Everyone who has suffered from cancer knows the importance of early diagnosis and effective treatment. However, the situation in the country is absurd: there is not enough money for medicine, and modern treatment with effective medicines is paid for by the patient or depends on the availability of public donations, therefore high-tech diagnostics are mostly available in private medical institutions.
PET / CT allows you to assess the extent of the tumor lesion of the patient and correctly determine the stage of the disease. Information on how far malignant cells have spread is extremely important for the choice of treatment tactics. Examination of patients undergoing radiotherapy and chemotherapy, or undergoing surgery, is necessary to monitor the results of prescribed treatment - PET / CT scan will show how the tumor changes, will allow to see new foci and relapses.
A full-body PET / CT scan is performed for:
- Detection of metastases and primary tumor foci;
- Determine the extent of the tumor process;
- Evaluation of the effectiveness of treatment;
- Differentiation of benign and malignant tumors;
- Planning tactics of therapy.
In PET-Technology, diagnostics with 18-FDG is carried out for the following diseases: malignant skeletal tumors, melanoma, Hodgkin's disease and non-Hodgkin's lymphomas, soft tissue sarcomas, thyroid cancer, breast, cervix, thymus, testicles, lung glands, ovaries, stomach and intestines.
The test scan takes place in two stages:
The introduction of the drug. The patient is given an intravenous injection. The procedure is painless, sometimes accompanied by a sensation of heat. The drug is distributed in all cells within an hour. Important: After the introduction of the drug you need to lie quietly, do not move, do not talk, do not read - 18-FDG accumulates in actively working muscles, which can affect the results. Drink clean water to improve cell imaging.
PET/CT scan. The patient is placed in a tomograph, where a computed tomography of the whole body is first performed, followed by a positron emission tomography of the whole body. In some cases, a contrast agent is additionally introduced, which improves the visualization of the hollow organs - the intestines and vessels. The software of the device superimposes CT scans on PET scans, as a result, structural, physiological and metabolic changes in the tissues can be assessed.
PET / CT does not last more than an hour, but in the center you will spend from 2 to 5 hours - this includes preliminary preparation, documentation, and rest after the procedure. Before the examination, you need to change into comfortable clothes and remove all products containing metal.
During the rest period it is important to maintain immobility, this contributes to the correct distribution of the radiopharmaceutical and, as a result, to a qualitative display of the pathological focus. To obtain a good quality of the study, it is necessary to remain stationary during the entire scan time (the study can last from 20 to 40 minutes).
After completing the procedures, do not leave the territory of the diagnostic lab in Delhi without the permission of the medical staff, as it may sometimes be necessary to repeat the scan.