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Producing a phase contrast MR image from a partial Fourier data acquisition
Producing a phase contrast MR image from a partial Fourier data acquisition
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机译:通过部分傅立叶数据采集产生相衬MR图像
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摘要
A cardiac triggered, fast gradient-recalled echo pulse sequence is used to acquire a partial Fourier image data set during a single breath-hold. The image data is velocity encoded and a velocity image is produced by zero-filling and Fourier transforming the zero-filled data set. A separate magnitude image is produced by performing a homodyne reconstruction on the partial Fourier image data set. Anatomic information, such as artery size, is obtained from the magnitude image and combined with velocity information from the velocity image to measure blood flowing through an artery.
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