Emilio Quaia (Ed.)

2005

Basic Principles and Clinical Applications

Microbubble-based contrast agents for ultrasound were introduced some time ago, although their clinical application has become widespread only in recent years. Since color and power Doppler reveal overt artifacts after microbubble injection due to the peculiar features of harmonic signals produced by insonation of microbubbles, dedicated contrast-specific modes of US were introduced to optimize the registration of such signals.