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Fig. 3B —43-year-old man with pulmonary embolism. Coronal curved
reconstructions from coronal 3D fat-saturated T1-weighted gradient-echo
acquisition (4.2/1.7; flip angle, 25°; matrix, 160 x 256; slice
thickness, 2 mm after interpolation) obtained 40 sec after arterial peak of
biphasic injection of double dose of gadolinium (0.1 mL/kg body weight at 2
mL/sec followed by 0.1 mL/kg body weight at 0.8 mL/sec) shows normal
enhancement of both right (B) and left (C) external iliac and
common femoral veins (arrowheads). Nonocclusive thrombus is seen in
left common iliac vein (arrow, C). Filling defects shown on
true FISP image (A) are likely related to turbulent flow, pulsation
artifact, or both. Doppler sonography examination (not shown) depicted no
thrombus in common femoral veins. Follow-up MR examination (not shown) showed
resolution of nonocclusive thrombus in left iliac vein after anticoagulation
therapy.
