Results 151 to 160 of about 4,106,222 (239)

High‐Resolution IVIM MRI Characterizes Diffusion–Perfusion Properties of the Parasagittal Dura

open access: yesNMR in Biomedicine, Volume 39, Issue 11, November 2026.
Parasagittal dura demonstrates intermediate diffusion and elevated perfusion‐related IVIM metrics compared with brain parenchyma, reflecting its unique microfluidic environment at the CSF–dura interface. IVIM imaging of the parasagittal dura provides a rapid, noncontrast MRI approach to assess dural fluid transport and may offer a potential imaging ...
Yi‐Jui Liu   +8 more
wiley   +1 more source

Comprehensive Ophthalmic Evaluation of Clinically Normal Rhesus Monkeys (Macaca mulatta): Selected Ophthalmic Diagnostic Tests, Tear‐Film Biochemistry and Serum Correlations, Conjunctival Microbiota and Ophthalmic Artery Haemodynamics

open access: yesVeterinary Medicine and Science, Volume 12, Issue 6, November 2026.
Comprehensive ophthalmic evaluation of clinically healthy rhesus monkeys identified baseline values for selected ophthalmic diagnostic tests, including STT‐1, TBUT, IOP, PFL, blink rate and ophthalmic artery haemodynamics assessed by CDI. Tear‐film biochemical analyses, serum correlations and conjunctival microbiota characterization further expanded ...
Ali Davari   +7 more
wiley   +1 more source

The pulsatility index and the resistive index in renal arteries. Associations with long-term progression in chronic renal failure

open access: yes, 1997
The pulsatility index (PI) and the resistive index (RI) are used as pulsed-wave Doppler measurements of downstream renal artery resistance. PI and RI have been found to correlate with renal vascular resistance, filtration fraction and effective renal ...
Petersen, J R   +5 more
core   +1 more source

First Trimester Screening for Preterm Preeclampsia in the United Kingdom: A Cost‐Effectiveness Analysis

open access: yesBJOG: An International Journal of Obstetrics &Gynaecology, Volume 133, Issue 12, Page 2178-2187, November 2026.
ABSTRACT Objective To evaluate the cost‐effectiveness of the Fetal Medicine Foundation (FMF) strategy, compared with the National Institute for Health and Care Excellence (NICE) strategy, for first‐trimester screening for preterm preeclampsia (PE) in the United Kingdom (UK). Design Cost‐effectiveness analysis.
Mohammad A. Ani   +4 more
wiley   +1 more source

Wasteosomes accumulate in periventricular white matter hyperintensities and exhibit complex relationships with mixed pathology, sclerotic index, and perivascular space

open access: yesBrain Pathology, Volume 36, Issue 6, November 2026.
In a mixed diagnostic cohort of pathologically diagnosed Alzheimer's disease, cerebrovascular disease, mixed pathology, and control tissue, we connected the histopathological wasteosome profile in periventricular (PV) brain sections to 7T FLAIR‐MRI confirmed PV white matter hyperintensities (WMHs), vascular stenosis and perivascular space size ...
Nikita Ollen‐Bittle   +7 more
wiley   +1 more source

Recent advances in polyendocrine metabolic ovarian syndrome, formerly polycystic ovary syndrome, with emphasis on endocrine and metabolic dysfunction and cardiovascular risk

open access: yesJournal of Internal Medicine, Volume 300, Issue 5, Page 590-609, November 2026.
Abstract Polyendocrine metabolic ovarian syndrome (PMOS), previously known as polycystic ovary syndrome, affects 10%–13% of women of reproductive age and remains underdiagnosed despite its substantial health burden. The introduction of the new PMOS nomenclature in 2026 reflects a fundamental shift in understanding the condition as a lifelong endocrine ...
Maria Forslund   +5 more
wiley   +1 more source

Cortisol Dynamics at High Temporal Resolution For Wearable Biosensor Research

open access: yesAdvanced Sensor Research, Volume 5, Issue 10, October 2026.
High‐frequency cortisol profiling reveals that endocrine responses depend strongly on both stressor type and the individual. Circadian sampling shows a consistent morning‐to‐evening decline, while cold exposure elicits delayed rises and exercise and cognitive challenges produce divergent trajectories.
Munia Ferdoushi   +3 more
wiley   +1 more source

Pulsatility index (ultrasound)

open access: yes, 2019
David Carroll   +2 more
openaire   +1 more source

Vascular drivers of cerebrospinal fluid movement and enlarged perivascular spaces

open access: yesAlzheimer's &Dementia, Volume 22, Issue 10, October 2026.
Abstract Perivascular spaces (PVSs) facilitate cerebrospinal fluid flow and waste clearance, which are critical for maintaining brain homeostasis. Enlarged PVSs (ePVSs) are an emerging marker of cerebral small vessel disease and are implicated in protein accumulation, neurodegeneration, and cognitive decline.
James D. LeFevre   +2 more
wiley   +1 more source

Glymphatic System Dysfunction and its Associated Factors in Wilson's Disease: A DTI–ALPS Study

open access: yesBrain and Behavior, Volume 16, Issue 10, October 2026.
Glymphatic function, assessed by DTI‐ALPS index, was impaired in neurological Wilson's disease compared with hepatic phenotype and controls. Age, AST, and UWDRS‐I score independently predicted dysfunction, linking neurodegeneration, liver injury, and altered glymphatic activity. ABSTRACT Background Wilson's disease (WD) is a genetic disorder of copper (
Ling Zhu   +14 more
wiley   +1 more source

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