Analyses of HyperArc Treatment Planning for Single and Multiple Brain Metastases

Abstract

HyperArc treatment plan quality was evaluated by four dosimetric indices such as RTOG, Paddick CI, Gradient Index, and New CI. From the Comparison of calculated values of indices with standard values of the dosimetric plan of HyperArc, it is confirmed that HyperArc is an advance and precise technique to treat Brain cancer. Gradient Index value showed some minor deviation of dose to the expected value of dose in the surrounding areas. However, consequences of the penetration of dose are not crucial for human tissues. Our study concluded that HyperArc is the most advanced and safest technique to treat cancer. In this treatment planning, sensitive parts of the face are most probably saved from radiation. the HyperArc is better for the treatment of NPC patients as compared to IMRT and Rapid Arc because HyperArc is good in sparing OAR, and also its coverage is better.