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BACKGROUND AND OBJECTIVE Greene strain melanoma was implanted into the irides of eight nonpigmented rabbits to evaluate the blood flow in tumor vasculature. MATERIALS AND METHODS Conventional scanning laser ophthalmoscopy was used in conjunction with fluorescent microsphere angiography (FMA). Changes were documented on SVHS videotape for later analysis.… (More)
BACKGROUND AND OBJECTIVE Evaluation of the pathophysiologic mechanisms involved in the choroidal circulation is difficult because of the presence of the retinal pigment epithelium. The authors have developed a technique for measuring blood velocity in individual choroidal vessels using the scanning laser ophthalmoscope and intravenously injected indocyanine… (More)
—An interface for MEMS gyroscope is implemented in 0.18µm HVCMOS technology, and achieves a low noise floor of 1m°/sec/Hz over 200Hz BW. Electromechanical force-feedback and self-clocking scheme based on gyro resonance are implemented. The interface includes on-chip reference generation, decimation, and temperature compensation.
Retinopathy of prematurity (ROP) usually occurs after a prolonged exposure to normobaric hyperoxia in newborn mammals and infants. We hypothesized that experimental ROP also could develop after acute exposures to hyperbaric oxygenation (HBO), providing that a severe and maintained retinal vasoconstriction occurred during HBO exposure. Five- to… (More)
An interface for MEMS gyroscope is implemented in 0.18µm HVCMOS technology, and achieves a low noise floor of 1m°/sec/√Hz over 200Hz BW. Electromechanical ΣΔ force-feedback and self-clocking scheme based on gyro resonance are implemented. The interface includes on-chip reference generation, decimation, and temperature… (More)