The Siemens Acuson Sequoia 512 is an ultrasound machine with a mid-range price and high performance. It has applications in cardiology, vascular, OB/GYN, and other areas. Imaging modes include B-mode, Doppler, and 3D. Features include an 18" LCD monitor, 3 probe ports, tissue harmonic imaging, and image management software. A variety of cardiac, vascular, and general imaging probes are available.