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| Pemetaan Kerentanan Kuantitatif× | Angiografi OCT× | |
|---|---|---|
| Bidang | Pengimejan Perubatan | Pengimejan Perubatan |
| Keluarga | Process / pipeline | Process / pipeline |
| Tahun asal≠ | 2015 | 2012 |
| Pengasas≠ | Yong Wang | Yali Jia |
| Jenis≠ | Quantitative MRI contrast mechanism | Optical imaging technique for vasculature visualization |
| Sumber perintis≠ | 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 ↗ | Jia, Y., Tan, O., Tokayer, J., et al. (2012). Split-spectrum amplitude-decorrelation angiography with optical coherence tomography. Optics Express, 20(4), 4710-4725. DOI ↗ |
| Alias | QSM, susceptibility-weighted imaging | OCTA, OCT-A |
| Berkaitan | 5 | 5 |
| Ringkasan≠ | 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. | 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. |
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