Doga DemirelFlorida Polytechnic University · Computer Science
Doga Demirel
Doctor of Philosophy
About
34
Publications
1,845
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130
Citations
Citations since 2017
Publications
Publications (34)
Background
We previously developed grading metrics for quantitative performance measurement for simulated endoscopic sleeve gastroplasty (ESG) to create a scalar reference to classify subjects into experts and novices. In this work, we used synthetic data generation and expanded our skill level analysis using machine learning techniques.
Methods
W...
Introduction:
Task-specific metrics facilitate the assessment of surgeon performance. This three-phased study was designed to 1) develop task-specific metrics for stapled small bowel anastomosis, 2) obtain expert consensus on the appropriateness of the developed metrics, and 3) establish its discriminant validity.
Methods:
In Phase I, a hierarch...
Background
Endoscopic sleeve gastroplasty (ESG) is a minimally invasive endoscopic weight loss procedure used to treat obesity. The long-term goal of this project is to develop a Virtual Bariatric Endoscopy (ViBE) simulator for training and assessment of the ESG procedure. The objectives of this current work are to: (a) perform a task analysis of E...
Purpose:
We aim to develop quantitative performance metrics and a deep learning model to objectively assess surgery skills between the novice and the expert surgeons for arthroscopic rotator cuff surgery. These proposed metrics can be used to give the surgeon an objective and a quantitative self-assessment platform.
Methods:
Ten shoulder arthros...
In this study, we designed and implemented a virtual reality-based pedagogical framework. The framework can be altered to be used for any laboratory-based class such as biology, chemistry, and physics. The framework has four main modules: Interface, Companion, Virtual Reality Scene, and Online Dashboard. The “Interface” module allows for the human...
Object tracking in computer vision can be done either by using a marker-less or marker-based approach. Computer vision systems have been using Fiducial markers for pose estimation in different applications such as augmented reality [5] and robot navigation [4]. With the advancements in Augmented Reality (AR), new tools such as AugmentedReality uco...
In this paper, we propose an Advanced Driver Assistance System (ADAS) for people with disabilities. Our first prototype is a facial landmark and pose estimation system coupled with a drive-by-wire hardware. This is a Ford Fusion Plugin Hybrid research vehicle, and drive-by-wire conversion is done by Dataspeed, Rochester Hills MI. Our early prototyp...
Virtual Reality (VR) has become a large area of focus especially after the effects of COVID-19. During the lockdown students had to partake in different methods of learning outside of the traditional face-to-face classroom setting. In this paper, we focus on the type of locomotion that students would utilize when traversing in a virtual environment...
With COVID-19, colleges had to change the way they handle education. Students had to adapt to remote learning instead of the face-to-face learning they are used to. The transition to remote learning has proved to be difficult, but most courses have translated over without any problems. Unfortunately, the same cannot be said for the lab courses, whi...
PurposeRhinoplasty is one of the most common and challenging plastic surgery procedures. The results of the operation have a significant impact on the facial appearance. The planning is critical for successful rhinoplasty surgery. In this paper, we present a web application designed for preoperative rhinoplasty surgery planning.Methods
The applicat...
Background - Discriminating performance of learners with varying experience is essential to developing and validating a surgical simulator. For rare and emergent procedures such as cricothyrotomy (CCT), the criteria to establish such groups are unclear. This study is to investigate the impact of surgeons’ actual CCT experience on their virtual real...
Background
In minimally invasive surgery, there are several challenges for training novice surgeons, such as limited field‐of‐view and unintuitive hand‐eye coordination due to performing the operation according to video feedback. Virtual Reality (VR) surgical simulators are a novel, risk‐free, and cost‐effective way to train and assess surgeons.
M...
Background
This paper presents a novel iterative approach and rigorous accuracy testing for geometry modeling language - a Partition-based Optimization Model for Generative Anatomy Modeling Language (POM-GAML). POM-GAML is designed to model and create anatomical structures and their variations by satisfying any imposed geometric constraints using a...
