Methoden vergleichen

	OCT-Angiographie	CT Iterative Reconstruction
Fachgebiet	Medizinische Bildgebung	Medizinische Bildgebung
Familie	Process / pipeline	Process / pipeline
Entstehungsjahr	2012	1974
Urheber	Yali Jia	Richard Gordon
Typ	Optical imaging technique for vasculature visualization	Algorithm for tomographic image reconstruction
Wegweisende Quelle	Jia, Y., Tan, O., Tokayer, J., et al. (2012). Split-spectrum amplitude-decorrelation angiography with optical coherence tomography. Optics Express, 20(4), 4710-4725.	Gordon, R., Bender, R., Herman, G. T. (1974). Algebraic reconstruction techniques (ART) for three-dimensional electron microscopy and X-ray photography. Journal of Theoretical Biology, 29(3), 471-481.
Aliasnamen	OCTA, OCT-A	MBIR, ASIR, IR-CT, statistical reconstruction
Verwandt	5	5
Zusammenfassung	Optical Coherence Tomography Angiography (OCTA) is a non-invasive imaging technique that visualizes the microvasculature in the retina and choroid by detecting motion contrast from flowing blood. Developed by Jia and colleagues in 2012, OCTA uses repeated OCT scans of the same tissue location to identify blood flow based on the decorrelation signal. It has become a critical diagnostic tool in ophthalmology for detecting retinal and macular diseases without requiring fluorescein injection.	CT Iterative Reconstruction (IR) is a computational technique that reconstructs tomographic images from raw X-ray projection data by iteratively refining an estimate of tissue attenuation until it matches the measured projections. Developed from algebraic reconstruction techniques pioneered by Gordon in 1974, iterative reconstruction has revolutionized clinical CT by enabling high-quality images at reduced radiation dose. Variants such as Adaptive Statistical Iterative Reconstruction (ASIR) and Model-Based Iterative Reconstruction (MBIR) are now standard on modern CT scanners.