Nuclear medicine is the use of radionuclides in medicine for diagnosis, staging of disease, therapy and monitoring the response of a disease process. It is also a powerful translational tool in the basic sciences, such as biology, in drug discovery and in pre-clinical medicine. Developments in nuclear medicine are driven by advances in this multidisciplinary science that includes physics, chemistry, computing, mathematics, pharmacology and biology.

Nuclear medicine

• Also known as nuclide imaging
• Steps: – Inject radio tracers into the body – The radio tracers undergo radioactive decay and generate gammy rays – A camera detect gamma rays from the radio tracer after a certain time
• Different physiological functions are imaged by using different radio tracers
• X-ray projection and tomography: – X-ray transmitted through a body from an outside source to a detector
• Nuclear medicine: – Gamma rays emitted from within a body – Emission computed tomography – Two popular method:

• Positron Emission Tomography (PET)
• Single photon emission computed tomography (SPECT)

Nuclear medicine is the study and utilization of radioactive compounds in medicine to image and treat human disease. It relies on the ‘tracer principle’ first espoused by Georg Karl von Hevesy in the early 1920s. The tracer principle is the study of the fate of compounds in vivo using minute amounts of radioactive tracers which do not elicit any pharmacological response by the body to the tracer. Today, the same principle is used to study many aspects of physiology, such as cellular metabolism, DNA (deoxyribonucleic acid) proliferation, blood flow in organs, organ function, receptor expression and abnormal physiology, externally using sensitive imaging devices. Larger amounts of radionuclides are also applied to treat patients with radionuclide therapy, especially in disseminated diseases such as advanced metastatic cancer, as this form of therapy has the ability to target abnormal cells to treat the disease anywhere in the body.

Journal of Medical Physics and Applied Sciences is an academic journal and aims to publish most complete and reliable source of information on the discoveries and current developments in the mode of original articles, review articles, case reports, short communications, etc. in all areas of the field and making them freely available through online without any restrictions or any other subscriptions to researchers worldwide. The journal selects the articles to be published with a single bind, peer review system, following the practices of good scholarly journals. It supports the open access policy of making scientific research accessible to one and all. 

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