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

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54<br />

<strong>Table</strong> B.17: <strong>Red</strong> <strong>bone</strong> <strong>marrow</strong> <strong>in</strong> <strong>the</strong> mandible<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 .0003 .0003 .0007 .0005 15.45<br />

1 to 2 .0009 .0009 .0014 .0014 10.91<br />

2 to 3 .0014 .0014 .0022 .0024 8.45<br />

3 to 4 .0021 .0024 .0033 .0038 6.93<br />

4 to 5 .0030 .0034 .0044 .0050 6.01<br />

5 to 6 .0050 .0048 .0073 .0070 4.94<br />

6 to 7 .0063 .0075 .0099 .0110 4.12<br />

7 to 8 .0104 .0120 .0131 .0154 3.38<br />

8 to 9 .0154 .0196 .0230 .0267 2.65<br />

9 to 10 20.0 .0982 .1375 .1285 .1711 1.24<br />

10 to 11 17.5 .1042 .1241 .1293 .1505 1.24<br />

11 to 12 39.5 .1882 .2469 .2348 .3061 0.93<br />

12 to 13 22.9 .1237 .1782 .1550 .2120 1.12<br />

13 to 14 .0139 .0169 .0178 .0210 2.97<br />

14 to 15 .0096 .0116 .0133 .0135 3.52<br />

15 to 16 .0076 .0091 .0111 .0120 3.86<br />

16 to 17 .0060 .0078 .0083 .0090 4.37<br />

17 to 18 .0044 .0060 .0065 .0075 4.93<br />

18 to 19 .0036 .0040 .0047 .0048 5.72<br />

19 to 20 .0026 .0028 .0039 .0043 6.52<br />

20 to 21 .0019 .0022 .0027 .0029 7.72<br />

21 to 22 .0015 .0015 .0023 .0023 8.72<br />

22 to 23 .0011 .0011 .0019 .0019 9.87<br />

23 to 24 .0009 .0011 .0015 .0018 10.54<br />

24 to 25 .0007 .0007 .0010 .0011 12.92<br />

25 to 26 .0005 .0007 .0008 .0010 14.18<br />

26 to 27 .0004 .0004 .0008 .0010 15.29<br />

27 to 28 .0003 .0003 .0006 .0004 17.71<br />

28 to 29 .0002 .0003 .0003 .0004 17.51<br />

29 to 30 .0001 .0001 .0003 .0003 16.18<br />

30 to 31 .0001 .0001 .0002 .0002 15.96<br />

31 to 32 .0001 .0001 .0002 .0002 12.98<br />

32 to 33 .0001 .0001 * .0001 12.99<br />

33 to 34 * * .0001 * 9.04

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