Table II.

Maximum dose (Gy) in the organs at risk for three-dimensional conformal radiotherapy and IMRT.

Technique	Spinal canal	Liver	Left kidney	Right kidney	Pancreas	Spleen	External
2-field	47.71	49.89	45.73	45.78	48.12	48.21	50.99
	(45.6–52)	(47.1–53.1)	(27.6–50.8)	(35.3–49)	(46–51.4)	(45.9–51.8)	(47.1–55.5)
3-field	43.82	49.46	45.52	44.82	48.44	49.99	50.64
	(14.7–48.6)	(46.4–53.6)	(24.8–50.3)	(29.9–48)	(45.7–54.6)	(46–58)	(46.4–58)
4-field	38.57	48.33	45.63	44.50	47.17	47.67	49.49
	(26.2–46.6)	(46.2–51.1)	(40.5–47.8)	(25.5–56.2)	(45.6–49.2)	(45.9–49.9)	(46.4–58)
IMRT	41.26	47.68	42.42	40.56	47.63	48.10	49.99
	(34.5–50.3)	(45.2–50.7)	(22.5–49.1)	(28.3–47.4)	(44.8–49.9)	(45.9–51.7)	(47.1–571)

Data are presented as median (range), IMRT, intensity-modulated radiation therapy.