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Öğe 1st international medical records congress December 3-5, 2021, Online(Tıbbi Kayıtlar Derneği, 2022) Öner, Zülal1ST INTERNATIONAL MEDICAL RECORDS CONGRESS DECEMBER 3-5, 2021, ONLINE ORAL PRESENTATION ABSTRACTS BOOKÖğe Adli Yaş Tahminine Yönelik Web of Science Veritabanında Yer Alan Araştırma Çalışmaların Bibliometrik Analizi(2023) Ayvat Öcal, Zeynep; Bakıcı, Rukiye Sümeyye; Meral, Orhan; Öner, Zülal; Öner, SerkanAmaç: Günümüzde yaş tahmini, biyolojik profil oluşturulmasında yararlanılan, adli bilimlerde kim-liklendirme amacıyla sıklıkla kullanılan ve önemli veriler sunan bir yöntemdir. Bu çalışmanın amacı, ISI Web of Knowledge-Science veritabanında yer alan yaş tahmini konusundaki eserlerin biblio-metrik analizini yaparak, disiplinler arası etkileşim ve araştırma trendlerini belirlemeye yönelik öneriler sunmaktır. Materyal ve metod: WoS veritabanında yer alan eserler arasından başlığında \"age\" sözcüğü ve bunun yanı sıra “estimation”, “determination”, “prediction” veya “assessment” sözcüklerinden herhangi birini içeren makaleler tespit edilmiştir. Veritabanının filtreleme özelliğinden yararlanılarak bu makalelerin yazım dili, yayın yılı, yayınlandığı dergi, makalenin yazarları, yazar kurumları, çalışmala-rın yapıldığı ülke ve makalelere yapılan atıf sayısı ile çalışmaların finansal destek alıp almadığı araştı-rıldı. Bulgular: -Çalışmamız kapsamını oluşturan 1020 makalenin, (n=990,%97.1) kadarının İngilizce olarak yayınlandığı, eserlerin yayınlandığı günden bugüne toplam 23704 atıf aldığı, incelenen makalelerin (n=993,%97.4) kadarının SCI-E kapsamında indekslenen dergilerde yer aldığı ve en çok çalışmanın (n=145, %10.4) makale ile Almanya’da yapıldığı bilgisine ulaşıldı. Sonuç: Çalışma verileri, WoS veritabanında yer alan makalelerin analiz edilmesi sonucu elde edilen veriler ışığında ülkeler, kurumlar ve araştırmacıların adli yaş tahmini konusundaki bibliometrik analizini ortaya koymaktadır. Sunulan çalışma, bu alanda yapılan ilk çalışma niteliğindedir. Elde edilen bilgiler araştırmacılar, akademisyenler ve diğer paydaşlar için değerli bir kaynak olabilir ve gelecekteki yaş tahmini araştırmalarının yönlendirilmesine katkı sağlayabilir.Öğe Analysis of the correlation between thyroid hormones and thyroid volume by gender: A volumetric computed tomography study(2022) Öner, Zülal; Öner, Serkan; Secgin, Yusuf; Toy, ŞeymaThe aim of this study was to evaluate the correlation between triiodothyronine (T3), thyroxine (T4), and thyroid-stimulating hormone (TSH) hormones and thyroid gland volume with volumetric analysis performed by using computed tomography (CT) images. In this retrospective study, IV contrasted thoracic CT images taken for different indications between 2019 January and 2020 January were scanned from the archive system of the hospital. 67 (31F, 36M) individuals chosen randomly among patients whose CT results were reported as normal and who had taken thyroid hormone tests within the past week were included in the study. Images in Digital Imaging and Communications in Medicine format were transferred to the personal work station program (Horos Medical Image Viewer). By using the Region of Interest (ROI) console in the current program, a three dimensional model was obtained by drawing the border of the thyroid gland in sections varying between 15 and 25. Volume values of this three-dimensional model and TSH, T3, T4 values of the individuals were compared. While no correlation was found between thyroid gland volume and T3 and T4 hormones, a negative significant correlation was found with TSH. In terms of gender, thyroid gland volume, T3, T4 values were found to be statistically significantly higher in women when compared with men (p?0.05). TSH value was found to be higher in women when compared with men (p=0.005). No statistically significant difference was found in T4 value (p=0.057). Radio-anatomical volumetric data of the thyroid gland presented in this study and its correlation with thyroid functions will be beneficial to clinicians working in the field in both internal and surgical medicine branches and will also guide future studies.Öğe Associating craniofacial morphometry determined by photo analysis with somatotype in healthy young individuals(2023) Toy, Şeyma; Şenol, Deniz; Öner, ZülalObjectives: Evaluation of the relationship between craniofacial parameters and somatotype provides important contributions to specialist physicians and anatomists in determining diseases and obtaining objective results of anthropometric measurements. The study was designed in line with this hypothesis and the aim was to find out how this relationship changed in healthy individuals. Methods: The study was conducted by examining 191 healthy individuals between the ages of 18 and 30. The individuals’ faces were photographed from a distance of 1 meter and craniofacial parameters were measured in Image J program. Somatotype analysis was conducted by using Heath-Carter somatotype method. Results: As a result of our study, the individuals were found to be grouped in four classes according to Heath-Carter somatotype method: (1) mesomorph endomorph, (2) endomorph ectomorph, (3) endomorph mesomorph and (4) central. Significant correlation was found between the second and first somatotype groups in terms of total nasal length, while significant correlation was found between second and first/second and third/fourth and third/first and third somatotype groups in terms of body mass index (BMI) parameter (p < 0.05). Craniofacial parameters were also evaluated and a very high correlation was found between total facial height and mandibular height, while there was a high correlation between total facial height and the other 16 parameters. Conclusions: As a result of our study, a relationship was found between somatotype groups and craniofacial parameters, within craniofacial parameters, and between somatotype and BMI. We believe that this relationship will guide morphological studies in basic medical sciences and surgical interventions in clinical sciences.Öğe Atmosferik basınç soğuk plazmanın bakteri izolatları üzerine etkilerinin araştırılması(Malatya Turgut Özal Üniversitesi, 2023) Bozduman, Ferhat; Seçgin, Yusuf; Yılmaz, Şerife; Öner, Zülal; Solmaz, HasanAmaç: Atmosferik basınç soğuk plazma sağlık, gıda ve tarım sektöründe antimikrobiyal etkinliği için kullanılan termal olmayan plazma türüdür. Bu çalışma farklı bakteri izolatları üzerine atmosferik basınç soğuk plazmanın etkinliğinin araştırılması amacıyla gerçekleştirildi. Materyal ve Metot: Çalışma standart referans bakteri suşu olan; Escherichia coli (O157:H7), Bacillus subtilis (ATCC 6633), Enterobacter aerogenes (ATCC 13048), Rhodococcus equi (ATCC 6939), Salmonella typhimurium (ATCC 14028), Enterococcus feacalis (ATCC 2912) ve saha izolatı olan 12 adet Escherichia coli izolatı, 22 adet Staphylococcus spp., 18 adet Klebsiella spp., 2 adet Enterococcus spp., 3 adet Acinetobacter spp., 8 adet Candida spp., 1 adet Morgarella mongarii, 2 adet Corynebacterium spp., 1 adet Streptococcus pyogenes üzerine gerçekleştirildi. İzolatlara atmosferik basınç soğuk plazma jeti ve plazma ile aktive edilmiş ortam (PAM) uygulandı ve etkinliği araştırıldı. Bulgular: Çalışma sonucunda standart bakteri suşlarında Escherichia coli (O157:H7), Enterobacter aerogenes (ATCC 13048), Salmonella typhimurium, Rhodococcus equi (ATCC 6939) ve Enterococcus feacalis (ATCC 2912)’e soğuk plazmanın etki ettiği, saha izolatlarından ise Streptococcus pyogenes (A grubuBet) ile Staphylococcus epidermidis’e etki gösterdiği bulundu. Sonuç: Çalışmamız sonucunda atmosferik basınç soğuk plazmanın ve PAM’ın antimikrobiyal etkinliği ortaya konuldu ve bu yönüyle sağlık, gıda ve tarım sektörlerine katkı sağlayacağını düşünmekteyiz.Öğe Correlation of Morphometric Parameters Taken from the Head of the Mandible with Other Parameters of the Mandible(2022) Toy, Şeyma; Seçgın, Yusuf; Şenol, Deniz; Öner, Zülal; Ray, Abdullah; Malkoç, İsmailBackground: The mandible is a very important bone for forensic medicine, anthropology, anatomy and odontology sciences. This bone has many functions such as speaking, chewing and swallowing. This study was carried out to examine the relationship between morphometric parameters ob-tained from the head of the mandible and other parameters of the mandible.Materials and Methods: In our study, 45 dry mandible bones were used. These bones were photo-graphed and measured in the Image J program. These measurements were the distance of the head of the mandible to mental foramen (right, left), the distance of the head of the mandible to angle of the mandible (right, left), the distance of the head of the mandible to gnathion (right, left), the distance of the head of the mandible to coronoid process (right, left), the distance of the head of the mandible to the mandibular notch (right, left), the distance of the head of the mandible to alveolar juga (right, left) and the distance between right and left head of the mandible.Results: While no difference was found in terms of direction in dry mandibles with correlation anal-ysis (p>0.05), a high significant correlation was found in 18 parameters (p≤0.05).Conclusions: In our study, correlations were found between parameters obtained from the head of the mandible and other parameters of the mandible.