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| CT Iterative Reconstruction× | DTI-Traktographie× | |
|---|---|---|
| Fachgebiet | Medizinische Bildgebung | Medizinische Bildgebung |
| Familie | Process / pipeline | Process / pipeline |
| Entstehungsjahr≠ | 1974 | 1999 |
| Urheber≠ | Richard Gordon | Peter Basser |
| Typ≠ | Algorithm for tomographic image reconstruction | Fiber tracking from diffusion MRI |
| Wegweisende Quelle≠ | 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. link ↗ | Basser, P. J., Mattiello, J., LeBihan, D. (1994). Estimation of the effective self-diffusion tensor from the NMR spin echo. Journal of Magnetic Resonance, Series B, 103(3), 247-254. DOI ↗ |
| Aliasnamen≠ | MBIR, ASIR, IR-CT, statistical reconstruction | Diffusion tensor tractography, White matter tractography, Fiber tracking |
| Verwandt | 5 | 5 |
| Zusammenfassung≠ | 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. | Diffusion Tensor Imaging Tractography (DTI tractography) is a non-invasive neuroimaging technique that maps white matter fiber bundles in the brain by tracking the three-dimensional diffusion of water molecules along axons. Pioneered by Basser, Mori, and Conturo in the 1990s, DTI tractography reveals the structural connectivity of the brain, enabling visualization of major pathways (corpus callosum, arcuate fasciculus, corticospinal tract) and assessment of fiber integrity. It is widely used in neurosurgical planning, neurological disease assessment, and brain connectivity research. |
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