Results 91 to 100 of about 1,475,259 (262)

Arterial Spin‐Labeling MRI at the Cortical‐CSF Interface: A Novel Biomarker in Alzheimer Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background/Objective Arterial spin‐labeling (ASL) MRI can measure perfusion signal adjacent to CSF spaces and may provide information regarding CSF‐adjacent water transport physiology. We developed an automated pipeline to extract cortical‐CSF interface (IF) perfusion for comparison between Alzheimer disease (AD) and cognitively normal ...
Mona Asghariahmadabad   +22 more
wiley   +1 more source

An Updated List of Species Used in Tree-Ring Research

open access: yes, 1993
During the past 100 years, researchers have investigated the potential of hundreds of tree and shrub species for use in applications of tree-ring research.
Grissino-Mayer, Henri D.
core   +3 more sources

White Matter and Perivascular Imaging Changes in Alzheimer's Disease and Cerebral Amyloid Angiopathy

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Peak‐width of skeletonized mean diffusivity (PSMD) and diffusion tensor imaging–analysis along the perivascular space (DTI‐ALPS), reflecting white matter integrity and glymphatic function, are altered in Alzheimer's disease (AD).
Debina Laishram   +3 more
wiley   +1 more source

The impact of Kommerell diverticulum resection on patient outcomes: A 21-year comparative analysis of surgical techniques for vascular ringsCentral MessagePerspective

open access: yesJTCVS Open
Objective: Kommerell diverticulum is an embryologic remnant of the dorsal fourth aortic arch. It often presents as part of vascular rings with a right dominant arch. Historically, these have been treated by dividing the ligamentum arteriosum.
Julian C. Marsh, BS   +4 more
doaj   +1 more source

Risk of Retinopathy Associated with Long‐Term Use of Hydroxychloroquine in Patients with Rheumatic Diseases: A Systematic Review and Meta‐Analysis

open access: yesArthritis Care &Research, EarlyView.
Objective We aimed to estimate the prevalence and cumulative incidence of hydroxychloroquine retinopathy (HCQ‐R) and its risk factors among patients receiving long‐term HCQ with rheumatic diseases through a systematic review and meta‐analysis of observational studies that used spectral‐domain optical coherence tomography (SD‐OCT) for screening ...
Narsis Daftarian   +4 more
wiley   +1 more source

Imaging features of double aortic arch shown by multidetector computed tomography angiography

open access: yesAnnals of Pediatric Cardiology, 2010
We present a three-dimensional reconstructed image of vascular ring in a 2.5-month-old patient, which was obtained using multidetector computed tomography (MDCT).
Jeeyani Hetal   +3 more
doaj  

Case report: Diagnosis of a double aortic arch in the primary care setting

open access: yesJournal of Family Medicine and Primary Care
A double aortic arch is a rare congenital heart anomaly not typically diagnosed in adults. It can present with nonspecific symptoms including dysphagia, a cough, and hoarseness which can lead to a delay in diagnosis or misdiagnosis.
Mary Chick
doaj   +1 more source

[Vascular rings].

open access: yesBoletin medico del Hospital Infantil de Mexico, 1976
Anomalies in the development of aortic arches may cause the formation of a vascular ring around trachea and esophagus, responsible for compression symptoms. The most frequently found vascular rings are the double aortic arch, the right arch with left ligament and the retroesophageal right subclavian artery.
E L, Flamand   +2 more
openaire   +1 more source

Vascular Targeted Agents for the Treatment of Angiosarcoma [PDF]

open access: yes, 2013
Background: Angiogenesis is the process of new blood vessel formation, and is regulated by angiogenic growth factors including vascular endothelial growth factor (VEGF). Angiosarcomas are rare, aggressive vascular tumours.
P J Woll (16226153)   +5 more
core  

Characteristics and Outcomes of Male Participants in a Multicenter Longitudinal Australian Study Cohort

open access: yesArthritis Care &Research, EarlyView.
Objective The aim of this study was to determine the differences in demographic, serologic, and clinical characteristics between male and female patients with systemic sclerosis (SSc) in an Australian cohort. Methods This was a retrospective observational study using data from the Australian Scleroderma Cohort Study.
Emily Lin   +14 more
wiley   +1 more source

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