Öğe Determination of Sex Differences Using Machine Learning Algorithms and Artificial Neural Networks with Parameters Obtained from Basilar Artery(Universidad de la Frontera, 2024) Secgin, Yusuf; Erkartal, Halil Saban; Tatlı, Melike; Toy, Seyma; Öner, Zülal; Öner, SerkanThe determination of sex differences in anatomical structures is critical in establishing gold standard morphometric data in basic medical sciences, and in surgical and internal sciences in selecting the right area during invasive intervention and applying the correct intervention methodology appropriate to the area. The aim of this study is to determine the sex difference using Machine learning (ML) algorithms and Artificial neural networks (ANN) with parameters obtained from basilar artery. The study was performed on computed tomography angiography images of 63 women and 94 men. The following parameters were measured on the images: initial width of the right vertebral artery, initial width of the left vertebral artery, termination width of the right vertebral artery, termination width of the left vertebral artery, basilar artery width, and basilar artery length. The measurements were used in ML algorithms and ANN input to determine sex differences. As a result of the study, a sex difference rate of 0.84 was determined with the ML algorithms Random Forest (RF), Quadratic Discriminant Analysis (QDA), Extra Tree Classifier (ETC) and 0.84 with the Multilayer Perceptron Classifier (MLCP) algorithm of ANN. As a result of the study, sex difference was found with an accuracy rate of 0.84 using ML algorithms and ANN with parameters obtained from basilar artery. In this context, we think that this study will shed light on basic and clinical medical sciences. © 2024, Universidad de la Frontera. All rights reserved.Öğe Evaluation of congenital rib anomalies with multi-detector computed tomography in the Turkish population(Via Medica, 2024) Öner, Zülal; Öner, Serkan; Sahin, Necati Emre; Cay, MahmutBackground: This study aimed to evaluate the congenital anomalies of ribs in the Turkish population using multi-detector computed tomography (CT) and to reveal the prevalence and distribution of these anomalies according to sexes and body sides. Materials and methods: This study included 1120 individuals (592 male, 528 female) over 18 who presented to our hospital with a suspicion of COVID-19 and who had thoracic CT. Anomalies such as a bifid rib, cervical rib, fused rib, Srb anomaly, foramen rib, hypoplastic rib, absent rib, supernumerary rib, pectus carinatum, and pectus excavatum, which were previously defined in the literature, were examined. Descriptive statistics were performed with the distribution of anomalies. Comparisons were made between the sexes and body sides. Results: A prevalence of 18.57% rib variation was observed. Females had 1.3 times more variation than males. Although there was a significant difference in the distribution of anomalies by sex (p = 0.000), there was no difference in terms of body side of anomaly (p > 0.05). The most common anomaly was the hypoplastic rib, followed by the absence of a rib. While the incidence of the hypoplastic rib was similar in females and males, 79.07% of the absent ribs was seen in females (p < 0.05). The study also includes a rare case of bilateral first rib foramen. At the same time, this study includes a rare case of rib spurs extending from the left 11(th) rib to the 11(th) intercostal space. Conclusions: This study demonstrates detailed information about congenital rib anomalies in the Turkish population, which may vary between people. Knowing these anomalies is essential for anatomy, radiology, anthropology, and forensic sciences.Öğe Evaluation of hand morphometry in healthy young individuals from different countries(Soc Chilena Anatomia, 2024) Sahin, Necati Emre; Bakici, Rukiye Sumeyye; Toy, Seyma; Öner, ZülalThis study aims to examine the hand morphometry of healthy young individuals from different countries and investigate the differences between countries in typing of hand based on the morphometric values obtained. In the study, 16 different parameters, including two surface areas and 14 lengths, were measured from the right hand of 579 volunteers (250 females, 329 males) from 7 different countries (Turkey, Chad, Morocco, Gabon, Kazakhstan, Senegal and Syria). Factor analysis was performed on the parameters, cluster analysis was performed according to