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1 General aspects (0)   1.1 Epidemiology (5)   1.2 Population genetics (1)   1.3 Pathogenesis (10)   1.4 Quality of life (6)   1.5 Glaucomas as cause of blindness (3)   1.6 Prevention and screening (4) 2 Anatomical structures in glaucoma (0)   2.1 Conjunctiva (1)   2.2 Cornea (9)   2.3 Sclera (1)   2.4 Anterior chamber angle (2)   2.5 Meshwork (0)     2.5.1 Trabecular meshwork (6)     2.5.2 Schlemms canal (2)     2.5.3 Scleral outlet channels (0)   2.6 Aqueous humor dynamics (0)     2.6.1 Production (0)     2.6.2 Outflow (3)       2.6.2.1 Trabecular meshwork (0)       2.6.2.2 Uveoscleral (0)     2.6.3 Compostion (5)   2.7 Episcleral veins and venous pressure (0)   2.8 Iris (0)   2.9 Ciliary body (1)   2.10 Lens (0)   2.11 Vitreous body (0)   2.12 Choroid, peripapillary choroid, peripapillary atrophy (3)   2.13 Retina and retinal nerve fibre layer (6)   2.14 Optic disc (10)   2.15 Optic nerve (1)   2.16 Chiasma and retrochiasmal central nervous system (1)   2.17 Stem cells (0)   2.20 Other (0) 3 Laboratory methods (0)   3.1 Microscopy (3)   3.2 Electron microscopy (1)   3.3 Immunohistochemistry (10)   3.4 Molecular genetics (0)     3.4.1 Linkage studies (13)     3.4.2 Gene studies (6)   3.5 Molecular biology incl. 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tube implant (8)     12.8.2 With tube implant or other drainage devices (11)     12.8.3 Non-perforating (5)     12.8.4 Using laser (0)     12.8.5 Other (0)     12.8.10 Woundhealing antifibrosis (16)     12.8.11 Complications, endophthalmitis (8)   12.9 Trabeculotomy, goniotomy (1)   12.10 Cyclodestruction (4)   12.11 Cyclodialysis (0)   12.12 Cataract extraction (0)     12.12.1 Intracapsular (0)     12.12.2 Extracapsular (0)     12.12.3 Phacoemulsification (3)   12.14 Combined cataract extraction and glaucoma surgery (0)     12.14.1 Intracapsular (0)     12.14.2 Extracapsular (0)     12.14.3 Phacoemulsification (10)   12.15 Capsulotomy (0)   12.16 Vitrectomy (0)   12.17 Anesthesia (1)   12.20 Other (2) 13 Therapeutic prognosis and outcome (0)   13.1 Prognostic factors (0)   13.2 Outcome (0)     13.2.1 IOP (0)     13.2.2 Visual field (0)       13.2.2.1 Progression (0)       13.2.2.2 Improvement (0)     13.2.3 Other (0) 14 Costing studies; pharmacoeconomics (0) 15 Miscellaneous (6)

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Abstract #12010 Published in IGR 7-1

Limitations of color Doppler sonography in the imaging of ocular vessels

Ustymowicz A; Obuchowska I; Krejza J; Mariak Z
European Journal of Ophthalmology 2004; 14: 584-587

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PURPOSE: To describe a case where detection of blood flow in the central retinal artery and the central retinal vein was limited by an artifact evoked by the optic disc drusen. METHODS Case report. RESULTS: During color Doppler sonography, examination of optic disc drusen may generate an artifact - the so-called twinkling artifact - which can simulate blood flow and make evaluation of the central retinal vessels impossible. CONCLUSIONS: Twinkling artifact does not allow evaluation of color Doppler sonography in the imaging of ocular vessels.

Dr. A. Ustymowicz, Department of Radiology Bialystok Medical Academy, Bialystok, Poland. ambau@yahoo.com

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Classification:

6.11 Bloodflow measurements (Part of: 6 Clinical examination methods)

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