Results 31 to 40 of about 497,841 (322)

Usefulness of a visual aid in achieving optimal positioning for spinal anesthesia: a randomized trial

open access: yesBMC Anesthesiology, 2018
Background Optimal patient positioning is perceived as an essential factor to increase the success of performing neuraxial blockade. The primary objective of this study was to evaluate the benefit of using a visual image in addition to verbal ...
Usha Gurunathan   +3 more
doaj   +1 more source

Monitoring Microcirculatory Blood Flow during Cardiopulmonary Bypass in Paediatric Cardiac Surgery Patients as a Predictor for Anaerobic Metabolism [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2017
Introduction: Improving tissue oxygenation is one of most important tasks in management of low cardiac output. Central venous oxygen saturation (ScvO2 ) and lactate are established criteria for monitoring the adequacy of tissue oxygenation.
Ramesh Patel   +5 more
doaj   +1 more source

High pressure excursion in a radial design oxygenator

open access: yesThe Journal of ExtraCorporeal Technology
Oxygenator high-pressure (HPE) is a phenomenon that can occur during cardiopulmonary bypass (CPB) in which the oxygenator inlet pressure increases rapidly, thereby limiting flow. Most perfusionists globally do not use inlet oxygenator pressure monitoring
Svec Ashley   +3 more
doaj   +1 more source

Infrared Thermography in Wound Care, Surgery, and Sports Medicine: A Review

open access: yesFrontiers in Physiology, 2022
For many years, the role of thermometry was limited to systemic (core body temperature) measurements (e.g., pulmonary catheter) or its approximation using skin/mucosa (e.g., axillary, oral, or rectal) temperature measurements.
Jose L. Ramirez-GarciaLuna   +7 more
doaj   +1 more source

Multi-delay arterial spin-labeled perfusion estimation with biophysics simulation and deep learning [PDF]

open access: yesarXiv, 2023
Purpose: To develop biophysics-based method for estimating perfusion Q from arterial spin labeling (ASL) images using deep learning. Methods: A 3D U-Net (QTMnet) was trained to estimate perfusion from 4D tracer propagation images. The network was trained and tested on simulated 4D tracer concentration data based on artificial vasculature structure ...
arxiv  

Novel portable hypothermic machine perfusion preservation device enhances cardiac viability of donated human hearts

open access: yesFrontiers in Cardiovascular Medicine
IntroductionHeart transplant remains the gold standard treatment for patients with advanced heart failure. However, the list of patients waiting for a heart transplant continues to increase.
Kristina Andrijauskaite   +12 more
doaj   +1 more source

Adapting and applying student-centered learning in a perfusion clinical rotation

open access: yesThe Journal of ExtraCorporeal Technology
While the process of teaching student perfusionists has been in development since the 1950s, the publication of the processes to improve perfusion clinical education has been largely lacking.
Neal James R., Blau Caitlin, Colby Clint
doaj   +1 more source

Noise and dose reduction in CT brain perfusion acquisition by projecting time attenuation curves onto lower dimensional spaces [PDF]

open access: yesarXiv, 2021
CT perfusion imaging (CTP) plays an important role in decision making for the treatment of acute ischemic stroke with large vessel occlusion. Since the CT perfusion scan time is approximately one minute, the patient is exposed to a non-negligible dose of ionizing radiation.
arxiv  

Brain Tissues Segmentation on MR Perfusion Images Using CUSUM Filter for Boundary Pixels [PDF]

open access: yesInternational Journal of Computing (2019), V. 18, N 2., P. 127-134, 2019
The fully automated and relatively accurate method of brain tissues segmentation on T2-weighted magnetic resonance perfusion images is proposed. Segmentation with this method provides a possibility to obtain perfusion region of interest on images with abnormal brain anatomy that is very important for perfusion analysis.
arxiv   +1 more source

Hypothermic liver perfusion [PDF]

open access: yesCurrent Opinion in Organ Transplantation, 2017
The review describes recent developments in hypothermic machine liver perfusion with a special focus on underlying protective mechanisms, and the role of this perfusion technique in high-risk donor-recipient combinations.To maximize the number of transplantable donor livers, several centres are exploring new machine preservation techniques.
Schlegel, Andrea   +2 more
openaire   +3 more sources

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