The Hospital Sírio-Libanês Nuclear Medicine Service, set up in 1979, uses high technology, which enables diagnostic examinations with extraordinary technical and image quality to be studied in several areas of medicine. In oncology, for example, it enables the early detection and monitoring of therapeutic responses to several types of cancer.

One of the pieces of equipment that is responsible for the speed and accuracy of the examinations is the PET/CT, which with a coincidence circuit and attenuation correction, enables highly detailed studies to be carried out with positron emitting substances such as fluorine-18.

The radioactive substances used in the Nuclear Medicine examinations, known as radiopharmaceuticals, are metabolized by the organ, whose functions are to be studied. Minimal quantities of these radiopharmaceuticals are used, so that no adverse reactions are caused.

Nuclear medicine is also used for some types of treatment such as hyperthyroidism and carcinoma metastases.