A Digital Multigate Doppler Method for High Frequency Ultrasound
Noninvasive visualization of blood flow with high frequency Doppler ultrasound has been extensively used to assess the morphology and hemodynamics of the microcirculation. A completely digital implementation of multigate pulsed-wave (PW) Doppler method was proposed in this paper for high frequency u...
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| Format: | Article |
| Language: | English |
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MDPI AG
2014-07-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/14/8/13348 |
| _version_ | 1798041946890960896 |
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| author | Weibao Qiu Zongying Ye Yanyan Yu Yan Chen Liyang Chi Peitian Mu Guofeng Li Congzhi Wang Yang Xiao Jiyan Dai Lei Sun Hairong Zheng |
| author_facet | Weibao Qiu Zongying Ye Yanyan Yu Yan Chen Liyang Chi Peitian Mu Guofeng Li Congzhi Wang Yang Xiao Jiyan Dai Lei Sun Hairong Zheng |
| author_sort | Weibao Qiu |
| collection | DOAJ |
| description | Noninvasive visualization of blood flow with high frequency Doppler ultrasound has been extensively used to assess the morphology and hemodynamics of the microcirculation. A completely digital implementation of multigate pulsed-wave (PW) Doppler method was proposed in this paper for high frequency ultrasound applications. Analog mixer was eliminated by a digital demodulator and the same data acquisition path was shared with traditional B-mode imaging which made the design compact and flexible. Hilbert transform based quadrature demodulation scheme was employed to achieve the multigate Doppler acquisition. A programmable high frequency ultrasound platform was also proposed to facilitate the multigate flow visualization. Experimental results showed good performance of the proposed method. Parabolic velocity gradient inside the vessel and velocity profile with different time slots were acquired to demonstrate the functionality of the multigate Doppler. Slow wall motion was also recorded by the proposed method. |
| first_indexed | 2024-04-11T22:28:40Z |
| format | Article |
| id | doaj.art-ac7d93e29ff8404789847b917ca36914 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T22:28:40Z |
| publishDate | 2014-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-ac7d93e29ff8404789847b917ca369142022-12-22T03:59:34ZengMDPI AGSensors1424-82202014-07-01148133481336010.3390/s140813348s140813348A Digital Multigate Doppler Method for High Frequency UltrasoundWeibao Qiu0Zongying Ye1Yanyan Yu2Yan Chen3Liyang Chi4Peitian Mu5Guofeng Li6Congzhi Wang7Yang Xiao8Jiyan Dai9Lei Sun10Hairong Zheng11Paul C. Lauterbur Research Center for Biomedical Imaging, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, ChinaPaul C. Lauterbur Research Center for Biomedical Imaging, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, ChinaDepartment of Electronic Engineering, City University of Hong Kong, Hong Kong, ChinaThe Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen 518057, ChinaPaul C. Lauterbur Research Center for Biomedical Imaging, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, ChinaPaul C. Lauterbur Research Center for Biomedical Imaging, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, ChinaPaul C. Lauterbur Research Center for Biomedical Imaging, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, ChinaPaul C. Lauterbur Research Center for Biomedical Imaging, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, ChinaPaul C. Lauterbur Research Center for Biomedical Imaging, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, ChinaThe Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen 518057, ChinaInterdisciplinary Division of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong, ChinaPaul C. Lauterbur Research Center for Biomedical Imaging, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, ChinaNoninvasive visualization of blood flow with high frequency Doppler ultrasound has been extensively used to assess the morphology and hemodynamics of the microcirculation. A completely digital implementation of multigate pulsed-wave (PW) Doppler method was proposed in this paper for high frequency ultrasound applications. Analog mixer was eliminated by a digital demodulator and the same data acquisition path was shared with traditional B-mode imaging which made the design compact and flexible. Hilbert transform based quadrature demodulation scheme was employed to achieve the multigate Doppler acquisition. A programmable high frequency ultrasound platform was also proposed to facilitate the multigate flow visualization. Experimental results showed good performance of the proposed method. Parabolic velocity gradient inside the vessel and velocity profile with different time slots were acquired to demonstrate the functionality of the multigate Doppler. Slow wall motion was also recorded by the proposed method.http://www.mdpi.com/1424-8220/14/8/13348flow visualizationmultigate PW Dopplerdigital quadrature demodulationhigh frequency ultrasound |
| spellingShingle | Weibao Qiu Zongying Ye Yanyan Yu Yan Chen Liyang Chi Peitian Mu Guofeng Li Congzhi Wang Yang Xiao Jiyan Dai Lei Sun Hairong Zheng A Digital Multigate Doppler Method for High Frequency Ultrasound Sensors flow visualization multigate PW Doppler digital quadrature demodulation high frequency ultrasound |
| title | A Digital Multigate Doppler Method for High Frequency Ultrasound |
| title_full | A Digital Multigate Doppler Method for High Frequency Ultrasound |
| title_fullStr | A Digital Multigate Doppler Method for High Frequency Ultrasound |
| title_full_unstemmed | A Digital Multigate Doppler Method for High Frequency Ultrasound |
| title_short | A Digital Multigate Doppler Method for High Frequency Ultrasound |
| title_sort | digital multigate doppler method for high frequency ultrasound |
| topic | flow visualization multigate PW Doppler digital quadrature demodulation high frequency ultrasound |
| url | http://www.mdpi.com/1424-8220/14/8/13348 |
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