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Abstract #0472

Venous Oxygenation Mapping using Fourier-Transform based Velocity-Selective Pulse Trains

Wenbo Li1,2, Peter van Zijl1,2, and Qin Qin1,2
1Radiology Department, Johns Hopkins University School of Medicine, Baltimore, MD, United States, 2Kirby Image Center, Kennedy Krieger Institute, Baltimore, MD, United States

A T2-oximetry method is proposed to map the venous oxygenation by using Fourier-transform based velocity-selective inversion plus non-selective inversion to null the arterial blood signal while using Fourier-transform based velocity-selective saturation to suppress the tissue signal. Compared to previous schemes, the proposed method has the benefit of high SNR and insensitivity to arterial transit delays. Using this method, the venous oxygenation values obtained from two volunteers at 3T are similar between gray matter and white matter and comparable to the values measured globally.

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