Results 11 to 20 of about 124,759 (287)

The relationship between myocardial perfusion scanning results, C-reactive protein to albumin ratio, systemic inflammatory response index and coronary angiographic findings [PDF]

open access: yesĶazaķstannyṇ Klinikalyķ Medicinasy, 2022
Aim: We aimed to investigate whether C-reactive protein to albumin ratio (CAR) and systemic inflammatory response index (SIRI) have an additional value in interpretation of myocardial perfusion scanning (MPS) results.
Yasin Yüksel, Cennet Yıldız
doaj   +1 more source

Computation of contrast-enhanced perfusion using only two CT scan phases: a proof-of-concept study on abdominal organs

open access: yesEuropean Radiology Experimental, 2022
Background Computed tomography perfusion imaging (CTPI) by repeated scanning has clinical relevance but implies relatively high radiation exposure. We present a method to measure perfusion from two CT scan phases only, considering tissue enhancement ...
Massimo Cressoni   +7 more
doaj   +1 more source

The Contribution of White Matter Diffusion and Cortical Perfusion Pathology to Vascular Cognitive Impairment: A Multimode Imaging-Based Machine Learning Study

open access: yesFrontiers in Aging Neuroscience, 2021
Widespread impairments in white matter and cerebrovascular integrity have been consistently implicated in the pathophysiology of patients with small vessel disease (SVD).
Yao Wang   +7 more
doaj   +1 more source

An optimized 3D-printed perfusion bioreactor for homogeneous cell seeding in bone substitute scaffolds for future chairside applications

open access: yesScientific Reports, 2021
A clinical implementation of cell-based bone regeneration in combination with scaffold materials requires the development of efficient, controlled and reproducible seeding procedures and a tailor-made bioreactor design.
Nadja Engel   +11 more
doaj   +1 more source

Simplified perfusion fraction from diffusion-weighted imaging in preoperative prediction of IDH1 mutation in WHO grade II–III gliomas: comparison with dynamic contrast-enhanced and intravoxel incoherent motion MRI

open access: yesRadiology and Oncology, 2020
Effect of isocitr ate dehydrogenase 1 (IDH1) mutation in neovascularization might be linked with tissue perfusion in gliomas. At present, the need of injection of contrast agent and the increasing scanning time limit the application of perfusion ...
Wang Xiaoqing   +5 more
doaj   +1 more source

Relative Perfusion Differences between Parathyroid Adenomas and the Thyroid on Multiphase 4DCT

open access: yesInternational Journal of Biomedical Imaging, 2022
A multiphase 4DCT technique can be useful for the detection of parathyroid adenomas. Up to 16 different phases can be obtained without significant increase of exposure dose using wide beam axial scanning. This technique also allows for the calculation of
Steven P. M. J. Raeymaeckers   +4 more
doaj   +1 more source

Comparison of Adaptive Optics Scanning Light Ophthalmoscopic Fluorescein Angiography and Offset Pinhole Imaging [PDF]

open access: yes, 2014
Recent advances to the adaptive optics scanning light ophthalmoscope (AOSLO) have enabled finer in vivo assessment of the human retinal microvasculature. AOSLO confocal reflectance imaging has been coupled with oral fluorescein angiography (FA), enabling
Chui, Toco Y.P.   +8 more
core   +3 more sources

Stroke penumbra defined by an MRI-based oxygen challenge technique: 1. validation using [14C]2-deoxyglucose autoradiography [PDF]

open access: yes, 2011
Accurate identification of ischemic penumbra will improve stroke patient selection for reperfusion therapies and clinical trials. Current magnetic resonance imaging (MRI) techniques have limitations and lack validation.
Barrie Condon   +9 more
core   +1 more source

Perfluorocarbon Enhanced Glasgow Oxygen Level Dependent (GOLD) magnetic resonance metabolic imaging identifies the penumbra following acute ischemic stroke [PDF]

open access: yes, 2018
The ability to identify metabolically active and potentially salvageable ischaemic penumbra is crucial for improving treatment decisions in acute stroke patients.
Brennan, David   +5 more
core   +1 more source

Impaired endothelial function of the retinal vasculature in hypertensive patients [PDF]

open access: yes, 2004
<p><b>Background and Purpose:</b> Arterial hypertension constitutes a central factor in the pathogenesis of stroke. We examined endothelial function of the retinal vasculature as a model of the cerebral circulation.</p> <p ...
Delles, C.   +5 more
core   +1 more source

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