Purpose
 The Hybrid Compact Gamma Camera (HCGC) has been developed to provide additional localisation information during procedures such as sentinel lymph node (SLN) biopsies. In this study, a lymph-node contrast (LNC) phantom and an evaluative technique that involved idealised medical scenarios were modelled to study the HCGC detectability of varying radioactivity concentration and sentinel lymph node size.
 
Materials and Methods

This study investigates the association of e-retailer’s website design, the consumers’ technological expertise, and some demographic characteristics with e-purchase transactions. The study was conducted on a sample of 290 respondents of Saudi consumers who had online purchase. The findings revealed a statistically significant positive relationship between the consumers’ technological expertise and their e-purchase transactions. The study also demonstrated no relationship between the e-retailer’s website design and the consumers’ e-purchase transactions.