Fig. 1

Optimal respiratory gating improves detection of small pancreatic and ampullary lesions. A [18F]FDG PET/CT scan reconstructed according to EANM guidelines (a, c) and with optimal respiratory gating (b, d), demonstrating markedly improvement of a small ampullary lesion in a 45-year old male who presented with jaundice. Endoscopic retrograde cholangiopancreatography (ERCP) showed a polyp-like lesion located at the ampulla of Vater, which was histologically characterized as metaplastic mucosa