Abstract
Background and Objectives: Both 2-dimentional and 3-dimentional computerized tomographies (CT) are useful for measurement of tissue volume and reconstruction of maxillofacial areas. The aim of this study was to compare these two modalities for volumetric measurement of maxillary sinus.
Materials and Methods: This study was done on four human skulls obtained from the collections of department of anatomy. Sinus walls were sealed by rose wax and then actual volume of the sinuses were measure by water injection, as our gold standard. This measurement was performed three times for each sinus and the mean values of measurements were calculated. The skulls were also assessed radiologically by two dimensional and three dimensional CT. The results were compared by statistical methods.
Results: No significant difference was found between two-dimensional and three dimensional CT measurement with actual sinus volume (P>0.05). The difference between two aforementioned CT methods was also insignificant (P > 0.05).
Conclusion: Volumetric measurements of maxillary by sinus two-dimensional and three-dimensional reconstructed image methods are reliable and accurate.