PDF in Oftalmologia in italiano/inglese (articoli presenti: 941)

Optical Microangiography: A Label Free 3D Imaging Technology to Visualize and Quantify Blood Circulations within Tissue Beds in vivo


Optical Microangiography: A Label Free 3D Imaging Technology to Visualize and Quantify Blood Circulations within Tissue Beds in vivo


Area Tematica : oct

Comparison of Anterior Segment-Optical Coherence Tomography Parameters in Phacomorphic Angle Closure and Acute Angle Closure Eyes


Comparison of Anterior Segment-Optical Coherence Tomography Parameters in Phacomorphic Angle Closure and Acute Angle Closure Eyes


Area Tematica : oct

Multifunctional 1050 nm Spectral Domain Oct System at 147 khz for Posterior Eye Imaging


Multifunctional 1050 nm Spectral Domain Oct System at 147 khz for Posterior Eye Imaging


Area Tematica : oct

Ultra–Short-Term Reproducibility of Speckle-Noise Freed Fluid and Tissue Compartmentalization of the Choroid Analyzed by Standard OCT


Ultra–Short-Term Reproducibility of Speckle-Noise Freed Fluid and Tissue Compartmentalization of the Choroid Analyzed by Standard OCT


Area Tematica : oct

Advances in Ophthalmologic Imaging


Advances in Ophthalmologic Imaging


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MULTIMODAL APPROACHES TO MANAGING OCULAR PATHOLOGY Sponsored by Topcon


MULTIMODAL APPROACHES TO MANAGING OCULAR PATHOLOGY Sponsored by Topcon


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Heidelberg Engineering Announces OCT Angiography –

Heidelberg Engineering Announces OCT Angiography – 

Next Generation Vascular Imaging

Clinical Experience Presented at International Congress on “En face” OCT imaging – Advances in OCT – OCT Angiography (December 12-13, Rome, Italy) 

December 16, 2014 – Heidelberg, Germany – Heidelberg Engineering GmbH demonstrates OCT Angiography for the SPECTRALIS diagnostic imaging platform.
“The SPECTRALIS OCT Angiography provides a three dimensional reconstruction of the perfused microvasculature within the retina and choroid. In contrast to traditional fluorescein and ICG angiography the retinal and choroidal blood flow can be detected without the need to inject any dye and can be analyzed layer-by-layer using the en-face visualization. Although the clinical evaluation of OCT angiography is ongoing, the clinical potential of this new technology is tremendous,” explains Prof. Gabriel Coscas, Paris, France.
The SPECTRALIS OCT Angiography performs sequential OCT cross-sectional scans to detect motion of scattering particles such as erythrocytes within the eye’s vasculature. Key for this technology are high-resolution OCT scans, and the ability to repeatedly measure the same location at the retina.
“The SPECTRALIS system combines a 70 kHz A-scan rate with Heidelberg Engineering’s proprietary TruTrack high-speed active eye tracking, to provide unmatched high-resolution OCT images. With the transverse section analysis the system is able to virtually dissect finest structures of the vasculature non-invasively,“ mentions Dr. Jan Dechent, product manager at Heidelberg Engineering.
The OCT Angiography feature will be based on the recently announced OCT2 module for the SPECTRALIS diagnostic imaging platform. All expandable SPECTRALIS systems, those purchased with the Advanced Upgrade Package or with the MultiColor module, can be upgraded to the OCT2 module and OCT Angiography. The OCT Angiography module is another example of the outstanding SPECTRALIS value proposition to extend the life and function of the equipment, making new and meaningful technological developments available to existing customers.


Heidelberg Engineering Announces OCT Angiography –


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ZEISS AngioPlex OCT Angiography Overview


ZEISS AngioPlex OCT Angiography Overview


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OCT Angiography: The Newest Frontier for the Revolutionary Technology


OCT Angiography: The Newest Frontier for the Revolutionary Technology


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Wide-Field OCT Angiography at 400 KHz Utilizing Spectral Splitting


Wide-Field OCT Angiography at 400 KHz Utilizing Spectral Splitting


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Optical Coherence Tomography Angiography of Optic Disc Perfusion in Glaucoma


Optical Coherence Tomography Angiography of Optic Disc Perfusion in Glaucoma


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ZEISS Presents Its New Generation of Vascular Imaging: OCT Angiography

