Print Email Facebook Twitter Acoustic characterization of a miniature matrix transducer for pediatric 3D transesophageal echocardiography Title Acoustic characterization of a miniature matrix transducer for pediatric 3D transesophageal echocardiography Author Daeichin, V. (TU Delft ImPhys/Acoustical Wavefield Imaging) Bera, D. (Erasmus MC) Raghunathan, S.B. (TU Delft ImPhys/Acoustical Wavefield Imaging) Shabanimotlagh, M. (TU Delft ImPhys/Acoustical Wavefield Imaging) Chen, Z. (TU Delft Electronic Instrumentation) Chen, C. (TU Delft Electronic Instrumentation) Noothout, E.C. (TU Delft ImPhys/Acoustical Wavefield Imaging) Vos, H.J. (TU Delft ImPhys/Acoustical Wavefield Imaging; Erasmus MC) Pertijs, M.A.P. (TU Delft Electronic Instrumentation) de Jong, N. (TU Delft ImPhys/Acoustical Wavefield Imaging; Erasmus MC) Verweij, M.D. (TU Delft ImPhys/Acoustical Wavefield Imaging; Erasmus MC) Date 2018 Abstract This paper presents the design, fabrication and characterization of a miniature PZT-on-CMOS matrix transducer for real-time pediatric 3-dimensional (3D) transesophageal echocardiography (TEE). This 3D TEE probe consists of a 32 × 32 array of PZT elements integrated on top of an Application Specific Integrated Circuit (ASIC). We propose a partitioned transmit/receive array architecture wherein the 8 × 8 transmitter elements, located at the centre of the array, are directly wired out and the remaining receive elements are grouped into 96 sub-arrays of 3 × 3 elements. The echoes received by these sub-groups are locally processed by micro-beamformer circuits in the ASIC that allow pre-steering up to ±37°. The PZT-on-CMOS matrix transducer has been characterized acoustically and has a centre frequency of 5.8 MHz, -6 dB bandwidth of 67%, a transmit efficiency of 6 kPa/V at 30 mm, and a receive dynamic range of 85 dB with minimum and maximum detectable pressures of 5 Pa and 84 kPa respectively. The properties are very suitable for a miniature pediatric real-time 3D TEE probe. Subject ASICmicro-beamformingpediatric matrix transducerTransesophageal echocardiographyvolumetric imaging To reference this document use: http://resolver.tudelft.nl/uuid:d9668c81-01da-4ae6-beaa-a910f8d1037c DOI https://doi.org/10.1016/j.ultrasmedbio.2018.06.009 Embargo date 2019-07-30 ISSN 0301-5629 Source Ultrasound in Medicine & Biology, 44 (10), 2143-2154 Bibliographical note Accepted author manuscript Part of collection Institutional Repository Document type journal article Rights © 2018 V. Daeichin, D. Bera, S.B. Raghunathan, M. Shabanimotlagh, Z. Chen, C. Chen, E.C. Noothout, H.J. Vos, M.A.P. Pertijs, N. de Jong, M.D. Verweij, More Authors Files PDF UMB_11225_edit_report.pdf 921.8 KB Close viewer /islandora/object/uuid:d9668c81-01da-4ae6-beaa-a910f8d1037c/datastream/OBJ/view