نتایج جستجو برای: optical tomography

تعداد نتایج: 426255  

2017
Wen-Chuan Kuo Meng-Chun Kao Mei-Yung Tsou Chien-Kun Ting

BACKGROUND No reports exist concerning in vivo optical coherence tomography visualization of the epidural space and the blood patch process in the epidural space. In this study, we produced real-time two-dimensional and reconstructed three-dimensional images of the epidural space by using optical coherence tomography in a porcine model. We also aimed to produce three-dimensional optical coheren...

Masoud Aghsaei Fard,

Assessment of the peripapillary nerve fiber layer and macular thickness can be determined in ophthalmology using optical coherence tomography (OCT). Decreased nerve fiber layer thickness and macular ganglion cell thickness in optic nerve ischemia have been correlated with visual field loss. OCT allows deep optic nerve head evaluation which helps understand pathophysiology of diseases.  Furtherm...

Journal: :Revista espanola de cardiologia 2015
Jung-Sun Kim Dong-Ho Shin Byeong-Keuk Kim Young-Guk Ko Donghoon Choi Yangsoo Jang Myeong-Ki Hong

INTRODUCTION AND OBJECTIVES The clinical benefits of optical coherence tomography-guided percutaneous coronary intervention are unclear. Therefore, in this study we sought to evaluate the impact of optical coherence tomography guidance on stent strut coverage following drug-eluting stent implantation. METHODS A total of 101 patients in 105 lesions were randomly assigned to receive percutaneou...

Journal: :journal of current ophthalmology 0
محمد ریاضی اصفهانی mohammad riazi esfahani الینا غفاری elina ghaffari زهرا اعلمی هرندی zahra aalami harandi فدرا حاجی زاده fedra hajizadeh

purpose : to determine the optical coherence tomography (oct) findings in eyes with idiopathic perifoveal retinal telangiectasis (ipt) methods : this study is a retrospective review of patient charts, oct, fundus photography, related to 16 eyes (11 patients). results : the most consistent finding of idiopathic perifoveal telangiectasia seen in 93.7% of eyes (15 eyes) on oct was the presence of ...

Journal: :Ophthalmic surgery, lasers & imaging : the official journal of the International Society for Imaging in the Eye 2003
David Huang Mark Shure

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 ...

Journal: :American journal of ophthalmology 1995
M R Hee C A Puliafito C Wong E Reichel J S Duker J S Schuman E A Swanson J G Fujimoto

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, ...

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