Results 71 to 80 of about 4,372 (233)

Impact of 1024‐Matrix Size on Perforating Artery Visualisation in Cerebral Computed Tomography Angiography Using a 64‐Slice CT Scanner

open access: yesJournal of Medical Radiation Sciences, EarlyView.
This study investigated whether using a larger image matrix (1024 × 1024 pixels instead of 512 × 512) improves the visibility of tiny brain arteries on CT scans performed with standard 64‐slice scanners. While physical image quality measurements remained unchanged, the larger matrix provided finer digital sampling of blood vessel structures, resulting ...
Hokuto Nagumo   +5 more
wiley   +1 more source

Effects of metformin on retinoblastoma growth in vitro and in vivo [PDF]

open access: yes, 2014
Recent studies suggest that the anti-diabetic drug metformin may reduce the risk of cancer and have anti-proliferative effects for some but not all cancers. In this study, we examined the effects of metformin on human retinoblastoma cell proliferation in
BRODOWSKA, KATARZYNA   +12 more
core   +2 more sources

Pre‐operative transcranial Doppler ultrasound assessment of cerebral collateral circulation in children undergoing veno‐arterial extracorporeal membrane oxygenation or cardiac surgery

open access: yesJournal of Medical Radiation Sciences, EarlyView.
A pre‐cannulation survey of the circle of Willis (CoW) using transcranial Doppler (TCD) ultrasound was implemented to assess cerebral collateral circulation in children undergoing VA ECMO or cardiac surgery with cervical cannulation. The technique, in use since 2019, employs high‐end ultrasound platforms to assess brain morphology, haemorrhage and ...
Tristan Reddan   +3 more
wiley   +1 more source

Distribution of Choroidal Thickness and Choroidal Vessel Dilation in Healthy Japanese Individuals

open access: yesOphthalmology Science, 2021
Purpose: To report fundamental epidemiologic data for choroidal parameters such as choroidal thickness and index of choroidal vascularity in Japanese individuals and to evaluate their correlations with age, sex, systemic parameters, and other ocular ...
Yuki Mori, MD   +18 more
doaj   +1 more source

Fibroblast growth factor/fibroblast growth factor receptor system in angiogenesis. [PDF]

open access: yes, 2005
Fibroblast growth factors (FGFs) are a family of heparin-binding growth factors. FGFs exert their pro-angiogenic activity by interacting with various endothelial cell surface receptors, including tyrosine kinase receptors, heparan-sulfate proteoglycans ...
Aigner   +253 more
core   +1 more source

Early choroidal structure and choroidal vascularity index change after carotid stenting

open access: yesPhotodiagnosis and Photodynamic Therapy, 2022
We aimed to evaluate changes in subfoveal choroidal thickness (SFCT) and choroidal vascularity index (CVI) in the first postoperative day and month in patients with severe internal carotid artery (ICA) stenosis after ICA stenting.The patients who diagnosed with severe ICA stenosis and was performed ICA stenting were included in the study. Patients with
Gonul Karatas, Durusoy   +4 more
openaire   +2 more sources

Retinal imaging in pre‐eclamptic pregnancy: systematic review

open access: yesUltrasound in Obstetrics &Gynecology, EarlyView.
ABSTRACT Objective To explore potential changes in retinal structures in pregnant women with pre‐eclampsia (PE). Methods This was a systematic review of the literature on retinal assessment in pregnancies complicated by PE. PubMed, EMBASE via Ovid, The Cochrane Library and Scopus databases were searched in July 2025 using an a‐priori‐designed protocol ...
D. Kitmiridou   +3 more
wiley   +1 more source

Retinal and choroidal changes in steroid-associated central serous chorioretinopathy

open access: yesInternational Journal of Retina and Vitreous, 2018
Background To evaluate the retinal and choroidal alterations in steroid-associated central serous chorioretinopathy (CSC) in comparison to idiopathic CSC. Methods In this retrospective cohort study, swept source optical coherence tomography scans of eyes
Vikas Ambiya   +5 more
doaj   +1 more source

Choroidal Vascular Hyperpermeability and Punctate Hyperfluorescent Spot in Choroidal Neovascularization

open access: yesInvestigative Opthalmology & Visual Science, 2015
To evaluate the prevalence of choroidal vascular hyperpermeability and punctate hyperfluorescent spots in eyes with choroidal neovascularization (CNV).This retrospective, observational study included 382 eyes with typical exudative AMD (97 eyes), polypoidal choroidal vasculopathy (PCV, 163 eyes), retinal angiomatous proliferation (RAP, 37 eyes), or ...
Jae Hui, Kim   +3 more
openaire   +2 more sources

Choroidal vascular hyperpermeability patterns in central serous chorioretinopathy correlate with microperimetry: CERTAIN study report 4

open access: yesActa Ophthalmologica, EarlyView.
Abstract Purpose This report evaluates the association of three distinct leakage patterns of choroidal vascular hyperpermeability (CVH) on indocyanine green angiography (ICGA), previously correlated with disease chronicity, with retinal sensitivity measured by microperimetry in central serous chorioretinopathy (CSC): unifocal indistinct signs of ...
Jennifer M. Chang‐Wolf   +7 more
wiley   +1 more source

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