Multimodal imaging of a mouse using the carbon-fiber sheet–resistive heater embedded in a 3D-printed, flat-base, multimodal imaging cradle. The skeleton, kidneys, and major vessels to the kidneys (*) are marked up. The skeleton (white) was imaged by CT, while 111In-citrate (red), 18F-fluorodeoxyglucose (purple), and gadodiamide (green) were used for SPECT, (PET)SPECT, and DCE-MRI of the kidneys, respectively. Each panel shows an additional layer of the coregistered, segmented image: CT + MRI (A), CT + MRI + SPECT (B), CT + MRI + (PET)SPECT (C), CT + MRI + (PET)SPECT + SPECT (D).