How is liver cancer radiotherapy to return a responsibility

summary

If early detection of liver cancer, or can do an operation + chemotherapy, liver cancer in life is a lot of patients, and the treatment of liver cancer is liver cancer radiotherapy, take this opportunity to give you some experience of liver cancer radiotherapy.

How is liver cancer radiotherapy to return a responsibility

First, radiotherapy for primary liver cancer has a history of more than 50 years, which has experienced different processes, such as whole liver irradiation, local irradiation, whole liver moving strip irradiation and so on. However, due to the limitation of radiation technology, the normal liver is exposed to a large volume of radiation, and the incidence of radiation hepatitis increases. It is difficult to achieve the radical radiation dose required to kill liver cancer, which limits the curative effect. Therefore, radiotherapy was once considered unsuitable for the treatment of liver cancer.

Second: in the late 1990s, due to the progress of medical imaging and computer technology, three position conformal radiotherapy technology was gradually promoted in clinical application, and began to try to apply in the treatment of primary liver cancer. In recent years, body stereotactic radiotherapy (SBRT) is effective in the treatment of body tumors. Body gamma knife therapy is a special form of stereotactic radiotherapy.

Thirdly, it adopts the principle of rotational focusing, which makes multiple 60 Co radiation sources mounted on the rotating source do the conical rotary focusing movement around the center of the lesion, and focus the tumor by penetrating the normal tissue from different directions in a non coplanar manner. The radiation dose of the target area increases from the outside to the inner layer. Therefore, body gamma knife therapy can reduce the normal tissue dose and improve the tumor tissue quality In other words, it can increase the therapeutic gain ratio and improve the local control rate of tumor.

matters needing attention

The development and promotion of modern radiotherapy technology marks that the radiotherapy of liver cancer has entered a new era of precise positioning, precise treatment plan design, precise positioning and precise treatment.