Results 1 to 10 of about 3,073 (215)
Retinal vessel oxygen saturation and vessel diameter in retinitis pigmentosa [PDF]
Acta Ophthalmologica, 2014 AbstractPurposeTo assess retinal vessel oxygen saturation and retinal vessel diameter in retinitis pigmentosa.MethodsA retinal oximeter (Oxymap ehf., Reykjavik, Iceland) was used to measure retinal vessel oxygen saturation and vessel diameter in ten patients with retinitis pigmentosa (RP) (mean age 49 years, range 23–71 years).
Einar Stefansson, Thor Eysteinsson
exaly +3 more sources
Xylem vessel type and structure influence the water transport characteristics of Panax notoginseng.
PLoS ONE, 2023 Panax notoginseng plays a very important role in medicinal and economic value. The restriction imposed by the hydraulic pathway is considered to be the main limitation on the optimal growth state of Panax notoginseng.
Tianyu Xu +6 more
doaj +2 more sources
Frontiers in Cardiovascular Medicine, 2022 AimThe aim of this study is to provide evidence on how use of standardized intravascular ultrasound (IVUS) use impacts stent size choice in the setting of chronic total occlusion (CTO) percutaneous coronary intervention (PCI) compared to visual ...
Recha Blessing +18 more
doaj +1 more source
Genetic Regulation of Vessel Morphology in Populus
Frontiers in Plant Science, 2021 During secondary growth, forest trees can modify the anatomy of the wood produced by the vascular cambium in response to environmental conditions. Notably, the trees of the model angiosperm genus, Populus, reduce the risk of cavitation and hydraulic ...
F. Daniela Rodriguez-Zaccaro +4 more
doaj +1 more source
Retinal Blood Vessel Analysis Using Optical Coherence Tomography (OCT) in Multiple Sclerosis
Diagnostics, 2023 Background: Both greater retinal neurodegenerative pathology and greater cardiovascular burden are seen in people with multiple sclerosis (pwMS). Studies also describe multiple extracranial and intracranial vascular changes in pwMS.
Nicholas Young +5 more
doaj +1 more source
Associations between macular retinal vasculature and severity of idiopathic epiretinal membrane
BMC Ophthalmology, 2023 Background To demonstrate the associations between the morphology of macular retinal vasculature and disease severity of idiopathic epiretinal membrane (ERM).
Yun Hsia, Yi-Ting Hsieh
doaj +1 more source
Vessel diameter–stem diameter scaling across woody angiosperms and the ecological causes of xylem vessel diameter variation [PDF]
New Phytologist, 2012 Summary Variation in angiosperm vessel diameter is of major functional significance. In the light of recent models predicting optimal vessel taper given resistance imposed by conductive path length, we tested the prediction that plant size should predict vessel diameter, with dryland plants having narrower vessels for their stem sizes.
Mark E, Olson, Julieta A, Rosell
openaire +2 more sources
Scientific Reports, 2023 In this study, the role of sac section area and parent vessel diameter on the hemodynamic feature of the blood flow in selected internal carotid artery (ICA) aneurysms is comprehensively investigated.
Mehdi Fattahi +4 more
doaj +1 more source
Variability of Measurement of Retinal Vessel Diameters [PDF]
Ophthalmic Epidemiology, 2013 To examine the effects of various cardiovascular, ocular, and lifestyle factors on retinal vessel diameters over short periods of time.Subjects were invited to have photographs of their retina taken at each of three study visits. The same eye was photographed each time.
Charles D, McCanna +7 more
openaire +2 more sources
Bio-heat transfer in cancer treatment using cryo-freezing method
Journal of Thermal Engineering, 2021 The objective of this study is to investigate the effect of bio-heat transfer from large blood vessels on freezing region size of tumorous liver tissue using cryo-freezing method.
Erkan KIZILIRMAK, Oguz TURGUT
doaj +1 more source