Under suitable technical and clinical conditions, remote interactive fiber-optic NPL can be used to evaluate a range of commonly occurring pathologies with a high degree of reliability. A clinical protocol appropriate for interactive and store-and-forward fiber-optic NPL was proposed for further evaluation. Additional applications of telemedicine in otolaryngology were outlined, including otoscopy, intra-oral examination, and evaluation of external facial pathology. We envisage tele-otolaryngology taking place in a variety of ways: Interactions between rural-based PCPs and specialists (routine evaluation of hoarseness, dysphagia), using store-and-forward techniques. Consults from emergency medicine physicians at a general service hospital to a specialist (laryngeal trauma, acute peritonsillar abscess, TM perforations) using interactive means. Case discussions between specialist and sub-specialist using a combination of store-and-forward and interactive technologies. Potentially, there are at least three significant benefits from widespread acceptance of telemedicine in the field of otolaryngology, or indeed in any of the medical specialties: Saved lives and reduced medical costs due to early detection of serious pathology (in this case, head and neck cancers). Reduced unnecessary referrals to specialists, and consequent savings to the patient and health-care insurer, accompanied by more efficient usage of specialist time. Enhanced level of medical education and interaction, as the link between the referring and consulting physician is more immediate and direct [27]. For these reasons, combined with the high number of visits at the primary-care level related to issues in otolaryngology-head and neck surgery, tele-otolaryngology is poised to be a leading telemedicine application within the next few years.
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http://dx.doi.org/10.1109/51.775489 | DOI Listing |
Sci Rep
December 2024
National Physical Laboratory, Teddington, UK.
We present the first controlled-environment measurements of the optical path-length change response of telecommunication submarine cables to active seismic and acoustic waves. We perform the comparison among integrated (optical interferometry) and distributed (distributed acoustic sensing, DAS) fibre measurements and ground truth data acquired by 58 geophones, 20 three-axis seismometers and 7 microphones. The comparison between different seismic acquisition methods is an essential step towards full validation and calibration of the data acquired using novel cable-based sensing techniques.
View Article and Find Full Text PDFEar Nose Throat J
September 2021
Department of Otolaryngology-6567Children's Hospital of Philadelphia, Philadelphia, PA, USA.
Introduction: Telemedicine is an increasingly prevalent component of medical practice. In otolaryngology, there is the potential for telemedicine services to be performed in conjunction with device use, such as with a nasolaryngoscope. This study evaluates the reliability of remote examinations of the upper airway through an iPhone recording using a coupling device attached to a nasopharyngolaryngoscope (NPL).
View Article and Find Full Text PDFJ Am Soc Mass Spectrom
August 2016
National Centre of Excellence in Mass Spectrometry Imaging (NiCE-MSI), National Physical Laboratory (NPL), Teddington, TW11 0LW, UK.
Matrix assisted laser desorption ionization mass spectrometry imaging (MALDI MSI) is increasingly widely used to provide information regarding molecular location within tissue samples. The nature of the photon distribution within the irradiated region, the laser beam profile, and fluence, will significantly affect the form and abundance of the detected ions. Previous studies into these phenomena have focused on circular-core optic fibers or Gaussian beam profiles irradiating dried droplet preparations, where peptides were employed as the analyte of interest.
View Article and Find Full Text PDFAppl Radiat Isot
September 2012
National Physical Laboratory, Hampton Road, Teddington, Middlesex TW11 0LW, UK.
Pulses from detectors used for radioactivity measurement can vary in size by several orders of magnitude. Large pulses will lead to saturation at the preamplifier output and extension of the pulse length. As a consequence, the dead time of the system increases and pulses may be lost.
View Article and Find Full Text PDFOpt Express
January 2012
National Physical Laboratory, Teddington, UK.
We demonstrate that the structure of an optical frequency comb transferred over several km of fiber can be preserved at a level compatible with the best optical frequency references currently available. Using an optical phase detection technique we measure the noise introduced by the fiber link and suppress it by stabilizing the optical path length. The measured fractional frequency stability of the transferred optical modes is 2 × 10(-18) at a few thousand seconds and the mode spacing stability after optical-microwave conversion is better than 4 × 10(-17) over the same time scale.
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