Abstract
The concept of interventional radiology was introduced in 1976 as a new diagnostic and therapeutic method, relying on image guidance, such as X-ray, ultrasound, computed tomography (CT), and magnetic resonance imaging. Its indications mainly include obstructive diseases, and to a lesser extent, malignant tumors. Radiotherapy (RT) plays a pivotal role in the comprehensive treatment of cancer. The advent of the CT simulator has significantly enhanced the precision of RT and improvement outcomes and accelerated the development of a series of diagnostic and RT modalities, including puncture biopsy, fiducial marker implantation, high-dose rate after-loading after-loading brachytherapy, and radioactive seed implantation. The innovative concept of image-guidance interventional RT, inspired by interventional radiology, extends the benefits to not only cancer diagnosis but also RT. The image-guidance interventional RT advances the field of RT by expanding its indications and connotation.
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