نتایج جستجو برای: retinal blood vessels

تعداد نتایج: 782281  

Journal: :J. UCS 2009
Vitoantonio Bevilacqua Lucia Cariello Marco Giannini Giuseppe Mastronardi Vito Santarcangelo Rocco Scaramuzzi Antonella Troccoli

This paper describes a comparative study between an Artificial Neural Network (ANN) and a geometric technique to detect for biometric applications,the bifurcation points of blood vessels in the retinal fundus. The first step is an image preprocessing phase to extract retina blood vessels. The contrast of the blood vessels from the retinal image background is enhanced in order to extract the blo...

Journal: :International Journal of Computer Applications 2017

Journal: :International Journal of Engineering & Technology 2018

Journal: :iranian journal of radiology 0
masoud pezeshki rad school of medicine, vascular and endovascular research center, imam reza hospital, mashhad university of medical sciences, mashhad, iran mahyar mohammadifard school of medicine, vascular and endovascular research center, imam reza hospital, birjand university of medical sciences, birjand, iran; chool of medicine, vascular and endovascular research center, imam reza hospital, birjand university of medical sciences, birjand, iran. tel: +98-5118414499, fax: +98-5612226898 hassan ravari school of medicine, vascular and endovascular research center, imam reza hospital, mashhad university of medical sciences, mashhad, iran donya farrokh school of medicine, vascular and endovascular research center, imam reza hospital, mashhad university of medical sciences, mashhad, iran emad ansaripour school of medicine, vascular and endovascular research center, imam reza hospital, mashhad university of medical sciences, mashhad, iran elena saremi school of medicine, vascular and endovascular research center, imam reza hospital, mashhad university of medical sciences, mashhad, iran

results color doppler usg had a sensitivity of 95% and specificity of 98% in diagnosis of arterial injury. positive and negative predictive values of doppler usg were 92.5% and 94.2%, respectively. conclusions color doppler usg can be used as a reliable modality with acceptable sensitivity and specificity values to screen hemodynamically stable patients with limb trauma suspicious for arterial ...

2017
Koen Eppenhof Erik Bekkers Tos T.J.M. Berendschot Josien P.W. Pluim Bart M. ter Haar Romeny

In many diseases with a cardiovascular component, the geometry of microvascular blood vessels changes. These changes are specific to arteries and veins, and can be studied in the microvasculature of the retina using retinal photography. To facilitate large-scale studies of artery/vein-specific changes in the retinal vasculature, automated classification of the vessels is required. Here we prese...

2012
M. Kalaivani

Retinal images play a major role in several applications including the ocular fundus operations and human recognition. They also play vital roles in detection of diabetes in early stages by comparing the states of retinal blood vessels. The detection of blood vessels from the retinal images is usually a tedious process. In this work a new algorithm to detect the blood vessels effectively has be...

Journal: :Investigative ophthalmology & visual science 2001
T A Drixler I H Borel Rinkes E D Ritchie F W Treffers T J van Vroonhoven M F Gebbink E E Voest

PURPOSE Antiangiogenic treatment is a promising new therapy for angiogenesis-dependent diseases. In the current study, the biologic effects on pathologic and physiological angiogenesis in the retina of angiostatin, a very potent angiogenesis inhibitor were determined. In addition, the effects of angiostatin on the growth and development of newborn mice were examined. METHODS Oxygen-induced re...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید