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Öğe Determination of sex-related diff erences based on 3D reconstruction of the chinchilla (Chinchilla lanigera) vertebral column from MDCT scans(CZECH ACADEMY AGRICULTURAL SCIENCES, 2017) Ozkadif, S.; Eken, E.; Dayan, M. O.; Besoluk, K.This study was undertaken to obtain and analyse, on the basis of sex, three-dimensional (3D) reconstructions obtained by a 3D computer program from two-dimensional (2D) vertebral column sections taken by multidetector computed tomography (MDCT) images, in the chinchilla. A total of 16 adult chinchillas (Chinchilla lanigera) of both sexes were used. The MDCT images were taken under general anaesthesia, and were then transferred to a personal computer on which 3D reconstructions were carried out using a 3D modelling program (Mimics 13.1). The volume, surface area and vertebral body length of each vertebra (except caudal region) forming the vertebral column were measured from the 3D models created. The ratios (in percentage) of the measurements of each vertebra (except the sacral ones) forming the vertebral column region (cervical part, thoracic part, lumbar part) were determined for statistical analysis. We detected significant differences (P < 0.05) between sexes in all vertebrae forming the vertebral column of the chinchilla with respect to volume, surface area and vertebral body length, except for C6 and L1. This study is the first to carry out 3D reconstructions of data obtained from CT images in the chinchilla and the obtained results contribute to a more detailed understanding of the anatomy of this species. Our strategy may also be useful for the design of experiments exploring the vertebral column in domestic mammals and humans.Öğe Morphometric and macroanatomic examination of auditory ossicles in male wolves (Canis lupus)(VIA MEDICA, 2019) Gurbuz, I; Demiraslan, Y.; Dayan, M. O.; Aslan, K.Background: The aim of the study was to determine morphometric and macro-anatomic features of auditory ossicles and the tympanic bulla in wolf. Materials and methods: For this purpose, 7 skulls of adult male wolf were used in the study. Auditory ossicles was photographed on a dissection microscope after it was removed from the skull. A total of 14 morphometric measurements were taken among the different points of malleus, incus and stapes in Image J programme. Mean values of the measurements were obtained and statistically compared in terms of sides (right-left). Results: In male wolves, the lengths of the right and left malleus were determined as mean 9.35 +/- 0.14 and 9.57 +/- 0.25 mm, the lengths of the incus as mean 3.01 +/- 0.32 and 2.94 +/- 0.16 mm, and the lengths of the stapes as mean 2.57 +/- 0.12 and 2.59 +/- 0.14 mm, respectively. The differences were not statistically significant when all the morphometric parameters were compared in terms of sides (p > 0.05). Conclusions: It is considered that this study will contribute to the anatomical studies to be conducted in the Canidae family regarding auditory ossicles.Öğe Three-dimensional modelling of the femur and humerus in adult male guinea pigs (guinea pig) with computed tomography and some biometric measurement values(VIA MEDICA, 2019) Dayan, M. O.; Beşoluk, K.; Eken, E.; Aydoğdu, S.; Turgut, N.Background: Guinea pig is a species belonging to the Caviidae family of the Rodentia order and is frequently used in experimental studies. Biomedical imaging methods are used in the diagnosis and treatment of many diseases in medicine. Among these methods, computed tomography (CT) is one of the most important imaging methods. In this study, it was aimed to perform the three-dimensional (3D) modelling of the CT images, obtained from the humerus and femur in the guinea pigs, via the MIMICS programme, and to make some biometric measurements regarding the bones over these models. Materials and methods: In the present study, 12 male adult guinea pigs were used. The soft tissue on the humerus and femur bones of the guinea pigs was removed. After this procedure, CT images at a 0.5 mm-thickness were obtained from the animals. The images were recorded in DICOM format. Then, the reconstruction process was performed from the images by using the 3D modelling programme MIMICS (R) 13.1. On the 3D model of the humerus and femur (right-left), volumes, surface areas and lengths as well as other biometric parameters were measured separately, and the values were recorded. In addition, measurements of the bones were made with the help of a digital calliper. Results: Among the parameters obtained from 3D models, a statistical difference was observed between the right and left cortical thicknesses of the femur from the measurements of calliper and the right and left humerus volumes (p < 0.05); whereas, no statistical difference was found in other parameters of both measurements (p > 0.05). Conclusions: It can be stated that CT and 3D modelling can be used for the measurement of some parameters in the long bones of the guinea pigs.Öğe Three-dimensional reconstruction of New Zealand rabbit antebrachium by multidetector computed tomography(SHIRAZ UNIV, 2015) Ozkadif, S.; Eken, E.; Besoluk, K.; Dayan, M. O.The aim of this study was to reveal biometric peculiarities of New Zealand white rabbit antebrachium (radius and ulna) by means of three-dimensional (3D) reconstruction of multidetector computed tomography (MDCT) images. Under general anesthesia, the antebrachiums of a total of sixteen rabbits of both sexes were scanned with a general diagnostic MDCT. Biometric measurements of the reconstructed models from high resolution MDCT images were analyzed statistically. Consequently, when biometric measurement values of corresponding bones of antebrachium were compared, it was revealed that there was no statistical significance within both sexes but there were statistically important differences between both sexes in some biometric measurements. It has been suggested that the results from the study can shed light on future studies on the skeletal system and can form a modern point of view to anatomical education.Öğe Three-Dimensional Reconstruction of Stomach and Intestines in New Zealand White Rabbits from Computerized Tomography Images(ISRAEL VETERINARY MEDICAL ASSOC, 2011) Dayan, M. O.; Besoluk, K.The aim of this study was to produce three-dimensional reconstructions of organs of the gastro-intestinal system obtained from computerized tomography images. A total of 16 New Zealand White rabbits were used. Computed tomographic imaging was performed in the prone position in fasted rabbits under general anesthesia using contrast medium administered both orally and rectally. Axial images obtained from computed tomography were stored in DICOM format and transferred to CD. Three-dimensional reconstructions were produced using MIMICS (R) 12.1 computer software. The lengths of stomach, duodenum, jejunum, ileum, cecum, appendix and colon were measured in centimeters after euthanized. The volume and surface area of the organs of the gastro-intestinal system were calculated automatically by the computer software. The jejunum was the longest portion (p<0.05) of the gastrointestinal system. The small and large intestines had the largest surface area (p<0.05) compared to stomach and cecum, while the cecum had the largest volume (p<0.05) compared to stomach, small and large intestines. The surface areas of the stomach, cecum and intestines to the total gastro-intestinal system area were 11%, 39% and 48%, respectively. The volumes of the stomach, cecum, and intestines to the total gastro-intestinal system volume were 17%, 59% and 23%, respectively. In the ventral view of the abdominal cavity the stomach was observed in the cranial abdominal cavity; ileum and colon were determined in the median line of abdominal cavity and cecum filled the rest of the abdominal cavity. In conclusion, the results obtained using this technology as applied in this study may be a key to future investigations and to a new approach to anatomical science.