ZEISS Presents Its New Generation of Vascular Imaging: OCT Angiography

Prolific research from ZEISS Medical Technology at the recent 2015 Association for Research in Vision and Ophthalmology (ARVO) Annual Meeting in Denver highlights the company’s standing as the leader in OCT technology and innovation


DUBLIN, CA USA

Nearly two decades ago, ZEISS was the first company to introduce optical coherence tomography (OCT) for clinical use in ophthalmology and optometry. The 20 presentations on OCT angiography by ZEISS and its research collaborators at this year’s ARVO meeting in May are testament to the company’s dedication to continued innovation and advancing the practice of medicine.

ZEISS is developing OCT angiography for both spectral domain (SD) and swept source platforms. The OCT angiography application on the SD platform is currently under FDA review and is 510(k) pending.

“The en face angiograms from the ZEISS SD-OCT angiography prototype show me a detailed picture of the retinal vasculature of the macula. Being able to visualize so quickly areas of macular ischemia in my diabetic retinopathy patients, without the use of a contrast agent, could really help me more easily determine which diabetic macular edema patients are eligible for treatment,” said Professor Jean-Francois Korobelnik, chief of the Ophthalmology Service at the Bordeaux Central University Hospital in Bordeaux, France, who has been conducting investigative research on OCT angiography in collaboration with ZEISS.

OCT Angiography: Improved Visualization
Progression of eye disease in the posterior segment is often accompanied by changes in the retinal vasculature. Fluorescein angiography (FA) has been the gold-standard imaging modality for visualizing such changes. However, FA has two limitations: it requires the use of an injected contrast agent, and it captures the entire retinal vascular volume without the ability to segment imaged features by their depth. 

OCT angiography aims to address these limitations by enabling easy, high-resolution depth resolved visualization of the separate layers of the retinal and choroidal vasculature. Without the need for a contrast agent, OCT angiography offers doctors a quick and relatively low-risk alternative to FA to clearly visualize blood flow. OCT angiography detects motion of scattering particles such as red-blood cells within sequential OCT B-scans performed repeatedly at the same location of the retina. ZEISS is able to utilize its retinal tracking system, FastTrac™, to provide motion-artifact-free images of the perfused retina.

One study presented at ARVO by ZEISS and its research collaborators directly compared OCT angiography (using a prototype based on the CIRRUS HD-OCT 5000) with fluorescein angiography (FA) imaging, in a subject who had diabetic retinopathy. There was a clear correlation between the OCT angiography and fluorescein images, plus OCT angiography was found to reveal much clearer microvascular details. OCT angiography also provided depth resolved information that was not available with FA.

The OCT angiography research from ZEISS at ARVO featured collaboration with researchers from leading institutions, including UCLA, the University of Miami Health System, the University of Southern California and the University of Washington.

“It is an exciting time in ophthalmology with the advent of OCT angiography. It allows us to quickly and comfortably visualize the vasculature of the retina without introducing the risks associated with a contrast agent,” said Giovanni Staurenghi, professor of ophthalmology and chairman of the University Eye Clinic at Luigi Sacco Hospital in Milan, Italy, who is conducting OCT angiography research in conjunction with ZEISS.


ZEISS Presents Its New Generation of Vascular Imaging: OCT Angiography


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AngioVue Brochure.pdf


AngioVue Brochure.pdf


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Low-cost laser speckle contrast imaging of blood flow using a webcam


Low-cost laser speckle contrast imaging of blood flow using a webcam


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Speckle Imaging with the SOAR and the Very Large Telescopes


Speckle Imaging with the SOAR and the Very Large Telescopes


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Laser speckle contrast imaging theoretical and practical limitations


Laser speckle contrast imaging theoretical and practical limitations


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Laser speckle contrast imaging in biomedical optics


Laser speckle contrast imaging in biomedical optics


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Terapia Adronica


Terapia Adronica


Area Tematica : tumori oculari

Laser in Medicina


Laser in Medicina


Area Tematica : cataratta

Laser speckle contrast imaging for measuring blood flow


Laser speckle contrast imaging for measuring blood flow


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Retinal blood flow in mild cognitive impairment and Alzheimer’s disease


