Blood Flow Velocity Measurement:CCF based on I/Q signal

摘要：

Blood flow velocity measurement by ultrasonictechniques has proved to be a valuable tool for clinical diagnosis.Cross-correlation technique(CCF) is a classic one among variousmeasurement methods. For most CCF blood flow measurementrelated papers, RF signal is widely mentioned, without in-phase/quadrature (I/Q) signal. This paper discusses CCF basedon I/Q signal instead of traditional RF echoes, for more preciseblood flow velocity measurement, we apply several methods toimprove it, weighted average method which assigns differentweight for different space distance echoes, and absolute distancelimiting method which quite improves traditional parabolic-fitinterpolation bias problem. Computer simulation and testingdemonstrate that our proposed methods have betterperformance compared with traditional ones.

作者: Jing Wang Dong C.Liu

作者单位: Computer Science College, Sichuan University Chengdu, China

会议类型: 国际会议

会议名称: The 4th International Conference on Bioinformatics and Biomedical Engineering(第四届IEEE生物信息与生物医学工程国际会议 iCBBE 2010)

会议地点: 成都

会议语种:英文

页码: 1-4

在线出版日期: 2010-06-18（万方平台首次上网日期，不代表论文的发表时间）