Intensity-modulated radiation therapy with concurrent chemotherapy for locally advanced cervical and upper thoracic esophageal cancer

Table 2 Beam arrangement of IMRT plans for the 7 patients with cervical and upper thoracic esophageal cancer

Number of beams	Gantry angles	Number of segments	Number of monitor units per fraction	Total fraction	Total monitorunits
7	0, 25, 65, 141, 212, 295, 335	315	1395	28	39 060
5	40, 70, 220, 240, 290	218	759	28	21 252
9	0, 18, 35, 70, 150, 225, 295, 320, 340	559	1248 and 1468	8 + 21	40 812
7	0, 30, 60, 105, 260, 300, 330	270	749	33	24 717
5	0, 50, 120, 240, 300	198	831	33	27 423
8	12, 36, 60, 135, 225, 300, 324, 348	332	1288	33	42 504
9	0, 40, 70, 130, 160, 200, 230, 290, 320	417	972	33	32 076