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. Author manuscript; available in PMC: 2007 Aug 6.
Published in final edited form as: Magn Reson Med. 2005 Jan;53(1):159–168. doi: 10.1002/mrm.20331

FIG. 7.

FIG. 7

Comparison between the respiratory self-gating signal derived using a smaller ROI of 50 × 50 mm2 (a) and the respiratory self-gating signal derived using a larger ROI of 120 × 120 mm2 covering the entire heart (b). Notice the similarity between the two signals in this example.