What is PET / CT?

• PET / CT is an imaging device that is a combination of positron emission tomography and computed tomography. PET / CT broke new ground in medical imaging and was named “invention of the year” in the field of medicine by TIME magazine in 2000.
• PET is a nuclear medicine method that has been used for years and gives a 3-dimensional view of the physiological processes in the body. By combining PET device with CT, it provides anatomical and physiological information in a single session and increases the accuracy of the examination.
• It is 2-fluoro-2-deoxy D-glucose (radiolabeled sugar molecule), which is shortly known as FDG (fluorodeoxy glucose) for PET / CT examination. FDG administered intravenously; Like tumor cells, it accumulates in cells with high metabolic activity because it proliferates rapidly.
• For PET / CT, patients must fast for 6 hours before the test. Patients can take drugs other than insulin or oral antidiabetic drugs. Image quality may be suboptimal in diabetic patients due to the competition of endogenous glucose with FDG. Therefore, before FDG injection, blood glucose level is determined and it is generally not recommended to perform tests at blood glucose levels above 180 mg / dL. PET / CT imaging is started 1 hour after FDG is injected.
• The vast majority of PET / CT applications are in the field of oncology. Lung cancers, lymphoma, malignant melanoma, head and neck tumors, breast cancer, colorectal cancers, esophagus and stomach tumors, gynecological cancers, mesothelioma, primary bone tumors and metastases of unknown primary origin are used in the Diagnosis, Staging, Restaging and Response to Treatment.
• With FDG PET / CT examination, it causes 25-60% change in staging of patients before surgery (if diagnosed by biopsy) and / or after and determining the treatment to be applied. This change plays an important role in determining the treatment method to be applied to patients. For example, patients who are deemed to be inoperable can be operated (approximately 1/3 of the change after PET / CT) or the patient is not operated unnecessarily, etc.
• FDG PET / CT examination plays an important role in imaging the living cells in the remaining tissue after the treatment and in deciding whether to continue the treatment or not, as the FDG PET / CT examination will accumulate in the living cells.
• Another use of PET / CT is to determine the amount of viable but hiberne tissue after myocardial infarction. PET / CT is considered the gold standard in this indication.
• PET / CT also has uses in the field of neurology such as detecting epileptic focus and early diagnosis of Alzheimer’s disease in order to evaluate the chances of surgery in refractory epilepsies.

Hospitals where the application is located:

• İAÜ VM Medical Park Florya
• Istinye University Hospital Liv Hospital Bahçeşehir
• Bahçeşehir University Hospital Medical Park Göztepe
• VM Medical Park Bursa
• VM Medical Park Samsun
• VM Medical Park Kocaeli
• Medical Park Bahcelievler
• Medical Park Elazig
• Medical Park Antalya
• Medical Park Gebze
• Medical Park Gaziantep
• Medical Park İzmir



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