M.S. Theses: Recent submissions

  • Measuring changes in cerebral oxygenation and hemodynamics during obstructive sleep apnea by functional near infrared spectroscopy 
    Alptekin, Zeynep. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2006., 2006.)
    One of the most important integral part of human existence is sleep. It has beenthought that sleep has a recovery function for brain. This importance opens a new area ofresearch about sleep disorders. Obstructive sleep ...
  • Optimal collimator design using Monte Carlo Simulation and RSM for breast scintigraphy 
    Bilgin, Barış. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2006., 2006.)
    Scintimammography can be a useful adjunct to physical examination andmammography for the detection and characterization of breast tumors, especially forpatients with dense breast tissue, architectural distortion of the ...
  • SMT: Split/merge fiber tractography for MR-DTI 
    Bozkaya, Uğur. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2006., 2006.)
    Magnetic Resonance Diffusion Tensor Imaging is a recent imaging modalitywhich has shown promise as a non-invasive tool for estimating the orientation andquantity of white matter tracts in vivo. It has been shown that the ...
  • Effects of repetitive retinotopic stimulus on visual cortex fMRI signal 
    Hamamcı, Andaç. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2006., 2006.)
    The aim of this study is to investigate the effects of the repetitive stimuluson the retinotopic functional magnetic resonance imaging results obtained. Screenprojectorsystem is constructed to show visual stimulus to ...
  • Biomechanical analysis of sit-to-stand motion in children with backpack load 
    Seven, Yasin Barış. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2006., 2006.)
    Sit-to-stand (STS) motion is a highly coordinated and energy demanding task ofdaily activities. The primary objective of this study was to investigate the effects of backload on the sagittal plane kinematics and kinetics ...
  • Supra-threshold contrast perception in glaucomatous and normal human subjects 
    Utine, Canan Aslı. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2006., 2006.)
    The lateral inhibition mechanism of the sensorineural retina provides our visual systemwith a mean to sharpen the boundary between different luminances. Contrast is defined as the ratioof the difference in the luminance ...
  • 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 ...
  • 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 ...
  • Standards for biomedical devices in foreign countries and Turkey 
    Eryolalan, Korhan. (Thesis (M.S.) - Bogazici University. Institute of Biomedical Engineering, 1985., 1985.)
    In this study, the standards and standardizing organizations of biomedical devices which are very important in healthcare are investigated. The regulations of biomedical devices in U.S.A, Canada and Europe countries are ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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. ...
  • Establishing biomedical equipment maintenance programs for hospitals in Turkey 
    Erdim, Gülsün. (Thesis (M.S.) - Bogazici University. Institute of Biomedical Engineering, 1985., 1985.)
    The function of a hospital is to meet the acute health needs of the community it serves. Biomedical instrumentation maintenance programs have been established to help hosp-itals meet these needs through the effective use ...

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