The Experts below are selected from a list of 303 Experts worldwide ranked by ideXlab platform
S. Cerutti - One of the best experts on this subject based on the ideXlab platform.
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Parameters measurement of coronary Blood Flow Velocity using a fast wavelet transform based algorithm
Proceedings of 18th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 1996Co-Authors: C. Francalancia, V. Di Virgilio, E. Conti, M.l. Finocchiaro, A. Lupi, S. CeruttiAbstract:An algorithm based on fast wavelet transform has been developed for detecting diastolic and systolic coronary Blood Flow Velocity signals characteristic patterns. The fast wavelet transform is used as a denoising tool to distinguish coronary Blood Flow waves from major noise, artifacts and baseline drift. Start-end diastolic-systolic fiducial points have been automatically detected to measure coronary Blood Flow Velocity characteristic parameters. Feasibilty of scientific and clinical investigation assessment of coronary artery disease is presented through phasic coronary Blood Flow beat-to-beat analysis.
Ardon Rubinstein - One of the best experts on this subject based on the ideXlab platform.
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Retinal Blood Flow Velocity in metabolic syndrome
Graefes Archive for Clinical and Experimental Ophthalmology, 2013Co-Authors: Shay Gutfreund, Elena Izkhakov, Russell Pokroy, Marianna Yaron, Hanny Yeshua, Zvia Burgansky-eliash, Adiel Barak, Ardon RubinsteinAbstract:Background Metabolic syndrome (MetS) is characterized by obesity, insulin resistance, dyslipidemia, and hypertension. The Retinal Function Imager (RFI) is a new technique for measuring retinal Blood-Flow Velocity. This study aims to compare retinal Blood Flow Velocity between MetS and healthy subjects.
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increased retinal Blood Flow Velocity in patients with early diabetes mellitus
Retina-the Journal of Retinal and Vitreous Diseases, 2012Co-Authors: Zvia Burganskyeliash, Adiel Barak, Hila Barash, Amiram Grinvald, Darin Nelson, Orly Pupko, Anat Lowenstein, Ardon RubinsteinAbstract:Purpose:To compare retinal Blood Flow Velocity in small vessels of patients with early diabetes mellitus (DM), without any morphologic changes related to diabetic retinopathy, with that in a control group.Methods:The authors used the retinal function imager to measure Blood Flow velocities, from man
Zvia Burganskyeliash - One of the best experts on this subject based on the ideXlab platform.
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increased retinal Blood Flow Velocity in patients with early diabetes mellitus
Retina-the Journal of Retinal and Vitreous Diseases, 2012Co-Authors: Zvia Burganskyeliash, Adiel Barak, Hila Barash, Amiram Grinvald, Darin Nelson, Orly Pupko, Anat Lowenstein, Ardon RubinsteinAbstract:Purpose:To compare retinal Blood Flow Velocity in small vessels of patients with early diabetes mellitus (DM), without any morphologic changes related to diabetic retinopathy, with that in a control group.Methods:The authors used the retinal function imager to measure Blood Flow velocities, from man
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retinal Blood Flow Velocity measured by retinal function imaging in retinitis pigmentosa
Graefes Archive for Clinical and Experimental Ophthalmology, 2011Co-Authors: Sven C Beutelspacher, Nermin Serbecic, Hila Barash, Zvia Burganskyeliash, Amiram Grinvald, H Krastel, Jost B JonasAbstract:Background To measure the retinal Blood Flow Velocity in patients with retinitis pigmentosa using the retinal function imaging technique.
Edward Frohlich - One of the best experts on this subject based on the ideXlab platform.
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monitoring of respiratory variations of aortic Blood Flow Velocity using esophageal doppler
Intensive Care Medicine, 2004Co-Authors: M Slama, H Masson, Jeanlouis Teboul, Marieluce Arnould, Rachida Naitkaoudjt, Bouchra Colas, Marcel Peltier, Christophe Tribouilloy, Dinko Susic, Edward FrohlichAbstract:Objective The purpose of this study was to determine whether monitoring of respiratory changes in aortic Blood Flow Velocity, recorded by esophageal Doppler, could be used to detect changes in volume depletion.
