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Fig. 2B Acute pulmonary embolism (PE) in 78-year-old woman (same patient as
shown in Figs. 1A,
1B,
1C,
1D, and
1E). Curved coronal reformatted
CT image shows central nonobstructive filling defect (arrow). CT also
shows more proximal nonobstructive thrombus (arrowhead) within main
pulmonary artery, more easily seen on CT than on angiogram (A).