the factor score obtained, and the hand types in the study were determined. As a result of the study, four different hand types were defined, and the distribution of these types according to countries was analyzed. All parameters showed significant differences between countries in both genders (p<0.05). According to the results of the study, there was a difference between male and female hand types between countries. In females, the type 1 hand type was found only in Gabon, the type 2 hand type was found only in Senegal, the type 3 hand type was found in Turkey, Morocco and Kazakhstan, while the type 4 hand type was significantly distributed in Senegal and Gabon (X-2 =104.62; df=18, p<0.05). In males, type 1 hand type was found in Turkey, type 2 hand type in Senegal and Gabon, type 3 hand type in Turkey, while type 4 hand type was significantly distributed in Morocco and Kazakhstan (X-2 =76.964; df=18, p<0.05).Öğe Evaluation of oxidative system parameters in alzheimer's disease before medical treatment(Taiwan Soc Geriatric Emergency & Critical Care Medicine-Tsgecm, 2022) Ayada, Ceylan; Erbay, Umran Toru; Korkut, Yasemin; Guleken, Zozan; Öner, ZülalBackground: Alzheimer's disease (AD) is the most common reason for dementia and is one of the most important causes of morbidity and mortality in the aging population. A crucial component of AD is the brain's sensitivity to oxidative stress. We aimed to determine the oxidative load of patients with AD who had just been diagnosed and had not yet begun medical treatment.Methods: To assess oxidative load before drug administration, we compared the levels of serum total antioxidant (TAS), oxidant status (TOS), paraoxonase (PON1), arylesterase (ARES), total thiol (THIOL) levels in patients just diagnosed with AD (n = 41) and control (n = 45) with the totally 86 individuals. AD and control groups oxidative stress index (OSI) ratio was calculated too.Results: There was a statistically significant difference between the AD and control groups for mean TAS, TOS, and OSI levels with a 95% confidence level (pTAS = 0.001, pTOS = 0.005, pOSI = 0.001). There was not a statistically significant difference between the groups in terms of mean PON1, ARES, and THIOL values. Significantly negative and positive correlations were found for the interested parameters in both groups.Conclusion: The increase in antioxidative capacity in patients with AD may be related to ARES supported by TAS, and THIOL levels suggest, that those protein oxidation mechanisms are effective in the progress of AD disease before medication.Copyright (c) 2022, Taiwan Society of Geriatric Emergency & Critical Care Medicine.Öğe Evaluation of palmar creases of healthy young individuals of different countries(Cukurova Univ, Fac Medicine, 2024) Sahin, Necati Emre; Bakici, Rukiye Sumeyye; Öner, Zülal; Toy, SeymaPurpose: This study aims to evaluate the potential effects of gender and country factors on palmar creases by examining the palmar creases of young adults from various countries. Materials and Methods: The study involved a total of 220 volunteers, including 120 males and 100 females aged 18-30, from seven different countries (Jordan, Sudan, Somalia, Iran, Iraq, Tanzania and Turkey), as well as students from Karabuk University. Hand types were evaluated based on palmar creases and the number of origins for both hands. Total Degree of Transversality (TDoT) values for palmar creases were calculated. Classification of palmar creases and comparison of T -DoT values for both hands were performed between genders and countries. Results: The study analyzed 440 hands from 220 individuals, identifying 1 Simian, 8 Suwon, and 5 Sydneytype hands, while categorizing the remaining 426 hands as normal type. Regarding the number of palmar crease origins, it was observed that there was a single origin in 3 hands, two origins in 309 hands and three origins in 119 hands. Significant associations were found between genders and countries in the number of palmar crease origins. In addition, significant differences in right hand TDoT values were found between genders and countries. Conclusion: In spite of limitations in sample selection and size, these results are important in providing a basis for future in-depth research on palmar creases at later stages, although generalizability to the specific countries represented in the sample may be limited. Consequently, this study highlights variations among countries concerning both the number of palm crease origins and right-hand T -DoT values.