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. 2009 Oct 14;4:44. doi: 10.1186/1748-717X-4-44

Table 2.

Correlation of prescriptions (non-breast cases)

denominator\numerator PTV
DMean 		PTV5
DMean 		PTV
D95 		PTV5
D95 		ICRU
RD
(Case-Mean) 		ICRU
RD
[%] [%] [%] [%] [%] [%]
CRT
n = 35		 PTV DMedian 99.5
0.4		 100.4
0.6		 92.4
2.9		 96.6
1.0		 99.9
1.4		 99.9
1.8
PTV DMean 100.9
0.7		 92.8
2.9		 97.1
1.2		 100.5
1.7		 100.5
2.0
PTV5 DMean 92.0
3.1		 96.2
1.0		 99.5
1.5		 99.5
1.8
PTV D95 104.7
3.1		 108.3
4.0		 108.0
4.2
PTV5 D95 103.5
1.8		 103.4
2.1
ICRU RD (Case Mean) 100.0
1.1
IMRT
n = 47		 PTV DMedian 100.0
0.8		 100.5
1.0		 94.7
2.3		 97.2
1.5		 100.3
1.7		 100.3
2.7
PTV DMean 100.5
1.5		 94.7
2.4		 97.3
1.9		 100.3
2.1		 100.4
3.0
PTV5 DMean 94.3
2.2		 96.8
1.1		 99.7
1.3		 99.7
2.4
PTV D95 102.6
2.0		 107.0
2.8		 107.0
3.5
PTV5 D95 103.0
1.8		 103.0
2.7
ICRU RD (Case Mean) 100.0
2.1

Correlation of several prescription and reporting methods. All methods report for the same dose distribution per study. -- Non-breast cases. The upper value in each cell is the mean value; the lower value is the corresponding standard deviation. ICRU RD: ICRU Reference Dose; PTV5: PTV shrunk by 5 mm; Case mean: Mean value of four (IMRT with a single PTV: five) points suitable for dose description according to ICRU 50/62