Does quantity mean quality?
There is no threshold for good results. In general there is an inverse relationship between volume and outcome. High volume, though, is not a substitute for good results. It is not possible to infer good quality from high volume alone. Small-volume departments should document quality of care and results thoroughly.
TomoDirect and breath-hold 3DCRT are complementary techniques for left breast treatments: for a minority of patients, respiratory gating is mandatory to lower cardiac dose; for the remaining majority of patients, TomoDirect achieves better PTV homogeneity and reduced left lung dose, with cardiac dose equivalent to 3DCRT-DIBH.