TEZLER: Recent submissions
Now showing items 61-80 of 516
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External multiprogrammable pacemaker
(BOĞAZİÇİ ÜNİVERSİTESİ/Biyo-Medikal Mühendislik Enstitüsü, 2018-08-06) -
Detection of fetal ECG using the SVD technique
(BOĞAZİÇİ ÜNİVERSİTESİ/Biyo-Medikal Mühendislik Enstitüsü, 2018-08-06) -
Design of a serial data collection system for electrical impedance tomography
(BOĞAZİÇİ ÜNİVERSİTESİ/Biyo-Medikal Mühendislik Enstitüsü, 2018-08-06)This thesis is concerned with the design and implementationof electronic hardware of a serial data collection system fore I ec t rica 1 impedance tomography. The ac tu a 1 des Ign uses thecurrent injection-voltage measurement ... -
Observation, parametric modelling and classification of respiratory sounds
(BOĞAZİÇİ ÜNİVERSİTESİ/Biyo-Medikal Mühendislik Enstitüsü, 2018-08-06)Auscultation is a widely used method in the diagnosis ofpulmonary diseases and in the analysis of respiratory sounds. Thecharacteristics of respiratory sounds show differences in pathological casesfrom normal cases. The ... -
EEG modelling using neural network and enchament averaging of brain evoked potentials
(BOĞAZİÇİ ÜNİVERSİTESİ/Biyo-Medikal Mühendislik Enstitüsü, 2018-08-06)In this thesis, a new parametric model for Evoked Potential (EP)estimation has been developed and implemented. It is assumed that prestimulusEEG data can be modeled by an implicit nonlinear autoregres~;ive(NAR) model. The ... -
Computer simulation of cardiac muscle based on contraction and relaxation experiments
(BOĞAZİÇİ ÜNİVERSİTESİ/Biyo-Medikal Mühendislik Enstitüsü, 2018-08-06)The object of this study is to simulate the mechanical properties ofcardiac muscle for both contraction and relaxation phases with acomputerized simulation technique. Mechanical representation is needed inorder to describe ... -
Estimation of body fluid losses during abdominal surgery and haemodialysis by impedance measurement technique
(BOĞAZİÇİ ÜNİVERSİTESİ/Biyo-Medikal Mühendislik Enstitüsü, 2018-08-06)In this study a portable, easy to use instrument ISdesigned to detect body fluid loss III patients undergoinghaemodialysis and abdominal surgery. Electrical impedances ofthe arm, the leg and the trunk are measured separately ... -
Simultaneously monitoring of standard ECG leads
(BOĞAZİÇİ ÜNİVERSİTESİ/Biyo-Medikal Mühendislik Enstitüsü, 2018-08-06)EGG belongs to the most helpful data in the diagnosis of heartillnesses. A multichannel recorded EGG can be more helpful than onechannel EGG track.The multichannel EGG monitor discussed in this thesis enables thephysiologist ... -
Mechanical properties of knee joint ligaments in comparison to tendons
(BOĞAZİÇİ ÜNİVERSİTESİ/Biyo-Medikal Mühendislik Enstitüsü, 2018-08-06) -
Statistical and failure analyses of orthopedic implants used in Turkey
(BOĞAZİÇİ ÜNİVERSİTESİ/Biyo-Medikal Mühendislik Enstitüsü, 2018-08-06)Recent advances in science and technology havegreatly improved both the design and efficiency oforthopedic implants thereby widening their use. Thisthesis aims both to determine the use of different typesof implants in ... -
Image reconstruction using the modified Newton Raphson algorithm for electrical impedance tomography based on finite element medhod
(BOĞAZİÇİ ÜNİVERSİTESİ/Biyo-Medikal Mühendislik Enstitüsü, 2018-08-06)Electrical Impedance Tomography (EIT), a noninvasive imagingmethod. is now beeing considered as complementary to other imagingtechniques such as x-ray, ultrasound. gamma camera. etc.E.I.T. injects constant current (20kHz ... -
Design of an ECG gated data collection system for electrical impedance tomography
(BOĞAZİÇİ ÜNİVERSİTESİ/Biyo-Medikal Mühendislik Enstitüsü, 2018-08-06)This thesis is concerned with the design of an `ECG-gatedelectronic hardware for data collection in electrical impedancetomography. The actual design uses the current injection-voltagemeasurement technique with 16 electrodes. ... -
Applicability of boride and nitride type ceramic coatings on surgical stainless as implant materials
(BOĞAZİÇİ ÜNİVERSİTESİ/Biyo-Medikal Mühendislik Enstitüsü, 2018-08-06)Biomaterials to be used as implants , in the human body, mustbe safe. These materials must never induce any biological rejectionor disorganized growth in the tissues in which they are immersed .In. this study the safety ( ... -
A study of hospital information systems from a technolgy selection viewpoint
(BOĞAZİÇİ ÜNİVERSİTESİ/Biyo-Medikal Mühendislik Enstitüsü, 2018-08-06)This thesis is a study of the Hospital Information Systems (HIS), withspecial interest in the selection of the underlying technology and possibleintegration of HIS to a nationwide Health Information System. An integratedHIS ... -
A data acquisition system for auditory evoked potential monitoring during anesthesia
(BOĞAZİÇİ ÜNİVERSİTESİ/Biyo-Medikal Mühendislik Enstitüsü, 2018-08-06)A microcontroller based instrumentation and data acquisition system is developed forevoked potential measurements. The system is intended for incorporation into systemsfor improving safety of anesthesia delivery and requires ... -
A neural network approach for noninvasive detection of coronary artery disease
(BOĞAZİÇİ ÜNİVERSİTESİ/Biyo-Medikal Mühendislik Enstitüsü, 2018-08-06)The major cause of death in many cases is Coronary Artery Disease (CAD). Thisdisease can be detected by angiography. However, this technique is expensive, risky andinvasive. Another noninvasive technique for detecting ... -
The use of laser scanning in the preparation of computerized skin pigmentation and topographic maps
(BOĞAZİÇİ ÜNİVERSİTESİ/Biyo-Medikal Mühendislik Enstitüsü, 2018-08-06)This project involves a study of imaging the surfacevariations in both pigmentation and topographical aspect,including a survey of the earlier studies of relevanttopics.Pigmentation and topographic view of skin varies ... -
Development of an expert for medical diagnosis most common lung and ear nose throat(ENT) diseases
(BOĞAZİÇİ ÜNİVERSİTESİ/Biyo-Medikal Mühendislik Enstitüsü, 2018-08-06)An expert system for medical diagnosis of the most common lung and ENT (earnose-throat) diseases was developed. This system diagnoses tuberculosis, pneumonia, lungcancer, chronic obstructive pulmonary system diseases (COPD), ... -
Acquisition of diastolic heart sounds via a noninvasive method
(BOĞAZİÇİ ÜNİVERSİTESİ/Biyo-Medikal Mühendislik Enstitüsü, 2018-08-06)It has recently been shown that sounds caused by the turbulent flow in partiallyoccluded coronary arteries may be used for detecting the location of occlusions and isvaluable for an early, nomnvaslve diagnosis of coronary ... -
A novel PC based system for evaluation and management of tinnitus using masking
(BOĞAZİÇİ ÜNİVERSİTESİ/Biyo-Medikal Mühendislik Enstitüsü, 2018-08-06)The objective of this study was to develop a system, using a PC with a soundboard,for tinnitus evaluation, and patient-specific masking sound generation. The system wastested on 98 patients who presented w~th severe tinnitus ...