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Items where Author is "Langford, R. M."

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Number of items: 62.

Article

Belhaj, A., Phillips, J. P., Kyriacou, P. A. and Langford, R. M. (2016). Comparison of non-invasive peripheral venous saturations with venous blood co-oximetry. Journal of Clinical Monitoring and Computing, doi: 10.1007/s10877-016-9959-9

Shafqat, K., Langford, R. M. and Kyriacou, P. A. (2015). Estimation of instantaneous venous blood saturation using the Photoplethysmograph (PPG) waveform. Physiological Measurement, 36(10), pp. 2203-2214. doi: 10.1088/0967-3334/36/10/2203

Phillips, J. P., Cibert-Goton, V., Langford, R. M. and Shortland, P. J. (2013). Perfusion assessment in rat spinal cord tissue using photoplethysmography and laser Doppler flux measurements. Journal of Biomedical Optics, 18(3), 037005. doi: 10.1117/1.JBO.18.3.037005

Phillips, J. P., Belhaj, A., Langford, R. M. and Kyriacou, P. A. (2013). Effect of respiratory-induced intensity variations on finger SpO(2) measurements in volunteers. 2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), pp. 3937-3940. doi: 10.1109/EMBC.2013.6610406

Belhaj, A., Phillips, J. P., Kyriacou, P. A. and Langford, R. M. (2013). Non-invasive optical estimation of local venous oxygen saturation. British Journal of Anaesthesia, 110(5), 877P-878P. doi: 10.1093/bja/aes490

Hickey, M., Samuels, N., Randive, N., Langford, R. M. and Kyriacou, P. A. (2012). A new fibre optic pulse oximeter probe for monitoring splanchnic organ arterial blood oxygen saturation. Computer Methods and Programs in Biomedicine, 108(3), pp. 883-888. doi: 10.1016/j.cmpb.2011.03.019

Phillips, J. P., Belhaj, A., Shafqat, K., Langford, R. M., Shelley, K. H. and Kyriacou, P. A. (2012). Modulation of finger photoplethysmographic traces during forced respiration: venous blood in motion?. 2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), pp. 3644-3647. doi: 10.1109/EMBC.2012.6346756

Shafqat, K., Kyriacou, P. A., Pal, S. K. and Langford, R. M. (2011). Instantaneous venous oxygenation estimation using the Photoplethysmograph (PPG) waveform. Journal of Physics: Conference Series, 307(1), e012018. doi: 10.1088/1742-6596/307/1/012018

Phillips, J. P., Langford, R. M., Chang, S. H., Kyriacou, P. A. and Jones, D. P. (2011). Photoplethysmographic measurements from the esophagus using a new fiber-optic reflectance sensor. Journal of Biomedical Optics (JBO), 16(7), 077005. doi: 10.1117/1.3598858

Hickey, M., Samuels, N., Randive, N., Langford, R. M. and Kyriacou, P. A. (2011). An in vivo investigation of photoplethysmographic signals and preliminary pulse oximetry estimation from the bowel using a new fiberoptic sensor. Anesthesia and Analgesia, 112(5), pp. 1104-1109. doi: 10.1213/ANE.0b013e31820f8df3

Hickey, M., Samuels, N., Randive, N., Langford, R. M. and Kyriacou, P. A. (2011). Investigation of photoplethysmographic signals and blood oxygen saturation values obtained from human splanchnic organs using a fiber optic sensor. Journal of Clinical Monitoring and Computing, 25(4), e245. doi: 10.1007/s10877-011-9302-4

Phillips, J. P., Langford, R. M., Chang, S. H., Maney, K., Kyriacou, P. A. and Jones, D. P. (2010). Cerebral Arterial Oxygen Saturation Measurements Using a Fiber-Optic Pulse Oximeter. Neurocritical Care, 13(2), pp. 278-285. doi: 10.1007/s12028-010-9349-y

Hickey, M., Samuels, N., Randive, N., Langford, R. M. and Kyriacou, P. A. (2010). Measurement of splanchnic photoplethysmographic signals using a new reflectance fiber optic sensor. Journal of Biomedical Optics, 15(2), e027012. doi: 10.1117/1.3374355

