Results 41 to 50 of about 100,316 (248)

Optical coherence tomography angiography

Kerala Journal of Ophthalmology, 2016
Optical coherence tomography angiography (OCTA) is a non-invasive angiography type without a contrast agent, which provides a detailed assessment of the retinal and choroidal vasculature and visualization of blood flow by detecting motions of ...
Remya Mareen Paulose, Jay Chhablani
doaj   +1 more source

Investigation of Light Parameters on Image Quality and Optical Coherence Tomography

International Journal of Optics, 2021
In this work, image quality and optical coherence tomography were studied. The results of the study show that there is a very significant difference between ultrasound and optical coherence tomography to produce an image with a different wave.
Boka Fikadu, Bulcha Bekele, Leta Tesfaye Jule, Anatol Degefa, N. Nagaprasad, Krishnaraj Ramaswamy   +5 more
doaj   +1 more source

UiO‐66 metal–organic frameworks in biomedicine: From structural tunability to bioimaging, photodiagnostics, and photodynamic cancer therapy

FEBS Open Bio, EarlyView.
UiO‐66(Zr) metal–organic frameworks are chemically stable, biocompatible, and highly tunable nanomaterials. Their modular structure enables controlled drug delivery, multimodal bioimaging, and light‐activated photodynamic therapy, supporting integrated diagnostic and therapeutic (theranostic) applications in cancer and biomedical research.
Veronika Huntošová, Grigorii Rakhalskii, Miroslav Almáši   +2 more
wiley   +1 more source

Optical Coherence Tomography Angiography

Southeastern European Medical Journal, 2019
Optical coherence tomography angiography (OCT-A) is a new non-invasive technology for imaging of retinal and choroidal vasculature of the macular area with resolution comparable to histological sections.
Dunja Bajtl, Mirjana Bjeloš, Mladen Bušić, Benedict Rak, Ana Križanović, Biljana Kuzmanović Elabjer   +5 more
doaj   +1 more source

Line Field Optical Coherence Tomography

Photonics, 2022
The line field (LF) design choice for the lateral image formation mechanism (lateral format) has historically been a fraction of the whole optical coherence tomography (OCT) field.
Samuel Lawman, Zijian Zhang, Yao-Chun Shen, Yalin Zheng   +3 more
doaj   +1 more source

Diffusion Spectrum Imaging Maps Early Axonal Loss and a Unique Progressive Signal in Neuronal Intranuclear Inclusion Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To delineate specific in vivo white matter pathology in neuronal intranuclear inclusion disease (NIID) using diffusion spectrum imaging (DSI) and define its clinical relevance. Methods DSI was performed on 42 NIID patients and 38 matched controls.
Kaiyan Jiang, Yixiu Pei, Xiaobao Hu, Ying Xiong, Fang Wang, Yanyan Yu, Min Zhu, Dandan Tan, Meihong Zhou, Daojun Hong, Fuqing Zhou   +10 more
wiley   +1 more source

Quantitative analysis of optical coherence tomography angiography metrics in diabetic retinopathy

Therapeutic Advances in Ophthalmology, 2020
Purpose: To evaluate the correlation of the visual acuity and diabetic retinopathy stage using optical coherence tomography and optical coherence tomography angiography metrics. Methods: In this prospective study, optical coherence tomography and optical
Hamid Safi, Pasha Anvari, Dariush Naseri, Hamideh Shenazandi, Pegah Kazemi, Pirouzeh Farsi, Sanaz Jafari, Ahad Sedaghat, Mehdi Yaseri, Khalil Ghasemi Falavarjani   +9 more
doaj   +1 more source

Polarization Maintaining Fiber-Based Depth Encoded Cross-Polarized Optical Coherence Tomography

IEEE Access, 2022
Cross-polarized optical coherence tomography offers improved imaging contrast of birefringent tissue, such as collagen organization, compared to conventional optical coherence tomography systems.
Maria N. Romodina, Katharina Blessing, Kanwarpal Singh   +2 more
doaj   +1 more source

Combined multi-modal photoacoustic tomography, optical coherence tomography (OCT) and OCT angiography system with an articulated probe for in vivo human skin structure and vasculature imaging

Biomedical Optics Express, 2016
Cutaneous blood flow accounts for approximately 5% of cardiac output in human and plays a key role in a number of a physiological and pathological processes. We show for the first time a multi-modal photoacoustic tomography (PAT), optical coherence tomography (OCT) and OCT angiography system with an articulated probe to extract human cutaneous ...
Mengyang, Liu, Zhe, Chen, Behrooz, Zabihian, Christoph, Sinz, Edward, Zhang, Paul C, Beard, Laurin, Ginner, Erich, Hoover, Micheal P, Minneman, Rainer A, Leitgeb, Harald, Kittler, Wolfgang, Drexler   +11 more
openaire   +2 more sources

Value of MRI Outcomes for Preventive and Early‐Stage Trials in Spinocerebellar Ataxias 1 and 3

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To examine the value of MRI outcomes as endpoints for preventive and early‐stage trials of two polyglutamine spinocerebellar ataxias (SCAs). Methods A cohort of 100 participants (23 SCA1, 63 SCA3, median Scale for the Assessment and Rating of Ataxia (SARA) score = 5, 42% preataxic, and 14 gene‐negative controls) was scanned at 3T up ...
Thiago J. R. Rezende, Emilien Petit, Young Woo Park, Sophie Tezenas du Montcel, James M. Joers, Jonathan M. DuBois, H. Moore Arnold, Michal Povazan, Ipek Özdemir, Guita Banan, Romain Valabregue, Philipp Ehses, Jennifer Faber, Chiadi U. Onyike, Peter B. Barker, Jeremy D. Schmahmann, Eva‐Maria Ratai, Sub H. Subramony, Thomas H. Mareci, Khalaf O. Bushara, Henry Paulson, Thomas Klockgether, Alexandra Durr, Tetsuo Ashizawa, Christophe Lenglet, Gülin Öz, READISCA Investigators   +26 more
wiley   +1 more source