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Table 2 Averaged relative difference \( \left({\boldsymbol{\varepsilon}}_{\boldsymbol{x}}^{\mathbf{rel}}\right) \) (Equation 1 ) of SUV mean and max

From: Dental artifacts in the head and neck region: implications for Dixon-based attenuation correction in PET/MR

ROI \( {\boldsymbol{\varepsilon}}_{\mathbf{mean}}^{\mathbf{rel}} \) (± std)% Range [%] \( {\boldsymbol{\varepsilon}}_{\mathbf{max}}^{\mathbf{rel}} \) (± std)% Range [%]
GroupINNER: internal signal void
 Inpainted area −57 (10) −82 to −23 −26 (11) −49 to −3.3
 Lower tongue −1.6 (6.0) −29 to 10 −1.0 (4.8) −23 to 10
 Tongue −3.4 (10) −82 to 6.1 −1.6 (8.6) −70 to 4.5
 Masticatory muscles 0.5 (1.0) −2.8 to 4.5 0.3 (1.1) −3.2 to 4.1
 Cerebellum −0.1 (0.1) −0.4 to 0.0 0.0 (0.8) −2.3 to 4.5
GroupOUTER: signal void affecting exterior body contour
 Inpainted area −48 (10) −78 to −26 −24 (10) −58 to −5.4
 Lower tongue −29 (30) −90 to 1.4 −23 (26) −79 to 4.4
 Tongue −30 (29) −89 to 2.0 −22 (25) −84 to 3.4
 Masticatory muscles −1.8 (5.4) −11 to 17 −2.7 (4.6) −9.9 to 17
 Cerebellum −1.8 (1.6) −7.0 to 0.1 −1.8 (2.2) −11 to 2.4