Comparison of treatment planning techniques in treatment of carcinoma of left breast: Second cancer perspective

Compared to all plans, VMAT plan showed high conformity for CTV and superior heart and left lung sparing. But SCR for skin and the low dose bath volume were significantly high in VMAT. ITF plan showed relatively better sparing for contra lateral breast and heart. EC plan shows moderately good sparing for OARs while scoring least SCR value for skin next to EDW. EDW and PW plans were similar but later had high SCR for contra lateral-breast. Planning techniques like ITF and VMAT can be strongly considered for left breast, provided better skin sparing techniques and less dose spillage can be achieved.