Results 21 to 30 of about 1,215,000 (384)

Inter-study reproducibility of arterial spin labelling magnetic resonance imaging for measurement of renal perfusion in healthy volunteers at 3 Tesla [PDF]

open access: yes, 2014
Background: Measurement of renal perfusion is a crucial part of measuring kidney function. Arterial spin labelling magnetic resonance imaging (ASL MRI) is a non-invasive method of measuring renal perfusion using magnetised blood as endogenous contrast ...
Delles, C.   +10 more
core   +3 more sources

An integrated perfusion machine preserves injured human livers for 1 week

open access: yesNature Biotechnology, 2020
The ability to preserve metabolically active livers ex vivo for 1 week or more could allow repair of poor-quality livers that would otherwise be declined for transplantation.
D. Eshmuminov   +13 more
semanticscholar   +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

Review of Perfusion Imaging in Acute Ischemic Stroke: From Time to Tissue.

open access: yesStroke, 2020
Perfusion imaging uses an intravascular tracer and serial imaging to quantify blood flow through the brain parenchyma. In acute ischemic stroke, perfusion imaging may increase diagnostic accuracy, aid treatment target identification, and provide ...
J. Demeestere   +4 more
semanticscholar   +1 more source

A new liver perfusion and preservation system for transplantation Research in large animals [PDF]

open access: yes, 1990
A kidney perfusion machine, model MOX-100 (Waters Instruments, Ltd, Rochester, MN) was modified to allow continuous perfusion of the portal vein and pulsatile perfusion of the hepatic artery of the liver. Additional apparatus consists of a cooling system,
A. Jake Demetris   +17 more
core   +1 more source

Thrombolysis Guided by Perfusion Imaging up to 9 Hours after Onset of Stroke

open access: yesNew England Journal of Medicine, 2019
Background The time to initiate intravenous thrombolysis for acute ischemic stroke is generally limited to within 4.5 hours after the onset of symptoms.
Henry Ma   +44 more
semanticscholar   +1 more source

Development of a high-precision bladder hyperthermic intracavitary chemotherapy device for bladder cancer and pharmacokinetic study

open access: yesBMC Urology, 2019
Background Bladder hyperthermic intracavitary chemotherapy (HIVEC) has good effectiveness for bladder cancer, but conventional HIVEC systems lack precision and convenient application.
Mingchen Ba   +8 more
doaj   +1 more source

Magnetic levitation pump versus constrained vortex pump: a pilot study on the hemolysis effect during minimal invasive extracorporeal circulation

open access: yesJournal of Cardiothoracic Surgery, 2021
Background Elevated plasma free hemoglobin is associated with multi-organ injury. In this context, minimally invasive extracorporeal technologies represent a way to reduce this complication following cardiac surgery.
Ignazio Condello   +5 more
doaj   +1 more source

Contrast-enhanced ultrasound examination for the assessment of renal perfusion in cats with chronic kidney disease [PDF]

open access: yes, 2017
Background: Contrast-enhanced ultrasound examination (CEUS) is a functional imaging technique allowing noninvasive assessment of tissue perfusion. Studies in humans show that the technique holds great potential to be used in the diagnosis of chronic ...
Daminet, Sylvie   +6 more
core   +2 more sources

The Prognostic Significance of Quantitative Myocardial Perfusion

open access: yesCirculation, 2020
Supplemental Digital Content is available in the text. Background: Myocardial perfusion reflects the macro- and microvascular coronary circulation.
K. Knott   +17 more
semanticscholar   +1 more source

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