advertisement

---

1 General aspects (0)   1.1 Epidemiology (6)   1.2 Population genetics (0)   1.3 Pathogenesis (1)   1.4 Quality of life (11)   1.5 Glaucomas as cause of blindness (4)   1.6 Prevention and screening (4) 2 Anatomical structures in glaucoma (0)   2.1 Conjunctiva (3)   2.2 Cornea (10)   2.3 Sclera (4)   2.4 Anterior chamber angle (6)   2.5 Meshwork (0)     2.5.1 Trabecular meshwork (7)     2.5.2 Schlemms canal (2)     2.5.3 Scleral outlet channels (1)   2.6 Aqueous humor dynamics (0)     2.6.1 Production (0)     2.6.2 Outflow (0)       2.6.2.1 Trabecular meshwork (0)       2.6.2.2 Uveoscleral (0)     2.6.3 Compostion (6)   2.7 Episcleral veins and venous pressure (0)   2.8 Iris (6)   2.9 Ciliary body (1)   2.10 Lens (0)   2.11 Vitreous body (0)   2.12 Choroid, peripapillary choroid, peripapillary atrophy (9)   2.13 Retina and retinal nerve fibre layer (29)   2.14 Optic disc (21)   2.15 Optic nerve (0)   2.16 Chiasma and retrochiasmal central nervous system (3)   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 (4)   3.4 Molecular genetics (0)     3.4.1 Linkage studies (0)     3.4.2 Gene studies (13)   3.5 Molecular biology incl. SiRNA (15)   3.6 Cellular biology (29)   3.7 Biochemistry (4)   3.8 Pharmacology (16)   3.9 Pathophysiology (6)   3.10 Immunobiology (8)   3.11 Pharmacogenetics (0)   3.12 Proteomics (2)   3.13 In vivo imaging (0)     3.13.1 Laser Scanning (0)       3.13.1.1 Confocal Scanning Laser Ophthalmoscopy (0)       3.13.1.2 Confocal Scanning Laser Polarimetry (0)     3.13.2 Optical Coherence Tomography (0)       3.13.2.1 Anterior Segment (0)       3.13.2.2 Posterior Segment (0)     3.13.3 RGC Imaging (0)     3.13.4 Other (1)   3.20 Other (0) 4 Tissue culture of ocular cells (0) 5 Experimental glaucoma; animal models (3)   5.1 Rodent (18)   5.2 Primates (3)   5.3 Other (5) 6 Clinical examination methods (0)   6.1 Intraocular pressure measurement; factors affecting IOP (0)     6.1.1 Devices, techniques (2)     6.1.2 Fluctuation, circadian rhythms (4)     6.1.3 Factors affecting IOP (19)   6.2 Tonography, aqueous flow measurement (see also 2.6) (0)   6.3 Biomicroscopy (slitlamp) (0)     6.3.1 Anterior segment (2)     6.3.2 Posterior segment (0)   6.4 Gonioscopy (2)   6.5 Ophthalmoscopy (0)   6.6 Visual field examination and other visual function tests (0)     6.6.1 Conventional manual (0)     6.6.2 Automated (15)     6.6.3 Special methods (e.g. color, contrast, SWAP etc.) (4)   6.7 Electro-ophthalmodiagnosis (1)   6.8 Photography (0)     6.8.1 Anterior segment (1)     6.8.2 Posterior segment (3)   6.9 Computerized image analysis (0)     6.9.1 Laser scanning (0)       6.9.1.1 Confocal Scanning Laser Ophthalmoscopy (3)       6.9.1.2 Confocal Scanning Laser Polarimetry (0)     6.9.2 Optical coherence tomography (0)       6.9.2.1 Anterior (6)       6.9.2.2 Posterior (39)     6.9.5 Other (8)   6.10 Fluorescein (ICG) angiography (0)     6.10.1 Anterior segment (0)     6.10.2 Posterior segment (0)   6.11 Bloodflow measurements (22)   6.12 Ultrasonography and ultrasound biomicroscopy (2)   6.13 Provocative tests (3)   6.19 Telemedicine (0)   6.20 Progression (5)   6.30 Other (9) 8 Refractive errors in relation to glaucoma (0)   8.1 Myopia (3)   8.2 Hypermetropia (0)   8.3 Contact lenses (0)   8.4 Refractive surgical procedures (0)   8.5 Other (0) 9 Clinical forms of glaucomas (0)   9.1 Developmental glaucomas (0)     9.1.1 Congenital glaucoma, Buphthalmos (8)     9.1.2 Juvenile glaucoma (11)     9.1.3 Syndromes of Axenfeld, Rieger, Peters, aniridia (2)     9.1.4 Other (0)   9.2 Primary open angle glaucomas (0)     9.2.1 Ocular hypertension (7)     9.2.2 Other risk factors for glaucoma (2)     9.2.3 Open angle glaucoma with elevated IOP (1)     9.2.4 Normal pressure glaucoma (5)   9.3 Primary angle closure glaucomas (0)     9.3.1 Acute primary angle closure glaucoma (pupillary block) (4)     9.3.2 Chronic primary angle closure glaucoma (pupillary block) (1)     9.3.3 Plateau iris