Browsing by Author "Demircioglu, Ismail"

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Computed Tomography-Based Morphometric Analysis of the Hip Bones (Ossa Coxae) in Turkish Van Cats
(Kafkas Univ, veteriner Fakultesi dergisi, 2021) Yilmaz, Osman; Demircioglu, Ismail
This study was carried out to determine the osteometric measurement values of the ossa coxae by using three-dimensional (3D) modeling of the images obtained by computed tomography in Van Cats. In the study, 16 adult Van cats, 8 of which are male ones and 8 female ones, were used. Firstly, cats were anesthetized with the ketamine HCl - xylazine HCl combination. Their images were obtained by scanning through 16 cross-sectional CT devices (Somatom Sensation 16; Siemens Medical Solutions, Erlangen, Germany). Then, The scanned images of the ossa coxae in each cat were transformed into the three-dimensional structure by using MIMICS 20.1 (The Materialise Group, Leuven, Belgium) software program. Later, morphometric (12 linear), volumetric, and surface area measurements were calculated and statistical analyses were performed. In the present study, 12 of 14 measurement parameters of the ossa coxae were higher in males than in females. In the osteometric analysis, it was observed that the greatest length of one half (GL), length between the inner edges of the acetabulum (LA), the greatest breadth across the tuber ischiadicum (GBTI), and the smallest breadth across the bodies of the ischia (SBI) measurement values were significantly greater in male cats than in female cats (P<0.05). The volume and surface area values of the ossa coxae in van cats were found as 12.33 +/- 2.14 cm(3) In male cats and 9.81 +/- 0.71 cm(3) in female cats; 94.66 +/- 11.01 cm(2) in male cats and 83.84 +/- 7.73 cm(2) in female cats, respectively. These differences between the measurement values of male and female cats were seen to be statistically significant (P<0.05). As a result, basic morphometric measurement parameters of ossa coxae between both genders in adult Van cats were determined by using CT and 3D modeling programs. It is thought that the data obtained from this study may be useful in determining the sexual dimorphism of these species and also in determining the clinical applications and scientific studies to be carried out in the region.
Examination of the Morphometric Features and Three-Dimensional Modelling of the Skull in Van Cats by Using Computed Tomographic Images
(Ankara Univ Press, 2021) Yilmaz, Osman; Demircioglu, Ismail
This study was conducted to make the three-dimensional modelling of the skull in Van cats by using computed tomographic images and to determine the morphometric features between sexes. The skulls of 16 adult Van cats were used in the study. The skulls of the anesthetized animals were scanned by using a Computed Tomography (CT) device and their images were obtained. These images were converted to a three-dimensional structure using MIMICS 20.1 software and their morphometric measurements were calculated. It was determined in the study that total length of the skull (TLS), facial length (FCL), upper neurocranium length (UNCL), greatest length of the nasal (GLN), maximum zygomatic width (MZW), condylobasal length (CBL), basal length (BL), median palatal length (MPL), palatal length (PL), least palatal breadth (LPB), length of the cheek tooth row (LCR), greatest inner height of the orbit (GIHO), skull height (SH), and volumetric measurement values were statistically significantly higher in the male cats; whereas, breadth dorsal to the external auditory meatus (BEAM) and neurocranium length (NL) measurement values were statistically significantly higher in the female cats (P<0.05). In conclusion, the statistical differences between the sexes in terms of biometric values of skull of Van cats were determined. Present study would be beneficial to veterinary physicians in the surgical and clinical practice fields and to the studies in the field of zooarchaeology as well as being guiding for determining the typology of Van cats among the cat species and its differences from other species.
Morphometry of the Thorax and Three-Dimensional Modelling of the Lower Respiratory Tracts With Computed Tomography in Van Cats
(veterinarni A Farmaceuticka Univerzita Brno, 2024) Kocyigit, Ali; Demircioglu, Ismail; Yilmaz, Osman; Besoluk, Kamil; Dayan, Mustafa Orhun
This study was conducted to produce a three-dimensional model of the thorax and lower respiratory tract in Van cats, to reveal their morphometric properties, and to investigate the anatomical structure of this region in more detail. A total of 16 adult Van cats (8 males and 8 females) were used in the study. The thoracic region of the cats was scanned using multidetector computed tomography device. The images of the scanned region were transferred to the MIMICS 20.1 software that creates three-dimensional reconstruction in order to produce the models. The morphometric measurements were obtained from these models and the index values were calculated. When the data were analysed in terms of sexual dimorphism, significant differences were determined between the sexes in terms of transverse diameter of the thoracic cavity in apertura thoracis cranialis (T2) (P < 0.05), minimum width of apertura thoracis cranialis (T3), and height of the thoracic cavity in thoracis cranialis (H1) (P < 0.01). The index values of the data revealed a significant difference between the sexes only in terms of the thoracic index 2 (P < 0.05). The 7th sternebra was shorter and more flattened than the other sternebrae in Van cats. In conclusion, three-dimensional models of the thorax and lower respiratory tracts of Van cats were produced in the study. It is thought that the data of the study may be useful in clinical practice and academic studies in the field of veterinary medicine.
Three-Dimensional Modelling and Morphological Investigation of the Bones of the Articulatio Genus Using Computed Tomography Images in Van Cats
(Wiley, 2024) Dursun, Suleyman; Yilmaz, Osman; Demircioglu, Ismail
In this study, it was aimed to make three-dimensional reconstruction of the stifle joint computed tomography (CT) images of the Van cats, to obtain their osteometric measurements, and to determine the statistical biometric differences of these measurement values in terms of both sexual dimorphism and homotypic variations. A total of 16 healthy adult Van cats of both sexes were used. The stifle joints of the cats were scanned with a CT device and images were obtained. Three-dimensional reconstructions of the bony structures of the stifle joint were performed using CT images using the MIMICS 20.1 modelling program. Then, osteometric measurements were calculated, and statistical analysis was performed. When the morphometric measurement values were examined in terms of gender, it was observed that almost all of the osteometric measurement values of the stifle joint in Van cats (except SPW measurement) were higher in male cats. According to homotypic variations, right side TPW (p = 0.009), TPCMA (p = 0.003) and TPMCA (p = 0.032) measurement values in female cats and right side TPLCA (p = 0.002) measurement values in male cats were found to be statistically significantly higher than the left side from the measurements of only the proximal tibia (p < 0.05). In general, although there were negative correlations between morphometric measurement values with age and body weight, mostly strong positive correlations were seen. As a result, statistical differences of the biometric values and anatomical features of the stifle joint between the sexes in Van cats between the sexes were examined using CT and a three-dimensional modelling program.