\begin{table}[ht]
\centering
\caption{Ablation study of the Noise Modulation Block (NMB). 
We report mean Dice and IoU scores (mean $\pm$ std) across $5$ runs. 
Reported $p$–values correspond to Wilcoxon signed-rank tests comparing each variant with the Full NMB model. Significance levels: $\dagger$ $p < 10^{-5}$}
\label{tab:nmb_ablation}
\resizebox{0.85\columnwidth}{!}{%
\begin{tabular}{lcccccc}
\toprule
\multirow{2}{*}{\textbf{Model Variant}} &
\multicolumn{3}{c}{\textbf{CAMUS}} &
\multicolumn{3}{c}{\textbf{BUS--BRA}} \\
\cmidrule(lr){2-4} \cmidrule(lr){5-7}
& Dice $\uparrow$ & IoU $\uparrow$ & $p$--value & Dice $\uparrow$ & IoU $\uparrow$ & $p$--value \\
\midrule
\textbf{Full NMB (Residual + Variance)} 
& \textbf{0.940 $\pm$ 0.008} & \textbf{0.891 $\pm$ 0.012} & -- 
& \textbf{0.931 $\pm$ 0.013} & \textbf{0.877 $\pm$ 0.022} & -- \\
Residual  Only 
& 0.926 $\pm$ 0.009 & 0.869 $\pm$ 0.011 & $\dagger$ 
& 0.881 $\pm$ 0.014 & 0.829 $\pm$ 0.023 & $\dagger$ \\
Variance Only 
& 0.929 $\pm$ 0.010 & 0.871 $\pm$ 0.011 & $\dagger$ 
& 0.886 $\pm$ 0.014 & 0.834 $\pm$ 0.021 & $\dagger$ \\
No NMB 
& 0.921 $\pm$ 0.011 & 0.867 $\pm$ 0.013 & $\dagger$
& 0.891 $\pm$ 0.019 & 0.848 $\pm$ 0.025 & $\dagger$ \\
\bottomrule
\end{tabular}
}
\end{table}
\FloatBarrier