Puncture guidance using NMR and CT imaging

Guided puncture with nuclear magnetic and CT imaging generally involves looking at the body structure first, marking the surface of the body and planning the injection route. There are no images in the process of puncture.

Mri and CT imaging can obtain relatively high resolution imaging results in most of the time, which is of great help in planning the injection route. However, the problem is that there is no image in the process of puncture, where the needle has entered, and whether it is really moving according to the planned route. In many cases, it is still unclear. Therefore, from time to time, the doctor needs to push the patient back to CT or MRI for another look, and then continue to work. CT and MRI are generally large equipment, which are usually a certain distance away from the operating room. In this way, the efficiency of transporting patients back and forth will inevitably be reduced.

It is said that some CT has been miniaturized and can be directly placed in the operating room. However, if the needle can always be seen in real time during the puncture process, and the Angle and depth of the needle can be adjusted timely according to the image display, it will obviously be of greater help to the operating doctor.