TABLE 7

Total S Values for Small Intestinal Wall from Different Radionuclides

ReferenceSource tissueTarget tissueDoseS value (mGy MBq−1 s−1)
99mTc111In131I67Ga90Y
ICRP (21–23)*ContentsSI wallTotal5.6·10−61.5·10−54.5·10−51.0·10−51.9·10−4
MIRD (2)ContentsSI wallTotal5.9·10−61.6·10−54.5·10−51.1·10−51.9·10−4
MIRDOSE 3 (24)ContentsSI wallTotal4.4·10−61.1·10−54.0·10−58.9·10−61.8·10−4
Stubbs et al. (3)†ContentsCrypt cellsSelf-dose4·10−7N/A2·10−6N/A4·10−5
This work†ContentsCrypt cellsTotal2.4·10−68.2·10−67.3·10−62.9·10−62.5·10−5
This work†WallCrypt cellsTotal6.1·10−61.8·10−54.6·10−51.1·10−51.2·10−4

  • ↵* Recalculated from specific effective energy values.

  • ↵† S values given for activity in total small intestine.

  • SI = small intestinal; N/A = not applicable.

  • S values are given for mucus thickness of 200 μm (3; this work) and wall thickness of 3 mm (this work).