Results 221 to 230 of about 162,263 (262)

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

Perfusion index in the preterm infant immediately after birth

Early Human Development, 2015
To evaluate PI in preterm infants during the first 10 min of life.An observational study was conducted in the delivery room on preterm infants (less than 32 week gestation). PI values were obtained from a pre ductal saturation probe placed on the right wrist.
G.A. Hawkes, J.M. OToole, M. Kenosi, C.A. Ryan, E.M. Dempsey   +4 more
openaire   +2 more sources

Myocardial Perfusion Reserve Index in Children With Kawasaki Disease

Journal of Magnetic Resonance Imaging, 2017
BackgroundCoronary artery lesions in patients with Kawasaki disease (KD) can impair myocardial perfusion, yet evaluation of perfusion defects by cardiac magnetic resonance (MR) in children is often qualitative.PurposeIn this study we aimed to use a quantitative method of myocardial perfusion using stress cardiac MR‐derived myocardial perfusion reserve ...
Richard M. Friesen, Michal Schäfer, Pei‐Ni Jone, Nana Appiawiah, Daniel Vargas, Brian Fonseca, Michael V. DiMaria, Uyen Truong, LaDonna Malone, Lorna P. Browne   +9 more
openaire   +2 more sources

The role of the perfusion index in patients with thoracic trauma

World Journal of Emergency Medicine, 2022
İsmail, Uzkuç, Ekim Saglam, Gurmen, Cumhur Murat, Tulay   +2 more
openaire   +2 more sources

Perfusion Pressure and the Papillary Perfusion Index in a Non-glaucomatous population

1984
Le prove clinico-sperimentali hanno messo in luce che nel meccanismo patogenetico del danno al nervo ottico nel glaucoma, l'equilibrio tra la pressione intraoculare e la pressione sistemica rappresenta un parametro importante. In una popolazione non glaucomatosa, selezionata con pressione intraoculare normale e valori sia normali che alti della ...
PESCOSOLIDO, Nicola, M. G. Bucci, R. Dominici   +2 more
openaire   +1 more source

Plethysmographic Peripheral Perfusion Index: Could It Be a New Vital Sign?

Frontiers in Medicine, 2021
Maha Mostafa, Ahmed Hasanin, Mostafa Maha   +2 more
exaly