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中文核心期刊

LIU Xiao, TANG Hu, KONG Fankai, ZHAO Jiwei, CHEN Siping, PENG Jue. Design of a 1.5-dimensional ultrasound probe for transesophageal echocardiography[J]. ACTA ACUSTICA, 2024, 49(3): 410-416. DOI: 10.12395/0371-0025.2023317
Citation: LIU Xiao, TANG Hu, KONG Fankai, ZHAO Jiwei, CHEN Siping, PENG Jue. Design of a 1.5-dimensional ultrasound probe for transesophageal echocardiography[J]. ACTA ACUSTICA, 2024, 49(3): 410-416. DOI: 10.12395/0371-0025.2023317

Design of a 1.5-dimensional ultrasound probe for transesophageal echocardiography

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  • PACS: 
    • 43.38  (Transduction, acoustical devices for the generation and reproduction of sound)
  • Received Date: December 30, 2023
  • Revised Date: March 19, 2024
  • Available Online: May 08, 2024
  • A 1.5-dimensional (1.5D) transesophageal echocardiography probe is designed and developed. Compared with the traditional 1-dimensional (1D) probe, the probe can achieve variable aperture and focus in elevation direction, thus improving the consistency of slice thickness in far field and near field. A 1.5D transesophageal ultrasonic probe with 320 elements is developed using traditional PZT-5H piezoelectric ceramics. The electrical properties, acoustic properties, and acoustic field distribution of the probe are tested. The measured center frequency and −6 dB fractional bandwidth of the 1.5D probe are 5.6 MHz and 76%, respectively. In the range of 5−70 mm, the slice thickness is 7−9 mm for 1D ultrasonic probe and 1.3−2.8 mm for 1.5D ultrasonic probe. The slice thickness difference is less than 0.2 mm in the range of 5−30 mm for 1.5D ultrasonic probe. And the information displayed by images is also more comprehensive and higher in resolution. Therefore, the 1.5D ultrasonic probe has a wider focusing depth, better distribution consistency in the near and far field, and higher spatial resolution.

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    Zou C, Li Y, Hou S, et al. Development of cardiac phased array with large-size PZN-5.5% PT single crystals. IEEE Trans. Sonics Ultrason. Ferroelectr. Freq. Control, 2021; 69(2): 744−750 DOI: 10.1109/TUFFC.2021.3120774

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