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Table B.25: Red bone marrow in the whole body - Helmholtz ...

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67<br />

<strong>Table</strong> B.24: <strong>Red</strong> <strong>bone</strong> <strong>marrow</strong> <strong>in</strong> <strong>the</strong> sternum<br />

Mean organ dose normalised to air kerma free <strong>in</strong> air on <strong>the</strong> axis of rotation<br />

and average coefficients of variance per s<strong>in</strong>gle 1 cm wide slice; <strong>the</strong> volume<br />

ratio of <strong>the</strong> organ located with<strong>in</strong> each s<strong>in</strong>gle slice is also shown.<br />

Slice Volume Conversion factors Coeff.<br />

ratio<br />

of var.<br />

80 kV 125 kV<br />

cm % 360° 180° 360° 180° %<br />

0 to 1 .0001 .0001 .0003 * 1.94<br />

1 to 2 .0001 .0003 .0001 .0004 6.12<br />

2 to 3 .0004 .0004 .0009 .0007 12.76<br />

3 to 4 .0005 .0006 .0007 .0008 13.33<br />

4 to 5 .0007 .0009 .0008 .0012 17.22<br />

5 to 6 .0010 .0008 .0018 .0007 16.73<br />

6 to 7 .0010 .0008 .0016 .0030 16.87<br />

7 to 8 .0026 .0023 .0025 .0028 16.95<br />

8 to 9 .0035 .0027 .0050 .0047 15.51<br />

9 to 10 .0056 .0039 .0053 .0072 13.50<br />

10 to 11 .0062 .0067 .0086 .0103 11.29<br />

11 to 12 .0102 .0104 .0093 .0126 9.65<br />

12 to 13 .0128 .0165 .0177 .0192 7.92<br />

13 to 14 .0143 .0189 .0196 .0257 7.35<br />

14 to 15 7.9 .0560 .0847 .0641 .0984 4.20<br />

15 to 16 47.0 .2131 .3242 .2423 .3768 2.29<br />

16 to 17 7.0 .0720 .0983 .0828 .1141 3.74<br />

17 to 18 24.2 .1278 .2007 .1579 .2272 2.85<br />

18 to 19 10.4 .0685 .1025 .0832 .1247 3.81<br />

19 to 20 3.5 .0326 .0486 .0444 .0614 5.22<br />

20 to 21 .0123 .0138 .0124 .0145 8.73<br />

21 to 22 .0083 .0097 .0100 .0122 10.02<br />

22 to 23 .0065 .0055 .0088 .0089 11.90<br />

23 to 24 .0041 .0043 .0078 .0077 12.93<br />

24 to 25 .0035 .0033 .0041 .0035 15.71<br />

25 to 26 .0023 .0021 .0033 .0034 16.80<br />

26 to 27 .0019 .0019 .0028 .0021 17.40<br />

27 to 28 .0008 .0014 .0026 .0016 16.59<br />

28 to 29 .0004 .0009 .0017 .0009 17.75<br />

29 to 30 .0002 .0011 .0009 .0011 11.98<br />

30 to 31 .0002 .0003 .0011 .0002 12.70<br />

31 to 32 .0001 .0005 .0005 .0005 9.75<br />

32 to 33 .0001 .0001 .0005 .0003 6.46<br />

33 to 34 .0001 .0001 .0002 .0002 5.47

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