Håkan Stale - One of the best experts on this subject based on the ideXlab platform.
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aortic diameter pulse waves and Blood Flow Velocity in the small for gestational age fetus
Ultrasound in Medicine and Biology, 1991Co-Authors: Håkan Stale, Karel Marsal, G Gennser, Morten Benthin, P Dahl, Kjell LindstromAbstract:Abstract An ultrasound phase-locked, echo-tracking system was used for noninvasive measurements of pulsatile diameter changes in the descending aorta of 60 small, for gestational age (SGA), fetuses and of 60 fetuses appropriate for gestational age (AGA). Pulsed Doppler ultrasound was used for the recording of Blood Flow Velocity in the aorta and in the umbilical artery of the SGA fetuses. In the SGA fetuses, a weight-related higher end-diastolic diameter and a lower relative pulse amplitude suggest that diastolic Blood pressure was increased; a less steep rise of the initial ascending part of the pulse wave and a lower relative pulse amplitude suggest that the absolute stroke volume was decreased. Except for a positive correlation between relative pulse amplitude and mean Velocity in the aorta, no correlation was found between diameter pulse waves and Blood Flow Velocity. Aortic diameter pulse waves apparently yield no unequivocal information as to peripheral resistance, for which purpose Blood Flow Velocity waveform analysis would seem, at least at present, to be the only available method.
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Blood Flow Velocity and pulsatile diameter changes in the fetal descending aorta: A longitudinal study
American Journal of Obstetrics and Gynecology, 1990Co-Authors: Håkan Stale, Gerhard Gennser, Karel MarsalAbstract:Blood Flow Velocity and pulsatile diameter changes in the fetal descending aorta were measured subsequently with pulsed Doppler ultrasonography and phase-locked echo-tracking technique, respectively. Blood Flow Velocity and pulse-wave curves wih equal beat-to-beat intervals were synchronized by external fetal electrocardiogram. The systolic increase in Blood Flow Velocity and in vessel diameter started simultaneously. The Velocity peak preceded the diameter peak by a significant margin ( p in the range 0.0001 to 0.0014). The time interval was more pronounced in the thoracic than in the abdominal part of the aorta and was slightly smaller near term. The effective diameter, calculated from the synchronized integrals of the Blood Flow Velocity and the diameter curves, was significantly greater ( p in the range 0.0001 to 0.0016) than the mean diameter. The difference tended to decrease with advancing gestational age and was more pronounced in the thoracic than in the abdominal aorta. The maximum error incurred by the use of nonsimultaneous measurements of Blood Flow Velocity and vessel diameter when calculating volume Blood Flow was found to be
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Blood Flow Velocity and pulsatile diameter changes in the fetal descending aorta: a longitudinal study.
American journal of obstetrics and gynecology, 1990Co-Authors: Håkan Stale, Gerhard Gennser, Karel MarsalAbstract:Blood Flow Velocity and pulsatile diameter changes in the fetal descending aorta were measured subsequently with pulsed Doppler ultrasonography and phase-locked echo-tracking technique, respectively. Blood Flow Velocity and pulse-wave curves with equal beat-to-beat intervals were synchronized by external fetal electrocardiogram. The systolic increase in Blood Flow Velocity and in vessel diameter started simultaneously. The Velocity peak preceded the diameter peak by a significant margin (p in the range 0.0001 to 0.0014). The time interval was more pronounced in the thoracic than in the abdominal part of the aorta and was slightly smaller near term. The effective diameter, calculated from the synchronized integrals of the Blood Flow Velocity and the diameter curves, was significantly greater (p in the range 0.0001 to 0.0016) than the mean diameter. The difference tended to decrease with advancing gestational age and was more pronounced in the thoracic than in the abdominal aorta. The maximum error incurred by the use of nonsimultaneous measurements of Blood Flow Velocity and vessel diameter when calculating volume Blood Flow was found to be less than 8% and thus probably of little practical importance.
