قارن الطرق

	إعادة البناء التكراري في التصوير المقطعي المحوسب	تصوير الأوعية المقطعي البصري التوافقي (OCT Angiography)
المجال	التصوير الطبي	التصوير الطبي
العائلة	Process / pipeline	Process / pipeline
سنة النشأة	1974	2012
صاحب الطريقة	Richard Gordon	Yali Jia
النوع	Algorithm for tomographic image reconstruction	Optical imaging technique for vasculature visualization
المصدر التأسيسي	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.
الأسماء البديلة	MBIR, ASIR, IR-CT, statistical reconstruction	OCTA, OCT-A
ذات صلة	5	5
الملخص	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.