Öğe Exploring the lacrimal sac fossa: anatomical insights for optimizing external dacryocystorhinostomy(Springer France, 2025) Duygu, Özden Bedre; Govsa, Figen; Pinar, Yelda; Öner, ZülalBackgroundExternal dacryocystorhinostomy is considered the gold standard for treating epiphora resulting from nasolacrimal duct obstruction. Despite the success of the procedure, a visible facial skin scar often undermines the surgical outcome. The aim of this study is to prevent visible facial scarring following oculoplastic interventions by improving the insight into the anatomical details of the lacrimal sac fossa (LSF), lacrimo-maxillary suture (LMS), periosteum, and lacrimal diaphragm.MethodsThe study examined the medial canthal region of eighty adult male sspecimens to investigate the landmarks associated with the LSF. The periorbital area was dissected to reveal the skin, subcutaneous tissues, orbicularis oculi muscles, and the lacrimal drainage system, all of which were detached from their bony attachments. The lengths of the lacrimal crests, midline length, midline width, dorsolateral angle, composition of the LMS, and area of the LSF were evaluated using the ImageJ program. The LSF was categorized into six distinct shapes: ellipsoid, oval, inverted pear, straight pear, oblique hammer, and quadrangular.ResultsThe measurements of the anterior lacrimal crest averaged 2.2 +/- 0.4 cm, the posterior edge 2.0 +/- 0.4 cm, and the midline 1.9 +/- 0.3 cm. The area of the LSF was found to be 1.4 +/- 0.5 cm(2). The analysis reveals that about half of the LSF consists of equal parts maxillary and lacrimal bones. The dorsolateral angle values where the maxilla and os lacrimale equally contributed to the structure of the LSF were higher than those completely formed by the maxilla. The shapes of the LSF were classified as ellipsoid (35%), oblique hammer (21.3%), oval (13.7%), inverted pear (15%), with the ellipsoid type being the most frequent. The anterior lacrimal crest length of the oval-shaped LSF was shorter than that of the oblique hammer-shaped LSF. Similarly, the posterior lacrimal crest of the oval-shaped LSF was shorter than that of the oblique hammer-shaped LSF. The midline length of ellipsoid, oval, and inverted pear-shaped LSFs was shorter than that of oblique hammer-shaped LSFs.ConclusionThe length of anterior lacrimal crest and LMS are suggested as the most reliable navigational references for locating the type of LSF. Mastery of the transversal and vertical orientation of the LSF is essential for surgeons performing oculoplastic surgeries tailored to individual anatomical variations. This study is clinically valuable as it underscores the necessity for oculoplastic surgeons to adapt surgical techniques in response to anatomical differences encountered during surgery.Öğe Gender estimation from morphometric measurements of mandibular lingula by using machine learning algorithms and artificial neural networks(Wolters Kluwer Medknow Publications, 2024) Senol, D.; Bodur, F.; Secgin, Y.; Sencan, D.; Duman, Sb; Öner, ZülalBackground:Sex determination from the bones is of great importance for forensic medicine and anthropology. The mandible is highly valued because it is the strongest, largest and most dimorphic bone in the skull.Aim:Our aim in this study is gender estimation with morphometric measurements taken from mandibular lingula, an important structure on the mandible, by using machine learning algorithms and artificial neural networks.Methods:Cone beam computed tomography images of the mandibular lingula were obtained by retrospective scanning from the Picture Archiving Communication Systems of the Department of Oral, Dental and Maxillofacial Radiology, Faculty of Dentistry, & Idot;n & ouml;n & uuml; University. Images scanned in Digital Imaging and Communications in Medicine (DICOM) format were transferred to RadiAnt DICOM Viewer (Version: 2020.2). The images were converted to 3-D format by using the 3D Volume Rendering console of the program. Eight anthropometric parameters were measured bilaterally from these 3-D images based on the mandibular lingula.Results:The results of the machine learning algorithms analyzed showed that the highest accuracy was 0.88 with Random Forest and Gaussian Naive Bayes algorithm. Accuracy rates of other parameters ranged between 0.78 and 0.88.Conclusions:As a result of the study, it is thought that mandibular lingula-centered morphometric measurements can be used for gender determination as well as bones such as the pelvis and skull as they were found to be highly accurate. This study also provides information on the anatomical position of the lingula according to gender in Turkish society. The results can be important for oral-dental surgeons, anthropologists, and forensic experts.