Browsing by Author "Erdem, M.Z."

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Anterior Clinoid Process in Chiari Malformation Type 2: Measurements, Classifications, Pneumatization Ratio, and Clinical Relevance
(Lippincott Williams and Wilkins, 2025) Karaaslanli, A.; Aslanoǧlu, B.; Erdem, M.Z.; Yalinkiliç, A.; Beger, B.; Şerifoǧlu, L.; Beger, O.
Objective: To reveal differences in morphologies of the anterior clinoid process (ACP) in patients with Chiari malformation type 2 (CMT2) by comparing normal subjects. Methods: Computed tomography slices of 50 CMT2 (sex: 21 females and 29 males, and mean age: 9.04±5.85 y) and 50 controls (sex: 21 females and 29 males, and mean age: 8.69±5.34 y) were included in the work. The angle (AACP), width (WACP), and length (LACP) of ACP, the width (WOS), and length (LOS) of the optic strut (OS), and the distance (DisOSACP) of OS to ACP were measured. Results: Patients with CMT2 had smaller LACP (P<0.001) and DisOSACP (P=0.007) than controls, but similar WACP, AACP, LOS, and WOS (P>0.05). ACP pneumatization was observed in 10% of CMT2s (10 ACPs) and 12% of controls (12 ACPs). CMT2 did not correlate with the pneumatization (P=0.651). Three configurations regarding ACP pneumatization were detected in CMT2 (types 0: 90%, 1: 8%, and 2: 2%) and controls (types 0: 89%, 1: 9%, and 2: 2%). Four types related to OS position were detected in CMT2 (types B: 5%, C: 30%, D: 51%, and E: 14%) and controls (types B: 3%, C: 15%, D: 69%, and E: 13%). This classification was affected by CMT2 (P=0.041). Conclusions: CMT2s have more anteriorly located OS, and shorter ACP by comparison controls. There is no association between CMT2 and the incidence of ACP pneumatization. Copyright © 2025 Mutaz B. Habal, MD. Unauthorized reproduction of this article is prohibited.
Comparative Evaluation of AI-Based Systems for Tinnitus
(Yuzuncu Yil Universitesi Tip Fakultesi, 2025) Yalınkılıç, A.; Erdem, M.Z.
Introduction: Today, with the development of technology, the variety of information sources has increased. It is now possible to access information obtained from encyclopedias in seconds with a few clicks of a button. Rapid developments in artificial in telligence (AI) and the widespread use of large language models (LLMs) such as ChatGPT, Gemini, and Perplexity have revolutionized access to medi cal information. However, the accuracy and readability of the answers provided by these models are critical, especially in the healthcare domain. This study evaluates the performance of ChatGPT, Gemini, and Perplexity in addressing frequently asked questions abou t tinnitus, a common symptom in otolaryngology practice. Materials and Methods: Twenty frequently asked questions about tinnitus were posed to the models and their responses were evaluated by two otolaryngologists using global quality (GQS) and Likert scales for accuracy and reliability and the Gunni ng-Fog Index (GFI) for readability. Results: The findings reveal no significant difference in the reliability and quality of information between the models, but it was ob served that Gemini came out ahead in readability and ChatGPT in accuracy. However, Perplexity lagged in both metrics. These results highlight the varying strengths and weaknesses of LLMs, emphasizing the importance of model selection based on user needs. For example, ChatGPT is ideal for complex medical information, while Gemini is more accessible to wider audiences. Conclusion: This study demonstrates the potential of AI-enabled systems in healthcare; however, we suggest that future improvements should increase both accuracy and accessibility. © 2025, Yuzuncu Yil Universitesi Tip Fakultesi. All rights reserved.
A Computed Tomography Study of the Sella Turcica in Chiari Malformation Type 2
(Lippincott Williams and Wilkins, 2025) Yalinkiliç, A.; Beger, B.; Erdem, M.Z.; Sönmez, B.; Karaaslanli, A.; Çetin, C.Ş.; Beger, O.
Objective: To reveal differences in morphology of the sella turcica (ST) in patients with Chiari malformation type 2 (CMT2) by comparison normal subjects. Methods: Computed tomography slices of 46 CMT2 (sex: 22 females and 24 males, and mean age: 8.80±5.87 y) and 46 controls (sex: 22 females and 24 males, and mean age: 8.48±5.13 y). Results: Patients with CMT2 had statistically similar ST size (its surface area, height, width, length, and diameter) to controls. Four configurations regarding Axelsson shape types were detected in CMT2s (normal sella: 71.70%, oblique anterior wall: 15.30%, irregularity: 6.50%, and pyramidal shape of the dorsum sellae: 6.50%) and controls (normal sella: 76.10%, oblique anterior wall: 10.90%, irregularity: 6.50%, and pyramidal shape of the dorsum sellae: 6.50%). Three configurations regarding Camp shape types were detected in CMT2s (oval: 28.30%, round: 67.40%, and flattened: 4.30%) and controls (oval: 26.10%, round: 71.70%, and flattened: 2.20%). CMT2 did not correlate with Axelsson (P=0.942) or Camp (P=0.804) shape types. Conclusion: The authors' computed tomography study displays that ST size and shape in CMT2s were similar to that of healthy subjects. © 2025 by Mutaz B. Habal, MD.