Table B.25: Red bone marrow in the whole body - Helmholtz ...
Table B.25: Red bone marrow in the whole body - Helmholtz ...
Table B.25: Red bone marrow in the whole body - Helmholtz ...
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100<br />
<strong>Table</strong> D. 5: Colon (ascend<strong>in</strong>g and transverse)<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 />
10 to 11 * * .0001 * 17.79<br />
11 to 12 * * * .0001 16.69<br />
12 to 13 * * .0001 * 16.72<br />
13 to 14 * * .0001 .0001 16.00<br />
14 to 15 * * .0001 .0001 15.28<br />
15 to 16 .0001 .0001 .0001 .0001 13.84<br />
16 to 17 .0001 .0001 .0001 .0001 13.93<br />
17 to 18 .0001 .0001 .0002 .0001 12.24<br />
18 to 19 .0001 .0001 .0002 .0002 12.29<br />
19 to 20 .0001 .0001 .0002 .0002 10.67<br />
20 to 21 .0001 .0001 .0003 .0003 9.35<br />
21 to 22 .0002 .0002 .0004 .0004 5.60<br />
22 to 23 .0003 .0003 .0005 .0005 6.71<br />
23 to 24 .0003 .0004 .0007 .0007 6.05<br />
24 to 25 .0005 .0005 .0009 .0008 5.26<br />
25 to 26 .0006 .0006 .0010 .0010 4.84<br />
26 to 27 .0007 .0007 .0011 .0013 4.43<br />
27 to 28 .0008 .0010 .0016 .0016 3.98<br />
28 to 29 .0011 .0012 .0018 .0020 3.56<br />
29 to 30 .0014 .0015 .0024 .0025 3.15<br />
30 to 31 .0018 .0020 .0029 .0030 2.82<br />
31 to 32 .0021 .0025 .0035 .0038 2.55<br />
32 to 33 .0029 .0032 .0046 .0053 2.22<br />
33 to 34 .0039 .0046 .0061 .0071 1.92<br />
34 to 35 .0052 .0062 .0078 .0090 1.68<br />
35 to 36 .0069 .0085 .0102 .0115 1.48<br />
36 to 37 .0093 .0112 .0132 .0153 1.30<br />
37 to 38 .0121 .0152 .0173 .0202 1.14<br />
38 to 39 .0166 .0203 .0222 .0265 1.00<br />
39 to 40 .0222 .0286 .0293 .0354 0.87<br />
40 to 41 .0312 .0407 .0397 .0491 0.76<br />
41 to 42 12.2 .0684 .0962 .0848 .1139 0.55<br />
42 to 43 23.4 .1050 .1513 .1280 .1767 0.46<br />
43 to 44 35.3 .1322 .1827 .1599 .2129 0.41