Publication date: Available online 4 August 2017
Source:Academic Radiology
Author(s): Pan-Fu Kao, Jui-Hung Weng, Yeu-Sheng Tyan, Shun-Fa Yang, Thomas Chang-Yao Tsao
Rationale and ObjectivesThe purpose of this retrospective study was to evaluate the incidence of totally implantable venous access devices, also called ports, implantation and the associated abnormalities in 2-[18F]-fluoro-2-deoxy-D-glucose (FDG) positron emission tomography-computed tomography (PET-CT) images for patients with cancer, and to determine the percentage of abnormalities identified in the original reports.Materials and MethodsThe study aimed to perform a retrospective review of all FDG PET-CT imaging in a 3-year period. Cases of port-associated abnormalities found on the FDG PET-CT images were identified and then correlated with X-ray reports and clinical treatment or follow-up.ResultsIn total, 2442 FDG PET-CT scans were retrospectively reviewed. Among them, 897 (897 of 2442, 36.7%) demonstrated port implantation. Abnormalities, including 22 port fractures (22 of 897, 2.45%), 14 malposition (1.56%), one infection (0.11%), and one embraced by a fibrin sheath or tumor (0.11%) were found. Only the infectious one had clinical symptoms. Among the 22 fractured ports, eight fractured catheters migrated and became dislodged. All of the malpositioned ports, except two in the contralateral subclavian vein, were found in the ipsilateral jugular vein. Both the port infection and the port embraced by a fibrin sheath or tumor occurred at the tips of the devices, which demonstrated FDG uptake in the mediastinal region. Only seven of the 38 (18.42%) images of port abnormalities had been identified in the original reports.ConclusionsBased on this study, we recommend that the interpretation of FDG PET-CT scans should include a checklist to record all metallic device implantations and to interpret the whole-body X-ray topography as a standard part of PET-CT image report.
http://ift.tt/2v8MX4w
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