Spatiotemporal reconstruction of a moving vascular pulse wave from a plurality of lower dimensional angiographic projections
An angiographic and spatio-temporal technology, applied in the directions of projection reproduction, cardiac catheterization, image enhancement, etc., can solve the problem of not being able to obtain dynamic information
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[0046] Angiographic cardiovascular phenomena can be visualized by processing angiographic data acquired at a frequency faster than the heart rate (eg, twice the Nyqvist rate or higher). This phenomenon (including physiological coherence) is dynamic, transient and periodically recurring, and can be visualized as vascular pulse waves. Physiological coherence occurs when different spatial regions of the vascular bed maintain a relatively constant phase difference over multiple cardiac cycles. As described herein, angiographic cardiovascular phenomena can be used to reconstruct high-order spatial dimension objects from low-order image projections and visualize vessel pulse waves.
[0047] The following example illustrates angiographic physiological coherence with human cerebrovascular data. However, angiographic physiological coherence is not limited to this example and can be found in various other organs with vascular components or other systems with suitable vasculature. Furt...
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