Phillips, J. P., Kyriacou, P. A., George, K. and Langford, R. M. (2010). Optical measurement of blood flow changes in spinal cord injury. Journal of Physics: Conference Series, 238(1), 012060. doi: 10.1088/1742-6596/238/1/012060

Chang, S. H., Maney, K., Phillips, J. P., Langford, R. M. and Mehta, V. (2010). A comparison of the respiratory effects of oxycodone versus morphine: a randomised, double-blind, placebo-controlled investigation. Anaesthesia, 65(10), pp. 1007-1012. doi: 10.1111/j.1365-2044.2010.06498.x

Kyriacou, P. A., Crerar-Gilbert, A., Langford, R. M. and Jones, D. P. (2009). Measurement of photoplethysmographic signals in human abdominal organs. Measurement, 42(7), pp. 1027-1031. doi: 10.1016/j.measurement.2009.03.004

Hickey, M., Kyriacou, P. A., Samuels, N., Randive, N., Chang, S. H., Maney, K. and Langford, R. M. (2009). Photoplethysmographic signals recorded from human abdominal organs using a fibreoptic probe. British Journal of Anaesthesia, 102(4), 579P-580P. doi: 10.1093/bja/aep007

Hickey, M., Samuels, N., Randive, N., Langford, R. M. and Kyriacou, P. A. (2009). In-Vivo Evaluation of a Fiber-Optic Splanchnic Photoplethysmographic Sensor during Open Laparotomy. Engineering in Medicine and Biology Society, 2009. EMBC 2009. Annual International Conference of the IEEE, pp. 1505-1508. doi: 10.1109/IEMBS.2009.5334159

Phillips, J. P., Langford, R. M., Chang, S. H., Maney, K., Kyriacou, P. A. and Jones, D. P. (2009). An oesophageal pulse oximetry system utilising a fibre-optic probe. Journal of Physics: Conference Series, 178(1), 012021. doi: 10.1088/1742-6596/178/1/012021

Phillips, J. P., Langford, R. M., Kyriacou, P. A. and Jones, D. P. (2008). Preliminary evaluation of a new fibre-optic cerebral oximetry system. Physiological Measurement, 29(12), p. 1383. doi: 10.1088/0967-3334/29/12/003

Phillips, J. P., Kyriacou, P. A., Jones, D. P., Shelley, K. H. and Langford, R. M. (2008). Pulse oximetry and photoplethysmographic waveform analysis of the esophagus and bowel. Current opinion in anesthesiology, 21(6), pp. 779-783. doi: 10.1097/ACO.0b013e328317794d

Kyriacou, P. A., Jones, D. P., Langford, R. M. and Petros, A. J. (2008). A pilot study of neonatal and pediatric esophageal pulse oximetry. Anesthesia and Analgesia, 107(3), pp. 905-908. doi: 10.1213/ane.0b013e31817e67d1

Kyriacou, P. A., Jones, D. P., Langford, R. M. and Petros, A. J. (2007). Pilot study in neonatal and pediatric oesophageal pulse oximetry. Anesthesia and Analgesia, 105(6), S106-S107. doi: 10.1213/01.ane.0000290771.60068.d5

Phillips, J. P., Jones, D. P., Kyriacou, P. A., Chang, S. H., Maney, K. and Langford, R. M. (2007). Preliminary Evaluation of a Fiber Optic Cerebral Oximetry System in Patients Undergoing Neurosurgery. Anesthesia and Analgesia, 105(6), S113-S114. doi: 10.1213/01.ane.0000290771.60068.d5

Phillips, J. P., Kyriacou, P. A., Chang, S. H., Maney, K., George, K. and Langford, R. M. (2007). Photoplethysmographic measurements from central nervous system tissue. Journal of Physics: Conference Series, 85(1), 012029. doi: 10.1088/1742-6596/85/1/012029

