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Abstract #0044

“Reverse Perfusion” Imaging of the Cerebral Venous System with Displacement Spectrum Imaging (DiSpect)

Ekin Karasan1, Zhiyong Zhang2, and Michael Lustig1
1University of California, Berkeley, Berkeley, CA, United States, 2Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China


Displacement Spectrum Imaging (DiSpect) is a Fourier encoding variant of Displacement Encoding with Stimulated Echoes (DENSE). DiSpect can resolve a multi-dimensional spectrum of displacements that spins exhibit between tagging and imaging. We previously demonstrated ASL-like retrospective vessel-selective perfusion imaging with DiSpect. Here, we demonstrate the versatility of DiSpect by doing the reverse; tracing how blood drains from the capillary bed through the cerebral venous system. We image two locations in the superior sagittal sinus and trace how the superior superficial veins drain into the superior sagittal sinus, in a sense measuring reverse perfusion.

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