1. University College London

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    1. Mentioned In 231 Articles

    2. The Use of Optical Coherence Tomography as a Diagnostic Tool for Dental Caries (Thesis)

      The Use of Optical Coherence Tomography as a Diagnostic Tool for Dental Caries (Thesis)
      Dental caries is one of the most common human diseases, 60-90% of school children worldwide have dental cavities. Severity can vary, from early demineralisation, which preventive measures can improve, to cavitation, leading to fillings. Different diagnostic tools are available, such as clinical examination, radiographic investigation and Enhanced Visual examination/International Caries Detection and Assessment System (ICDAS). To date, there is no universal diagnostic tool that can be used to detect ...
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    3. Optical coherence tomography in the assessment of cutaneous cancer margins of the face: an immediate ex vivo study

      Optical coherence tomography in the assessment of cutaneous cancer margins of the face: an immediate ex vivo study
      Background The assessment of cutaneous cancer margins intra-operatively or in the immediate postoperative phase can guide the operator into achieving clearer margins. Achieving a clear (tumour-free) margins following surgery is an essential factor that can reduce morbidity and disfigurement. The aim of present study was to determine the accuracy of optical coherence tomography in assessing cutaneous cancer margins of the face. Materials and Methods The excised tissue specimens that were ...
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    4. The Relationship Between Ambient Atmospheric Fine Particulate Matter (PM2.5) and Glaucoma in a Large Community Cohort

      The Relationship Between Ambient Atmospheric Fine Particulate Matter (PM2.5) and Glaucoma in a Large Community Cohort
      Purpose : Glaucoma is more common in urban populations than in others. Ninety percent of the world's population are exposed to air pollution above World Health Organization (WHO) recommended limits. Few studies have examined the association between air pollution and glaucoma. Methods : Questionnaire data, ophthalmic measures, and ambient residential area air quality data for 111,370 UK Biobank participants were analyzed. Particulate matter with an aerodynamic diameter 2.5 m ...
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    5. Subclinical Macular Changes And Disease Laterality In Pediatric Coats Disease Determined By Quantitative Optical Coherence Tomography Angiography

      Subclinical Macular Changes And Disease Laterality In Pediatric Coats Disease Determined By Quantitative Optical Coherence Tomography Angiography
      Purpose: To determine vascular change at the macula in both eyes in unilateral pediatric Coats disease using optical coherence tomography angiography. Methods: Retrospective case-series. Thirteen eyes of pediatric patients with a diagnosis of unilateral Coats disease of various stages were compared with 13 fellow eyes. Optical coherence tomography angiography images were acquired using the RTVue XR Avanti. Scans were analyzed with novel projection artifact removal software and improved segmentation. Vascular ...
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    6. Efficacy and Reproducibility of Attenuation-Compensated Optical Coherence Tomography for Assessing External Elastic Membrane Border and Plaque Composition in Native and Stented Segments ― An In Vivo and Histology-Based Study ―

      Efficacy and Reproducibility of Attenuation-Compensated Optical Coherence Tomography for Assessing External Elastic Membrane Border and Plaque Composition in Native and Stented Segments ― An In Vivo and Histology-Based Study ―
      Background: Attenuation-compensated (AC) technique was recently introduced to improve the plaque characterization of optical coherence tomography (OCT). Histological validation demonstrated promising results but the efficacy and reproducibility of this technique for assessing in-vivo tissue composition remains unclear. Methods and Results: OCT images portraying native (n=200) and stented (n=200) segments and 31 histological cross-sections were analyzed. AC-OCT appeared superior to conventional (C)-OCT in detecting the external elastic lamina ...
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    7. Correspondence: Trends in Retina Specialist Imaging Utilization From 2012 to 2016 in the United States Medicare Fee-for-Service Population

      Correspondence: Trends in Retina Specialist Imaging Utilization From 2012 to 2016 in the United States Medicare Fee-for-Service Population
      We read with great interest the recent report by Wibbelsman and associates titled Trends in Retina Specialist Imaging Utilization from 2012 to 2016 in the USA Medicare fee-for-service Population.1 Despite the prominent role of optical coherence tomography (OCT) in ophthalmic practice, there is a surprising scarcity of published literature on the frequency of its application.
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    8. Nailfold capillaroscopy with a commercially available optical coherence tomography angiography for ophthalmic use