Background
This paper presents a novel approach for Generative Anatomy Modeling Language (GAML). This approach automatically detects the geometric partitions in 3D anatomy that in turn speeds up integrated non-linear optimization model in GAML for 3D anatomy modeling with constraints (e.g. joints). This integrated non-linear optimization model requ...
Background
ESD is an endoscopic technique for en bloc resection of gastrointestinal lesions. ESD is a widely-used in Japan and throughout Asia, but not as prevalent in Europe or the US. The procedure is technically challenging and has higher adverse events (bleeding, perforation) compared to endoscopic mucosal resection. Inadequate training platfor...
Laparoscopic repair of groin hernias is widely accepted approach over open due to lesser pain, faster recovery, better cosmesis and decreased morbidity. However, there is still debate on its use in large inguino-scrotal hernias, recurrent hernias and history of lower abdominal surgery anticipating adhesions and difficulty in dissecting extensive he...
Introduction: ESD is an endoscopic technique for the en bloc resection of gastrointestinal lesions. ESD is a widely-used technique in Japan and throughout Asia, but not as prevalent in Europe or the US. The procedure is technically challenging and has higher adverse events (bleeding, perforation) compared to endoscopic mucosal resection. Inadequate...
Introduction: ESD is an endoscopic technique for the en bloc resection of gastrointestinal lesions. ESD is a widely-used technique in Asia, but not as prevalent in Europe or the US. The procedure is technically challenging and has higher adverse events (bleeding, perforation) compared to endoscopic mucosal resection. Inadequate training platforms a...
Background:
This paper presents the Generative Anatomy Modeling Language (GAML) for generating variation of 3D virtual human anatomy in real-time. This framework provides a set of operators for modification of a reference base 3D anatomy. The perturbation of the 3D models is satisfied with nonlinear geometry constraints to create an authentic huma...
Background:
Shoulder arthroscopy is a minimally invasive surgical procedure for diagnosis and treatment of a shoulder pathology. The procedure is performed with a fiber optic camera, called arthroscope, and instruments inserted through very tiny incisions made around the shoulder. The confined shoulder space, unintuitive camera orientation and con...
In this paper, we propose a Virtual Intraoperative Cholangiogram (VIC) training platform. Intraoperative Cholangiogram (IC) is an imaging technique of biliary anatomy with using fluorescent fluids sensitive to the X-Rays. The procedure is often employed to diagnose the difficult cases such as abnormal anatomy or choledocholithiasis during the lapar...
This paper presents a simulation of Virtual Airway Skill Trainer (VAST) tasks. The simulated tasks are a part of two main airway management techniques; Endotracheal Intubation (ETI) and Cricothyroidotomy (CCT). ETI is a simple nonsurgical airway management technique, while CCT is the extreme surgical alternative to secure the airway of a patient. W...
Background:
Despite the critical importance of cricothyroidotomy (CCT) for patient in extremis, clinical experience with CCT is infrequent, and current training tools are inadequate. The long-term goal is to develop a virtual airway skills trainer that requires a thorough task analysis to determine the critical procedural steps, learning metrics,...
This study presents an on-going design and development processes of a web based real-time virtual laparoscopy simulation for Pancreticoduodentomy (Whipple Procedure). In this early stage, we primarily focused on virtual camera navigation to improve hand-eye coordination of a surgeon. Pancreticoduodentomy, pancreatic surgery, is one of most challeng...
The MoMiReS is a mobile mixed reality system aimed at physical and occupational therapies. The goal of the system is to engage therapy patients by involving them in a fun to play 3D game environment through physical interactions with a wireless sensor glove. Our system offers a solution for rehabilitation of the hand, wrist originated problems with...
Projects
Projects (3)
Developing a virtual airway skill trainer to simulate airway management skills using a computer. A user is able to interact and manipulate virtual tissues and organs through haptic interface.
This project is led and developed at Center for Modeling, Simulation and Imaging in Medicine, Rensselaer Polytechnic Institute. It is funded by NIH, grant number: R01-HL119248.
