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| 脉冲多普勒超声速度频谱图像中速度脉动信号提取方法探讨 | |
| 引用本文： | 郭应强,唐红,许唯临,刘善均,张建民,石应康. 脉冲多普勒超声速度频谱图像中速度脉动信号提取方法探讨[J]. 生物医学工程学杂志, 2006, 23(6): 1149-1152 |
| 作者姓名： | 郭应强 唐红 许唯临 刘善均 张建民 石应康 |
| 作者单位： | 1. 四川大学,华西医院,胸心血管外科,成都,610041;四川大学,高速水力学国家重点实验室,成都,610044 2. 四川大学,华西医院,超声心动图室,成都,610041 3. 四川大学,高速水力学国家重点实验室,成都,610044 4. 四川大学,华西医院,胸心血管外科,成都,610041 |
| 基金项目： | 国家自然科学基金;中国博士后科学基金 |
| 摘 要： | 针对目前脉冲多普勒超声（PDU）速度频谱图像中速度及其脉动信号提取方法存在的数据量不足、工作量大和可重复性低的情况，本研究结合前期研究获得的成果和PDU速度频谱构成的基本原理，在Visual Basics平台上，初步设计开发了一套具有一定自动化程度的PDU速度频谱图像处理软件。其速度、雷诺正应力（RNS）的计算结果与粒子成像流速仪（PIV）检测结果之间具有较好的相关性（r=0．93和0．78）。研究结果表明：该软件在一定程度上增加了信号处理的有效数据量、降低了工作量，提高了结果的可重复性。可以成为今后临床医学超声速度频谱图像分析的一种有效的手段。 |
| 关 键 词： | 脉冲多普勒超声 速度 方法 |
| 收稿时间： | 2005-04-06 |
| 修稿时间： | 2005-04-062006-04-30 |
A Preliminary Study on the Extraction Method of Velocity Pulsated Signals in the Velocity Spectrum Image of Pulsed Doppler Ultrasounds In Vitro |
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| Guo Yingqiang,Tang Hong,Xu Weilin,Liu Shanjun,Zhang Jianmin,Shi Yingkang. A Preliminary Study on the Extraction Method of Velocity Pulsated Signals in the Velocity Spectrum Image of Pulsed Doppler Ultrasounds In Vitro[J]. Journal of biomedical engineering, 2006, 23(6): 1149-1152 | |
| Authors: | Guo Yingqiang Tang Hong Xu Weilin Liu Shanjun Zhang Jianmin Shi Yingkang |
| Affiliation: | 1,Department of Cardiovascular Surgery, West China Hospital of Sichuan University,Chengdu 610041 ,China; 2 ,Department of Cardiovascular Ultrasonography, West China Hospital of Sichuan University,Chengdu 610041 ,China;3,The State Key Lab of Hydraulics on High Speed Flow, Sichuan University,Chengdu 610044,China |
| Abstract: | Focus on the defects of the extraction method of velocity pulsated signals in the velocity spectrum image of pulsed Doppler ultrasounds (such as the limited data, great amount of work and low reproducibility), we combine the earlier research results and the basic rules of the velocity spectrum image, and employing the visual basics plateau, to design and develop a software to extract the velocity signals from the spectrum image automatically. Compare the mean velocity and RNS between the PIV and the PDU resulting from the method, the correlations are r= 0.93 and r=0.78 respectively. The study reveals the software increase the amount of valid data, decrease the amount of work and increase reproducibility of the signals extraction. The method may be an effective way to analyse the velocity spectrum image of PDU in clinic. |
| Keywords: | Pulsed Doppler Ultrasounds(PDU) Velocity Method |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |