Two New Types of MRI Contrast Agents

The experimental results of superparamagnetic iron oxide contrast agent and electronic neutral metal complex of manganese contrast medium were observed by magnetic resonance T2 imaging and T1-weighted imaging,respectively.The data measured from the images of rat’s liver in vivo show that the two types of contrast media are able to change remarkably the T2 and T1 of tissue of rat liver,respectively.The experimental results have high value as a reference to research of MRI contrast agents and the clinic application.