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18F-FDG PET of Pulmonary Embolism

Conrad Wittram1 and James A. Scott2

1 Division of Thoracic Radiology, Massachusetts General Hospital, Founders 202, 55 Fruit St., Boston, MA 02114.
2 Division of Nuclear Medicine, Massachusetts General Hospital, Boston, MA.


Figure 1
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  		Fig. 1A —55-year-old man with history of colon cancer and incidental finding of acute pulmonary embolism. Previous scan had shown no residual tumor. Contrast-enhanced CT scan shows acute pulmonary embolism (arrow) in lobar artery of left lower lobe.

 

Figure 2
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  		Fig. 1B —55-year-old man with history of colon cancer and incidental finding of acute pulmonary embolism. Previous scan had shown no residual tumor. Obtained at same time as A,18F-FDG PET scan shows focal increased uptake of FDG at site of acute pulmonary embolism (arrow).

 

Figure 3
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  		Fig. 1C —55-year-old man with history of colon cancer and incidental finding of acute pulmonary embolism. Previous scan had shown no residual tumor. FDG PET scan obtained 11 weeks before A and B shows normal left hilar FDG PET activity.

 

Figure 4
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  		Fig. 1D —55-year-old man with history of colon cancer and incidental finding of acute pulmonary embolism. Previous scan had shown no residual tumor. Integrated PET/CT scan shows focal increase in FDG uptake over acute pulmonary embolism (arrow) in A. Normal mediastinal uptake over heart (arrowheads) is evident.

 

Figure 5
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  		Fig. 2A —62-year-old man with history of lung cancer and incidental finding of acute pulmonary embolism. Previous scan had shown no residual tumor. Contrast-enhanced CT scan shows acute pulmonary embolism (arrow) in lobar artery of right lower lobe.

 

Figure 6
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  		Fig. 2B —62-year-old man with history of lung cancer and incidental finding of acute pulmonary embolism. Previous scan had shown no residual tumor. Obtained at same level as A, 18F-FDG PET scan shows curvilinear increase in FDG uptake at site of acute pulmonary embolism (arrow).

 

Figure 7
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  		Fig. 2C —62-year-old man with history of lung cancer and incidental finding of acute pulmonary embolism. Previous scan had shown no residual tumor. FDG PET scan obtained 26 weeks before B shows normal right hilar FDG PET activity.

 

Figure 8
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  		Fig. 2D —62-year-old man with history of lung cancer and incidental finding of acute pulmonary embolism. Previous scan had shown no residual tumor. Integrated PET/CT image of A and B shows curvilinear increase in FDG uptake over acute pulmonary embolism (arrow) within lobar artery of right lower lobe. Normal left ventricular uptake (arrowhead) is evident.

 

Figure 9
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  		Fig. 2E —62-year-old man with history of lung cancer and incidental finding of acute pulmonary embolism. Previous scan had shown no residual tumor. Contrast-enhanced CT scan obtained at level more caudal than A shows acute pulmonary embolism (arrow) in posterior basal segment artery of right lower lobe.

 

Figure 10
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  		Fig. 2F —62-year-old man with history of lung cancer and incidental finding of acute pulmonary embolism. Previous scan had shown no residual tumor. FDG PET scan obtained at same level as E shows focal increase in FDG uptake at site of acute segmental pulmonary embolism (arrow).

 

Figure 11
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  		Fig. 3A —59-year-old man with deep venous thrombosis. Contrast-enhanced CT scan obtained at level of common femoral veins shows bilateral deep venous thrombosis (arrows).

 

Figure 12
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  		Fig. 3B —59-year-old man with deep venous thrombosis. Obtained at same level as A, 18F-FDG PET scan shows bilateral focal increase in FDG uptake at sites of acute thrombosis (arrows).

 

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