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. Author manuscript; available in PMC: 2023 Aug 9.
Published in final edited form as: Phys Med Biol. 2022 May 26;67(11):10.1088/1361-6560/ac6ebc. doi: 10.1088/1361-6560/ac6ebc

Table B5.

MAPE comparisons of mass densities between the reference and DECT parametric mapping models for a pelvic site with three tissue surrogates using a TBDE pelvis scan.

M701 Soft Tissue Spinal Cord Bone
Empirical Model 2.5 ± 2.0 3.3 ± 2.7 3.3 ± 2.2

Conventional ANN 2.6 ± 1.3 2.3 ± 1.5 7.2 ± 1.3
FCNN 1.0 ± 0.9 1.2 ± 1.4 4.7 ± 0.8
DFCNN 0.9 ± 0.9 1.0 ± 1.2 5.1 ± 1.0
RN-v1 1.0 ± 1.2 1.1 ± 1.8 4.2 ± 0.7
RN-v2 0.9 ± 0.9 1.1 ± 1.8 4.2 ± 0.6
DRN-v2 1.7 ± 1.8 2.5 ± 2.5 3.9 ± 1.4

Physics-informed ANN 1.2 ± 1.0 1.4 ± 1.1 5.6 ± 1.4
FCNN 1.0 ± 0.9 0.9 ± 1.1 4.7 ± 0.8
DFCNN 0.9 ± 0.9 1.1 ± 1.2 4.9 ± 0.8
RN-v1 0.9 ± 0.8 0.9 ± 1.4 4.6 ± 0.8
RN-v2 0.9 ± 0.9 1.2 ± 1.8 4.7 ± 1.0
DRN-v2 0.9 ± 0.8 1.0 ± 1.6 4.9 ± 1.1

M702 Soft Tissue Spinal Cord Bone

Empirical Model 2.3 ± 1.9 2.1 ± 1.8 3.2 ± 2.0

Conventional ANN 2.6 ± 1.2 1.6 ± 1.1 7.5 ± 1.2
FCNN 0.9 ± 0.9 0.7 ± 0.8 4.9 ± 0.8
DFCNN 0.8 ± 0.8 0.6 ± 0.8 5.3 ± 1.1
RN-v1 1.0 ± 1.1 0.7 ± 1.1 4.2 ± 0.8
RN-v2 0.9 ± 0.9 0.6 ± 0.9 4.2 ± 0.8
DRN-v2 1.6 ± 1.8 1.2 ± 1.4 4.2 ± 1.3

Physics-informed ANN 1.1 ± 0.9 1.0 ± 0.8 6.0 ± 1.3
FCNN 0.9 ± 0.8 0.5 ± 0.7 4.9 ± 0.8
DFCNN 0.9 ± 0.9 0.7 ± 0.8 5.0 ± 0.9
RN-v1 0.9 ± 0.8 0.6 ± 0.7 4.6 ± 0.9
RN-v2 0.8 ± 0.8 0.6 ± 0.8 4.7 ± 1.0
DRN-v2 0.9 ± 0.8 0.6 ± 0.8 5.0 ± 1.2