1. Articles mentioning both University of Western Australia and Rodney W. Kirk

    1-24 of 24
    1. Two-photon polymerisation 3D printed freeform micro-optics for optical coherence tomography fibre probes

      Two-photon polymerisation 3D printed freeform micro-optics for optical coherence tomography fibre probes
      Miniaturised optical coherence tomography (OCT) fibre-optic probes have enabled high-resolution cross-sectional imaging deep within the body. However, existing OCT fibre-optic probe fabrication methods cannot generate miniaturised freeform optics, which limits our ability to fabricate probes with both complex optical function and dimensions comparable to the optical fibre diameter. Recently, major advances in two-photon direct laser writing have enabled 3D printing of arbitrary three-dimensional micro/nanostructures with a surface roughness acceptable ...
      Read Full Article
    2. Flexible needle with integrated optical coherence tomography probe for imaging during transbronchial tissue aspiration

      Flexible needle with integrated optical coherence tomography probe for imaging during transbronchial tissue aspiration
      Transbronchial needle aspiration (TBNA) of small lesions or lymph nodes in the lung may result in nondiagnostic tissue samples. We demonstrate the integration of an optical coherence tomography (OCT) probe into a 19-gauge flexible needle for lung tissue aspiration. This probe allows simultaneous visualization and aspiration of the tissue. By eliminating the need for insertion and withdrawal of a separate imaging probe, this integrated design minimizes the risk of dislodging ...
      Read Full Article
    3. Wide-field optical coherence micro-elastography for intraoperative assessment of human breast cancer margins

      Wide-field optical coherence micro-elastography for intraoperative assessment of human breast cancer margins
      Incomplete excision of malignant tissue is a major issue in breast-conserving surgery, with typically 20 - 30% of cases requiring a second surgical procedure arising from postoperative detection of an involved margin. We report advances in the development of a new intraoperative tool, optical coherence micro-elastography, for the assessment of tumor margins on the micro-scale. We demonstrate an important step by conducting whole specimen imaging in intraoperative time frames with a ...
      Read Full Article
    4. Promising New Imaging Tool Allows Surgeons to Detect Malignant Tissue During Breast-Conserving Surgery for Breast Cancer

      Promising New Imaging Tool Allows Surgeons to Detect Malignant Tissue During Breast-Conserving Surgery for Breast Cancer
      ...eons tell us about, they’re not going to make an impact.” Paper: Wes M. Allen, Lixin Chin, Philip Wijesinghe, Rodney W. Kirk, Bruce Latham, David D. Sampson, Christobel M. Saunders, and Brendan F. Kennedy, "Wide-field op...
      Read Full Article
    5. Optical coherence tomography in the assessment of acute changes in cutaneous vascular diameter induced by heat stress

      Optical coherence tomography in the assessment of acute changes in cutaneous vascular diameter induced by heat stress
      There are limited imaging technologies available that can accurately assess or provide surrogate markers of the in vivo cutaneous microvessel network in humans. In this study, we establish the use of optical coherence tomography (OCT) as a novel imaging technique to assess acute changes in cutaneous microvessel area density and diameter in humans. OCT speckle decorrelation images of the skin on the ventral side of the forearm up to a ...
      Read Full Article
    6. Deep tissue volume imaging of birefringence through fibre-optic needle probes for the delineation of breast tumour

      Deep tissue volume imaging of birefringence through fibre-optic needle probes for the delineation of breast tumour
      Identifying tumour margins during breast-conserving surgeries is a persistent challenge. We have previously developed miniature needle probes that could enable intraoperative volume imaging with optical coherence tomography. In many situations, however, scattering contrast alone is insufficient to clearly identify and delineate malignant regions. Additional polarization-sensitive measurements provide the means to assess birefringence, which is elevated in oriented collagen fibres and may offer an intrinsic biomarker to differentiate tumour from benign ...
      Read Full Article
    7. Molecular imaging needles: dual-modality optical coherence tomography and fluorescence imaging of labeled antibodies deep in tissue

      Molecular imaging needles: dual-modality optical coherence tomography and fluorescence imaging of labeled antibodies deep in tissue
      ...iversity of Western Australia, Crawley, Australia ^4Centre for Microscopy, Characterisation & Analysis, The University of Western Australia, Crawley, Australia ^*Corresponding author: lscolaro@graduate.uwa.edu.au B...
      Read Full Article
    8. Near video-rate optical coherence elastography by acceleration with a graphics processing unit

      Near video-rate optical coherence elastography by acceleration with a graphics processing unit
      We present a graphics processing unit (GPU)- accelerated optical coherence elastography (OCE) system capable of generating strain images (elastograms) of soft tissue at near video-rates. The system implements phase-sensitive compression OCE using a pipeline of GPU kernel functions to enable a highly parallel implementation of OCE processing using the OpenCL framework. Developed on a commercial-grade GPU and desktop computer, the system achieves a processing rate of 21 elastograms per second ...
      Read Full Article
    9. Imaging deep skeletal muscle structure using a high-sensitivity ultrathin side-viewing optical coherence tomography needle probe

