Radiopharmaceuticals is a familiar and common name in the field of nuclear medicine, which is a radioactive drug used by patients for the purpose of diagnosing and treating certain diseases. . Depending on different diseases, radiopharmaceuticals may have certain characteristics to make the diagnosis more specific.

Gastrointestinal diseases are a common group of diseases, especially digestive tract diseases. Anyone with more than once in their life suffering from mild to severe even very serious digestive tract problems.

Nowadays, the application of nuclear medicine in the diagnosis and treatment of diseases, especially cancer, is becoming more and more popular. The outstanding advantages of this method are accuracy, safety and high treatment efficiency for patients.

Pediatric abdominal ultrasound is a method of examining the child's abdomen using sound waves to create images, it does not use radiation like X-rays so there is no harm. Ultrasound is very valuable in examining to evaluate and detect the cause of abdominal, pelvic and scrotal pain in children.

In the field of nuclear medicine, PET CT is considered one of the modern diagnostic imaging methods and has diagnostic value as well as monitoring the treatment process of certain diseases. Therefore, it is necessary to understand the basic principles of PET imaging to be able to apply this method accurately and effectively.

The application of physical principles, methods and techniques in medical practice and research has created a scientific and technological revolution in the entire medical field. It is applied in paraclinical examination and helps in the treatment of diseases.

There are different types of radioisotopes, each of which tends to be concentrated in different organ tissues. Therefore, the type of radioisotope used depends on the part of the body to be imaged. Gallium scans tend to focus on areas of the body with rapid cell division. Areas with high concentrations of gallium can be suggestive of infection, inflammation, injury, or cancer.

Cancer is a dangerous disease and increases the risk of death. Early examination and screening will give a good chance of treating the disease, even some cancers have a chance to be cured. Diagnostic imaging is the most important means for doctors to perform examinations and detect the risk of cancer even when there are no symptoms.

Hepatocellular carcinoma (HCC) is the sixth most common cancer diagnosis but the second leading cause of death worldwide. With the development of modern radiotherapy techniques, liver radiotherapy has now emerged as an attractive and effective treatment modality for this disease.

According to studies, PET/CT has contributed to changing the treatment strategy of more than one third of cancer diseases in the world. Over 90% of cancer patients get the right treatment decisions after PET/CT. 45-60% of cancer patients have had their treatment changed after PET/CT.

Natural or artificial radioactive decay produces radioactive isotopes. The application of radioactive isotopes in medicine has become widespread, serving diagnostic and therapeutic purposes.