Publications by authors named "Figen Govsa"

Background: Anatomical variations of the aorta-celiac trunk are highly relevant in abdominal surgery and interventional radiology. Traditional CT-A images may fall short in conveying these complex structures. This study investigates whether patient-specific 3D models can enhance resident-level understanding of aorta-celiac trunk anatomy and support surgical education.

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General-purpose multimodal large language models (LLMs) are increasingly used for medical image interpretation despite lacking clinical validation. This study evaluates the diagnostic reliability of ChatGPT-4o and Claude 2 in photographic assessment of adolescent idiopathic scoliosis (AIS) against radiological standards. This study examines two critical questions: whether families can derive reliable preliminary assessments from LLMs through analysis of clinical photographs and whether LLMs exhibit cognitive fidelity in their visuospatial reasoning capabilities for AIS assessment.

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The objective of this study is to compare conventional anesthesia practices with the use of a preoperative, personalized, life-sized three-dimensional (3D) physical spine model in individuals where neuroaxial anesthesia is anticipated to be challenging due to difficult anatomy as difficult anatomy as the presence of spinal segment fusion, reduced spinal mobility and flexibility, joint stiffness, and movement restriction in the lumbar spine. Twenty individuals aged between 30 and 90, who were expected to undergo neuroaxial anesthesia with a difficult anatomical profile, and who had completed preoperative radiological evaluations, were included in the study. Radiological data were processed using Z-Suite software and printed as solid models with a Zortrax M300 3D printer.

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Background: In clinical scenarios such as pelvic fractures, damage to the obturator neurovascular bundle, obturator neuropraxia, and mesh placement in patients with incontinence, preserving the anatomical structures related to the obturator foramen (OF) is crucial. This study aims to investigate the anatomical variations of the OF as a guide for identifying failure criteria and improving success parameters in clinical practice.

Methods: The OFs of one hundred adult dry pelvic bones were examined.

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Background: This study aimed to determine the typical position and shape of the umbilicus among young individuals to guide the repositioning of the new umbilicus during abdominoplasty.

Methods: Standardized photographs of 63 young volunteers were analyzed to evaluate parameters such as the vertical and horizontal positions, length, ratio, and shape of the umbilicus. The study also established the mathematical relationships between the umbilicus and nearby anatomical structures like the xiphoid process, pubic symphysis, anterior superior iliac spine, iliac crests, and body mass index (BMI) to identify the ideal geometric shapes and positions.

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Gliomas are the most common primary tumors of the central nervous system, and advances in genetics and molecular medicine have significantly transformed their classification and treatment. This study aims to predict the IDH1 genotype in gliomas using radiomics and machine learning (ML) methods. Retrospective data from 108 glioma patients were analyzed, including MRI data supported by demographic details such as age, sex, and comorbidities.

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Background: External 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.

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Article Synopsis
  • The study examines the superficial palmar branch of the radial artery (SUPBRA) to improve techniques for reconstructing palmar skin, focusing on its anatomy and harvesting methods.
  • Researchers dissected 19 male hand specimens to gather detailed anatomical data, including dimensions and positions of key structures related to SUPBRA, analyzing how best to utilize this flap in reconstruction efforts.
  • Results indicated that the SUPBRA has adequate dimensions for viability in surgical applications, with specific measurements and the identification of critical vascular contributions that ensure successful use in cases of hand injury.
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Purpose: The challenges of spinal surgery can be overcome by deeply understanding the anatomical and surgical complexities of the region through the use of model simulators. This study investigates the impact of digitally designed simulators, specifically lumbar spinal models with abnormal curvature, on preoperative planning and their effectiveness as training tools. The study addresses challenges in spine surgery, such as unique deformities, classification issues, and associated abdominal structure abnormalities.

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Article Synopsis
  • Cervical fixation is frequently used to treat various spinal conditions and the study aimed to investigate risks related to high-riding vertebral arteries (HRVA), narrow C2 pedicles (NC2P), and ponticulus posticus (PP) that can occur during screw placement.
  • The study analyzed 382 C2 vertebrae using CT angiography to measure specific parameters and found that 9.6% of patients had HRVA and 13% had NC2P, with notable differences in prevalence between males and females.
  • The findings stressed the importance of understanding the presence of HRVA, NC2P, and PP to improve safety during cervical fixation procedures, with digital models aiding in planning the screw trajectory and minimizing the risk of
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Background: The need for an objective set of anterior trunk measurements, such as nipple and clavicular shoulder joints, is essential to quantify the anterior asymmetry present in scoliosis. This study aims to characterize breast asymmetry (BA) in young individuals with scoliosis using photogrammetry.

Methods: Digital photographs of the anterior trunk of the 51 scoliosis patients aged 4-20 years were taken from an anterior perspective.