      Imaging deep skeletal muscle structure using a high-sensitivity ultrathin side-viewing optical coherence tomography needle probe
      We have developed an extremely miniaturized optical coherence tomography (OCT) needle probe (outer diameter 310 m) with high sensitivity (108 dB) to enable minimally invasive imaging of cellular structure deep within skeletal muscle. Three-dimensional volumetric images were acquired from ex vivo mouse tissue, examining both healthy and pathological dystrophic muscle. Individual myofibers were visualized as striations in the images. Degradation of cellular structure in necrotic regions was seen as a ...
      Read Full Article
    10. Automated quantification of lung structures from optical coherence tomography images

      Automated quantification of lung structures from optical coherence tomography images
      Characterization of the size of lung structures can aid in the assessment of a range of respiratory diseases. In this paper, we present a fully automated segmentation and quantification algorithm for the delineation of large numbers of lung structures in optical coherence tomography images, and the characterization of their size using the stereological measure of median chord length. We demonstrate this algorithm on scans acquired with OCT needle probes in ...
      Read Full Article
    11. Ultrasound-Guided Optical Coherence Tomography Needle Probe for the Assessment of Breast Cancer Tumor Margins

      Ultrasound-Guided Optical Coherence Tomography Needle Probe for the Assessment of Breast Cancer Tumor Margins
      ...ry Medicine, University of Western Australia, Crawley, Western Australia, Australia. 6. ^6 School of Surgery, University of Western Australia, Crawley, Western Australia, Australia. 7. ^7 Department of Surgery, Sir Charl...
      Read Full Article
    12. Feature Of The Week 7/8/12: University of Western Australia Demostrates Freehand Lateral Scanning of OCT Needle Probes

      Feature Of The Week 7/8/12: University of Western Australia Demostrates Freehand Lateral Scanning of OCT Needle Probes
      .... For more information see recent Article. Courtesy of Boon Yeo from the University of Western Australia. The University of Western Australia has been very active in advancing the field of OCT needle probes (e.g. search ...
      Read Full Article
    13. Enabling freehand lateral scanning of optical coherence tomography needle probes with a magnetic tracking system

      Enabling freehand lateral scanning of optical coherence tomography needle probes with a magnetic tracking system
      We present a high-resolution three-dimensional position tracking method that allows an optical coherence tomography (OCT) needle probe to be scanned laterally by hand, providing the high degree of flexibility and freedom required in clinical usage. The method is based on a magnetic tracking system, which is augmented by cross-correlation-based resampling and a two-stage moving window average algorithm to improve upon the tracker's limited intrinsic spatial resolution, achieving 18 m ...
      Read Full Article
    14. Feature Of The Week 12/11/11: University of Western Australia Demonstrates Ultrathin Side-Viewing Needle Probe for Optical Coherence Tomography

      Feature Of The Week 12/11/11: University of Western Australia Demonstrates Ultrathin Side-Viewing Needle Probe for Optical Coherence Tomography
      ...nce tomography," Optics Letters, vol. 25, pp. 1520-1522, 2000.[2] R. A. McLaughlin, B. C. Quirk, A. Curatolo, R. W. Kirk, L. Scolaro, D. Lorenser, P. D. Robbins, B. A. Wood, C. M. Saunders, and D. D. Sampson, "Imaging of...
      Read Full Article
    15. Imaging true 3D endoscopic anatomy by incorporating magnetic tracking with optical coherence tomography: proof-of-principle for airways

      Imaging true 3D endoscopic anatomy by incorporating magnetic tracking with optical coherence tomography: proof-of-principle for airways
      ...erence tomography ToC Category: Category Pending Citation Brandon Lau, Robert A. McLaughlin, Andrea Curatolo, Rodney W. Kirk, Derek K. Gerstmann, and David D. Sampson, "Imaging true 3D endoscopic anatomy by incorporating...
      Read Full Article
    16. 1-24 of 24
  1. Categories

    1. Applications:

      Art, Cardiology, Dentistry, Dermatology, Developmental Biology, Gastroenterology, Gynecology, Microscopy, NDE/NDT, Neurology, Oncology, Ophthalmology, Other Non-Medical, Otolaryngology, Pulmonology, Urology
    2. Business News:

      Acquisition, Clinical Trials, Funding, Other Business News, Partnership, Patents
    3. Technology:

      Broadband Sources, Probes, Tunable Sources
    4. Miscellaneous:

      Jobs & Studentships, Student Theses, Textbooks
  2. Organizations in the News

    1. (2 articles) Polytechnique Montreal
    2. (1 articles) Medical University of Vienna
    3. (1 articles) Harvard University
    4. (1 articles) Sir Charles Gairdner Hospital
    5. (1 articles) Massachusetts General Hospital
    6. (1 articles) University of Auckland
  3. People in the News

    1. (24 articles) David D. Sampson
    2. (21 articles) Robert A. McLaughlin
    3. (12 articles) Dirk Lorenser
    4. (6 articles) Andrea Curatolo
    5. (6 articles) Xiaojie Yang
    6. (4 articles) Brendan F. Kennedy
    7. (4 articles) Peter B. Noble
    8. (4 articles) Loretta Scolaro
    9. (3 articles) Boon Y. Yeo
    10. (2 articles) Jiawen Li
    11. (2 articles) Caroline Boudoux
    12. (1 articles) Eric A. Swanson