Table 2.

Summary of patients treated with reirradiation on the ViewRay MRIdian Linac

Patient number	Age	Primary cancer	Prior RT dose, median, Gy/fx	Interval to reRT,mo	ReRT location	ReRT PTV, cm3	ReRT total dose/ fx	ReRT schedule	ReRT EQD210, median, Gy	ReRT EQD23, median, Gy	On-table adaptive replanning	Concurrent chemotherapy	Local progression	Grade ≥3 toxic effects
1	88	Pancreas	30/5	12.8	Pancreas	31.31	25/5	QD	31.3	40	No	No	No	No
2	58	Rectum	50.4/28	30.1	Presacral	160.71	54/36	bid	51.8	48.6	No	Xeloda	21.9 mo after reRT	No
3	62	Rectum	45/25	26.8	LN	33.24	40.8/34	bid	38.1	34.3	No	Xeloda	32.3 mo after reRT	No
4	60	Lung	40/5	7.6	LN	43.4	40/5	QD	60	88	Yes	No	No	No
5	70	Pancreas	59.4/33	11.9	Pancreas	190.2	50/5	QD	83.3	130	Yes	No	No	No
6	34	Rectum	58.8/28	59.0	Presacral	38.84	42/28	bid	40.3	37.8	No	Xeloda	8 mo after reRT	No
7	42	Cervix	59.4/33	31.4	LN	28.34	33/6	QD	42.6	56.1	Yes	No	No	No
8	62	Cervix	59.4/33	10.7	LN	26.26	32.5/5	QOD	44.7	61.8	No	No	No	No
9	76	Pancreas	50.4/28	13.7	Pancreas	37.84	40/5	QD	60	88	No	No	No	No
10	80	Rectum	50.0/25	43.4	Rectum	143.45	42/28	bid	40.3	37.8	No	Xeloda	No	No
11	78	Bile duct	56/28	32.4	SMA	53.25	40/6	QOD	55.6	77.3	No	No	No	No

Abbreviations: bid = twice daily; EQD2 = equivalent dose in 2-Gy fractions; fx = fraction; LN = lymph node; PTV = planning target volume; QD = daily; QOD = every other day; reRT = reirradiation; RT = radiation therapy.