Rapid Arc Radiotherapy is a fast and accurate form of radiotherapy using advanced technologies from Varian Medical Systems. The new Rapid Arc treatment is two to eight times faster than conventional forms of radiation therapy. This accuracy can significantly affect patient income. This procedure, which takes about 90 seconds, is delivered much faster than conventional radiation therapy, the treatment time can last 20 minutes or longer. Reducing this time means that the treatment can be delivered before the patient becomes uncomfortable and potentially moving. Rapid Arc allows us to quickly receive high-precision radiotherapy (IMRT). Combined with on-board imaging (OBI) and CAT Scan (CBCT), the ability to visualize tumors in three dimensions improves the accuracy and efficiency of patient treatment. These treatments target tumors, saving the surrounding healthy tissue. Since they are fast, Rapid Arc treatment is also easier on the patient. It is very difficult for them to hold on for a long time. By increasing doses faster, we can simultaneously improve the quality of service and make our patients more comfortable.
Rapid Arc Radiation Therapy comes with one spin of the treatment machine around the patient. During this rotation, the processing beam is continuously formed and changes depending on the size, contour and position of the tumor inside the body. Beam formation is performed using a beam forming device called a multi-sheet collimator (MLC). This device has 120 computer-controlled mechanical “leaves” or “fingers” that move to create holes of various shapes and sizes. During Rapid Arc processing, specialized software algorithms simultaneously change three parameters: the rotation speed around the patient, the shape of the MLC aperture, and the dose delivery rate.
This technology is not limited to treating only prostate cancer. It can be used for most forms of cancer, including brain, lung, and liver. As this technology is constantly improving, significant advances will be made in the fight against cancer.
