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Association of Vascular 18F-FDG Uptake with Vascular Calcification

Mark P.S. Dunphy, DO1, Alvin Freiman, MD2, Steven M. Larson, MD1 and H. William Strauss, MD1

1 Nuclear Medicine Service, Department of Radiology, Memorial Sloan-Kettering Cancer Center, New York, New York
2 Department of Cardiology, Memorial Sloan-Kettering Cancer Center, New York, New York



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  		FIGURE 1. (Left) Coronal 18F-FDG PET image of upper body. (Center) Intensity adjustment based on blood-pool activity. (Right) CT fused with adjusted PET image shows inflammation in wall of ascending aorta (arrow).

 


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  		FIGURE 2. Plot illustrates distribution of 18F-FDG, in arterial tree, as percentage of cases; 95% confidence intervals are shown. PA = proximal aorta; AA = abdominal aorta; DTA = descending thoracic aorta; LMA = left main coronary artery; LCX = circumflex coronary artery; LAD = left anterior descending coronary artery; RCA = right coronary artery.

 


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  		FIGURE 3. Coronal CT (left) and PET (right) images show intense mural inflammation in AAA.

 


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  		FIGURE 4. (Left to right) PET and PET/CT images show foci of inflammation in right common carotid artery (arrows), from lateral (left) and right oblique (right) projections. Two days later, patient suffered a right-sided cerebrovascular accident.

 


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  		FIGURE 5. Fused PET/CT images show contiguous transaxial slices through heart. Inflammation (arrowheads) present proximal and distal to a calcified LAD (arrow). A tumor sits adjacent to esophagus.

 




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