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Fig. 2 | BMC Medical Imaging

Fig. 2

From: Value of virtual monochromatic spectral image of dual-layer spectral detector CT with noise reduction algorithm for image quality improvement in obese simulated body phantom

Fig. 2

The eight simulated focal liver lesions (FLLs) in body phantom. a Four hypo-attenuating FLLs are noted. Two were high-contrast hypo-attenuating FLLs (white arrows) and other two are low-contrast hypo-attenuating FLLs (empty arrows). b Other four hyper-attenuating FLLs are presented. Likewise, two were high-contrast hyper-attenuating FLLs (white arrows) and other two were low-contrast hyper-attenuating FLLs (empty arrows). The conventional polychromatic images are reconstructed using hybrid iterative reconstruction algorithm (iDose4) in a level of 4 (a, b). VMI are reconstructed using spectral level 4 and presented in 60 keV (c, d). All images were applied DRI 19. FLL = focal liver lesion

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