Feasibility of Detecting Pulmonary Embolism Using Noncontrast MRI

Figure 2

47-year-old female with left pulmonary artery and bilateral lower lobe segmental pulmonary artery emboli.

(a) Axial CT image demonstrates pulmonary embolism within the left pulmonary artery (arrow)

(b) Axial bright blood image from the MRI obtained 27 hours later demonstrates the embolism as a filling defect within left pulmonary artery (arrow)

(c) Axial CT image demonstrates pulmonary emboli within the bilateral lower lobe segmental pulmonary artery branches (arrows)

(d) Axial bright blood image from the MRI obtained 27 hours later fails to demonstrate the segmental pulmonary emboli seen on the CT