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Table 4 [18F]FDG PET parameters and response to neoadjuvant CTX. ΔMTV parameter was significantly associated with pathological response to Neo-CTX (Mann–Whitney test). IQR: interquartile range

From: [18F]FDG PET/CT for evaluating early response to neoadjuvant chemotherapy in pediatric patients with sarcoma: a prospective single-center trial

  Tissue Response to Neo-CTX ≤ 90% Tissue Response to Neo-CTX > 90% p value
IQR 25 Median IQR 75 IQR 25 Median IQR 75
PET1-SUVmax 6.0 8.4 10.6 5.1 7.9 11.2 0.949
PET1-SUVmean 2.4 4.0 4.8 2.9 4.5 5.1 0.652
PET1-SUVpeak 3.8 6.7 7.5 4.0 5.5 6.9 0.813
PET1-MTV 41.1 171.4 261.3 102.7 139.5 336.7 0.377
PET1-TLG 15.9 108.1 259.9 72.0 112.4 302.0 0.377
PET2-SUVmax 2.7 3.4 5.2 2.2 2.9 3.4 0.201
PET2-SUVmean 1.8 2.1 3.0 1.4 1.8 2.2 0.146
PET2-SUVpeak 2.3 2.8 4.5 1.8 1.9 2.9 0.146
PET2-MTV 54.7 101.7 176.1 34.8 67.2 103.4 0.310
PET2-TLG 31.7 44.3 172.1 19.4 46.1 80.6 0.683
Δ SUVmax − 64% − 57% − 11% − 85% − 59% − 36% 0.377
Δ SUVmean − 51% − 34% − 3% − 69% − 50% − 38% 0.102
Δ SUVpeak − 62% − 46% − 11% − 74% − 58% − 40% 0.234
Δ MTV − 52% − 34% − 14% − 87% − 59% − 35% 0.037
Δ TLG − 60% − 50% − 22% − 94% − 63% − 45% 0.051