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| Quantitative Susceptibility Mapping× | PET動態モデリング× | |
|---|---|---|
| 分野 | 医用画像 | 医用画像 |
| 系統 | Process / pipeline | Process / pipeline |
| 提唱年≠ | 2015 | 1983 |
| 提唱者≠ | Yong Wang | Christoph Patlak |
| 種類≠ | Quantitative MRI contrast mechanism | Mathematical framework for tracer kinetics in PET imaging |
| 原典≠ | Wang, Y., Liu, T. (2015). Quantitative susceptibility mapping (QSM): Decoding MRI data for a tissue magnetic biomarker. Magnetic Resonance in Medicine, 73(1), 82-101. DOI ↗ | Patlak, C. S., Blasberg, R. G., Fenstermacher, J. D. (1983). Graphical evaluation of blood-to-brain transfer constants from multiple-time uptake data. Journal of Cerebral Blood Flow & Metabolism, 3(1), 1-7. DOI ↗ |
| 別名≠ | QSM, susceptibility-weighted imaging | PET pharmacokinetics, Dynamic PET, PET compartmental modeling |
| 関連 | 5 | 5 |
| 概要≠ | Quantitative Susceptibility Mapping (QSM) is a post-processing technique that converts MRI phase data into quantitative susceptibility values, enabling direct visualization and measurement of tissue magnetic properties. Developed by Wang, Liu, and colleagues, QSM transforms phase shifts caused by differences in magnetic susceptibility between tissues into tissue-specific biomarkers. It has revolutionized the sensitivity of MRI to iron, calcium, and other paramagnetic and diamagnetic substances, making it valuable in neurodegenerative disease diagnosis and tissue characterization. | PET kinetic modeling is a quantitative analysis technique that tracks the temporal behavior of radioactive tracers in tissue to extract physiological parameters such as blood flow, metabolic rate, and receptor density. Established by Patlak, Logan, and Gunn in the 1980s and 1990s, kinetic modeling transforms raw PET time-activity curves into interpretable biological measures. It is widely used in neurology, oncology, and cardiology to assess disease severity, treatment response, and regional tissue function. |
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