Results 211 to 220 of about 520,827 (283)

Printed Textile-Based Dry Electrodes for Impedance Plethysmography Measurements

2024 IEEE International Flexible Electronics Technology Conference (IFETC)
In this work, we report on the design, fabrication, and characterization of dry electrodes for the measurement of pulse plethysmography signals from distal arteries via electrical impedance.
Camilo Eduardo Téllez Villamizar, A. Lanthaler, M. C. Costa Angeli, A. Altana, C. Tronstad, G. Cantarella, N. Münzenrieder, P. Ibba, P. Lugli, L. Petti   +9 more
semanticscholar   +1 more source

Noninvasive Cuffless Blood Pressure Estimation Using Pulse Transit Time and Impedance Plethysmography

IEEE Transactions on Biomedical Engineering, 2019
Objective: To demonstrate the feasibility of everaging impedance plethysmography (IPG) for detection of pulse transit time (PTT) and estimation of blood pressure (BP). Methods: We first established the relationship between BP, PTT, and arterial impedance
Toan Huu Huynh, R. Jafari, W. Chung
semanticscholar   +1 more source

Low-Cost and Portable Impedance Plethysmography System for the Simultaneous Detection of Respiratory and Heart Activities

IEEE Sensors Journal, 2019
Impedance plethysmography is a technique that allows monitoring changes in the volume of specific tissues or organs inside the human body, through the measurement of variations in the bio-impedance between electrodes placed on the body surface.
E. Piuzzi, S. Pisa, E. Pittella, L. Podestà, S. Sangiovanni   +4 more
semanticscholar   +1 more source

Wrist Photo-Plethysmography and Bio-Impedance Sensor for Cuff-Less Blood Pressure Monitoring

Italian National Conference on Sensors, 2018
A multimodal wrist sensor system is proposed in this paper for a wearable reflectance photo-plethysmography (PPG) and impedance-plethysmography (IPG) biomedical data sensing.
V. P. Rachim, Toan Huu Huynh, W. Chung
semanticscholar   +1 more source

Meaning of Impedance Plethysmography

Nature, 1967
IMPEDANCE plethysmography is a method of measuring the resistive impedance of a limb segment. Nyboer1 pointed out that the resistive impedance variation ΔR during the heart cycle is proportional to the blood volume ΔV transiently stored in the segment where ρ is the blood ...
U. BECATTINI, M. DELLA CORTE
openaire   +1 more source

Foot-to-Foot Bioelectrical Impedance, Air Displacement Plethysmography, and Dual Energy X-ray Absorptiometry in Resistance-Trained Men and Women

International Journal of Exercise Science, 2018
International Journal of Exercise Science 11(4): 1145-1155, 2018. Accurate assessment of body composition is important to athletic performance goal setting and nutritional program design.
J. Merrigan, S. Gallo, J. Fields, Margaret T. Jones   +3 more
semanticscholar   +1 more source

Impedance Plethysmography: Correlation with Contrast Venography

Radiology, 1977
Impedance plethysmography is a noninvasive, indirect test for deep venous occlusion in the lower limbs. The results of ascending contrast venography impedance plethysmography have been compared in 315 limbs. Impedance plethysmography was positive in 77 of 79 limbs with acute deep vein thrombosis proximal to the calf.
K T, Benedict, H B, Wheeler, N A, Patwardhan   +2 more
openaire   +2 more sources

IMPEDANCE PLETHYSMOGRAPHY IN STUDY OF PERIPHERAL CIRCULATION

Archives of Surgery, 1952
DIGITAL pulse volume studies have proved of great value in the study of the peripheral circulation. The methods most commonly used have the disadvantage that they necessitate placing the digit in an airtight or watertight cylindrical compartment. In most of them the tracings are recorded on photographic paper, and analysis of data must wait until the ...
W S, COXE, H B, SHUMACKER, L W, FREEMAN
openaire   +2 more sources

Errors in four-electrode impedance plethysmography

Medical & Biological Engineering & Computing, 1983
The errors in electrical impedance plethysmography are not well known. In the paper errors due to inadequate instrumentation, improper electrode application, and physiological changes have been analysed. Minimum electrical requirements for a general purpose four-electrode instrument are: (a) input impedance of voltage-sensing circuit+4 kΩ; (b) output ...
D K, Swanson, J G, Webster
openaire   +2 more sources

Tetrapolar Low-Cost Systems for Thoracic Impedance Plethysmography

IEEE International Symposium on Medical Measurements and Applications, 2018
Bioelectrical impedance analysis applied to the pneumographic investigation is a technique for monitoring the breathing activity through the measurement of variations in the trans-thoracic electrical impedance.
L. D’Alvia, Emilia Scalona, E. Palermo, Z. Prete, E. Pittella, S. Pisa, E. Piuzzi   +6 more
semanticscholar   +1 more source