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Comparison Of Hemodynamic Response Non-linearity Using Simultaneous Functional Near Infrared Spectrsoscopy And Magnetic Resonance Imaging Modalities
(Biomedical Engineering, 2008-09-17)
Blood oxygenation level dependent (BOLD) response, which is measured by functional magnetic resonance imaging (fMRI), is known to be a combination of various vascular parameters, among which deoxy-hemoglobin is argued to ...
Use Of Near Infrared And Visible Spectroscopies To Determine Optical Properties Of Rat Nervous System
(Biomedical Engineering, 2007-08-23)
Changes to the anatomical or physiological structure of the neuronal circuitry are known to produce a change in the optical properties of the tissue under investigation. The goal of this thesis is to determine changes in ...
Fiber Based Non-linear Excitation Fluorescence Microscopy
(Biomedical Engineering, 2007-08-23)
Non-linear excitation fluorescence microscopy is a high resolution, non-invasive biological imaging technique capable of imaging both in vitro and in vivo at the depths of several hundred microns. The goal of the thesis ...
Near Infrared Spectroscopy: A Study Of Cerebral Hemodynamics During Breathholding And Development Of A System For Hot Flash Measurement
(Biomedical Engineering, 2007-08-23)
Near Infrared (NIR) spectroscopy and imaging has become popular in research fields for the past 2-3 decades. My research focuses on the continuous wave near infrared imaging technique. The work consists of two main parts. ...
A Comprehensive Study Of The Effects Of EEG Electrode Arrays On MRI Signal-to-noise At 3T
(Biomedical Engineering, 2007-09-17)
Simultaneous EEG-fMRI offers much potential for gaining complementary, noninvasive information about brain function. While much effort has been devoted to the compelling problem of removing ballistocardiogram and gradient ...
Parametric And Non-parametric Analysis Of Carotid Sinus Baroreflex System Using Electrically Induced Muscle Contraction
(Biomedical Engineering, 2007-08-23)
The arterial pressure is an important physiological parameter which if not maintained at desired level may lead to fatal disorders or in worst situations even death. The physiological feedback control mechanism in order ...
Surgical Fluorescence Imager For Visualizing Anteriorly Placed Biliary Structures, In-vivo During Human Cholecystectomy
(Biomedical Engineering, 2008-09-17)
Cholecystectomy is one of the most common procedures occurring in United States to cure gall bladder diseases. There are two means of performing this procedure, Open Cholecystectomy and Laparoscopic Cholecystectomy, the ...
Flow Rate Measurement Of In Situ Perfusion Through The Aqueous Humor Outflow Network
(Biomedical Engineering, 2007-08-23)
A system was developed to measure the instantaneous perfusate flow rate through the aqueous humor outflow network of a human eye, while under constant pressure. The system monitors real-time weight changes of a perfusate ...
Model Driven Analysis Of Optical Reflectance Spectroscopy For Detection Of Human Prostate And Kidney Cancers
(Biomedical Engineering, 2008-09-17)
Renal cell carcinoma is one of the most common forms of kidney cancer originating from the renal tubule. During surgery, it is difficult for the surgeons to identify the cancer tissue from the normal tissue and also the ...
Optimization Of Reconstruction Parameters In Brain Activation Studies
(Biomedical Engineering, 2009-09-16)
Diffuse Optical Imaging (DOI) is being extensively used in brain activation studies for the quantification of hemodynamic changes in the cerebral cortex. Many investigators have utilized the commercially available CW5 DOI ...