Clinique Générale - Beaulieu

tel. +41 22 839 55 00

Clinique des Grangettes

tel. +41 22 305 03 33

Oncology investigations

PET/CT of the whole body using Fluoro-DeoxyGlucose (F18-FDG)

You must have fasted for at least 6 hours. Food and sugared drinks are prohibited. We recommend that you drink about 1 litre of water in the 2 hours preceding your appointment. You must avoid sports and smoking in the 6 hours preceding your examination.

If you are diabetic please advise the secretariat when making an appointment.
You must have fasted for at least 4 hours. The examination will preferably be arranged for late morning.
Eat a normal breakfast early in the morning (7am) and inject the usual dose of insulin.
Continue taking your oral antidiabetic treatment.

The process
The examination involves 2 stages in one session:

1st stage
Intravenous injection of the radiopharmaceutical after glycemia verification. The injection is painless, non-toxic and does not cause allergies.
2nd stage
Acquisition of the imaging. You must remain motionless during the examination.

During the interval between the stages (1 hr) you will rest in an armchair. You must avoid being cold, talking or walking around in the institute.

Main clinical indications

  • Staging of a tumour
  • Looking for tumour recurrence
  • Therapeutic monitoring of the tumours
  • Radiotherapy planning

The imaging is based on the uptake of a radiopharmaceutical (Fluoro-deoxyglucose) by the tumour cells, whose proliferation requires an increase in the glucose energy consumption provided by an increase of the expression of the carrier proteins of the glucose and of the intracellular enzymes supporting the glucose consumption (glycolysis). The resulting increase in glucose uptake by the tumour cells will be visualized in the form of an increased activity on the PET. There is a variation in the uptake of the radiopharmaceutical depending on the type of tumour. Tumours presenting a high uptake tend to be more aggressive and to grow more rapidly.

Lymphoma of the neck and of the thorax before and after treatment with chemotherapy

Localized right lung cancer

Right pulmonary nodule suspected of being cancerous

Localized cancer of the bladder

Localized cancer of the left breast

Localised cancer of the left thigh before and after surgery

Axillary sentinel node suspected to be metastatic of cancer of the right breast