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. 2021 May 22;31(12):8925–8936. doi: 10.1007/s00330-021-08026-1

Table 3.

Diagnostic value of WB-MRI versus the [18F]FDG-PET/CT-based reference standard for the early response assessment and restaging of paediatric Hodgkin’s lymphoma

Observed agreement (95% CI) Sensitivity (95% CI) Specificity (95% CI) PPV (95% CI) NPV (95% CI)
Early response assessment
MRI - DWI 29% (15/51, 19–43%) 92% (64–100%) 8% (2–21%) 26% (14–40%) 75% (19–99%)
MRI + DWI 65% (33/51, 51–76%) 54% (25–81%) 68% (51–82%) 37% (16–62%) 81% (64–93%)
Intrinsic MRI* 71% (36/51, 57–81%) 77% (46–95%) 68% (51–82%) 45% (24–68%) 90% (73–98%)
Restaging
MRI - DWI 38% (5/13, 18–64%) NA 45% (17–77%) NA 83% (36–100%)
MRI + DWI 69% (9/13, 42–87%) NA 82% (48–98%) NA 90% (55–100%)
Intrinsic MRI* 69% (9/13, 42–87%) NA 82% (48–98%) NA 90% (55–100%)

CI, confidence interval; DWI, diffusion-weighted imaging; MRI, magnetic resonance imaging; NA, not applicable, insufficient numbers to perform analysis; PPV, positive predictive value; NPV, negative predictive value. *Intrinsic MRI, WB-MRI DWI after removal of reader error