Nesibe Gül Yüksel Aslier1,2, Nuri Karabay3, Gülşah Zeybek4, Pembe Keskinoğlu5, Amaç Kiray4, Semih Sütay6, Mustafa Cenk Ecevit6. 1. Department of Otorhinolaryngology, Dokuz Eylul University School of Medicine, Izmir, Turkey. nesibe.gul.yuksel@gmail.com. 2. Silopi Devlet Hastanesi, Yenişehir Mah. 8. Cadde. No:73, Silopi, Şırnak, Turkey. nesibe.gul.yuksel@gmail.com. 3. Department of Radiology, Dokuz Eylul University School of Medicine, Izmir, Turkey. 4. Department of Anatomy, Dokuz Eylul University School of Medicine, Izmir, Turkey. 5. Department of Biostatistics, Dokuz Eylul University School of Medicine, Izmir, Turkey. 6. Department of Otorhinolaryngology, Dokuz Eylul University School of Medicine, Izmir, Turkey.
Abstract
PURPOSE: We aimed to define the classification of frontal sinus pneumatization patterns according to three-dimensional volume measurements. METHODS: Datasets of 148 sides of 74 dry skulls were generated by the computerized tomography-based volumetry to measure frontal sinus volumes. The cutoff points for frontal sinus hypoplasia and hyperplasia were tested by ROC curve analysis and the validity of the diagnostic points was measured. RESULTS: The overall frequencies were 4.1, 14.2, 37.2 and 44.5 % for frontal sinus aplasia, hypoplasia, medium size and hyperplasia, respectively. The aplasia was bilateral in all three skulls. Hypoplasia was seen 76 % at the right side and hyperplasia was seen 56 % at the left side. The cutoff points for diagnosing frontal sinus hypoplasia and hyperplasia were '1131.25 mm(3)' (95.2 % sensitivity and 100 % specificity) and '3328.50 mm(3)' (88 % sensitivity and 86 % specificity), respectively. CONCLUSIONS: The findings provided in the present study, which define frontal sinus pneumatization patterns by CT-based volumetry, proved that two opposite sides of the frontal sinuses are asymmetric and three-dimensional classification should be developed by CT-based volumetry, because two-dimensional evaluations lack depth measurement.
PURPOSE: We aimed to define the classification of frontal sinus pneumatization patterns according to three-dimensional volume measurements. METHODS: Datasets of 148 sides of 74 dry skulls were generated by the computerized tomography-based volumetry to measure frontal sinus volumes. The cutoff points for frontal sinus hypoplasia and hyperplasia were tested by ROC curve analysis and the validity of the diagnostic points was measured. RESULTS: The overall frequencies were 4.1, 14.2, 37.2 and 44.5 % for frontal sinus aplasia, hypoplasia, medium size and hyperplasia, respectively. The aplasia was bilateral in all three skulls. Hypoplasia was seen 76 % at the right side and hyperplasia was seen 56 % at the left side. The cutoff points for diagnosing frontal sinus hypoplasia and hyperplasia were '1131.25 mm(3)' (95.2 % sensitivity and 100 % specificity) and '3328.50 mm(3)' (88 % sensitivity and 86 % specificity), respectively. CONCLUSIONS: The findings provided in the present study, which define frontal sinus pneumatization patterns by CT-based volumetry, proved that two opposite sides of the frontal sinuses are asymmetric and three-dimensional classification should be developed by CT-based volumetry, because two-dimensional evaluations lack depth measurement.
Authors: R Shane Tubbs; Scott Elton; George Salter; Jeffrey P Blount; Paul A Grabb; W Jerry Oakes Journal: J Neurosurg Date: 2002-02 Impact factor: 5.115
Authors: Ertugrul Tatlisumak; Mahmut Asirdizer; Aydin Bora; Yavuz Hekimoglu; Yasin Etli; Orhan Gumus; Siddik Keskin Journal: Saudi Med J Date: 2017-01 Impact factor: 1.484