Preoperative Computed Tomography Evaluation in Sinus Surgery: A Template-Driven Approach

With the increased availability of thin-cut computed tomography (CT) scans; and the ability to view anatomic variations in the coronal, axial, and sagittal planes, detailed knowledge of a patient’s anatomy is available before surgery. This article presents a template-driven, methodical approach to CT evaluation of anatomic ‘‘danger zones’’ as well as other areas pertinent to planning for surgery on the paranasal sinuses.