Browsing M.S. Theses by Issue Date

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  • Time-frequency analysis of event related brain potentials elicited with four different cognitive paradigms 
    Keskin, H. Yasemin. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2003., 2003.)
    Event related potentials (ERPs), which reflect fundamental cognitive operations, are generated by the parallel and/or the sequential processing of different neural groups in the brain. In time domain representation of ERPs, ...
  • Source localization of electrical dipoles in electroencephalogram (EEG) 
    Duru, Adil Deniz. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2004., 2004.)
    As a noninvasive neuroimaging method, the dipole source localization of brain electrical activity has a much higher temporal resolution when compared with the functional magnetic resonance (fMRI) or Positron Emmision ...
  • Design of a video laryngeal stroboscopy system for studying vocal fold pathology 
    Işık, Gökhan. (Thesis (M.S.)-Bogazici University. Institute of Biomedicail Engineering, 2004., 2004.)
    Video Laryngeal Stroboscopy (VLS) is a stroboscopic imaging technique that allows observations of standstill and slow motion images of vibrating vocal folds. It is a valuable tool for studying vocal fold pathology, for ...
  • A new hardware design for cardiac passive acoustic localization 
    Civelek, Yahya. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2005., 2005.)
    Heart sounds contain valuable information about the function of the heart; expert clinicians can diagnose many heart disorders by listening to these sounds. One dimensional visual representation of heart sounds called ...
  • Computer assisted bone age assessment 
    Haktan, Mahmut. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2005., 2005.)
    Bone age assessment based on the radiological examination of the left hand and wrist is a procedure frequently performed to evaluate the growth of pediatric patients. In this thesis we examined studies conducted on the ...
  • Intraoperative coronary blood flow and myocardial perfusion imaging method by means of thermal image processing 
    Susam, Mehmet. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2005., 2005.)
    One of the most popular surgical operations is coronary artery by-pass grafting (CABG) operation, since coronary arterial disease is one of the leading causes of death and the main surgical treatment modality for this ...
  • Optical properties of native and coagulated lamb brain tissues in vitro in the visible and near-infrared spectral range 
    Özer, Korhan. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2005., 2005.)
    The aim of this study was to estimate optical properties ofnative and coagulated lamb brain tissues at three different temperatures (45⁰C, 60⁰C, 80⁰C) by means of measured data which formed due to light-tissue interactions ...
  • Cancer diagnosis via elastic scattering spectroscopy 
    Ateş, Filiz. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2005., 2005.)
    The goals of this study were to test the reliability of CancerScanner system whetherit can detect the optical alteration of tissue dependent on temperature and to test the systemon human tissues in which system can detect ...
  • Cerebrovascular dynamics in migraine measured with fNIRS 
    Bilensoy, Didem. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2005., 2005.)
    Migraine is a neurovascular pain syndrome affecting nearly 12 per cent of world's population. Migraine decreases the life quality and work efficiency of patients drastically, and causes billions of dollars of economical ...
  • Cross calibration of DEXA by using European spine phantom 
    Bayraktar, Serkan Uğur. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2005., 2005.)
    Osteoporosis is a disease characterized by low bone mass and micro-architecturaldegradation of bone tissue, leading to enhanced bone fragility and a consequent increase infracture risk. Among many risk factors for osteoporosis, ...
  • Microcontroller based high power 809-nm diode laser design for biophotonics applications 
    Geldi, Cem. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2005., 2005.)
    High power diode lasers irradiating near infrared light (800-980-nm) have a widerange of applications in many branches of medicine due to the developments in the lasertechnology for the last 20 years. The ability of having ...
  • Comparison of iterative closest point (ICP) and thin-plate splines methods for the 3-D image registration 
    Parlak, İsmail Burak. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2005., 2005.)
    In medical image registration, algorithm choice and its application on images depend on the localization and where and how images are acquired. In this study, a linear algorithm; Iterative Close Point and an elastic method; ...
  • Design of a respiratory monitor for the teaching laboratory 
    Ertan, Can Kemal. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2005., 2005.)
    The goal of this thesis was to develop a cost-effective, portable and user-friendlyrespiratory monitor that gives the opportunity to observe pressure, flow and volumewaveforms as well as time based ventilation data. An ...
  • Wireless functional optical imager 
    Karaca, Serkan. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2005., 2005.)
    Functional imaging of brain offers the capability to investigate cerebral blood circulation and oxygen metabolism, as well as activity levels of the nervous system. In recent years, technological progress in biophotonics ...
  • Tissue welding with 980-nm diode laser system 
    Korkut, Zeynep Dereli. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2005., 2005.)
    In this study, tissue welding with 980 nm laser system which is first-time in the literature, was performed. Effects of 980-nm diode laser on tissue welding are not studied before. Hence, a preliminary study was done to ...
  • Design of a transtelephonic ECG and thermometer device using the mobile phone 
    Yazıcı, Yüksel. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2005., 2005.)
    The need of effective and low cost personal and emergency monitoring telmedicine solutions are the main concerc of this porject. The patients who have heart diseases, ambulances are common example of possible emergency ...
  • Evaluation of renal function using first pass contrast enhanced MRI 
    Saldoğan, Okan. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2005., 2005.)
    Magnetic Resonance Imaging (MRI) of the kidney has a great potential because the functional parameters, which can be investigated obtained noninvasively are multiple: glomerular filtration, tubular concentration and transit, ...
  • Formation of Turkish norms in gait analysis 
    Yılmaztürk, Şule. (Thesis (M.S)-Bogazici University.Institute of Biomedical Engineering, 2005., 2005.)
    In this study, a normative database of basic gait parameters, kinematics and kinetic patterns for 181 normal subjects with the ages of four, five, seven, eight, nine, sixteen, seventeen, eighteen and twenty is reported. ...
  • Measurement of vibrotactile thresholds of the non-pacinian channel 
    Kalkancı, Özge. (Thesis (M.S)-Bogazici University.Institute of Biomedical Engineering, 2005., 2005.)
    The aim of this study is to measure the thresholds of the Non-Pacinian I (NP I)channel which is believed to be mediated by rapidly-adapting (RA) fibers. Thresholds of the NP I channel were measured using a two-interval ...
  • Spatial analysis of event related brain potentials (ERP) by wavelet transform 
    Bayram, Ali. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2005., 2005.)
    Localization of the cognitive activity in the brain is one of the major problems inneuroscience. Current techniques for neuro-imaging are based on fMRI, PET, and ERPrecordings. The highest temporal resolution, which is ...

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