VOLUMETRIC EVALUATION OF THE PARANASAL SINUSES
WITH THE CAVALIERI METHOD
SUMMARY
PURPOSE
Our aim was to estimate the volumes of paranasal sinuses with Cavalieri principle.
MATERIAL AND METHODS
The volumes of paranasal sinuses were estimated using the Cavalieri principle with coronal CT scans of 125 (68 male and 57 female) cases and analyzed by gender and age. The right-left comparison was also researched.
RESULTS
The mean volumes (± S.D.) of unilateral sinuses were 6.0 ± 4.3, 19.1 ± 6.1, 5.7 ± 1.5 and 7.1 ± 3.9 cm3 for the frontal, maxillary, ethmoidal and sphenoidal sinuses, respectively.
The volumes of paranasal sinuses were significantly different between the sexes (P < 0.05). There was no statistically significant difference between …show more content…
Because of the allergic and infectious diseases of the paranasal sinuses and nasal cavity, the sinonasal region is often radiologically imaged. It is important to know the paranasal sinus volumes in diagnosis, treatment, and follow-up of diseases such as infection, hypoplasia, sinus atelectasis, pneumosinus dilatans. Treatment methods, such as functional endoscopic sinus surgery, require that the volumes and detailed anatomy of the paranasal sinuses be well-known [1,3-6].
If a digital volumetric determination of the lesions using a CT computer is not possible, the ellipsoid and the Cavalieri method offer an alternative. The Cavalieri Estimator is more accurate than the Ellipsoid Method but takes longer [7,8]. In this study, we combined the Cavalieri principle of stereological methods with CT scanning technique.
The sum of the points that fell on the object, ΣPi, was then multiplied by the area associated with each point, ap (cm2), and the distance between slices, t (cm), to arrive at the volumes of related structures and organs, V (cm3). {V=ΣPi.ap.t} …show more content…
10. Garden AS, Roberts N. Fetal and fetal organ volume estimations with magnetic resonance imaging. Am J Obstet Gynecol 1996;175(2):442-48.
11. Karakas S, Kavakli A. Morphometric examination of paranasal sinuses and mastoid air cells using computed tomography. Ann Saudi Med 2005;25:1–6.
12. Uchida Y, Goto M, Katsuki T, Akiyoshi T. A cadaveric study of maxillary sinus size as aid in bone grafting of the maxillary sinus floor. J Oral Maxillofac Surg 1998;56:1158–63.
13. Rani SU, Rao GV, Kumar DR, Sravya T, Sivaranjani Y, Kumar MP. Age and gender assessment through three-dimensional morphometric analysis of maxillary sinus using magnetic resonance imaging. J Forensic Dent Sci. 2017 Jan-Apr;9(1):46.
14. Cohen O, Warman M, Fried M, Shoffel-Havakuk H, Adi M, Halperin D, Lahav Y. Volumetric analysis of the maxillary, sphenoid and frontal sinuses: A comparative computerized tomography based study. Auris Nasus Larynx. 2017 Mar 21. pii: S0385-8146(16)30403-5. doi: 10.1016/j.anl.2017.03.003.
15. Sanchez Fernandez JM, Anta Escuredo JA, Sanchez Del Rey A, Montoya FS. Morphometric study of the paranasal sinuses in normal and pathological conditions. Acta Otolaryngol
WITH THE CAVALIERI METHOD
SUMMARY
PURPOSE
Our aim was to estimate the volumes of paranasal sinuses with Cavalieri principle.
MATERIAL AND METHODS
The volumes of paranasal sinuses were estimated using the Cavalieri principle with coronal CT scans of 125 (68 male and 57 female) cases and analyzed by gender and age. The right-left comparison was also researched.
RESULTS
The mean volumes (± S.D.) of unilateral sinuses were 6.0 ± 4.3, 19.1 ± 6.1, 5.7 ± 1.5 and 7.1 ± 3.9 cm3 for the frontal, maxillary, ethmoidal and sphenoidal sinuses, respectively.
The volumes of paranasal sinuses were significantly different between the sexes (P < 0.05). There was no statistically significant difference between …show more content…
Because of the allergic and infectious diseases of the paranasal sinuses and nasal cavity, the sinonasal region is often radiologically imaged. It is important to know the paranasal sinus volumes in diagnosis, treatment, and follow-up of diseases such as infection, hypoplasia, sinus atelectasis, pneumosinus dilatans. Treatment methods, such as functional endoscopic sinus surgery, require that the volumes and detailed anatomy of the paranasal sinuses be well-known [1,3-6].
If a digital volumetric determination of the lesions using a CT computer is not possible, the ellipsoid and the Cavalieri method offer an alternative. The Cavalieri Estimator is more accurate than the Ellipsoid Method but takes longer [7,8]. In this study, we combined the Cavalieri principle of stereological methods with CT scanning technique.
The sum of the points that fell on the object, ΣPi, was then multiplied by the area associated with each point, ap (cm2), and the distance between slices, t (cm), to arrive at the volumes of related structures and organs, V (cm3). {V=ΣPi.ap.t} …show more content…
10. Garden AS, Roberts N. Fetal and fetal organ volume estimations with magnetic resonance imaging. Am J Obstet Gynecol 1996;175(2):442-48.
11. Karakas S, Kavakli A. Morphometric examination of paranasal sinuses and mastoid air cells using computed tomography. Ann Saudi Med 2005;25:1–6.
12. Uchida Y, Goto M, Katsuki T, Akiyoshi T. A cadaveric study of maxillary sinus size as aid in bone grafting of the maxillary sinus floor. J Oral Maxillofac Surg 1998;56:1158–63.
13. Rani SU, Rao GV, Kumar DR, Sravya T, Sivaranjani Y, Kumar MP. Age and gender assessment through three-dimensional morphometric analysis of maxillary sinus using magnetic resonance imaging. J Forensic Dent Sci. 2017 Jan-Apr;9(1):46.
14. Cohen O, Warman M, Fried M, Shoffel-Havakuk H, Adi M, Halperin D, Lahav Y. Volumetric analysis of the maxillary, sphenoid and frontal sinuses: A comparative computerized tomography based study. Auris Nasus Larynx. 2017 Mar 21. pii: S0385-8146(16)30403-5. doi: 10.1016/j.anl.2017.03.003.
15. Sanchez Fernandez JM, Anta Escuredo JA, Sanchez Del Rey A, Montoya FS. Morphometric study of the paranasal sinuses in normal and pathological conditions. Acta Otolaryngol