Results 211 to 220 of about 83,492 (257)
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Retinal Telangiectasis and Proliferation of the Retinal Vessels in a Family
Ophthalmologica, 2010A 20-year-old woman presented with a marked proliferative retinopathy of the entire central region of the retina in both eyes, with veil-like epiretinal gliovascular membranes and isolated spots of haemorrhaging. The outer region of the retina was unremarkable. Her 49-year-old mother showed perimacular telangiectases in both eyes.
Schmidt, Dieter, Soriano, José Manuel
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In vivo micropuncture of retinal vessels
Graefe's Archive for Clinical and Experimental Ophthalmology, 1993Micropuncture has proven to be a valuable tool for the local study of vascular parameters in many organ systems; however, it has not been applied to the study of the circulation of the retina. We report here our extension of micropuncture techniques [4] to use in the intact retina of the anesthetized cat.
M R, Glucksberg, R, Dunn, C P, Giebs
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Retinal Vessels and Retinopathy of Prematurity
Archives of Ophthalmology, 2008link_to_subscribed_fulltext
Cheung, N, Liew, G, Jie, JW, Tien, YW
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RETINAL VESSELS WHITENING IN RETINITIS PIGMENTOSA
RetinaPurpose: To characterize retinal vessel whitening (RVW) in retinitis pigmentosa (RP). Methods: Single-center cross-sectional study. Review of clinical notes of clinically confirmed patients with RP was performed followed by grading ultra-widefield imaging.
Shaden H. Yassin +8 more
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Joining retinal vessel segments
2008 8th IEEE International Conference on BioInformatics and BioEngineering, 2008A new method is introduced for joining vessel segments together to form a vessel graph. Using a reference image set from the Sunderland Eye Infirmary, we analysed the retinal bifurcation geometry, to define measurements for the geometrical junction features. These distinctive measurements are employed to resolve the junctions.
Bashir Al-Diri +3 more
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In vivo cannulation of retinal vessels
Graefe's Archive for Clinical and Experimental Ophthalmology, 1987In vivo cannulation of retinal blood vessels has not been reported but would be useful in exploring local vascular parameters and new treatment modalities. We developed a microsurgical technique for cannulating rabbit and cat retinal vessels, using glass micropipettes with curved shanks made from standard capillary tubing.
B E, Allf, E, de Juan
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Retinal Vessel Dehydrogenase Enzymes
Archives of Ophthalmology, 1964The isolation of the retinal vessels by the trypsin digestion technique 1 allows histochemical studies on this structure. Recently, histochemical studies of several enzyme groups, including the dehydrogenase enzymes, have been reported. 2 The present study is a more detailed study of these dehydrogenase enzymes in the rat, cat, and dog with nitro-blue ...
R, LEVENE, G, HORTON, R, EINAUGLER
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Visualization of Retinal Blood Vessels
2021The retina offers a unique opportunity to directly visualize blood vessels in vivo noninvasively. Over the past few decades, several new imaging techniques have been adapted to study the retinal vasculature in the laboratory in animal models and in the clinic in human subjects.
Wankun, Xie +4 more
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Probabilistic retinal vessel segmentation
SPIE Proceedings, 2007Optic fundus assessment is widely used for diagnosing vascular and non-vascular pathology. Inspection of the retinal vasculature may reveal hypertension, diabetes, arteriosclerosis, cardiovascular disease and stroke. Due to various imaging conditions retinal images may be degraded.
Chang-Hua Wu, Gady Agam
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A Snake for Retinal Vessel Segmentation
2007This paper presents an innovative methodology to detect the vessel tree in retinal angiographies. The automatic analysis of retinal vessel tree facilitates the computation of the arteriovenous index, which is essential for the diagnosis of a wide range of eye diseases.
Lucia Espona +3 more
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