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FIG 1. 3D volume rendering beginning 15 seconds after the start of injection (A) with and (B) without cranial bones. C, Shown 7 seconds after the start of injection. D, Slightly enhanced visualization of the superior sagittal sinus and inferior sagittal sinus (arrow) increasing gradually from 12 seconds after the start of injection. E, Optimum visualization of the superior sagittal sinus and inferior sagittal sinus 16 seconds after the start of injection. F, Decrease in enhancement of the superior sagittal sinus at 25 seconds after the start of injection. 1, dorsal cerebral veins; 2, carotid artery; 3, transverse facial artery; 4, sagittal venous sinus; 5, lingual artery; 6, caudal auricular artery; 7, infraorbital artery; 8, ophthalmic venous sinus; 9, supraorbital vein.
