Can a CT scan also scan for brain tumors?

Answered October 31, 2010 21:55. No, unfortunately a CT scan performed to evaluate the sinuses generally cannot be used to evaluate the brain for tumor. There are two reasons for this. First, the field-of-view of a sinus CT generally only includes the face and small portions of the front part of the brain; this view provides excellent evaluation of the sinuses but does not include the majority of the brain. Second, the computer algorithm used to reconstruct the images on a sinus CT emphasizes bony detail but this is suboptimal for evaluation of the brain.