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ICRU 50
• GTV
• CTV
• PTV
• Irradiated
Volume
• Treated Volume
• OAR
• ICRU reference
point
• Dose
heterogeneity
• (>95%, <107%)
ICRU 62
• Reference
points
• Coordinate
Systems
• PRV
• ITV
ICRU 83
• Detailed
labelling of
structures
• Volumetric
prescription
• Median dose
(D50%)
• Near min
(D98%)
• Near max
(D2%)
• HI and
Conformity