PCI and Brain MRI Follow-up vs Brain MRI Follow-up Alone in Limited-stage SCLC Patients

Prophylactic cranial irradiation (PCI) is actually a habitual statement. It is a technique used to eliminate tiny metastatic lesions that have already existed in the brain, but can not be found by brain MRI and other inspection methods.

Thoracic radiotherapy is a local treatment of tumors located in the chest using ionizing radiation.

Chemotherapy is the abbreviation of chemical drug therapy. It is a treatment method that uses chemical drugs to prevent the proliferation, invasion and metastasis of cancer cells, and finally kill cancer cells.