Sammenlign metoder

	Iterativ rekonstruksjon av CT-bilder	OCT-angiografi
Fagfelt	Medisinsk bildediagnostikk	Medisinsk bildediagnostikk
Familie	Process / pipeline	Process / pipeline
Opprinnelsesår	1974	2012
Opphavsperson	Richard Gordon	Yali Jia
Type	Algorithm for tomographic image reconstruction	Optical imaging technique for vasculature visualization
Opprinnelig kilde	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.	Jia, Y., Tan, O., Tokayer, J., et al. (2012). Split-spectrum amplitude-decorrelation angiography with optical coherence tomography. Optics Express, 20(4), 4710-4725.
Alias	MBIR, ASIR, IR-CT, statistical reconstruction	OCTA, OCT-A
Relaterte	5	5
Sammendrag	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.	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.