Key result
Co-registered CT correctly identified the cause of focal FDG activity in the right atrium as benign etiologies in three patients, improving the accuracy and specificity of FDG PET.
Why the study?
Does co-registered CT improve the accuracy and specificity of FDG PET in identifying benign causes of focal activity in the right atrium?
Case Report (n=3)
Does co-registered CT improve the accuracy and specificity of FDG PET in identifying benign causes of focal activity in the right atrium?
Co-registered CT is important for improving the accuracy and specificity of FDG PET by recognizing benign causes of FDG uptake in the right atrium.
Answers are grounded in this paper and cite their sources.
Co-registered CT may aid differentiation of benign right atrial FDG uptake in select cases; hypothesis-generating and requires prospective validation.
We present the whole body FDG PET-CT images on 3 different patients with benign focal activity in the region of the right atrium. Co-registered CT correctly identified the cause of focal FDG activity as: right atrial appendage, lipomatous hypertrophy of the interatrial septum, and catheter-related activity. Although all these have been reported separately in the literature, we are presenting them together to emphasize the importance of recognizing the benign causes of FDG uptake in the region of right atrium and the role of co-registered CT in improving the accuracy and specificity of the FDG PET.
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Meka et al. (2008) conducted a case report in Focal FDG activity in the region of the right atrium (n=3). Co-registered CT with FDG PET was evaluated on Identification of benign etiologies of focal FDG activity. Co-registered CT correctly identified the cause of focal FDG activity in the right atrium as benign etiologies in three patients, improving the accuracy and specificity of FDG PET.
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