Table 3.
Semi-quantitative imaging markers stratified by age
| Adult | Child | p-value | |
|---|---|---|---|
| SUVmax | |||
| MPNST | 11.56 [8.07–12.53] | 3.10 [2.96–3.25] | 0.037 |
| BPNST | 2.83 [1.56–4.41] | 2.22 [1.95–3.12] | 0.609 |
| Combined | 3.56 [1.77–4.65] | 2.24 [2.00–3.26] | 0.233 |
| SUVpeak | |||
| MPNST | 7.48 [6.62–10.49] | 2.14 [2.11–2.16] | 0.037 |
| BPNST | 2.10 [1.14–3.56] | 1.61 [1.36–2.09] | 0.464 |
| Combined | 2.68 [1.20–3.84] | 1.72 [1.37–2.14] | 0.163 |
| Delayed SUVmax | |||
| MPNST | 9.59 [8.30–10.89] | 2.53 [2.53–2.53] | 0.221 |
| BPNST | 2.85 [1.38–4.52] | 2.15 [1.53–2.41] | 0.777 |
| Combined | 3.60 [1.46–7.00] | 2.28 [1.69–2.50] | 0.430 |
| Delayed SUVpeak | |||
| MPNST | 7.44 [6.29–8.59] | 2.08 [2.08–2.08] | 0.221 |
| BPNST | 1.85 [1.08–3.33] | 1.65 [1.24–1.68] | 0.777 |
| Combined | 2.57 [1.12–4.58] | 1.67 [1.34–1.98] | 0.483 |
| TLmax | |||
| MPNST | 3.35 [2.74–5.40] | 1.76 [1.71–1.81] | 0.192 |
| BPNST | 0.95 [0.56–1.43] | 0.80 [0.70–1.09] | 0.675 |
| Combined | 1.09 [0.60–1.59] | 0.96 [0.72–1.56] | 0.947 |
| TLmean | |||
| MPNST | 5.97 [3.95–7.57] | 2.33 [2.32–2.35] | 0.117 |
| BPNST | 1.38 [0.82–2.15] | 1.13 [0.98–1.56] | 0.904 |
| Combined | 1.62 [0.87–2.70] | 1.21 [1.01–2.16] | 0.750 |
| SULmax | |||
| MPNST | 15.53 [11.65–18.51] | 4.25 [4.02–4.48] | 0.040 |
| BPNST | 3.93 [2.47–6.38] | 2.73 [2.37–4.44] | 0.265 |
| Combined | 4.72 [2.60–6.82] | 3.29 [2.48–4.57] | 0.105 |
| SULpeak | |||
| MPNST | 10.59 [8.23–15.54] | 2.92 [2.87–2.98] | 0.040 |
| BPNST | 3.45 [1.64–5.06] | 2.12 [1.65–2.90] | 0.235 |
| Combined | 4.09 [1.78–5.58] | 2.54 [1.68–2.97] | 0.082 |
| Delayed SULmax | |||
| MPNST | 10.62 [10.62–10.62] | 3.42 [3.42–3.42] | 0.317 |
| BPNST | 3.86 [1.91–6.69] | 2.39 [1.93–3.91] | 0.610 |
| Combined | 4.94 [1.95–7.69] | 2.90 [2.04–3.79] | 0.454 |
| Delayed SULpeak | |||
| MPNST | 7.80 [7.80–7.80] | 2.81 [2.81–2.81] | 0.317 |
| BPNST | 2.50 [1.50–5.28] | 1.88 [1.55–2.68] | 0.610 |
| Combined | 3.13 [1.55–6.03] | 2.28 [1.63–2.78] | 0.512 |
Table displaying semi-quantitative imaging markers stratified by age, with results for all PNSTs combined, for MPNST subgroup, and BPNST subgroup. Normal distributed data were described using means and standard deviations. Non-normal distributed data were described using medians and interquartile ranges. BPNST benign peripheral nerve sheath tumor; MPNST malignant peripheral nerve sheath tumor; SUV standard uptake value; SUL standard uptake value adjusted for lean body mass; TLmax tumor-to-liver maximal ratio; TLmean tumor-to-liver mean ratio