connect(actionAdd_overlay_image_to_current_image,SIGNAL(triggered()), this,SLOT(SelectOverlayImage()));
connect(actionAdd_USSequence_toCT,SIGNAL(triggered()), this,SLOT(SelectFusionSequence()));
connect(actionNavigation_Help,SIGNAL(triggered()),this,SLOT(ShowHelpDialog()));
connect(actionAdd_overlay_image_to_current_image,SIGNAL(triggered()), this,SLOT(SelectOverlayImage()));
connect(actionAdd_USSequence_toCT,SIGNAL(triggered()), this,SLOT(SelectFusionSequence()));
connect(actionNavigation_Help,SIGNAL(triggered()),this,SLOT(ShowHelpDialog()));