Öğe Gender prediction using cone-beam computed tomography measurements from foramen incisivum: Application of machine learning algorithms and artificial neural networks(Wolters Kluwer Medknow Publications, 2024) Senol, Deniz; Secgin, Yusuf; Harmandaoglu, Oguzhan; Kaya, Seren; Duman, Suayip Burak; Öner, ZülalIntroduction: This study aims to predict gender using parameters obtained from images of the foramen (for.) incisivum through cone-beam computed tomography (CBCT) and employing machine learning (ML) algorithms and artificial neural networks (ANN).Materials and Methods: This study was conducted on 162 individuals in total. Precise measurements were meticulously extracted, extending from the foramen incisivum to the arcus alveolaris maxillaris, through employment of CBCT. The ML and ANN models were meticulously devised, allocating 20% for rigorous testing and 80% for comprehensive training.Results: All parameters that are evaluated, except for the angle between foramen palatinum majus and foramen incisivum-spina nasalis posterior (GPFIFPNS-A), exhibited a significant gender difference. ANN and among the ML algorithms, logistic regression (LR), linear discriminant analysis (LDA), and random rorest (RF) demonstrated the highest accuracy (Acc) rate of 0.82. The Acc rates for other algorithms ranged from 0.76 to 0.79. In the models with the highest Acc rates, 14 out of 17 male individuals and 13 out of 16 female individuals in the test set were correctly predicted.Conclusion: LR, LDA, RF, and ANN yielded high gender prediction rates for the measured parameters, while decision tree, extra tree classifier, Gaussian Naive Bayes, quadratic discriminant analysis, and K-nearest neighbors algorithm methods provided lower predictions. We believe that the evaluation of measurements extending from foramen incisivum to arcus alveolaris maxillaris through CBCT scanning proves to be a valuable method in gender prediction.Öğe Gender prediction using geometric morphometry with parameters of the cranium obtained from computed tomography images(Cukurova Univ, Fac Medicine, 2024) Secgin, Yusuf; Öner, Zülal; Öner, Serkan; Toy, SeymaPurpose:The gender difference of the cranium skeleton is of great importance in forensic anthropology and forensic medicine sciences. This study is based on this hypothesis and the gender prediction rate was obtained by processing cranium images obtained from computed tomography (CT) using geometric morphometry.Materials and Methods:CT images of 200 individuals between the ages of 25 and 65 were used in our study. The images were opened at the personal workstation Horos Medical Image Viewer (Version 3.0, USA) program and processed with 3D Curved Multiplanar Reconstruction (MPR). The line passing through the nasion and inion points of the images obtained as a result of the process was determined, and all images were brought to the orthogonal plane. Later, the images were overlapped and saved in JPEG format with 100% magnification. JPEG images saved were converted into TPS format, and 21 homologous landmarks were placed. Generalized Procrustes Analysis (GPA) and Principal Component Analysis (PCA) were applied to thecoordinates of landmarks, and shape variations and dimensionality were corrected by gathering the images to the center of gravity. Next, Linear Discriminant Analysis (LDA) was applied to the coordinates, the dimensionality of which was corrected. Results:The study found that 74.465% of the coordinates of 21 homologous landmarks gathered to the center of gravity could be explained with the first three PCs. As a result of the LDA applied to these coordinates, a gender prediction rate of 86.5% was obtained.In addition, a slight difference was found between the GPA sum of squares and the tangent sum of squares (0.57). Conclusion:The images of the cranium obtained from CT showed a high dimorphism by geometric morphometry analysisÖğe Kunuralp national multidisiplinary studies congress in medicine and health sciences December 22-24th 2023, Online(Tıbbi Kayıtlar Derneği, 2024) Öner, ZülalKONURALP NATIONAL MULTIDISIPLINARY STUDIES CONGRESS IN MEDICINE AND HEALTH SCIENCES DECEMBER 22-24th 2023, ONLINE ORAL PRESENTATION ABSTRACTS BOOKÖğe Sex prediction of hyoid bone from computed tomography images using the DenseNet121 deep learning model(Soc Chilena Anatomia, 2024) Bakici, Rukiye Sumeyye; Cakmak, Muhammet; Öner, Zülal; Öner, SerkanThe study aims to demonstrate the success of deep learning methods in sex prediction using hyoid bone. The images of people aged 15-94 years who underwent neck Computed Tomography (CT) were retrospectively scanned in the study. The neck CT images of the individuals were cleaned using the RadiAnt DICOM Viewer (version 2023.1) program, leaving only the hyoid bone. A total of 7 images in the anterior, posterior, superior, inferior, right, left, and right-anterior-upward directions were obtained from a patient's cut hyoid bone image. 