What are Nanoparticles and How Do They Work in Imaging?
Nanoparticles are tiny particles, typically ranging from 1 to 100 nanometers in size, which can be engineered to carry imaging agents. These particles can be designed to target specific tissues or molecules within the cardiovascular system. For example, gold nanoparticles can be used for CT imaging, while superparamagnetic iron oxide nanoparticles (SPIONs) are utilized in MRI to enhance contrast.