TY - JOUR
T1 - Acoustic characterization of a miniature matrix transducer for pediatric 3D transesophageal echocardiography
AU - Daeichin, Verya
AU - Bera, Deep
AU - Raghunathan, Shreyas
AU - Shabani Motlagh, Maysam
AU - Chen, Zhao
AU - Chen, Chao
AU - Noothout, Emile
AU - Vos, Hendrik J.
AU - Pertijs, Michiel
AU - de Jong, Nico
AU - Verweij, Martin
AU - More Authors, null
N1 - Accepted author manuscript
PY - 2018
Y1 - 2018
N2 - 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.
AB - 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.
KW - ASIC
KW - micro-beamforming
KW - pediatric matrix transducer
KW - Transesophageal echocardiography
KW - volumetric imaging
UR - http://resolver.tudelft.nl/uuid:d9668c81-01da-4ae6-beaa-a910f8d1037c
UR - http://www.scopus.com/inward/record.url?scp=85050646598&partnerID=8YFLogxK
U2 - 10.1016/j.ultrasmedbio.2018.06.009
DO - 10.1016/j.ultrasmedbio.2018.06.009
M3 - Article
AN - SCOPUS:85050646598
SN - 0301-5629
VL - 44
SP - 2143
EP - 2154
JO - Ultrasound in Medicine and Biology
JF - Ultrasound in Medicine and Biology
IS - 10
ER -