Results 31 to 40 of about 266,391 (304)

Quantitative Analysis of Brain CT Perfusion in Healthy Beagle Dogs: A Pilot Study

open access: yesVeterinary Sciences, 2023
Brain computed tomography (CT) perfusion is a technique that allows for the fast evaluation of cerebral hemodynamics. However, quantitative studies of brain CT perfusion in veterinary medicine are lacking. The purpose of this study was to investigate the
Soyon An   +4 more
doaj   +1 more source

Dehydration accelerates reductions in cerebral blood flow during prolonged exercise in the heat without compromising brain metabolism [PDF]

open access: yes, 2015
Dehydration hastens the decline in cerebral blood flow (CBF) during incremental exercise, while the cerebral metabolic rate for oxygen (CMRO2) is preserved.
Benjamin Garcia   +8 more
core   +2 more sources

Quantitative Assessment of Tissue Perfusion in Hepatocellular Carcinoma Using Perflubutane Dynamic Contrast-Enhanced Ultrasonography: A Preliminary Study

open access: yesDiagnostics, 2015
Our purpose in this study was to assess the relationship between contrast signal intensity (CI) and concentration of perflubutane microbubbles in a phantom experiment, and to examine the feasibility of this technique for quantitative analysis of ...
Naoki Ohno   +3 more
doaj   +1 more source

Stable coronary syndromes: pathophysiology, diagnostic advances and therapeutic need [PDF]

open access: yes, 2018
The diagnostic management of patients with angina pectoris typically centres on the detection of obstructive epicardial CAD, which aligns with evidence-based treatment options that include medical therapy and myocardial revascularisation.
Berry, Colin   +2 more
core   +1 more source

Perfusion index as a predictor of hypotension following propofol induction - A prospective observational study

open access: yesIndian Journal of Anaesthesia, 2017
Background and Aims: Hypotension during propofol induction is a common problem. Perfusion index (PI), an indicator of systemic vascular resistance, is said to be predictive of hypotension following subarachnoid block.
Sripada G Mehandale, Preethi Rajasekhar
doaj   +1 more source

Automated Detection of Regions of Interest for Brain Perfusion MR Images [PDF]

open access: yes, 2018
Images with abnormal brain anatomy produce problems for automatic segmentation techniques, and as a result poor ROI detection affects both quantitative measurements and visual assessment of perfusion data.
Alkhimova, Svitlana M
core   +2 more sources

In systemic sclerosis skin perfusion of hands is reduced and may predict the occurrence of new digital ulcers [PDF]

open access: yes, 2017
Systemic sclerosis (SSc) patients are at high risk for the development of ischemic digital ulcers (DUs). The aim of this study was to assess in SSc patients a correlation between skin perfusion evaluated by LDPI and DUs and to evaluate the prognostic ...
Barbano, Biagio   +6 more
core   +1 more source

Perfusion index and plethysmographic variability index in patients with interscalene nerve catheters [PDF]

open access: yesCanadian Journal of Anesthesia/Journal canadien d'anesthésie, 2012
Interscalene nerve blocks provide adequate analgesia, but there are no objective criteria for early assessment of correct catheter placement. In the present study, pulse oximetry technology was used to evaluate changes in the perfusion index (PI) in both blocked and unblocked arms, and changes in the plethysmographic variability index (PVI) were ...
Sebastiani, Anne   +8 more
openaire   +2 more sources

Perfusion index as a predictor of hypotension following spinal anaesthesia in lower segment caesarean section

open access: yesIndian Journal of Anaesthesia, 2017
Background and Aims: Perfusion index (PI) is a new parameter tried for predicting hypotension during spinal anaesthesia for the lower segment caesarean section (LSCS). This study aimed at investigating the correlation between baseline perfusion index and
Devika Rani Duggappa   +5 more
doaj   +1 more source

Diagnostic accuracy of myocardial perfusion imaging with czt technology. Systemic review and meta-analysis of comparison with invasive coronary angiography [PDF]

open access: yes, 2017
OBJECTIVES: This study sought to summarize the evidence on stress myocardial perfusion imaging (MPI) using cadmium-zinc-telluride (CZT) technology for the diagnosis of obstructive coronary artery disease (CAD). The CZT cameras are newly introduced, and
Biondi-Zoccai, Giuseppe   +5 more
core   +2 more sources

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