1. University of British Columbia

    0 Comments Leave a Comment

    61-75 of 78 « 1 2 3 4 5 6 »
    1. Mentioned In 78 Articles

    2. Central Airway Compliance in Asthma: Up or Down? Good or Bad?

      Central Airway Compliance in Asthma: Up or Down? Good or Bad?
      In this issue of the Journal, Williamson and coworkers (pp. 612–619) report on the use of anatomical optical coherence tomography(OCT) to measure the luminal area of central intrathoracic airways (generations 0–5) (1). By coupling this dynamic, in vivomeasurement with simultaneously measured transpulmonary pressure, they derived area–pressure relationships of these airwaysand calculated airway compliance (Caw) and specific compliance(sCaw). They then compared these values in control subjects ...
      Read Full Article
    3. Phenotyping Airways Disease With Optical Coherence Tomography

      Phenotyping Airways Disease With Optical Coherence Tomography
      Airway diseases are a major concern around the world. However, the pace of new drug and biomarker discovery has lagged behind those of other common disorders such as cardiovascular diseases and diabetes. One major barrier in airways research has been the inability to accurately visualize large and small airway remodeling or dysplastic/neoplastic (either pre or early cancerous) changes using non or minimally invasive instruments. The advent of optical coherence ...
      Read Full Article
    4. High-speed spectral domain 
optical coherence tomography using 
non-uniform fast Fourier transform

      High-speed spectral domain 
optical coherence tomography using 
non-uniform fast Fourier transform
      The useful imaging range in spectral domain optical coherence tomography (SD-OCT) is often limited by the depth dependent sensitivity fall-off. Processing SD-OCT data with the non-uniform fast Fourier transform (NFFT) can improve the sensitivity fall-off at maximum depth by greater than 5dB concurrently with a 30 fold decrease in processing time compared to the fast Fourier transform with cubic spline interpolation method. NFFT can also improve local signal to noise ...
      Read Full Article
    5. Rapid Volumetric OCT Image Acquisition Using Compressive Sampling

      Rapid Volumetric OCT Image Acquisition Using Compressive Sampling
      Acquiring three dimensional image volumes with techniques such as Optical Coherence Tomography (OCT) relies on reconstructing the tissue layers based on reflection of light from tissue interfaces. One B-mode scan in an image is acquired by scanning and concatenating several A-mode scans, and several contiguous slices are acquired to assemble a full 3D image volume. In this work, we demonstrate how Compressive Sampling (CS) can be used to accurately reconstruct ...
      Read Full Article
    6. Fourier Domain Optical Coherence Tomography as a Noninvasive Means for In Vivo Detection of Retinal Degeneration in Xenopus laevis Tadpoles

      ...h Columbia, Canada. ^ Corresponding author: Orson L. Moritz, Department of Ophthalmology and Visual Sciences, University of British Columbia, Room 330, 2550 Willow Street, Vancouver, BC, V5Z 3N9, Canada; olmoritz{at}inte...
      Read Full Article
    7. Fourier domain optical coherence tomography (FD-OCT) as a non-invasive means for in vivo detection of retinal degeneration in Xenopus laevis tadpoles.

      ...Canada ^2 Engineering Science, Simon Fraser University, Burnaby, Canada ^3 Ophthalmology and Visual Sciences, University of British Columbia, 2550 Willow Street, Vancouver, V5Z 3N9, Canada ^ ^* To whom correspond...
      Read Full Article
    8. Quantitative Assessment of the Airway Wall Using Computed Tomography and Optical Coherence Tomography

      Ever since the site and nature of airflow obstruction in chronic obstructive pulmonary disease was described by Hogg, Thurlbeck, and Macklem, investigators have been looking for methods to noninvasively measure the airway wall dimensions. Recent advances in computed tomography technology and new computer algorithms have made it possible to visualize and measure the airway wall and lumen without the need for tissue. However, while there is great hope for computed ...
      Read Full Article
    9. Conducting polymer actuator driven catheter: overview and applications

      In this paper conducting polymer based active catheters are presented. Design considerations along with the promise and challenges associated with conducting polymer driven devices are discussed. A conducting polymer driven intravascular catheter is described briefly and its design challenges such as structural rigidity and angle of bending are studied. Then a detailed description of a polypyrrole based active catheter that is ultimately intended for in-vivo imaging applications will be presented ...
      Read Full Article
    10. Near infrared femtosecond laser ablation of urinary calculi in water

      Pulsed light emitted from a near infrared (=800nm) femtosecond laser is capable of plasma induced photodisruption of various materials. We used femtosecond laser pulses to ablate human urinary calculi. Femtosecond pulsed laser interaction with urinary calculi was investigated with various stone compositions, different incident fluences and number of applied pulses. Spectral-domain optical coherence tomography was used to image cross sections of ablation craters on the surface of urinary calculi. Our ...
      Read Full Article
    11. Imaging retinal degeneration in mice by combining Fourier domain optical coherence tomography and fluorescent scanning laser ophthalmoscopy

      Visualization of the internal structures of the retina is critical for clinical diagnosis and monitoring of pathology as well as for medical research investigating the root causes of retinal degeneration. Optical Coherence Tomography (OCT) is emerging as the preferred technique for non-contact sub-surface depth-resolved imaging of the retina. The high resolution cross sectional images acquired in vivo by OCT can be compared to histology to visually delineate the retinal layers ...
      Read Full Article
    12. In vivo imaging of the Mouse Model of X-Linked Juvenile Retinoschisis Using Fourier Domain Optical Coherence Tomography

      ...hemistry & Molecular Biology, University of British Columbia, Vancouver, Canada; Centre for Macular Research, University of British Columbia, Vancouver, Canada ^3 Engineering Science, Simon Fraser University, 8888 Univer...
      Read Full Article
    13. 61-75 of 78 « 1 2 3 4 5 6 »
  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. About University of British Columbia

    University of British Columbia

    University of British Columbia, UBC, is a Canadian public research university with campuses in Vancouver and Kelowna. UBC is rated as one of Canada’s top universities, and is usually considered one of the top 50 universities in the world.