Results 201 to 210 of about 4,249,101 (249)

Application of the perfusion index in obstetric bleeding

The Journal of Maternal-Fetal & Neonatal Medicine, 2016
We assessed the utility of the pulse oximeter perfusion index (PI) in maternal monitoring immediately after delivery.We examined 30 pregnant women without any complications using the Rad7 device at delivery. The correlations between heart rate (HR), systolic blood pressure (BP), oxygen saturation SpO2, PI, Pleth variability index (PVI), shock index and
Hiroaki, Tanaka, Shinji, Katsuragi, Kayo, Tanaka, Takuya, Kawamura, Masafumi, Nii, Michiko, Kubo, Kazuhiro, Osato, Yoshihito, Sasaki, Tomoaki, Ikeda   +8 more
openaire   +2 more sources

A model of the hepatic perfusion index in the rat

Nuclear Medicine Communications, 1987
The hepatic perfusion index (HPI) is an indicator of the relative hepatic arterial to total liver blood flow as measured by dynamic flow scintigraphy. Hitherto, accurate assessment of the HPI in small animals has not been possible because of methodological difficulties.
D M, Nott, J S, Grime, J, Yates, M P, O'Driscoll, J N, Baxter, T G, Cooke, S A, Jenkins   +6 more
openaire   +2 more sources

The perfusable tissue index: a marker of myocardial viability

Journal of Nuclear Cardiology, 2003
PTI is a promising technique for detecting viable myocardium. The need for a PET scanner, an onsite cyclotron, and expertise regarding the production and administration of O-15-labeled water and carbon monoxide results in a tool that is only available in a limited number of centers worldwide.
Knaapen, Paul, Boellaard, Ronald, Götte, Marco J.W., van der Weerdt, Arno P., Visser, Cees A., Lammertsma, Adriaan A., Visser, Frans C.   +6 more
openaire   +3 more sources

Hepato-mesenteric index: A new Doppler index in the hepatic perfusion’s study. Comparison with Doppler perfusion index

2009
Purpose Methods and Materials Results ...
FOTI, Pietro Valerio, Farina R, Coronella MV, La Scola S, Minardi R, Riva G, Pennisi F, Ettorre GC   +7 more
openaire   +3 more sources

The perfusion index of healthy term infants during transition at birth [PDF]

European Journal of Pediatrics, 2015
Perfusion index is a continuous parameter provided by pulse oximetry and might be useful for evaluating hemodynamic changes at birth and identifying transitional problems.
Ilona C Narayen, Arjan B te Pas, Jeroen J van Vonderen   +2 more
exaly   +2 more sources

The influence of downstream arterial perfusion parameters on Doppler pulsatility index and resistance index in an in-vitro perfusion model

Vasa, 2006
Background: To investigate in vitro how downstream perfusion parameters influence pulsatility index (PI), resistance index (RI) and their constituting Doppler velocities. Materials and methods: We analyzed the influence of resistance, compliance, reflection coefficient and input impedance on PI and RI in an in-vitro model of arterial flow.
B, Schmidt, D, Ockert, A, Deussen, S, Schellong   +3 more
openaire   +2 more sources

Perfusion index as a possible predictor for postanesthetic shivering

Journal of Anesthesia, 2013
Postanesthetic shivering can be triggered by surgical stress and several aspects of anesthetic management and is frequently preceded by a decrease in peripheral blood flow due to thermoregulatory vasoconstriction. As perfusion index correlates with peripheral blood flow, we examined whether perioperative perfusion index, measured using pulse oximetry ...
Kohei Godai, Tomoyuki Kuwaki, Tamotsu Kuniyoshi   +2 more
exaly   +3 more sources

The Rewarming Index Formula for Pediatric Cardiopulmonary Perfusion

Artificial Organs, 2009
AbstractCareful rewarming of perfusion blood following cardiopulmonary bypass surgery is critical to a successful outcome, but the optimal rewarming strategy is not clear. The purpose of this study was to derive a formula for a rewarming index (defined as [rewarming time × perfusion flow]/[body weight × body surface area]) that would enable the ...
Hideshi, Itoh, Shingo, Kasahara, Yasuhiro, Fujii, Ysuhiro, Kotani, Sadahiko, Arai, Shunji, Sano   +5 more
openaire   +2 more sources

Arteriovenous pH difference—A new index of perfusion

Journal of Pediatric Surgery, 1988
Measurement of the pH of arterial blood may not reflect early stages of anaerobic metabolism. Since a relationship exists between pH and cellular utilization of oxygen, this study sought to determine whether the difference between arterial and venous pH might serve as a more useful index for estimating the adequacy of tissue perfusion.
K S, Bergman, B H, Harris
openaire   +2 more sources

A Liver-Trapping Index of Radiocolloid as an Estimation of Perfusion

Radiology, 1971
A method of obtaining a parameter for radiocolloid trapping by the Kupffer cells using a direct-store video tape data processor is outlined. Activity histograms for 99mTc sulfide colloid are obtained on playback for liver and mediastinal blood pool. A net 4.5 to 1.5 minute count rate ratio for each tracing is procured, and a liver trapping index is ...
L, Rosenthall, N D, Greyson, Y, Lacourcière, A, Arzoumanian   +3 more
openaire   +2 more sources