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Background: The contour of the thigh is increasingly being recognized as crucial component of the ideal human physique, giving rise to heightened interest in attaining the perfect thigh profile. Notwithstanding, the contemporary landscape of cosmetic surgery appears to be bereft of efficient and precise objective methodologies to evaluate the outcomes of thigh contouring treatments. The present study is aimed to investigate the aesthetic appeal of varying thigh contours, employing specialized software as an indispensable instrument for quantitative and qualitative analysis.

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Purpose: Keeping the head in a neutral position is requisite for glasses/lenses/head-up designs, the suitability of oculo-plastic surgery and for the grading the eye shift. Anatomically incompatible glasses are one of the common problems affecting accommodation, reducing comfort and disturbing by causing symptoms such as dizziness and nausea. The oculo-palpebral measurements act as a key determinant in symmetrical facial attractiveness.

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Aim: The study aimed to define the coursing pattern of the anterior ethmoidal artery (AEA) in the orbit to minimize complications during endoscopic interventions.

Materials And Methods: A total of ten formalin-fixed cadaveric halves were included in the study. Orbital regions were shown with a superior approach.

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This study aimed to evaluate the superficial anatomy, kinesiology, and functions of the hand to reveal its morphometry and apply the findings in various fields such as prosthetic hand and protective hand support product design. We examined 51 young adults (32 females, 19 males) aged between 18-30. Hand photographs were taken, and measurements were conducted using ImageJ software.

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Objective: Variations in the upper attachment of the uncinate process (UP) are important because they can affect frontal sinus drainage and change the morphology. Functional endoscopic sinus surgery (FESS) is the primary technique used to treat chronic medically refractory rhinosinusitis. Uncinectomy is the basis of FESS technique to obtain the best possible result from surgery.

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Purpose: This article aims to discuss the use of three-dimensional (3D) printed models of vascular variation cases as an educational tool for undergraduate and postgraduate anatomy students.

Methods: This advanced study involved ten anatomy assistants who were provided with five distinct cases of congenital cardiovascular variations, each accompanied by a computed tomography angiography (CT-A) and 1:1 solid model format. The residents were asked to generate perceptions for both formats and then compare these perceptions based on identifying the variation, defining the structural features, and evaluating relevant educational perspectives.

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Background: The tear trough, hollow concavity of the lower eyelid, is one of the recognizable signs of facial aging. Anatomical description is essential in improving tear through deformity for facial rejuvenation.

Methods: Fifty cadaver were microdissected.

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Objective: The aim of this study was to compare duration of surgery, intraoperative fluoroscopy exposure, blood loss and the accuracy of pedicular screw placement between 3D model-assisted surgery and conventional surgery for AO spinal C-type injuries.

Methods: In this study 32 patients who were admitted with thoracolumbar AO spinal C-type injuries were included. These patients were divided randomly into two groups of 16 where one group was operated on using conventional surgery and the other group was operated on using 3D model-assisted surgery.

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Purpose: To investigate the prevalence and morphological characteristics of ponticulus posticus (PP) and ponticulus lateralis (PL) using computed tomography (CT) images on a large study sample of the Anatolian population. The presence of the PP and PL bridges can limit gap available for placement procedure through the bony elements of C1. Routine screw techniques are contraindicated because of high risk of fatal bleeding of vertebral artery (VA).

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Background: Standart interventional procedures such as screw instrumentation, aortic arch endovascular surgery and cervical nerve blockade may be of fatal risk due to anatomic reason of variations in the proximal part of the vertebral artery (VA). The aim of this study is to study the VA variations of the extracranial segments to evaluate the frequency of the incident to demonstrate the importance of clinical condition strategy.

Methods: The prevalence of variations and morphometric measurements of the VA in three-dimensional computed tomographic angiography (3D-CTA) scans were studied.

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Background: A fundamental aspect of oncosurgical planning in organ resections is the identification of feeder vessel details to preserve healthy organ tissue while fully resecting the tumors. The purpose of this study was to determine whether three-dimensional (3D) cancer case models of computed tomography (CT) images will assist resident-level trainees in making appropriate operative plans for organ resection surgery.

Methods: This study was based on the perception of surgery residents who were presented with 5 different oncosurgical scenarios.

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Background: Primary aspect of hepatic navigation surgery is the identification of source vascular details to preserve healthy liver which has a vascular anatomy quite challenging for the young surgeons. The purpose was to determine whether three-dimensional (3D) vascular pattern models of preoperative computed tomography (CT) images will assist resident-level trainees for hepatic surgery.

Methods: This study was based on the perception of residents who were presented with 5 different hepatic source vascular patterns and required to compare their perception level of CT, and 1:1 models in terms of importance of variability, differential of patterns and preoperative planning.

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Objective: This study examines the effect of the lower limb misalignment and its possible compensatory effect on plantar pressure in a normal population. The aim of this paper is to present a structured method for the analysis of posture and its changes using a standardized digital photography technique and plantar pressure measuring device.

Design: Cohort.

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