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

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170<br />

<strong>Table</strong> E. 3: <strong>Red</strong> <strong>bone</strong> <strong>marrow</strong> <strong>in</strong> <strong>the</strong> scapulae<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 />

1 to 2 * * .0001 .0001 14.66<br />

2 to 3 .0001 .0001 .0001 .0001 12.17<br />

3 to 4 .0001 .0001 .0002 .0002 10.22<br />

4 to 5 .0002 .0001 .0003 .0003 8.66<br />

5 to 6 .0002 .0002 .0004 .0004 7.80<br />

6 to 7 .0003 .0002 .0006 .0005 6.84<br />

7 to 8 .0003 .0004 .0007 .0006 5.80<br />

8 to 9 .0005 .0004 .0009 .0007 5.25<br />

9 to 10 .0006 .0005 .0010 .0009 4.73<br />

10 to 11 .0007 .0006 .0011 .0012 4.36<br />

11 to 12 .0009 .0006 .0014 .0012 4.03<br />

12 to 13 .0010 .0009 .0018 .0014 3.73<br />

13 to 14 .0013 .0010 .0019 .0017 3.49<br />

14 to 15 .0013 .0011 .0022 .0018 3.35<br />

15 to 16 .0015 .0012 .0022 .0021 3.19<br />

16 to 17 .0016 .0014 .0025 .0023 3.04<br />

17 to 18 .0018 .0016 .0027 .0027 2.86<br />

18 to 19 .0020 .0019 .0031 .0030 2.66<br />

19 to 20 .0042 .0039 .0062 .0056 1.94<br />

20 to 21 1.6 .0189 .0163 .0249 .0222 1.00<br />

21 to 22 18.7 .0411 .0320 .0556 .0466 0.50<br />

22 to 23 34.5 .1015 .0672 .1394 .0994 0.50<br />

23 to 24 17.5 .0585 .0409 .0813 .0606 0.64<br />

24 to 25 9.2 .0375 .0271 .0531 .0406 0.76<br />

25 to 26 5.5 .0261 .0178 .0374 .0269 0.89<br />

26 to 27 3.9 .0209 .0134 .0295 .0203 1.01<br />

27 to 28 3.4 .0177 .0108 .0251 .0167 1.11<br />

28 to 29 2.9 .0146 .0084 .0210 .0132 1.23<br />

29 to 30 2.4 .0122 .0066 .0173 .0105 1.38<br />

30 to 31 0.5 .0058 .0040 .0087 .0064 1.75<br />

31 to 32 .0030 .0027 .0050 .0044 2.14<br />

32 to 33 .0023 .0022 .0038 .0037 2.36<br />

33 to 34 .0019 .0018 .0032 .0030 2.62<br />

34 to 35 .0014 .0014 .0027 .0024 2.97

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