ABSTRACT: To measure the ostium area of normal maxillary sinus and maxillary sinus with inflammation on virtual endoscopy.
After scanning on coronal or axial position, data were transferred to workstation. Such anatomic structures as ostiomeatal complex (OMC) were viewed by virtual endoscopy (VE). Under the same condition, pixel/mm was worked out.
Turbinates, meati and ostiomeatal complex were clearly viewed by virtual endoscopy(VE). The area of normal maxillary ostium was (16.45 +/- 1.21) mm2; the area of abnormal ostium was (18.28 +/- 2.12) mm2. The outside area of ethmoid infundibulum was (15.07 +/- 0.78) mm2 with normal maxillary sinus, and (17.19 +/- 1.59) mm2 maxillary sinus with inflamed.
The areas of mormal and inflamed maxillary sinuses are equal, the outside areas of ethmoid infundibulum are unequal for normal maxillary sinus and maxillary sinus with inflammation.
Zhonghua er bi yan hou ke za zhi 03/2002; 37(1):38-40.