Shafqat, K., Jones, D. P., Langford, R. M. and Kyriacou, P. A. (2006). Filtering techniques for the removal of ventilator artefact in oesophageal pulse oximetry. Medical & Biological Engineering & Computing, 44(8), pp. 729-737. doi: 10.1007/s11517-006-0089-2

Phillips, J. P., Langford, R. M., Kyriacou, P. A. and Jones, D. P. (2006). Optical fibre catheter photoplethysmograph. Measurement & Control, 39(3), pp. 84-87. doi: 10.1177/002029400603900304

Pal, S. K., Kyriacou, P. A., Kumaran, S., Fadheel, S., Emamdee, R., Langford, R. M. and Jones, D. P. (2005). Evaluation of oesophageal reflectance pulse oximetry in major burns patients. Burns, 31(3), pp. 337-341. doi: 10.1016/j.burns.2004.10.025

Kyriacou, P. A., Powell, S. L., Jones, D. P. and Langford, R. M. (2003). Evaluation of oesophageal pulse oximetry in patients undergoing cardiothoracic surgery. Anaesthesia, 58(5), pp. 422-427. doi: 10.1046/j.1365-2044.2003.03091.x

Kyriacou, P. A., Powell, S., Langford, R. M. and Jones, D. P. (2002). Esophageal pulse oximetry utilizing reflectance photoplethysmography. IEEE Transactions on Biomedical Engineering, 49(11), pp. 1360-1368. doi: 10.1109/TBME.2002.804584

Kyriacou, P. A., Wardhaugh, A., Jones, D. P., Langford, R. M. and Petros, A. J. (2002). Investigation of photoplethysmographic signals in neonatal and paediatric patients. Journal of Intensive Care Medicine, 28, S111-S111. doi: 10.1007/s00134-002-1455-7

Kyriacou, P. A., Powell, S., Langford, R. M. and Jones, D. P. (2002). Investigation of oesophageal photoplethysmographic signals and blood oxygen saturation measurements in cardiothoracic surgery patients. Physiological Measurement, 23(3), pp. 533-546. doi: 10.1088/0967-3334/23/3/305

Crerar-Gilbert, A. J., Kyriacou, P. A., Jones, D. P. and Langford, R. M. (2002). Assessment of photoplethysmographic signals for the determination of splanchnic oxygen saturation in humans. Anaesthesia, 57(5), pp. 442-445. doi: 10.1046/j.0003-2409.2001.02453.x

Powell, S., Kyriacou, P. A., Jones, D. P. and Langford, R. M. (2001). Investigation into the use of a new oesophageal pulse oximeter in cardiothoracic surgery patients. British Journal of Anaesthesia, 87(4), 660P-660P. doi: 10.1093/bja/87.4.654

Kyriacou, P. A., Moye, A. R., Choi, D. M., Langford, R. M. and Jones, D. P. (2001). Investigation of the human oesophagus as a new monitoring site for blood oxygen saturation. Physiological Measurement, 22(1), doi: 10.1088/0967-3334/22/1/325

Kyriacou, P. A., Moye, A. R., Gregg, A., Choi, D. M., Langford, R. M. and Jones, D. P. (1999). A system for investigating oesophageal photoplethysmographic signals in anaesthetised patients. Medical & Biological Engineering & Computing, 37(5), pp. 639-643. doi: 10.1007/BF02513360

Kyriacou, P. A., Choi, D. M., Moye, A. R., Langford, R. M. and Jones, D. P. (1999). Design and evaluation of a new electro-optical system for monitoring oesophageal photoplethysmographs. Medical & Biological Engineering & Computing, 37(1),

Moye, A. R., Kyriacou, P. A., Gregg, A., Jones, D. P. and Langford, R. M. (1999). Photoplethysmographic (PPG) signals recorded from the human oesophagus. British Journal of Anaesthesia, A-57,

Book Section

Zaman, T., Kyriacou, P. A., Belhaj, A., Langford, R. M. and Patel, H. (2012). Development of a Reflectance Photoplethysmographic Sensor used for the Assessment of Perfusion of Free Jejunum Flaps: a case report. In: Kyriacou, E., Promponas, V., Loizou, C., Schizas, C. N. and Pattichis, C. S. (Eds.), 2012 IEEE 12th International Conference on Bioinformatics & Bioengineering (BIBE). . IEEE. ISBN 9781467343572

Conference or Workshop Item

Phillips, J. P., Belhaj, A., Langford, R. M. and Kyriacou, P. A. (2013). Effect of respiratory-induced intensity variations on finger SpO2 measurements in volunteers. Paper presented at the 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC’13), 03-07-2013 - 07-07-2013, Osaka, Japan.

