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Diagnositc and Prognostic Role of 68GA-DOTATATE PET in Patients with Neuroendocrine Tumors

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Introduction: Octreoscan (OS) is currently the gold standard for diagnosis of somatostatin receptor positive NET but it is limited by a lower spatial resolution and physiological uptake noises. DOTATATE is a somatostatin analogue, radiolabelled with 68Ga and adapted for PET imaging.

Aim(s): To evaluate diagnostic performance and prognostic role of 68Ga-DOTATATE PET (DP) in NET.

Materials and methods: Fifty-one patients with NET (40 sporadic, 17 MEN-1) of different origin were enrolled. DP was performed in all cases by acquiring whole body studies 40-60 min after the radioligand i.v. injection (74-111 MBq). OS was also performed in 27/51 patients using injection of Indium-111-DTPA-Phe1-OSreotide (120-200 MBq). Examination results were rated considering histology, CT/MR examination and clinical follow-up.

Conference: 9th Annual ENETSConcerence (2012)

Presenting Author:

Authors: Marciello F, Faggiano A, Aloi L, Caracò C, Ramundo V,

Keywords: 68-GA-DOTATATE PET, octreoscan, diagnosis, prognosis,

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