Articles that mention University of Western Australia -Optical Coherence Tomography News

University of Western Australia

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1. Mentioned In 175 Articles
2. Posterior Choroidal Stroma Reduces Accuracy of Automated Segmentation of Outer Choroidal Boundary in Swept Source Optical Coherence Tomography
  
  Explore IOVS Journal Sep 8 2018 Ophthalmology
  
  Purpose : To determine the influence of choroidal boundary morphology on the accuracy of automated measurements of subfoveal choroidal thickness (SFCT) in swept source optical coherence tomography (SSOCT). Methods : A retrospective image analysis of foveal-centered horizontal line scans from normal and diseased eyes using the Topcon DRI OCT-1 Atlantis SSOCT was conducted. Subfoveal choroid-scleral junction (CSJ) and retina-choroidal junction (RCJ) morphologies were graded by two observers. Automated SFCT (A-SFCT) was compared ...
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  Mentions: Topcon Medical Systems University of Western Australia University of Sydney
3. Imaging Of Pigment Epithelial Detachments With Optical Coherence Tomography Angiography
  
  Explore LWW Online Aug 22 2018 Ophthalmology
  
  Purpose: To investigate the utility of optical coherence tomography angiography (OCTA) for detecting pathologic vascularization within pigment epithelial detachments (PEDs). Methods: This was a retrospective, cross-sectional, consecutive case series. Multimodal imaging (structural OCT, fluorescein, and indocyanine green angiography) was used as the gold standard to classify PEDs as nonvascularized or vascularized. Optical coherence tomography angiography imaging of the PED was subsequently and independently evaluated to classify PEDs as vascularized or ...
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  Mentions: Singapore Eye Research Institute LuEsther T. Mertz Retinal Research Center University of Western Australia
4. Postdoc Position in Biomedical Optics and Photonics at University of Western Australia
  
  Explore Optical Coherence Tomography News Aug 1 2018 Jobs & Studentships
  
  ...: see http://www.obel.ee.uwa.edu.au or email Prof David Sampson David.Sampson@uwa.edu.au. About Perth The University of Western Australia occupies a picturesque setting by the Swan River five minutes from downtown Pe...
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  Mentions: David D. Sampson University of Western Australia
5. Optical palpation for the visualization of tumor in human breast tissue
  
  Explore Wiley Online Library Jul 28 2018 Oncology
  
  Accurate and effective removal of tumor in one operation is an important goal of breast‐conserving surgery. However, it is not always achieved. Surgeons often utilize manual palpation to assess the surgical margin and/or the breast cavity. Manual palpation, however, is subjective and has relatively low‐resolution. Here, we investigate a tactile imaging technique, optical palpation, for the visualization of tumor. Optical palpation generates maps of the stress at ...
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  Mentions: University of Western Australia Brendan F. Kennedy
6. Label‐free volumetric imaging of conjunctival collecting lymphatics ex vivo by optical coherence tomography lymphangiography
  
  Explore Wiley Online Library Jun 19 2018
  
  We employ optical coherence tomography (OCT) and optical coherence microscopy (OCM) to study conjunctival lymphatics in porcine eyes ex vivo . This study is a precursor to the development of in vivo imaging of the collecting lymphatics for potentially guiding and monitoring glaucoma filtration surgery. OCT scans at 1300 nm and higher‐resolution OCM scans at 785 nm reveal the lymphatic vessels via their optical transparency. Equivalent signal characteristics are also ...
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  Mentions: David D. Sampson University of Western Australia Qiang Wang
7. Photonic force optical coherence elastography for three-dimensional mechanical microscopy
  
  Explore Nature Publishing Group Jun 15 2018
  
  Optical tweezers are an invaluable tool for non-contact trapping and micro-manipulation, but their ability to facilitate high-throughput volumetric microrheology of biological samples for mechanobiology research is limited by the precise alignment associated with the excitation and detection of individual bead oscillations. In contrast, radiation pressure from a low-numerical aperture optical beam can apply transversely localized force over an extended depth range. Here we present photonic force optical coherence elastography (PF-OCE ...
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  Mentions: Cornell University University of Western Australia Steven G. Adie
8. Realistic simulation and experiment reveals the importance of scatterer microstructure in optical coherence tomography image formation
  
  Explore OSA | OSA Publishing Jun 15 2018
  
  Realistic simulation of image formation in optical coherence tomography, based on Maxwells equations, has recently been demonstrated for sample volumes of practical significance. Yet, there remains a limitation whereby reducing the size of cells used to construct a computational grid, thus allowing for a more realistic representation of scatterer microstructure, necessarily reduces the overall sample size that can be modelled. This is a significant problem since, as is well known ...
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  Mentions: University College London David D. Sampson Nicolaus Copernicus University
9. Optical Coherence Tomography of the Tympanic Membrane and Middle Ear: A Review
  