2170 images were obtained from 310 hyoid bones of males, and 1820 images from 260 hyoid bones of females. 3990 images were completed to 5000 images by data enrichment. The dataset was divided into 80 % for training, 10 % for testing, and another 10 % for validation. It was compared with deep learning models DenseNet121, ResNet152, and VGG19. An accuracy rate of 87 % was achieved in the ResNet152 model and 80.2 % in the VGG19 model. The highest rate among the classified models was 89 % in the DenseNet121 model. This model had a specificity of 0.87, a sensitivity of 0.90, an F1 score of 0.89 in women, a specificity of 0.90, a sensitivity of 0.87, and an F1 score of 0.88 in men. It was observed that sex could be predicted from the hyoid bone using deep learning methods DenseNet121, ResNet152, and VGG19. Thus, a method that had not been tried on this bone before was used. This study also brings us one step closer to strengthening and perfecting the use of technologies, which will reduce the subjectivity of the methods and support the expert in the decision-making process of sex prediction.Öğe A study on sex estimation by using machine learning algorithms with parameters obtained from computerized tomography images of the cranium(Nature Portfolio, 2022) Toy, Seyma; Secgin, Yusuf; Öner, Zülal; Turan, Muhammed Kamil; Oner, Serkan; Senol, DenizThe aim of this study is to test whether sex prediction can be made by using machine learning algorithms (ML) with parameters taken from computerized tomography (CT) images of cranium and mandible skeleton which are known to be dimorphic. CT images of the cranium skeletons of 150 men and 150 women were included in the study. 25 parameters determined were tested with different ML algorithms. Accuracy (Acc), Specificity (Spe), Sensitivity (Sen), F1 score (F1), Matthews correlation coefficient (Mcc) values were included as performance criteria and Minitab 17 package program was used in descriptive statistical analyses. p <= 0.05 value was considered as statistically significant. In ML algorithms, the highest prediction was found with 0.90 Acc, 0.80 Mcc, 0.90 Spe, 0.90 Sen, 0.90 F1 values as a result of LR algorithms. As a result of confusion matrix, it was found that 27 of 30 males and 27 of 30 females were predicted correctly. Acc ratios of other MLs were found to be between 0.81 and 0.88. It has been concluded that the LR algorithm to be applied to the parameters obtained from CT images of the cranium skeleton will predict sex with high accuracy.Öğe A study on the correlation between spleen volume estimated via cavalieri principle on computed tomography images with basic hemogram and biochemical blood parameters(Medrang, 2022) Sahin, Necati Emre; Öner, Zülal; Oner, Serkan; Turan, Muhammed KamilConsidering its hematological and immunological functions, spleen is a very important organ. A change occurs in its size as the spleen performs these functions. This study aims to examine the possible relationships between spleen volume and the basic hemogram and biochemical parameters in serum. Multidetector computed tomography images and basic hemogram and biochemical parameters of 74 adult individuals, 34 male and 40 female, who were found to be healthy, were used in the study. Spleen volume was estimated using the Cavalieri method on multidetector computed tomography images and the correlations between the volume value with basic hemogram and biochemistry parameters were researched. While negative significant correlations were found between the estimated spleen volume and lymphocyte percentage (r=-0.224) and platelet level (r=-0.271); positive significant correlations were found between hemoglobin level (r=0.228), hematocrit level (r=0.237), alanine aminotransferase (r=0.345), and erythrocyte level (r=0.375). As a result of this study, a relationship was found between spleen volume and lymphocyte percentage, hematocrit level, erythrocyte level, platelet level, and alanine aminotransferase level in serum. We believe that the results of the study will provide a larger perspective to clinicians in the diagnosis of diseases associated with spleen.
