Indirect imaging of cardiac-specific transgene expression using a bidirectional two-step transcriptional amplification strategy

I Y Chen, O Gheysens, S Ray, Q Wang, P Padmanabhan, R Paulmurugan, A M Loening, M Rodriguez-Porcel, J K Willmann, A Y Sheikh, Carsten Haagen Nielsen, G Hoyt, C H Contag, R C Robbins, S Biswal, J C Wu, S S Gambhir