Background-Suppressed MR Venography of the Brain Using Magnitude Data: A High-Pass Filtering Approach

Figure 2

The mIP of the STD-scaled BS-MRV (512×384×50, interpolated to 1024×768×100) processed with the iH (top row) and iF (bottom row) filters at different filter sizes. At the top row, the numbers following the label “iH” indicate the filter size 2𝐻_𝑥×2𝐻_𝑦. At the bottom row, the numbers following the label “iF” indicate the filter size 2𝑅_𝑥×2𝑅_𝑦. In some of the peripheral regions of the brain, as indicated by thick long arrows, the visibility of the veins was obscured by the scalp.

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