Beta- Probe and Surgery in GEP NET: Evaluation of a New Probe

Studio Esplorativo Monocentrico Non Controllato, in Aperto, Volto a Sviluppare e Valutare l'Applicazione di Una Tecnica Innovativa di Rimozione Radioguidata Dei Tumori Neuroendocrini Gastro-entero-pancreatici

Radioguided surgery (RGS) with beta- radioisotopes is a novel approach focused on developing a new probe which, detecting electrons and operating with low background, provides a clearer delineation of the margins of lesions with low radiation exposition for surgeons.

To validate this procedure, ex vivo specimens of tumours expressing somatostatin receptors, as small-intestine neuroendocrine (SI-NET), will be tested

Small Intestinal neuroendocrine patients, with a positive Ga-68-DOTATOC PET/CT, will receive a small amount of beta- radiopharmaceutical (Y-90-DOTATOC), and then operated, as clinical indicated.

Tissue samples will be tested ex-vivo with a beta-probe prototype

Inclusion Criteria:

• SI NET patients, Ga-68-DOTATOC PET/CT positive, proposed for surgery

Exclusion Criteria:

• negative PET/CT; pregnancy