Artifacts and artifact removal in optical coherence tomographic angiography
Tristan T. Hormel, David Huang, Yali Jia
Abstract
Optical coherence tomographic angiography (OCTA) enables rapid imaging of retinal vasculature in three dimensions. While the technique has provided quantification of healthy vessels as well as pathology in several diseases, it is not unusual for OCTA data to contain artifacts that may influence measurement outcomes or defy image interpretation. In this review, we discuss the sources of several OCTA artifacts-including projection, motion, and signal reduction-as well as strategies for their removal. Artifact compensation can improve the accuracy of OCTA measurements, and the most effective use of the technology will incorporate hardware and software that can perform such correction.
Topics & Concepts
Artifact (error)Computer scienceComputer visionOptical coherence tomography angiographyProjection (relational algebra)Artificial intelligenceCoherence (philosophical gambling strategy)SoftwareTomographic reconstructionAngiographyOptical coherence tomographyRadiologyMedicineIterative reconstructionAlgorithmPhysicsProgramming languageQuantum mechanicsOptical Coherence Tomography ApplicationsRetinal Diseases and TreatmentsRetinal Imaging and Analysis