Browsing by Author "Topalli, D."
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Conference Object Citation Count: 0NEURONAVIGATION SKILL TRAINING THROUGH SIMULATION: INSIGHTS FROM EYE DATA(Iated-int Assoc Technology Education A& development, 2016) Topallı, Damla; Topalli, D.; Borcek, A. O.; Tokdemir, G.; Maras, H. H.; Tonbul, G.; Aydin, E.; Information Systems EngineeringNeuronavigation systems are developed to support the brain surgery operations. Because of its complex anatomical structure, the neurosurgery is a risky and critical operation. The surgeon is required to perform the operation in a very small area with very restricted movements. The neuronavigation systems are developed to help the surgeon during the operation to show the current position of the surgery with respect to the 3D virtual model of the patient. In these systems, the 3D virtual model of the patient is created according to the medical data (MRI/BT) of the patient. Hence these systems work like navigations systems that are used in driving a car. The surgeon uses this system by controlling the system through a software interface and its user interface and correlates the current position of the operation with the 3D patient virtual model. In this way the surgeon checks the critical anatomical structures through this system and eliminates possible risks. Hence surgeons who will perform such operations are required to develop several skills to manage this very complicated environment. They are required to perform the operation according to the information coming from the navigation display. Additionally, in order to reach relevant information from the navigation display they have to control the navigation panel. In order to prepare surgeons to manage this very complicated environment, their required skills need to be improved during the training period. In this study, to better understand the surgeons' behaviours while managing the tasks related to the surgical navigation procedures, a simulation based environment is developed and an experimental study is conducted with 10 people. Their eye data and their performance data is recorded based on the simulated tasks. The results of the study is analysed statistically and descriptively. The results show that it is possible to control a neuronavigation display through eye movements which could be an alternative human-computer interaction option for designing the neuronavigation systems' user interfaces. Secondly, it is shown that performing a task according to the results of a second information source (neuronavigation system) lowers the general performance in terms of travelled distance with the operation tool and camera (endoscope). However the success level while performing each task and the time spent values are similar in both cases. On the other hand the number of errors is higher in the first scenario. Hence, the surgical education programs need to provide appropriate solutions to better understand and measure the skill levels of trainees on such tasks and to improve their skills through virtual practice systems.Conference Object Citation Count: 0UNDERSTANDING SKILL IMPROVEMENTS BY PRACTICING THE USAGE OF SURGICAL INSTRUMENTS(Iated-int Assoc Technology Education A& development, 2016) Topallı, Damla; Topalli, D.; Information Systems EngineeringToday, surgical education environments have serious problems. Nowadays, a large part of surgical skills are learned in the operating room while operating on patients. As technology developed, surgical field has been supported by a video image, by using camera named as endoscope and thin surgical devices instead of fingers. In order to make operations more cost effective, operation time should be reduced. Hence, there is a need to improve surgery performance in an efficient way. Efficiency is related to time, cost as well as the ethical issues. Ethical perspective is vital to limit surgery complications and maximize patient safety should be considered. Minimum education should be done on patient. Hence, several virtual educational environments have been developed to address these problems of surgical education. In this study, a surgical simulation game for practicing the usage of surgical instruments is developed as a part of Endoneurosurgery Education Project (ECE). In the game scenarios, a surgical instrument (cautery) is introduced to the participants and tasks are assigned in order to practice the usage of that equipment. The participants are asked to perform the tasks in virtual environment with their dominant and non-dominant hand. Ten equal tasks are prepared in the simulated environment to better understand the task performance of the participants by considering the number of repetition, the task duration and distance taken by the instrument to perform each task. The experimental results of this study give insight about the ideal training period, and number of repetitions needed to accurately use the instrument for surgical education. According to these results in this study some guidelines are developed for the instructional system designers to improve the support level of simulation-based education systems on the current educational programs.Conference Object Citation Count: 0USING INTELLIGENT SUPPORT SYSTEMS FOR ENDOSCOPIC SURGERY TRAINING: ANALYSIS OF HAND MOTION(Iated-int Assoc Technology Education & development, 2017) Topallı, Damla; Cagiltay, N. E.; Information Systems EngineeringThe use of simulation techniques in medical education is an emerging topic in surgical training process, and there are limited number of studies found in this field in our country and the world. Recently, using the machine learning techniques in surgical training constitutes a new area of research. By using these techniques, cost-efficient educational tools will be developed in order to improve education efficiency and patient safety. In this scope, it is aimed to develop an intelligent support system by examining the hand movements of the experienced surgeons during a surgical education process and guide less-experienced surgeons. In order to develop this system, previously developed surgical simulation system infrastructure in ECE Project supported by Tubitak-1001 program will be used. The hand movements' data of experts obtained by special tactile devices (haptics) are analyzed with an experimental study. The results of this study aimed to improve the surgical simulation training process with the machine learning algorithm developed and therefore, provide a significant contribution to the surgical training process.