syndrome (1)     9.3.4 Primary angle closure suspect (0)     9.3.5 Primary angle closure (5)     9.3.10 Other (0)   9.4 Glaucomas associated with other ocular and systemic disorders (0)     9.4.1 Steroid-induced glaucoma (4)     9.4.2 Glaucomas associated with disorders of the cornea, conjunctiva, sclera (0)       9.4.2.1 Iridocorneal endothelial syndrome (ICE, incl. irisatrophy) (0)       9.4.2.2 Posterior polymorphous dystrophy (0)       9.4.2.3 Fuchs' endothelial dystrophy (0)       9.4.2.5 Other (0)     9.4.3 Glaucomas associated with disorders of the iris and ciliary body (0)       9.4.3.1 Pigmentary glaucoma (1)       9.4.3.5 Other (0)     9.4.4 Glaucomas associated with disorders of the lens (0)       9.4.4.1 Exfoliation syndrome (25)       9.4.4.2 Glaucomas associated with cataracts (1)       9.4.4.3 Glaucomas associated with lens dislocation (0)       9.4.4.5 Other (1)     9.4.5 Glaucomas associated with disorders of the retina, choroid and vitreous (0)       9.4.5.1 Neovascular glaucoma (2)       9.4.5.5 Other (2)     9.4.6 Glaucomas associated with inflammation, uveitis (8)     9.4.7 Glaucomas associated with ocular trauma (1)     9.4.8 Glaucomas associated with intraocular tumors (2)     9.4.9 Glaucomas associated with elevated episcleral venous pressure (0)       9.4.10 Glaucomas associated with hemorrhage (4)     9.4.11 Glaucomas following intraocular surgery (0)       9.4.11.1 Ciliary block (malignant) glaucoma (2)       9.4.11.2 Glaucomas in aphakia and pseudophakia (8)       9.4.11.3 Epithelial, fibrous, and endothelial proliferation (0)       9.4.11.4 Glaucomas associated with corneal surgery (1)       9.4.11.5 Glaucomas associated with vitreoretinal surgery (5)     9.4.15 Glaucoma in relation to systemic disease (30)     9.4.20 Other (2) 10 Differential diagnosis e.g. anterior and posterior ischemic optic neuropathy (4) 11 Medical treatment (0)   11.1 General management, indication (5)   11.2 Cholinergic drugs (0)   11.3 Adrenergic drugs (0)     11.3.1 Epinephrine (0)     11.3.2 Thymoxamine, dapiprazole (0)     11.3.3 Apraclonidine, brimonidine (2)     11.3.4 Betablocker (0)     11.3.5 Other (0)   11.4 Prostaglandins (9)   11.5 Carbonic anhydrase inhibitors (0)     11.5.1 Systemic (0)     11.5.2 Topical (0)   11.6 Osmotic treatment (0)   11.7 Treatment of bloodflow (0)   11.8 Neuroprotection (17)   11.9 Gene therapy (0)   11.13 Combination therapy (0)     11.13.1 Betablocker and pilocarpine (0)     11.13.2 Betablocker and carbon anhydrase inhibitor (0)     11.13.3 Betablocker and brimonidine (0)     11.13.4 Betablocker and prostaglandin (2)     11.13.5 Other (0)   11.14 Investigational drugs; pharmacological experiments (8)   11.15 Other drugs in relation to glaucoma (11)   11.16 Vehicles, delivery systems, pharmacokinetics, formulation (9)   11.17 Cooperation with medical therapy e.g. persistency, compliance, adherence (4)   11.20 Other (4) 12 Surgical treatment (0)   12.1 General management, indication (4)   12.2 Laser iridotomy (0)   12.3 Laser iridoplasty (1)   12.4 Laser trabeculoplasty and other laser treatment of the angle (2)   12.7 Surgical iridectomy (0)   12.8 Filtering surgery (0)     12.8.1 Without tube implant (15)     12.8.2 With tube implant or other drainage devices (19)     12.8.3 Non-perforating (3)     12.8.4 Using laser (0)     12.8.5 Other (0)     12.8.10 Woundhealing antifibrosis (10)     12.8.11 Complications, endophthalmitis (8)   12.9 Trabeculotomy, goniotomy (8)   12.10 Cyclodestruction (2)   12.11 Cyclodialysis (1)   12.12 Cataract extraction (0)     12.12.1 Intracapsular (0)     12.12.2 Extracapsular (0)     12.12.3 Phacoemulsification (5)   12.14 Combined cataract extraction and glaucoma surgery (0)     12.14.1 Intracapsular (0)     12.14.2 Extracapsular (0)     12.14.3 Phacoemulsification (3)   12.15 Capsulotomy (0)   12.16 Vitrectomy (3)   12.17 Anesthesia (0)   12.20 Other (1) 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 (4) 15 Miscellaneous (23)

