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Fig. 1 —34-year-old man with benign pulmonary nodule. High-resolution
CT image of left lung exemplifies measurement of maximum width
(arrows) of cardiac motion artifact and area percentage of motion
artifacts in left lung. Artifact area (dotted line) in left lung was
bordered by outermost points of paracardiac area showing cardiac motion
artifacts, and its percentage to whole area of left lung at scanned level was
calculated.
