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Coronal slices are shown at the same level from four studies done on the same mouse. The lower images show the left lung from each image magnified by 3×. (a) and (e) are from the ungated study. (b) and (f) were obtained with ventilatory synchronization; (c) and (g) were obtained with ventilatory synchronization and cardiac gating; (d) and (h) were obtained on the same animal after sacrifice with an anesthetic overdose.
