Fig. 1From: Conservative management of trachea-to-innominate artery transfixion with a guidewire during percutaneous tracheostomy: a case reportpanel a, suprasternal notch acoustic window, short axis ultrasound image showing the innominate artery crossed by the guide wire. * guidewire, ° innominate artery; panel b, innominate artery color Doppler appearance; panel c, innominate artery pulsed-wave DopplerBack to article page