Does the new TNM classification (1997) improve prognostic stratification in gastric cancer submitted to R0 surgery?
In the present series, the new TNM (1997) did not improve the prognostic stratification of lymph-node involvement. An adequate and universal system for lymph-node stratification is necessary and further validation of these classifications is needed.
Tumour uptake of (68)Ga-AMBA was higher while overall background activity was lower than observed for (18)F-FCH in the same PC-bearing mice. These results suggest that peptide receptor-based targeting using the bombesin analogue AMBA is superior to metabolism-based targeting using choline for scintigraphy of PC.