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| 磁共振弹性成像× | CT 迭代重建× | |
|---|---|---|
| 领域 | 医学影像 | 医学影像 |
| 方法族 | Process / pipeline | Process / pipeline |
| 起源年份≠ | 1995 | 1974 |
| 提出者≠ | Richard Muthupillai | Richard Gordon |
| 类型≠ | MRI-based measurement of tissue stiffness | Algorithm for tomographic image reconstruction |
| 开创性文献≠ | Muthupillai, R., Lomas, D. J., Rossman, P. J., et al. (1995). Magnetic resonance elastography by direct visualization of propagating acoustic strain waves. Science, 269(5232), 1854-1857. DOI ↗ | 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 ↗ |
| 别名≠ | MRE, elastography, tissue stiffness mapping | MBIR, ASIR, IR-CT, statistical reconstruction |
| 相关 | 5 | 5 |
| 摘要≠ | Magnetic Resonance Elastography (MRE) is a non-invasive imaging technique that measures tissue stiffness by encoding the motion of acoustic shear waves into MRI signal and calculating the elastic modulus from wave propagation patterns. Developed by Muthupillai and colleagues in 1995, MRE enables quantitative assessment of tissue mechanics, particularly useful for diagnosing liver fibrosis, cardiac dysfunction, and neurological diseases. It has emerged as a non-invasive alternative to biopsy for staging hepatic fibrosis and is expanding into other organ systems. | 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. |
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