Figure 1.
A 65-year-old man with pathologically confirmed pituitary adenoma.
Monochromatic CT images obtained at 75-keV energy level (a) Coronal arterial phase, (b) Sagittal arterial phase.(c) Coronal venous phase (d) Sagittal venous phase. iodine-based material decomposition images from single spectral CT acquisition (E) Coronal arterial phase, (F) Sagittal arterial phase.(G) Coronal venous phase (H) Sagittal venous phase.
Figure 2.
A 46-year-old man with pathologically confirmed sellar meningioma.
Monochromatic CT images obtained at 75-keV energy level (a) Coronal arterial phase, (b) Sagittal arterial phase.(c) Coronal venous phase (d) Sagittal venous phase. iodine-based material decomposition images from single spectral CT acquisition (E) Coronal arterial phase, (F) Sagittal arterial phase.(G) Coronal venous phase (H) Sagittal venous phase.
Figure 3.
Receiver operating characteristic curves for NIC, λHU and mean CT value in differentiating pituitary adenoma from sellar meningioma during AP and VP.
Table 1.
Quantitative Assessment of sellar meningiomas and pituitary adenomas at CT Spectral Imaging.
Table 2.
Thresholds, Sensitivities, and Specificities for Distinguishing sellar meningiomas from pituitary adenomas.