98)3.38 (1.52)−3.976 0
ΔSUVmax 11.65 (6.72)11.33 (8.39)0.1210.904
ΔSUVmean 6.37 (3.50)6.01 (4.17)0.2740.785
RImax 70.32 (17.84)54.57 (22.14)2.260.027
RImean 73.73 (17.60)57.37 (24.78)2.5950.016

Mean values and standard deviations are reported.