Left-Sided Whole Breast Irradiation with Hybrid-IMRT and Helical Tomotherapy Dosimetric Comparison
Figure 3
Beam arrangements of the conventional tangential-field plan (a) and the four-field IMRT plan (b). Beam angles of IMRT-1 and IMRT-2 in the 4-F IMRT plan were the same as beam angles of cTF-1 and cTF-2 in the cTF plan, while the others (IMRT-3 and IMRT-4) were 10–15° anterior to the tangential fields.
