Title :
B-mode blood flow (B-flow) imaging
Author :
Chiao, Richard Y. ; Mo, Larry Y. ; Hall, Anne L. ; Miller, Steven C. ; Thomenius, Kai E.
Author_Institution :
GE Med. Syst., Milwaukee, WI, USA
Abstract :
B-flow is a new technique that extends the resolution, frame rate, and dynamic range of B-mode to simultaneously image blood flow and tissue. B-flow relies on coded excitation to boost weak signals from blood scatterers and on tissue equalization to simultaneously display flowing blood and tissue without threshold decision and overlay. Various classes of codes such as Barker and Golay may be used. Clinical B-flow cineloops demonstrate 3× resolution and frame rate improvement over color flow, which, together with over 60 dB of display dynamic range, are able to image hemodynamics and vessel walls with unprecedented clarity
Keywords :
Golay codes; biomedical ultrasonics; blood flow measurement; image resolution; ultrasonic scattering; B-mode blood flow imaging; Barker codes; Golay codes; blood scatterers; clinical B-flow cineloops; coded excitation; color flow; display dynamic range; dynamic range; frame rate; hemodynamics; resolution; threshold decision; tissue; tissue equalization; vessel walls; weak signals; Biomedical imaging; Blood flow; Decoding; Displays; Dynamic range; Energy resolution; Image resolution; Pulse compression methods; Signal resolution; Wideband;
Conference_Titel :
Ultrasonics Symposium, 2000 IEEE
Conference_Location :
San Juan
Print_ISBN :
0-7803-6365-5
DOI :
10.1109/ULTSYM.2000.921601