Retinal blood flow in mild cognitive impairment and Alzheimer’s disease


Area Tematica : retinopatie

Doppler OCT and OCT Angiography for In Vivo Imaging of Vascular Physiology


Doppler OCT and OCT Angiography for In Vivo Imaging of Vascular Physiology


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Ultrahigh-speed non-invasive widefield angiography


Ultrahigh-speed non-invasive widefield angiography


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Future OCT Technology


Future OCT Technology


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Feature space optical coherence tomography based micro-angiography


Feature space optical coherence tomography based micro-angiography


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Angio OCT, Dye Less Angiography, A New Approach of Age Related Macular Degeneration (ARMD)


Angio OCT, Dye Less Angiography, A New Approach of Age Related Macular Degeneration (ARMD)


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Complex differential variance algorithm for optical coherence tomography angiography


Complex differential variance algorithm for optical coherence tomography angiography


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Laser speckle contrast imaging in biomedical optics


Laser speckle contrast imaging in biomedical optics


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Anterior ophthalmic imaging


Anterior ophthalmic imaging


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Commissioning Guide: Glaucoma (Long Version) by The Royal College of Ophthalmologists


Commissioning Guide: Glaucoma (Long Version) by The Royal College of Ophthalmologists


Area Tematica : glaucoma

Analisi dello spettro


Analisi dello spettro


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Complex differential variance algorithm for optical coherence tomography angiography


Complex differential variance algorithm for optical coherence tomography angiography


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Angio Oct Future Tecnology


Angio Oct Future Tecnology


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Automated non-rigid registration and mosaicing for robust imaging of distinct retinal capillary beds using speckle variance optical coherence tomography


Automated non-rigid registration and mosaicing for robust imaging of distinct retinal capillary beds using speckle variance optical coherence tomography


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Laser speckle contrast imaging in biomedical optics


Laser speckle contrast imaging in biomedical optics


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Analisi Spettrale


Analisi Spettrale


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Recent Developments in Vascular Imaging Techniques in Tissue Engineering and Regenerative Medicine


Recent Developments in Vascular Imaging Techniques in Tissue Engineering and Regenerative Medicine


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Real-time speckle variance swept-source optical coherence tomography using a graphics processing unit


Real-time speckle variance swept-source optical coherence tomography using a graphics processing unit


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Wide-Field OCT Angiography at 400 KHz Utilizing Spectral Splitting


Wide-Field OCT Angiography at 400 KHz Utilizing Spectral Splitting


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GPU Acceleration of Processing and Visualization for Various Optical Coherence Tomography Methodologies


GPU Acceleration of Processing and Visualization for Various Optical Coherence Tomography Methodologies


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Wide-Field OCT Angiography at 400 KHz Utilizing Spectral Splitting


Wide-Field OCT Angiography at 400 KHz Utilizing Spectral Splitting


Area Tematica : oct

Multifunctional 1050 nm Spectral Domain Oct System at 147 khz for Posterior Eye Imaging


Multifunctional 1050 nm Spectral Domain Oct System at 147 khz for Posterior Eye Imaging


Area Tematica : oct

Complex differential variance algorithm for optical coherence tomography angiography


Complex differential variance algorithm for optical coherence tomography angiography


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Teoria dei segnali


Teoria dei segnali


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Introduzione ai segnali biomedici


Introduzione ai segnali biomedici


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Qantitative OCT angiography of optic nerve head blood flow


Qantitative OCT angiography of optic nerve head blood flow


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Functional optical coherence tomography: principles and progress


Functional optical coherence tomography: principles and progress


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Premium care for your monofocal patients: Achieving optimal ELP with the AcrySof platform


Premium care for your monofocal patients: Achieving optimal ELP with the AcrySof platform


Area Tematica : cataratta

Status report on the continuum toward super vision, phaco-less cataract surgery, and presbyopia correction without compromise


Status report on the continuum toward super vision, phaco-less cataract surgery, and presbyopia correction without compromise


Area Tematica : cataratta

The true impact of inflammation


The true impact of inflammation


Area Tematica : cataratta

What surgeons and patients gain from a combined premium cataract suite


What surgeons and patients gain from a combined premium cataract suite


Area Tematica : cataratta

Blue light filtering IOLs: I’m a believer


Blue light filtering IOLs: I’m a believer


Area Tematica : cataratta
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