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| Funktionelles Ultraschall× | OCT-Angiographie× | |
|---|---|---|
| Fachgebiet | Medizinische Bildgebung | Medizinische Bildgebung |
| Familie | Process / pipeline | Process / pipeline |
| Entstehungsjahr≠ | 2011 | 2012 |
| Urheber≠ | Mickael Tanter | Yali Jia |
| Typ≠ | High-framerate doppler imaging for hemodynamics | Optical imaging technique for vasculature visualization |
| Wegweisende Quelle≠ | Macé, E., Montaldo, G., Trenholm, S., et al. (2011). Functional ultrasound imaging of the brain. Nature Methods, 8(8), 662-664. 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 ↗ |
| Aliasnamen≠ | fUS, doppler ultrasound, ultrafast ultrasound | OCTA, OCT-A |
| Verwandt | 5 | 5 |
| Zusammenfassung≠ | Functional Ultrasound (fUS) is a high-framerate Doppler ultrasound technique that dynamically maps blood flow and hemodynamic changes in vivo with millisecond temporal resolution. Pioneered by Tanter, Macé, and colleagues in the 2010s, fUS enables real-time imaging of microvascular perfusion in the brain and other organs. By combining ultrafast acquisition (1000-5000 frames per second) with Doppler processing, fUS reveals functional activity (hemodynamic changes during stimulation or behavior) and vascular networks with unprecedented spatiotemporal detail. | 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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