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

Table 4

¹⁸F-FDG PET/CT results regarding TRG.

	TRG responders	TRG nonresponders	𝑡	𝑃
	23/56 patients (41.1%)	33/56 patients (58.9%)
SUVmax1	17.00 (7.91)	18.86 (9.51)	−0.769	0.445
SUVmean1	8.83 (4.09)	9.46 (4.44)	−0.538	0.593
SUVmax2	5.22 (2.84)	7.73 (3.00)	−3.140	0.003
SUVmean2	2.33 (1.29)	3.57 (1.50)	−3.220	0.002
ΔSUVmax	11.78 (7.28)	11.13 (8.58)	0.296	0.768
ΔSUVmean	6.50 (3.76)	5.80 (4.21)	0.633	0.529
RImax	65.72% (18.23)	52.52% (23.21)	2.278	0.027
RImean	70.18% (17.35)	54.39% (26.41)	2.698	0.009

Mean values and standard deviations are reported.