---

Abstract #78230 Published in IGR 19-4

A Review on the Extraction of Quantitative Retinal Microvascular Image Feature

Kipli K; Hoque ME; Lim LT; Mahmood MH; Sahari SK; Sapawi R; Rajaee N; Joseph A
Computational and mathematical methods in medicine 2018; 2018: 4019538

---

Digital image processing is one of the most widely used computer vision technologies in biomedical engineering. In the present modern ophthalmological practice, biomarkers analysis through digital fundus image processing analysis greatly contributes to vision science. This further facilitates developments in medical imaging, enabling this robust technology to attain extensive scopes in biomedical engineering platform. Various diagnostic techniques are used to analyze retinal microvasculature image to enable geometric features measurements such as vessel tortuosity, branching angles, branching coefficient, vessel diameter, and fractal dimension. These extracted markers or characterized fundus digital image features provide insights and relates quantitative retinal vascular topography abnormalities to various pathologies such as diabetic retinopathy, macular degeneration, hypertensive retinopathy, transient ischemic attack, neovascular glaucoma, and cardiovascular diseases. Apart from that, this noninvasive research tool is automated, allowing it to be used in large-scale screening programs, and all are described in this present review paper. This paper will also review recent research on the image processing-based extraction techniques of the quantitative retinal microvascular feature. It mainly focuses on features associated with the early symptom of transient ischemic attack or sharp stroke.

Department of Electrical and Electronics Engineering, University Malaysia Sarawak (UNIMAS), 94300 Kota Samarahan, Kuching, Malaysia.

Full article

---

Classification:

6.9.5 Other (Part of: 6 Clinical examination methods > 6.9 Computerized image analysis)
6.11 Bloodflow measurements (Part of: 6 Clinical examination methods)
2.13 Retina and retinal nerve fibre layer (Part of: 2 Anatomical structures in glaucoma)

---

• ← Previous
• Next →

---