Results 241 to 250 of about 15,598 (296)
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The American Journal of Surgery, 1959
Abstract A method of arterial testing has been described which has enabled surgeons to evaluate accurately the nature of patients' arterial disease, the exact segments of obstruction and to suggest the optimum method of correction, whether this involves embolectomy, grafting, endarterectomy or sympathectomy, and to evaluate instances of traumatic ...
Thomas F. O'Connell, John H. Steelquist
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Abstract A method of arterial testing has been described which has enabled surgeons to evaluate accurately the nature of patients' arterial disease, the exact segments of obstruction and to suggest the optimum method of correction, whether this involves embolectomy, grafting, endarterectomy or sympathectomy, and to evaluate instances of traumatic ...
Thomas F. O'Connell, John H. Steelquist
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Plethysmographic Waveform Devices [PDF]
Journal for Vascular Ultrasound, 2011 Plethysmography is a noninvasive technique which measures volume changes. Common instruments include pneumatic or air plethysmographs and photoplethysmographs. These are used in the vascular laboratory to examine both arterial and venous blood flow.
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A direct reading capacitance plethysmograph
Medical & Biological Engineering, 1970An improved capacitance system for blood flow measurement by venous occlusion plethysmography is described. It is shown both theoretically and experimentally, that the change in the capacitance between the surface of the segment and an encircling flexible screen cuff at a fixed distance from the skin is related to the fractional change in volume of the
Chester Hyman, Jonathan R. Wood
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In vitro validation of a new respiratory ultrasonic plethysmograph.
Veterinary Anaesthesia and Analgesia, 2012OBJECTIVE The in-vitro validation of a novel Respiratory Ultrasonic Plethysmography (RUP) system designed to detect circumference changes of rib cage and abdominal compartments in large and small animals.
J. Schramel, R. VAN DEN HOVEN, Y. Moens
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Automated venous occlusion plethysmograph
Medical & Biological Engineering & Computing, 1988A self-contained automated system for venous occlusion plethysmography is described. The system is microprocessor controlled and performs the complete venous occlusion plethysmographic process of measurement, analysis and printout of results at the command of two keypresses on a keypad. Limb circulation is modelled by a linear model. Limb volume change
F. M. Davis, A. M. Sinton, A.D. Seagar
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Plethysmographic specific airway resistance [PDF]
Paediatric Respiratory Reviews, 2006 sRaw measurements are feasible in children from 2 years of age. sRaw allows clinical monitoring and research during this critical period of growth and development in early life. sRaw measurements promise to bridge the gap of lung function measurements between infancy and school age.
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Description of a new plethysmograph
American Heart Journal, 1940Abstract A new plethysmograph, ∗ ∗The apparatus was constructed by the Kruger and Hudepohl Co., Cincinnati, Ohio. which can be utilized in the study of blood flow in the hand, the forearm, or the leg, is described.
David I. Abramson +3 more
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Discriminative and Predictive Validity of the Penile Plethysmograph in Adolescent Sex Offenders
Sexual abuse. A Journal of Research and Treatment, 2009The current study addresses the discriminative and predictive validity of the penile plethysmograph (PPG) in a sample of 132 male adolescent sex offenders who were admitted to a sex offender treatment program.
R. Clift, Gordana Rajlic, H. Gretton
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Plethysmographic studies in atherosclerosis obliterans
The American Journal of Cardiology, 1960Abstract The abnormalities of digital pulse volume in a series of twenty-two patients with atherosclerosis obliterans of the lower limbs are reported. After a correlation between arteriographic and plethysmographic findings, three types of abnormalities are distinguished in the pulse volume contour: Grade 1: the peak is rounded, dicrotic phenomena ...
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Calibration of respiratory inductive plethysmograph during natural breathing.
Journal of applied physiology, 1989We describe a single-posture method for deriving the proportionality constant (K) between rib cage (RC) and abdominal (AB) amplifiers of the respiratory inductive plethysmograph (RIP). Qualitative diagnostic calibration (QDC) is based on equations of the
Marvin A. Sackner +7 more
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