Three-dimensional reconstruction of multidetector computed tomography images of paranasal sinuses of New Zealand rabbits

This study was conducted to produce a 3-dimensional reconstruction using multidetector computed tomography (MDCT) images of the anatomic structures forming the paranasal sinuses of New Zealand rabbits and to present biometric properties of the sinuses and conchae. A total of 16 adult New Zealand rabbits, comprising 8 males and 8 females, were included in the study. After high-resolution MDCT images of the paranasal sinuses were obtained, they were reconstructed using a 3-dimensional modeling program (Mimics) by overlapping the images and the biometric measurements of the structures forming the paranasal sinuses. The maxillary sinuses of New Zealand rabbits were made up of 2 compartments. It was also observed that their conchae were more developed with an uneven structure. The frontal sinus and sphenoid sinus were not seen and the ethmoid sinus was not observed. There was not a significant statistical difference between sinus and conchae constituting the right and left paranasal sinuses of the same sex; however, a significant statistical difference was observed between the sexes (P < 0.05). This study&#8217;s data can be used for purposes of modern anatomy education and research and may form a basis as a model for future studies to be performed on the paranasal sinuses.

Three-dimensional reconstruction of multidetector computed tomography images of paranasal sinuses of New Zealand rabbits

This study was conducted to produce a 3-dimensional reconstruction using multidetector computed tomography (MDCT) images of the anatomic structures forming the paranasal sinuses of New Zealand rabbits and to present biometric properties of the sinuses and conchae. A total of 16 adult New Zealand rabbits, comprising 8 males and 8 females, were included in the study. After high-resolution MDCT images of the paranasal sinuses were obtained, they were reconstructed using a 3-dimensional modeling program (Mimics) by overlapping the images and the biometric measurements of the structures forming the paranasal sinuses. The maxillary sinuses of New Zealand rabbits were made up of 2 compartments. It was also observed that their conchae were more developed with an uneven structure. The frontal sinus and sphenoid sinus were not seen and the ethmoid sinus was not observed. There was not a significant statistical difference between sinus and conchae constituting the right and left paranasal sinuses of the same sex; however, a significant statistical difference was observed between the sexes (P < 0.05). This study&#8217;s data can be used for purposes of modern anatomy education and research and may form a basis as a model for future studies to be performed on the paranasal sinuses.

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  • Tingelhoff K, Moral AI, Kunkel ME, Rilk M, Wagner I, Eichhorn KWG, Walh FM, Bootz F. Comparison between manual and semi-automatic segmentation of nasal cavity and paranasal sinuses from CT images. In: Proceedings of the 29th Annual International Conference of the IEEE EMBS Cité Internationale. Lyon, France; 2007. pp. 5505–5508.
  • Ariji Y, Ariji E, Yoshiura K, Kanda S. Computed tomographic indices for maxillary sinus size in comparison with the sinus volume. Dentomaxillofac Rad 1996; 25: 19–24.
  • Gunkel AR, Freysinger W, Thumfart WF. 3D anatomoradiological basis of endoscopic surgery of the paranasal sinuses. Surg Radiol Anat 1997; 19: 7–10.
  • Sivasli E, Sirikci A, Bayazit YA, Gumusburun E, Erbagci H, Bayram M, Kanlikama M. Anatomic variations of the paranasal sinus area in pediatric patients with chronic sinusitis. Surg Radiol Anat 2002; 24: 400–405.
  • Burschka D, Li M, Ishii M, Taylor RH, Hager GD. Scaleinvariant registration of monocular endoscopic images to CTscans for sinus surgery. Med Image Anal 2005; 9: 413–426.
  • Morrow KL, Park RD, Spurgeon TL, Stashak TS, Arceneaux B. Computed tomographic imaging of the equine head. Vet Radiol Ultrasoun 2000; 41: 491–497.
  • Perez-Pinas I, Sabate J, Carmona A, Catalina-Herrera CJ, Jimenez-Castellanos J. Anatomical variations in the human paranasal sinus region studied by CT. J Anat 2000; 197: 221– 2
  • Branstetter BF, Weissman JL. Role of MR and CT in the paranasal sinuses. Otolaryng Clin N Am 2005; 38: 1279–1299.
  • Fernandez JMS, Escuredo JAA, Rey ASD, Montoya FSM. Morphometric study of the paranasal sinuses in normal and pathological conditions. Acta Otolaryngol 2000; 120: 273–278.
  • Saunders JH, Zonderland JL, Clercx C, Gielen I, Snaps FR, Sullivan M, Vanbree H, Dondelinger RF. Computed tomographic findings in 35 dogs with nasal aspergillosis. Vet Radiol Ultrasoun 2002; 43: 5–9.
  • Reetz JA, Mai W, Muravnick KB, Goldschmidt MH, Schwarz T. Computed tomographic evaluation of anatomic and pathologic variations in the feline nasal septum and paranasal sinuses. Vet Radiol Ultrasoun 2006; 47: 321–327.
  • Uchida Y, Goto M, Katsuki T, Soejima Y. Measurement of maxillary sinus volume using computerized tomographic images. Int J Oral Max Impl 1998; 13: 811–818.
  • Kirmeier R, Arnetzl C, Robl T, Payer M, Lorenzoni M, Jakse N. Reproducibility of volumetric measurements on maxillary sinuses. Int J Oral Max Surg 2011; 40: 195–199.
  • Stelzle F, Benner KU. An animal model for sinus floor elevation with great elevation heights. Macroscopic, microscopic, radiological and micro-CT analysis: ex vivo. Clin Oral Implan Res 2010; 21: 1370–1378.
  • Prokop M. General principles of MDCT. Eur J Radiol 2003; 45: 4–
  • Kalra MK, Maher MM, Toth TL, Hamberg LM, Blake MA, Shepard JA, Saini S. Strategies for CT radiation dose optimization. Radiology 2004; 230: 619–628.
  • International Committee on Veterinary Gross Anatomical Nomenclature. Nomina Anatomica Veterinaria. 5th ed. , Hannover, Columbia, Gent, Sapporo: World Association of Veterinary Anatomists, 2005.
  • Özer A. Deneysel Mide İçeriği Sıvısının Tavşan Burun ve Paranazal Sinüslerine Etkisi. MSc, Süleyman Demirel University, Isparta, Turkey, 2004 (thesis in Turkish).
  • Bahadir O, Bahadir A, Kosucu P, Livaoglu M. The effect of maxillary sinus surgery on its development. Acta Otolaryngol 2008; 128: 551–555.
  • Altman JI, Eloy JA, Hoch BL, Munoz CM, Shohet MR. Demineralized bone matrix and fat autograft in a rabbit model of frontal sinus obliteration. Otolaryng Head Neck 2007; 137: 264–268.
  • Xu M, Yang F, Wang RF. Cone-beam CT analysis of human maxillary sinus: anatomical considerations for sinus augmentation and implant insertion. Shanghai Kou Qiang Yi Xue 2011; 20: 187–190.