Beamforming and hardware design for a multichannel front-end integrated circuit for real-time 3D catheter-based ultrasonic imaging
Yükleniyor...
Dosyalar
Tarih
2006
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
SPIE-Int Soc Optical Engineering
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
We are working on integrating front-end electronics with the ultrasound transducer array for real-time 3D ultrasound imaging systems. We achieve this integration by flip-chip bonding a two-dimensional transducer array to an integrated circuit (IC) that comprises the front-end electronics. The front-end IC includes preamplifiers, multiplexers, and pulsers. We recently demonstrated a catheter-based real-time ultrasound imaging system based on a 16 x 16-element capacitive micromachined ultrasonic transducer (CMUT) array. The CMUT array is flip-chip bonded to a front-end IC that includes a pulser and preamplifier for each element of the array. To simplify the back-end processing and signal routing on the IC for this initial implementation, only a single array element is active at a time (classic synthetic aperture (CSA) imaging). Compared with classic phased array imaging (CPA), where multiple elements are used on transmit and receive, CSA imaging has reduced signal-to-noise ratio and prominent grating lobes. In this work, we evaluate three array designs for the next generation front-end IC. The designs assume there are 16 receive channels and that numerous transmit pulsers are provided by the IC. The designs presented are: plus-transmit x-receive, boundary-transmit x-receive with no common elements, and full-transmit x-receive with no common elements. Each design is compared with CSA and CPA imaging. We choose to implement an IC for the full-transmit x-receive with no common elements (FT-XR-NC) design for our next-generation catheter-based imaging system.
Açıklama
Funding was provided by the National Institutes of Health. IC fabrication was provided by National Semiconductor. Bill Broach and the members of the Portable Power Group at National Semiconductor provided valuable process and circuit design discussions.
Anahtar Kelimeler
2-Dimensional arrays, 3D, Beamforming, CMUT, Electronics, Imaging, Integration, Ultrasound, Volumetric
Kaynak
Medical Imaging 2006: Ultrasonic Imaging And Signal Processing
WoS Q Değeri
N/A
Scopus Q Değeri
N/A
Cilt
6147
Sayı
Künye
Wygant, I. O., Karaman, M., Oralkan, Ö., Khuri-Yakub, B. T. (2006). Beamforming and hardware design for a multichannel front-end integrated circuit for real-time 3D catheter-based ultrasonic imaging. Paper presented at the Medical Imaging 2006: Ultrasonic Imaging And Signal Processing, 1-8. doi:10.1117/12.673786
