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Abstract #2381

Real-Time, Self-Gated Spiral Flow Imaging Using Sliding-Window Phase Matching Reconstruction

Wei Feng1, Yang Xuan1, Jiani Hu1, Ewart Mark Haacke1, 2

1Radiology, Wayne State University, Detroit, MI, United States; 2Biomedical Engineering, Wayne State University, Detroit, MI, United States

A real-time, self-gated spiral flow imaging sequence using a sliding window phase matching reconstruction is proposed. The acquisition for reversed flow encodings was separated into a negative reference block and a positive acquisition block. View-shared reconstruction in each block was performed before phase contrast images were generated using a novel sliding window phase matching algorithm for self-gating. Experiments on normal volunteers and under different breathing conditions show that the proposed method can accurately quantify blood flow in real time.