Results 351 to 360 of about 3,498,742 (390)
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Cardiac optical coherence tomography
Heart, 2008Acute coronary syndromes (ACS) are a major cause of morbidity and mortality in the developed world. The risk of future acute coronary events appears to be largely dependent on the presence of morphologically distinct, atherosclerotic plaques,1 rather than the presence of severely stenotic lesions as assessed by angiography.2 Angiography, however ...
O C, Raffel, T, Akasaka, I-K, Jang
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Questioning Optical Coherence Tomography
Ophthalmology, 2012The increasing sophistication of modern technology is impressive to even the most jaded, but after a while it gets easier to think of technological devices, or in the case of ophthalmic imaging equipment, as black boxes that accomplish specific tasks. The problem with black boxes is that we may fail to appreciate the logical underpinnings of how they ...
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Coherent Optical Noise Suppression
Applied Optics, 1968The performance of coherent optical spatial filtering systems is often limited by lens noise. Imperfections in the optical components generate noisy diffraction patterns when illuminated by spatially coherent light. This random noise often masks useful signals in the output images.
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Binocular Optical Coherence Tomography
Ophthalmic Surgery, Lasers and Imaging Retina, 2011The use of optical coherence tomography (OCT) in the field of ophthalmology has increased rapidly in recent years and may continue on this trajectory as more indications for OCT imaging are described. Recent pressures on the healthcare system, such as rising costs, increasing demand, and decreasing reimbursements, suggest that continued growth in OCT ...
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Coherent optical eigenstate memory
Annual Meeting Optical Society of America, 1985A high capacity associative memory would find applications in computing and perhaps lend some insight into the understanding of collective neural networks and human memory. In this work an entirely optical associative memory device is proposed. The device operates on the principle that an optical resonator employing a holographic grating can have user ...
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Coherent fiber optic reflectometer
Conference on Precision Electromagnetic Measurements, 1991A novel method for measuring the reflection of fiber-optic devices with light carrier frequency dependence such as fiber resonators is proposed. and the design of an experiment based on the proposed principle is described. Results of the measurement of the power transmission and power reflection coefficients of a 20-cm Fabry-Perot-type fiber resonator ...
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Coherence resonance in neural networks: Theory and experiments
Physics Reports, 2023Alexander N Pisarchik
exaly
Optical coherence elastography
Nature Reviews Methods PrimersManmohan Singh +3 more
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Optical Coherence Tomography–Guided versus Angiography-Guided PCI
New England Journal of Medicine, 2023Ziad A Ali
exaly