Figure 11c. Chronic sinusitis imaged with multisection CT (1.0-mm section thickness). (a) Sagittal image obtained with image viewing software (SurView; Surdex, St Louis, Mo) shows that the multisection acquisition will avoid dental hardware and the associated artifacts. (b, c) Coronal (b) and sagittal (c) reformation images show mucoperiosteal thickening.