نتایج جستجو برای: optical coherence
تعداد نتایج: 314691 فیلتر نتایج به سال:
This paper shows the technique of optical coherence tomography in the frequency domain Handbook of Optical Coherence Tomography, MarcelDekker. Simulation of polarized OCT signal is performed using vector approach V. V. Tuchin, Handbook of Coherent Domain Optical Methods: Biomedical Diagnostics. In a little over two decades, optical coherence tomography (OCT) has become an indispensable imaging ...
In fourier domain optical coherence tomography, we can measure the optical thickness ( refractive index n times thickness d), to obtain the retinal layers in order to diagnose many disorders. In this work, we introduce a new method for measurement of refractive index and physical thickness of multiple layers simultaneously by Fourier domain optical coherence tomography, without additional infor...
PURPOSE To assess the potential of a new imaging technique, optical coherence tomography, for the diagnosis and monitoring of central serous chorioretinopathy. Optical coherence tomography is a novel noninvasive, noncontact imaging modality that produces high longitudinal resolution, cross-sectional tomographs of ocular tissue. METHODS Optical coherence tomography is analogous to ultrasound, ...
Abstract: Optical coherence tomography is a non-invasive method of imagining the anterior and posterior segment eye. It commonly used in ophthalmic practice to diagnose monitor various pathologies eyeball. angiography (OCTA) useful tool visualize entire retinal choroidal microvasculature, allowing assessment perfusion without intravenous dye administration.
The quality of the image formed by an optical system is reduced by aberrations. This paper points out and attempts to correct blindness of lens aberration. Therefore modified Zernike moments were introduced to present lens aberration model within which their coefficients were estimated through poly-spectral analysis. The model parameters are divided into asymmetric and symmetric which are estim...
OBJECTIVE To introduce the use of optical coherence tomography with an operating microscope for intra-operative evaluation of the human larynx. METHODS A specially equipped operating microscope with integrated spectral domain optical coherence tomography apparatus was used during microlaryngoscopy. RESULTS Technical improvements in optical coherence tomography equipment (e.g. pilot beam, va...
purpose: to compare peripapillary retinal nerve fiber layer (rnfl) thickness among multiple sclerosis (ms) patients with or without a history of optic neuritis (on) and a healthy control group. methods: in this retrospective case-control study, 59 ms patients were recruited from a neurology clinic of imam hossein hospital. of which, 36 patients had at least one episode of on and 23 others had n...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید