Frontal Sinus Pattern and Evaluation of Right and Left Frontal Sinus Volume According to Gender, Using Multi Detector CT Scan

Abstract

Background: Frontal sinuses are pneumatic cavities that radiologically revealed in 5 or 6 years old and completed in 20 years old. Comparison of the frontal sinus has significant value to establish identification. The purpose of this study was to comparison of frontal sinus and assessment of right and left frontal sinus volume according to gender by using Multi Detector CT scan (MDCT). Materials and Methods: Sixty five consecutive men’s and women’s patients who underwent paranasal CT scans from September 2014 to April 2016 were identified from our institutional imaging database. Height, depth, and width of frontal sinuses were measured and a cubical approximation of volume determined by using Digimizer Image Analyzer. Result: Right and left frontal sinus were observed in 44 individuals (67.8%). Right frontal sinus was absent in 6 individuals (9.2%) and left frontal sinus was absent in 3 individuals (4.6%). Both of frontal sinus were absent in 9 individuals (13.8%). Right and left frontal sinus were not separate (integration) in 3 individuals (4.6%). Lack of frontal sinus frequency was higher in men and sinus integration was seen only in women .The average volume in left sinus was significantly higher than the right (P=0.02). Average volume of both the right (P=0.04) and the left (P=0.02) frontal sinus in males were significantly more than females. Conclusion: We found that the frontal sinus patterns had considerable individual variation. Right and left frontal sinus volumes were variable according to gender by using CT scan.