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Fig. 3C —Transaxial phantom images. First (A), second (B), and third (C) phase MR images obtained without prospective navigator correction. Without correction, distance between two syringes increases from 24 to 30 to 60 mm in the first, second, and third phases, and transaxial scan levels in first (A) and third (C) phases are clearly different. Image during movement (B) is substantially degraded.