      Nailfold capillaroscopy with a commercially available optical coherence tomography angiography for ophthalmic use
      Visualising capillaries in the retina and the nailfold provides an opportunity to improve our understanding of various systemic disorders including cardiovascular, metabolic, rheumatic, and eye diseases.15 Traditional nailfold capillaroscopy has been primarily utilised, during the last 40 years, to study the vascular components of connective tissue diseases.6,7 It has been established as a safe and noninvasive diagnostic tool that allows high magnification view of skin microcirculation as ...
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    9. Comparison of angle-to-angle distance using three devices in normal eyes

      Comparison of angle-to-angle distance using three devices in normal eyes
      Purpose To compare the angle-to-angle (ATA) distance, and the repeatability and the reproducibility of these measurements among the three devices. Methods We performed the ATA measurements in 26 healthy subjects using anterior segment optical coherence tomography (CASIA2, Tomey, Japan), the Scheimpflug camera (Pentacam HR, Oculus, Wetzlar, Germany), and the combined Placido-ring corneal topography and Scheimpflug camera (TMS-5, Tomey). We also compared the repeatability and the reproducibility of the ATA measurements ...
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    10. Pearse Keane Q&A: how open access AI is bringing ophthalmology into focus

      Pearse Keane Q&A: how open access AI is bringing ophthalmology into focus
      Since 2016, Moorfields Eye Hospital in London has been working with DeepMind, one of the worlds leading artificial intelligence companies. Through the partnership, researchers hope to use over one million anonymised retinal images to train artificial intelligence (AI) in the automated diagnosis of optical coherence tomography (OCT) images. OCT images are extremely complex and can take clinicians a long time to analyse, which can impact how quickly patients can receive ...
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    11. Precision Microfabrication of Optical Probes for Intravascular Diagnostics (Thesis)

      Precision Microfabrication of Optical Probes for Intravascular Diagnostics (Thesis)
      This thesis details a collection of design, optimisation, fabrication and characterisation work to form fiber-optic probes and optical phantom devices for intravascular diagnostics in minimally invasive surgery (MIS). Optically generated ultrasound is an emerging technique to create broadband high frequency ultrasound via the photoacoustic effect. In the first segment of this thesis, the development of a novel miniature fiber-optic ultrasound transmitter is detailed. A morphologically controlled coating was formed at ...
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    12. Objective evaluation of proliferative diabetic retinopathy using optical coherence tomography

      Objective evaluation of proliferative diabetic retinopathy using optical coherence tomography
      Purpose To present the routine use of optical coherence tomography (OCT) and OCT angiography (OCTA) for the objective diagnosis and monitoring of proliferative diabetic retinopathy (PDR). Design Retrospective observational case series. Subjects Patients with diabetic retinopathy imaged using a standardized PDR-protocol Methods Patients routinely imaged with a standardized PDR-protocol between March 2017 and January 2019 were included. This included a 12x9 mm structural OCT volume centered on the macula and ...
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    13. Epithelial tissue thickness improves optical coherence tomography’s ability in detecting oral cancer

      Epithelial tissue thickness improves optical coherence tomography’s ability in detecting oral cancer
      Background OCT is a non-invasive imaging technique that enables the measurement of epithelial thickness and architectural changes, which can help in the diagnosis of pre-cancerous and cancerous lesions. The purpose of the study was to assess whether epithelial tissue thickness improves optical coherence tomographys ability in detecting oral cancer. Patients and Methods Surgically resected oral margins from 60 patients diagnosed with oral squamous cell carcinoma were subjected to OCT. Three ...
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    14. 1-15 of 231 1 2 3 4 ... 14 15 16 »
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  2. About University College London

    University College London

    University College London is the oldest multi-faculty constituent college of the University of London and is one of the two original founding colleges. With 21,800 staff and students, UCL is one of the largest colleges of the University and is larger than most other universities in the United Kingdom. The Department of Medical Physics and Bioengineering has been for many years a joint department of University College London (UCL) and the UCL Hospitals Trust (UCLH).