Heart Analysis in GATED-PET in Patients Having a Gallium-68-DOTATOC PET/CT Exam for Oncology Indication

Inclusion Criteria: Persons who have received complete information on the organization of the research and who have signed the informed consent and: * Age ≥ 18 years old. * Having read and understood the information document. * Affiliated to a social security scheme. Person for whom a 68Ga-DOTATOC PET/CT exam is requested as part of the diagnostic or pre-therapeutic assessment of a neuroendocrine tumour. Exclusion Criteria: Person with * Hypersensitivity during previous use of 68Ga-DOTATOC * Impossibility of performing a PET-CT (patient agitated, confused, etc.). * History of heart disease, * Severe arrhythmia that does not allow the PET synchronized with the ECG * Severe renal insufficiency (GFR \<30 ml/min/1.73 m2) * Treated with a somatostatin analogue. * Cushing's syndrome * Pregnant woman, likely to be or breastfeeding * Adult subject to a legal protection measure (guardianship, curators, legal safeguard) * Person of legal age unable to express their consent * Person deprived of liberty by a judicial or administrative decision * Person, subject to psychiatric care under articles L. 3212-1 and L. 3213-1