Neo-adjuvant chemo-radiation of rectal cancer with Volumetric Modulated Arc Therapy: summary of technical and dosimetric features and early clinical experience

Table 4 Clinical results after chemo-radiotherapy and surgery.

	TNM	RA	3DC
Duration of RT [days] (for the 44/45 Gy course)		32 ± 4 [25-39]	33 ± 7 [28-56]
Downstaging: (at surgery)	T	41% (7/17)*	26% (5/19)
	N	12% (2/17)	21% (4/19)
Upstaging: (at surgery)	T	6% (1/17)	11% (2/19)
	N	18% (3/17)	11% (2/19)
	M	6% (1/17)	0% (0/19)

* 3 patients are lost to follow-up
Values are reported in % of patients scored for the specific parameter and in brackets the number of patients reporting an effect vs. the total scored).

ISSN: 1748-717X