Hickey, M., Samuels, N., Randive, N., Langford, R. M. and Kyriacou, P. A. (2010). Preliminary assessment of abdominal organ perfusion utilizing a fiber optic photoplethysmographic sensor. Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference, pp. 1020-1023. doi: 10.1109/IEMBS.2010.5627751 ISSN 1557-170X

Hickey, M., Samuels, N., Randive, N., Langford, R. M. and Kyriacou, P. A. (2010). A New Fibre Optic Pulse Oximeter Probe for Monitoring Splanchnic Organ Arterial Blood Oxygen Saturation. Paper presented at the The 12th Mediterranean Conference on Medical and Biological Engineering and Computing, 27-05-2010 - 30-05-2010, Chalkidiki, Greece.

Phillips, J. P., Langford, R. M., Chang, S. H., Maney, K., Kyriacou, P. A. and Jones, D. P. (2009). Evaluation of a Fiber-optic Esophageal Pulse Oximeter. Paper presented at the EMBC 2009. Annual International Conference of the IEEE, 3-6 Sept. 2009, Minneapolis, MN.

Phillips, J. P., George, K., Kyriacou, P. A. and Langford, R. M. (2009). Investigation of Photoplethysmographic Changes using a Static Compression Model of Spinal Cord Injury. Paper presented at the EMBC 2009. Annual International Conference of the IEEE, 3-6 Sept. 2009, Minneapolis, MN.

Phillips, J. P., Langford, R. M., Chang, S. H., Maney, K., Kyriacou, P. A. and Jones, D. P. (2009). Measurements of Cerebral Arterial Oxygen Saturation using a Fiber-optic Pulse Oximeter. Paper presented at the EMBC 2009. Annual International Conference of the IEEE, 3-6 Sept. 2009, Minneapolis, MN.

Hickey, M., Samuels, N., Randive, N., Langford, R. M. and Kyriacou, P. A. (2009). Development and evaluation of a photometric fibre-optic sensor for monitoring abdominal organ photoplethysmographs and blood oxygen saturation. SPIE Proceedings, 7503, doi: 10.1117/12.834307 ISSN 0277-786X

Hickey, M., Samuels, N., Randive, N., Langford, R. M. and Kyriacou, P. A. (2009). Photoplethysmographic signals from human splanchnic organs using a new fibre-optic sensor. Paper presented at the Annual National Conference of the Institute of Physics and Engineering in Medicine (IPEM), 14-16 Sep 2009, Liverpool, UK.

Nikolic, S., Mehta, V., Ratcliffe, S., Phillips, J. P., Kyriacou, P. A. and Langford, R. M. (2008). A prospective, randomised, double-blind, double-dummy, placebo-controlled trial to assess the respiratory effects of buprenorphine versus morphine in anaesthetised patients. Paper presented at the The 14th World Congress of Anaesthesiologists, 2-7 Mar 2008, Cape Town, South Africa.

Kyriacou, P. A., Crerar-Gilbert, A., Langford, R. M. and Jones, D. P. (2006). Electro-optical techniques for the investigation of photoplethysmographic signals in human abdominal organs. Paper presented at the SECOND INTERNATIONAL CONFERENCE ON OPTICAL AND LASER DIAGNOSTICS, 11-14 Sep 2005, London, UK.

Phillips, J. P., Kyriacou, P. A. and Langford, R. M. (2006). Calibration of an optical fibre cerebral oximeter using a Monte Carlo model. Paper presented at the 12th Annual Scientific Meeting of the Institute of Physics and Engineering in Medicine, Sept 2006, Cambrdige, UK.

