Abstract：
2D images view hardly measurement points due to the overlap of anatomical features. This challenge is overcome by 3D modelling. In particular, images obtained by computed tomography are converted into 3D models through certain software. In sheep breeds with high polymorphism, some changes have occurred in their morphology due to both environmental and genetic factors. In this context, determining the osteometric measurements of sheep and revealing breed-specific characteristics provide very important data for forensic, zooarchaeological, and developmental sciences. Mandibular reconstruction measurements are used to reveal differences between species and between sexes and for treatment and surgery in many fields of medicine. In the present study, morphometric characteristics were determined by 3D modelling from computed tomography images obtained from mandibles of Romanov ram and ewe. For this purpose, mandibles of 16 Romanov sheep (eight females and eight males) were used. They were scanned using a 64-detector MDCT device at 80 kV, 200 MA, 639 mGY, and 0.625 mm slice thickness. CT scans were recorded in DICOM format. Reconstructions of the images were made using a special software program. Volume and surface area measurements were made with 22 osteometric parameters of the mandible. GOC-ID had a statistically significant positive correlation with GOC-ID, PC-ID, GOC-MTR, GOC-PTW, GOC-FMN, PMU, MDU, PDU, DU, GOV-PC, GOV-IMD, MTR-MH, MO-MH, FMN- ID, BM, MG, and CG (p < 0.01). GOC-ID had a statistically significant correlation with MTR-ID, GOV-CR, PTW-MH and SI (p < 0.05). When the CR-PC measurement point was examined, it was observed that it had no statistically significant correlation with all measurement points (p > 0.05). As a result of the measurement, it was found that the volume and surface areas were higher in rams than in ewes. The morphometric data obtained would be a reference income in the fields of zoo-archaeology, anatomy, forensics, anaesthesia, surgery, and treatment.
摘要：
由于解剖特征的重叠,2D图像几乎看不到测量点。3D建模克服了这一挑战。特别是,通过计算机断层扫描获得的图像通过某些软件转换为3D模型。在具有高多态性的绵羊品种中，由于环境和遗传因素，它们的形态发生了一些变化。在这种情况下，确定绵羊的骨测量和揭示特定品种的特征为法医提供了非常重要的数据，动物考古学,和发展科学。下颌重建测量用于揭示物种之间和性别之间的差异，并用于许多医学领域的治疗和手术。在本研究中,通过从Romanovram和母羊的下颌骨获得的计算机断层扫描图像进行3D建模来确定形态特征。为此,使用了16只罗曼诺夫绵羊（八只雌性和八只雄性）的下颌骨。使用80kV的64探测器MDCT设备对它们进行了扫描，200MA,639mGY,和0.625毫米的切片厚度。以DICOM格式记录CT扫描。使用特殊软件程序进行图像的重建。使用下颌骨的22个骨骼参数进行体积和表面积测量。GOC-ID与GOC-ID呈显著正相关,PC-ID,GOC-MTR,GOC-PTW,GOC-FMN,PMU,MDU,PDU,DU,GOV-PC,GOV-IMD,MTR-MH,MO-MH,FMN-ID,BM,MG,和CG（p<0.01）。GOC-ID与MTR-ID有统计学意义的相关性，GOV-CR,PTW-MH和SI(p<0.05)。当检查CR-PC测量点时，观察到它与所有测量点没有统计学上的显著相关性(p>0.05)。作为测量的结果，发现公羊的体积和表面积高于母羊。获得的形态数据将是动物园考古学领域的参考收入，解剖学,取证,麻醉,手术,和治疗。
