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Auto-measurement for stent graft & virtual post stent endovascular evaluation of EVAR
The use of computer systems has influenced every area of the society including medical. In medical diagnosis, it is highly desirable to have detailed information on the anatomical and pathological features of the patient as possible. Medical visualization can help to overcome this problem by providing a 3D representation of the patient?s anatomy.This thesis introduces a medical visualization platform and measurement methods to help physicians in determining appropriate stent grafts for abdominal aortic aneurysms and diagnosing the aneurysm before and after stent graft repair. Selection of an appropriate stent graft for the aneurysm requires accurate measurements of the aorta and the aneurysm. Platform provides various measurement capabilities on a generated 3D model of the aorta.In this study, a system is proposed which generates 3D model of the aneurysm from computer tomography images using common segmentation and modeling methods. System provides measurement methods to gather crucial measurements such as aortic neck angulations and aneurysm length before EVAR operation for appropriate stent selection.Several evaluation methods were performed on the data models to verify the accuracy of the system. The results showed that the system has a high reliability.
Using sensors and embedded image processing for impaired users' computer interaction
his study is intended to create guidance on the application of Human Computer Interaction on people with disabilities to improve their computer controlling ability. We developed an assistive technology for disabled people. This assistive technology works on ?disabilities related to hand using? such as quadriplegia or bomb injuries. This study aims to describe how technology can be used for disabled ? computer interaction, what problems can be solved via this method and the importance of assistive technology in a disabled person?s life. It would be possible to use both computer and its peripheral devices by building an assistive technology device that can help impaired to use a computer by interacting with mouse interface directly. For this aim, a Disabled ? Computer Interaction (DCI) module was developed in this study with guidance of an experiment that applied on impaired people. Target audience was impaired people that are not able to use their hands for different reasons like paralysis (quadriplegia, diplegia, hemiplegia), traffic accidents, bomb injuries, combat training injuries, born defects, Multiple Sclerosis (MS), ALS, traumatic brain injury or struck damage. Technology we developed would be used by impaired people who are able to move their heads within limited angles.