Phillips, J. P., Kyriacou, P. A., George, K., Priestley, J. V. and Langford, R. M. (2006). An optical fiber photoplethysmographic system for central nervous system tissue. Paper presented at the 28th Annual Conference of the IEEE Engineering in Medicine and Biology Society, 31 Aug - 3 Sep 2006, New York, USA.

Shafqat, K., Kyriacou, P. A., Langford, R. M. and Jones, D. P. (2004). FIR Filter Design for Removal of Ventilator Artefact in Oesophageal Photoplethysmographic Signals. Paper presented at the The X Mediterranean Conference on Medical and Biological Engineering and Computing (MEDICON 2004), 31 Jul-04 Aug 2004, Naples, Italy.

Kyriacou, P. A., Pal, S. K., Langford, R. M. and Jones, D. P. (2004). Investigation of oesophageal pulse oximetry in burns patients. Paper presented at the Annual National Conference of the Institute of Physics and Engineering in Medicine (IPEM), 6-8 Sep 2004, York, UK.

Shafqat, K., Kyriacou, P. A., Langford, R. M. and Jones, D. P. (2004). Multirate Processing for Removal of Ventilator Artefact in Oesophageal PPG Signals. Paper presented at the Annual National Conference of the Institute of Physics and Engineering in Medicine (IPEM), 6-8 Sep 2004, York, UK.

Phillips, J. P., Langford, R. M., Kyriacou, P. A. and Jones, D. P. (2004). Optical Fibre Catheter Photoplethysmography. Paper presented at the The X Mediterranean Conference on Medical and Biological Engineering and Computing, 31 Jul - 5 Aug 2004, Ischia, Italy.

Kyriacou, P. A., Jones, D. P., Langford, R. M. and Petros, A. J. (2003). Oesophageal Pulse Oximetry in Neonatal and Paediatric Patients. In: UNSPECIFIED . UNSPECIFIED. ISBN 1903613191

Kyriacou, P. A., Langford, R. M., Powell, S. and Jones, D. P. (2002). Oesophageal Pulse Oximetry: A New Monitoring Site. Paper presented at the Annual National Conference of the Institute of Physics and Engineering in Medicine (IPEM), 2002, Durham, UK.

Kyriacou, P. A., Crerar-Gilbert, A., Langford, R. M. and Jones, D. P. (2001). Investigation of Photoplethysmographic Signals in Human Visceral Organs. Paper presented at the IX Mediterranean Conference on Medical and Biological Engineering and Computing (MEDICON 2001), 12-14 Jun 2001, Pula, Croatia.

Kyriacou, P. A., Crerar-Gilbert, A., Langford, R. M. and Jones, D. P. (2000). A new system for estimating human splanchnic oxygen saturation. Paper presented at the Annual National Conference of the Institute of Physics and Engineering in Medicine (IPEM), 13-14 Sep 2000, Southampton, UK.

Kyriacou, P. A., Moye, A. R., Gregg, A., Choi, D. M., Langford, R. M. and Jones, D. P. (1999). Can the Human Oesophagus give adequate PPG Signals for Pulse Oximetry?. Paper presented at the 5th Annual National Conference of the Institute of Physics and Engineering in Medicine (IPEM), Sep 1999, Nottingham, UK.

Kyriacou, P. A., Gregg, A., Langford, R. M. and Jones, D. P. (1998). Investigation of photoplethysmographic signals in the human oesophagus. Paper presented at the VIII Mediterranean Conference on Medical and Biological Engineering and Computing, 14 Jun - 17 Jun 1998, Lemesos, Cyprus.

Kyriacou, P. A., Gregg, A., Langford, R. M. and Jones, D. P. (1998). Investigation of the characteristics of photoplethysmographic signals in the human oesophagus in anaesthetised patients undergoing routine surgery. Paper presented at the 4th Annual National Conference of the Institute of Physics & Engineering in Medicine (IPEM), Sep 1998, Brighton, UK.

This list was generated on Mon Feb 17 05:52:32 2020 UTC.