Figure 5.

Comparison of in vivo motion gating signals obtained from the example shown in Figure 4. Squared linear correlation with the simultaneously acquired respiratory bellows signal (RESP) was r² = 0.36 for KC vs. r² = 0.87 for ZIP. For illustrative purposes, all signals are scaled and shifted to the [0, 1] range, and only a fraction of the total waveform (10000 TRs or about 42 sec) is shown