. Author manuscript; available in PMC: 2026 Feb 18.

Published in final edited form as: IEEE Trans Med Imaging. 2026 Mar;45(3):1115–1126. doi: 10.1109/TMI.2025.3618247

TABLE IV.

Ablation studies on the LeqMod using Unet as a baseline. Metrics were averaged across all test cases from the three scanners.

	NRMSE (↓)	PSNR (↑)	SSIM (↑)	SUV_mean bias (%) (o)	SUV_max bias (%) (o)	TLG bias (%) (o)
Baseline	0.339±0.413	52.197±7.094	98.941±2.095	−13.782±18.877	−18.105±22.735	−5.062±7.679
+LeMod	0.331±0.278	52.388±7.067	99.040±1.879	−12.802±17.650	−14.244±22.251	−4.072±6.079
+QuMod	0.322±0.634	52.510±7.137	99.103±1.454	−13.110±18.497	−16.779±21.947	−4.433±7.723
+LeqMod	0.314±0.279	52.555±7.156	99.135±1.378	−10.546±15.618	−12.190±19.778	−3.725±6.325

(↑), (↓) and (o) represent expecting higher, lower, and zero-approaching values, respectively.