Feasibility of Detecting Pulmonary Embolism Using Noncontrast MRI

Figure 1

59-year-old male with a saddle pulmonary embolus.

(a) Axial CT image demonstrates pulmonary embolism extending into the left and right pulmonary arteries (arrow)

(b) Axial gradient echo cine image from the MRI obtained 42 hours later demonstrates the embolism as a linear hypointense filling defect within the right and left pulmonary arteries (arrow)