Results 211 to 220 of about 9,619 (252)

Perfusion Index and ultrasonography in the evaluation of infraclavicular block

Minerva Anestesiologica, 2019
It has been reported that noninvasive, objective tests are needed for determining the success of peripheral nerve blocks because conventional methods necessitate the cooperation of the patient. It is also known that the brachial plexus block causes vasodilatation and an increase in blood flow due to its sympathectomy effect.
Rahşan Dilek Okyay, Mehmet Malik Bereket, Gamze Küçükosman, Hilal Ayoğlu, Ferruh Niyazi Ayoğlu, Özcan Pişkin, Bengü Gülhan Aydın   +6 more
openaire   +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

Cerebral Perfusion Index

Journal of Neuroimaging, 1993
Single‐photon emission computed tomography (SPECT) and transcranial Doppler (TCD) ultrasound are of good prognostic value in acute stroke, and combined they may be an accurate way to determine a target group of patients with maximum therapeutic response.
A V, Alexandrov, L E, Ehrlich, C F, Bladin, J W, Norris   +3 more
openaire   +2 more sources

Hepatic perfusion index and the evolution of liver metastases

Nuclear Medicine Communications, 1987
A total of 150 patients with primary carcinoma of the gastrointestinal tract had first-pass technetium colloid scintigraphy to estimate the hepatic perfusion index (HPI). Postoperative follow-up over 2-4 years shows that the HPI remains a sensitive method of detecting hepatic metastases, even in patients whose liver appeared normal at laparotomy.
D A, Cooke, A, Parkin, P, Wiggins, P J, Robinson, G R, Giles   +4 more
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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

Contrast‐Enhanced Doppler Perfusion Index

Journal of Ultrasound in Medicine, 2002
Objective. To assess the potential of the power Doppler signal intensity rate of enhancement due to contrast agent wash‐in for assessment of hepatic hemodynamics. Methods. With the use of standardized settings, power Doppler sonography was performed before and after administration of a contrast agent.
Kumar V, Ramnarine, Edward, Leen, Karren, Oppo, Wilson J, Angerson, Colin S, McArdle   +4 more
openaire   +2 more sources

The serial changes of perfusion index in preterm infants with patent ductus arteriosus: is perfusion index clinically significant?

Minerva pediatrica, 2016
Perfusion Index (PI) which reflects the peripheral blood flow may help early detection and treatment decision of hemodynamically significant patent ductus arteriosus (hsPDA) in preterm infants. The present study is designed to analyze the usefulness of PI level in early detection of hsPDA in preterm infants.Preterm infants born before 36 gestational ...
Terek, Demet, Altun Koroglu, Ozge, Ulger, Zulal, Yalaz, Mehmet, Kultursay, Nilgun   +4 more
openaire   +3 more sources

The renal transplant perfusion index: reduction in the error and variability

European Journal of Nuclear Medicine, 1994
For 15 years, perfusion indices derived from scintigraphic studies have proved useful in the serial evaluation of renal transplants and they have recently been confirmed as being more sensitive than Doppler ultrasound as an indicator of vascular rejection and cyclosporin toxicity.
D, Hamilton, U J, Miola, M C, Payne
openaire   +2 more sources

The perfusion index as a noninvasive method for continuous monitoring of peripheral perfusion: A baseline study to assess the perfusion index in healthy adult volunteers

Journal of Plastic, Reconstructive & Aesthetic Surgery, 2022
Katharina J. Fodor, Alexandra Anker, Lukas Prantl, Talia Bosselmann, Sebastian Geis, Catharina Strauss   +5 more
openaire   +2 more sources