Comparison of Diagnostic Performance of an Algorithm and a High Definition Classical Iterative Algorithm Positron Emission Tomography (PET) to 18Fluoro-deoxy-glucose (18FDG) in the Evaluation of Axillary Lymph Node Invasion of Breast Tumors

Comparison of Diagnostic Performance of an Algorithm and a High Definition Classical Iterative Algorithm Positron Emission Tomography (PET) to 18Fluoro-deoxy-glucose (18FDG) in the Evaluation of Axillary Lymph Node Invasion of Breast Tumors

The primary endpoint of this study is to show that this algorithm in high definition is superior to the classical algorithm in the diagnosis of lymph node metastases.

Inclusion Criteria:

• Informed consent and signed by the patient
• Age ≥ 18 years
• Breast tumor for which the therapeutic indication for surgery has from the outset: breast surgery (conservative or radical) associated with a conventional axillary dissection
• Proof of infiltrating ductal carcinoma histology
• No known metastasis
• No cons-indication to anesthesia.

Exclusion criteria:

• History of neoadjuvant therapy
• Patients with invasive lobular carcinoma
• Indication of the use of sentinel node (if invasive carcinoma uni-centric, ≤ 2 cm in diameter, without palpable lymphadenopathy (N0))
• Diabetes is not controlled by conventional treatment (blood glucose> 1.8 g / l)
• Inability to capital
• Patients who are pregnant or nursing or of childbearing potential and not using adequate contraception
• Persons deprived of their liberty
• Major subject of a measure of legal protection or unable to consent
• Refusal to participate