منابع مشابه
Artifacts in optical coherence tomography.
Optical coherence tomography (OCT) is now an integral part of management for numerous retinal diseases for diagnosis, treatment planning and follow up. OCT interpretation must involve the understanding of the associated artifacts. These artifacts can mislead physicians to wrong diagnosis or inappropriate management. This review article discusses the various types of artifacts in OCT scans obtai...
متن کاملImage Artifacts in Optical Coherence Tomography Angiography.
PURPOSE To describe image artifacts of optical coherence tomography (OCT) angiography and their underlying causative mechanisms. To establish a common vocabulary for the artifacts observed. METHODS The methods by which OCT angiography images are acquired, generated, and displayed are reviewed as are the mechanisms by which each or all of these methods can produce extraneous image information....
متن کاملVitreous opacities causing artifacts in optical coherence tomography angiography
Case 1 A 51-year-old diabetic visited us for diabetic retinopathy screening. Left eye fundus examination was limited due to asteroid hyalosis (AH) [Fig. 1a]. Optical coherence tomography (OCT) of left eye demonstrated asteroid bodies with posterior vitreous detachment (PVD) [Fig. 1b]. Left eye OCTA revealed multiple black areas in all slabs resembling capillary drop out areas [Fig. 1c-e]. The b...
متن کاملMotion artifacts in optical coherence tomography with frequency-domain ranging.
We describe results of theoretical and experimental investigations of artifacts that can arise in spectral-domain optical coherence tomography (SD-OCT) and optical frequency domain imaging (OFDI) as a result of sample or probe beam motion. While SD-OCT and OFDI are based on similar spectral interferometric principles, the specifics of motion effects are quite different because of distinct signa...
متن کاملClinical Applications of Optical Coherence Tomography in Ophthalmology
Assessment of the peripapillary nerve fiber layer and macular thickness can be determined in ophthalmology using optical coherence tomography (OCT). Decreased nerve fiber layer thickness and macular ganglion cell thickness in optic nerve ischemia have been correlated with visual field loss. OCT allows deep optic nerve head evaluation which helps understand pathophysiology of diseases. Furtherm...
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ژورنال
عنوان ژورنال: Saudi Journal of Ophthalmology
سال: 2014
ISSN: 1319-4534
DOI: 10.1016/j.sjopt.2014.02.010