Image quality evaluation in a modern PET system: impact of new reconstructions methods and a radiomics approach.

The present work investigates the influence of different biological and physical parameters on image quality (IQ) perception of the abdominal area in a modern PET scanner, using new reconstruction algorithms and testing the utility of a radiomics approach. Scans of 112 patients were retrospectively included. Images were reconstructed using both OSEM + PSF and BSRM methods, and IQ of the abdominal region was subjectively evaluated.

F-FDG PET/CT in a patient with atypical presentation of cardiac angiosarcoma.

Primary cardiac or pericardial tumors are infrequent, metastatic involvement being more common. Cardiac angiosarcoma is a rare primary malignant tumor of mesenchymal origin. It entails a poor prognosis mostly due to frequent metastases at the time of diagnosis, as well as low response to onco-specific treatments.