Results 151 to 160 of about 1,652,342 (214)

Hyperacute Interleukin‐1β Production and Neutrophil Extracellular Trap Formation in the Cerebral Circulation of Stroke Patients with Large Vessel Occlusion

open access: yesAnnals of Neurology, Volume 100, Issue 4, Page 824-840, October 2026.
Acute ischemic stroke due to large vessel occlusion is associated with rapid intravascular immune activation. Analysis of arterial blood sampled distal to the thrombus during mechanical thrombectomy revealed increased extracellular adenosine triphosphate (ATP) and interleukin‐1β (IL‐1β) levels, evidence of inflammasome priming in monocytes, and ...
Justine Münsterberg   +33 more
wiley   +1 more source

DTI‐ALPS Primarily Reflects White Matter Diffusion Dispersion and Microstructural Heterogeneity in Neurodegeneration: Insights From Multi‐Modal MRI

open access: yesHuman Brain Mapping, Volume 47, Issue 14, October 1, 2026.
In a 100‐patient memory‐clinic cohort, DTI‐ALPS was evaluated along with diffusion and microstructural metrics. DTI‐ALPS correlated strongly with mode of anisotropy and orientation dispersion index, and moderately with T1/FLAIR ratio and diamagnetic susceptibility, indicating that DTI‐ALPS mainly reflects white‐matter diffusion complexity rather than ...
Luca Sacchi   +14 more
wiley   +1 more source

Postprandial Changes in Thoracic Aortic Flow Detected by 4D Flow MRI May Influence Study Results

open access: yesJournal of Magnetic Resonance Imaging, Volume 64, Issue 4, Page 898-905, October 2026.
ABSTRACT Background While there is a growing body of data using 4D flow MRI to distinguish between normal and abnormal blood flow values in the thoracic aorta, the extent of physiological variation or lack thereof is potentially undervalued. Physiological processes such as postprandial changes to hemodynamics might influence data, normal values, follow‐
Maren Friederike Balks   +11 more
wiley   +1 more source

T1‐weighting in Steady‐State FLASH MRI–Diffusion Is Not Only Supportive but Mandatory for the Contrast

open access: yesMagnetic Resonance in Medicine, Volume 96, Issue 4, Page 1789-1797, October 2026.
ABSTRACT Purpose FLASH imaging is widely assumed to produce a T1‐weighted steady‐state contrast using RF‐ and gradient‐spoiling. We observed substantial overestimation of CSF signals in simulations, when diffusion was neglected and realistic proton density was applied.
Simon Weinmüller   +7 more
wiley   +1 more source

Quantitative Susceptibility Mapping of Kidney Stones: An Ex Vivo MRI Phantom Study

open access: yesMagnetic Resonance in Medicine, Volume 96, Issue 4, Page 1846-1859, October 2026.
ABSTRACT Purpose To visualize and characterize the five most common kidney stone types based on their magnetic susceptibilities in MRI using QSM. Methods Three water‐based agar phantoms were constructed, containing a total of 53 ex vivo kidney stones of varying types and sizes.
Lion H. Mücke   +8 more
wiley   +1 more source

Impact of a Specialized Care Pathway for ICU Patients With Disorders of Consciousness: Observational Insights From an Expert Center

open access: yesEuropean Journal of Neurology, Volume 33, Issue 10, October 2026.
In a cohort of 124 patients from 37 ICUs referred to an expert center for lasting disorders of consciousness, specialized multimodal consciousness assessment impacted the ethical decisions made by primary centers and helped to refine the prediction of recovery but without highly accurate individual prediction in a population with overall poor survival ...
Clément Caiazzo   +12 more
wiley   +1 more source

New Observations on a Low‐Grade Diffusely Infiltrative Tumour, SMARCB1 Mutant, Arguing for a New Tumour Type

open access: yesNeuropathology and Applied Neurobiology, Volume 52, Issue 5, October 2026.
Two new cases of low‐grade diffusely infiltrative tumour (LGDIT), SMARCB1 mutant, are described in an 18‐year‐old and a 50‐year‐old male, both with supratentorial lesions, characteristic rhabdoid histology on a myxoid‐collagenous background, and complete INI1 loss.
Alice Métais   +13 more
wiley   +1 more source

Efficacy and Safety Profile of a Rituximab, Methotrexate, and Thiotepa‐Based Regimen in Newly Diagnosed Primary CNS Lymphoma

open access: yesInternational Journal of Cancer, Volume 159, Issue 6, Page 1499-1509, 15 September 2026.
Primary central nervous system diffuse large B‐cell lymphoma (PCNS‐DLBCL) lacks an optimal first‐line induction strategy, particularly for older patients and those ineligible for intensive consolidation. In this retrospective cohort of 36 newly diagnosed patients, the rituximab + methotrexate + thiotepa (RMT) regimen as first‐line induction achieved ...
Haotian Wang   +10 more
wiley   +1 more source

Neuroradiology of the Brain

Critical Care Nursing Clinics of North America, 2016
A variety of imaging modalities are currently used to evaluate the brain. Prior to the 1970s, neurologic imaging involved radiographs, invasive procedures for spinal and carotid artery air and contrast injection, and painful patient manipulation. The brain was considered inaccessible to imaging and referred to as "the dark continent." Since then ...
exaly   +3 more sources

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