  Explore SAGE Journals May 26 2018 Otolaryngology
  
  Objective To evaluate the recent developments in optical coherence tomography (OCT) for tympanic membrane (TM) and middle ear (ME) imaging and to identify what further development is required for the technology to be integrated into common clinical use. Data Sources PubMed, Embase, Google Scholar, Scopus, and Web of Science. Review Methods A comprehensive literature search was performed for English language articles published from January 1966 to January 2018 with the ...
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  Mentions: University of Western Australia Brendan F. Kennedy Ruchire Eranga Wijesinghe
10. Wide-field quantitative micro-elastography of human breast tissue
  
  Explore OSA | OSA Publishing Mar 21 2018
  
  Currently, 20-30% of patients undergoing breast-conserving surgery require a second surgery due to insufficient surgical margins in the initial procedure. We have developed a wide-field quantitative micro-elastography system for the assessment of tumor margins. In this technique, we map tissue elasticity over a field-of-view of ~46 46 mm. We performed wide-field quantitative micro-elastography on thirteen specimens of freshly excised tissue acquired from patients undergoing a mastectomy. We present wide-field optical ...
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  Mentions: University of Western Australia Andrea Curatolo Brendan F. Kennedy
11. A study of the effects of supine position and fluid intake on normal airway geometry using anatomical optical coherence tomography
  
  Explore SPIE Digital Library Mar 20 2018 Pulmonology
  
  Airway inhalation injuries are present in up to a third of all major burns patients and are the leading cause of mortality among this population. Understanding the mechanism of injury could minimise oedema (swelling) and airway damage. In this study, we present an anatomical OCT (aOCT) imaging system, based on a 1300-nm wavelength, high-speed, long-range MEMS-VCSEL swept laser source, for real-time volumetric imaging and assessment of inhalation injuries in airways ...
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  Mentions: David D. Sampson University of Western Australia Robert A. McLaughlin
12. Quantitative comparisons between optical coherence tomography angiography and matched histology in the human eye
  
  Explore ScienceDirect Feb 17 2018 Ophthalmology
  
  The aim was to quantitatively compare retinal vascular detail as seen on optical coherence tomography angiography (OCTA) and matched histology in the human eye. 13 normal human donor eyes were used. The central retinal artery was cannulated after which human packed red blood cells were perfused through the retinal vasculature. Retinal vessels were imaged using a custom-built OCTA device during red blood cell perfusion. The eye was subsequently perfused with ...
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  Mentions: University of Western Australia Marinko V. Sarunic Simon Fraser University
13. Swept source optical coherence tomography and tunable lens technology for comprehensive imaging and biometry of the whole eye
  
  Explore OSA | OSA Publishing Jan 19 2018 Ophthalmology
  
  Standard optical systems in ophthalmology are strictly dedicated either to retinal or to anterior segment imaging due to the refractive properties of the eye. We demonstrate a swept source optical coherence tomography platform with an electrically tunable lens (ETL) for versatile 3D in vivo imaging of both the eyes anterior segment and the retina. The optimized optical setup with adaptive operational states of the ETL permits focusing on the retina ...
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  Mentions: Nicolaus Copernicus University University of Western Australia Karol Karnowski
14. Label-free optical imaging technologies for rapid translation and use during intraoperative surgical and tumor margin assessment
  
  Explore SPIE Digital Library Jan 4 2018
  
  The biannual International Conference on Biophotonics was recently held on April 30 to May 1, 2017, in Fremantle, Western Australia. This continuing conference series brought together key opinion leaders in biophotonics to present their latest results and, importantly, to participate in discussions on the future of the field and what opportunities exist when we collectively work together for using biophotonics for biological discovery and medical applications. One session in this ...
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  Mentions: Stephen A. Boppart University of Illinois at Urbana-Champaign University of Western Australia
15. Photonic force optical coherence elastography for threedimensional mechanical microscopy
  
  Explore arxiv.org Jan 2 2018
  
  Optical tweezers are an invaluable tool for non-contact trapping and micro-manipulation, but their ability to facilitate high-throughput volumetric microrheology of biological samples for mechanobiology research is limited by the precise alignment associated with the excitation and detection of individual bead oscillations. In contrast, radiation pressure from a low numerical aperture optical beam can apply transversely localized force over an extended depth range. We propose photonic force optical coherence elastography (PF-OCE ...
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  Mentions: Cornell University University of Western Australia Steven G. Adie
16. Special Section Guest Editorial: Commemorating 25 Years of Optical Coherence Tomography: a Perspective on Biomedical Applications
  
  Explore SPIE Digital Library Dec 20 2017
  
  ptical coherence tomography (OCT) has become a major medical imaging technology in the time since its inception now more than 25 years ago. During this time, OCT has become very well established in ophthalmology, and this application area largely dominates the field. Next in importance and stage of development is cardiovascular medicine, also a strongly commercial technology, but at an earlier stage and a slower pace of uptake than ophthalmology ...
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  Mentions: Peter E. Andersen David D. Sampson University of Washington
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