Molecular Imaging

A branch of medical imaging known as "Molecular Imaging" focuses on capturing images of molecules in living patients that are relevant to medicine. This contrasts with traditional techniques like histopathology for extracting molecular information from preserved tissue samples. The molecules of interest might either be those generated naturally by the body or those that a doctor injects into a patient that were created artificially in a lab. The procedure of injecting a contrast agent—such as a microbubble, metal ion, or radioactive isotope—into a patient's bloodstream and then using an imaging modality to monitor its movement within the body—such as ultrasound, MRI, CT, or PET—is the most typical example of molecular imaging used in clinical practise today. The desire to comprehend fundamental biological processes led to the development of molecular imaging in the area of radiology. The science of radiology developed molecular imaging as a non-invasive way to better comprehend basic molecular processes inside of living things. The ultimate objective of molecular imaging is the non-invasive real-time monitoring of all the biochemical activities taking on inside an organism. Cellular/molecular biology, chemistry, and medical physics are all involved in current molecular imaging research, which is focused on three main areas: 1) developing imaging methods to detect previously undetectable types of molecules; 2) increasing the number and types of contrast agents; and 3) creating functional contrast agents that provide information about the various activities that cells and tissues carry out in both health and disease.