An ultrasound imaging system is provided which produces gray scale images of the anatomy simultaneous with Doppler signal processing so as to provide a single real-time image that shows not only the vascular anatomy and surrounding tissue but also flow events in the vascular compartment. A phased linear...http://www.google.es/patents/US5477858?utm_source=gb-gplus-sharePatente US5477858 - Ultrasound blood flow/tissue imaging system
