Improved accuracy of S-value-based dosimetry: a guide to transition from Cristy–Eckerman to ICRP adult phantoms

EJNMMI Physics

Table 3 Suggested use on simultaneous use of source regions

Source region A^c	Source region B^c	Simultaneous use of A and B
Lung-tis	Lungs	Prohibited^a
Remainder	Blood	Prohibited
Lung-tis	AI, brchiole-b, brchiole-q, brchiole	Prohibited
Lungs	AI, brchiole-b, brchiole-q, brchiole	Prohibited
C-bone-v	C-bone-s	Unusual^b
ET1-wall	ET1-sur	Unusual
ET2-wall	ET2-bnd, ET2-seq, ET2-sur	Unusual
Esophag-w	Esophag-s, Esophag-f	Unusual
LC-wall	LC-mucosa	Prohibited
RC-wall	RC-mucosa	Prohibited
RS-wall	RS-mucosa	Prohibited
SI-wall	SI-villi, SI-mucosa	Prohibited
ST-wall	ST-mucosa	Prohibited
Teeth-v	Teeth-s	Unusual
T-bone-v	T-bone-s	Unusual
C-marrow	R-marrow	Prohibited
C-marrow	Y-marrow	Prohibited
T-marrow	R-marrow	Prohibited
T-marrow	Y-marrow	Prohibited

^aProhibited indicates that the source region A overlaps with the source or sources in source region B and should not be used together
^bUnusual indicates that the sources do not overlap, but it would be difficult to measure the activity in the sources from imaging and would likely require modeling
^cAbbreviations of source regions listed are given in the Appendix (Table 5)