Forward-looking volumetric intracardiac imaging using a fully integrated CMUT ring array

Amin Nikoozadeh, Ömer Oralkan, Mustafa Gencel, Jung Woo Choe, Douglas N. Stephens, Alan De La Rama, Peter Chen, Kai Thomenius, Aaron Dentinger, Douglas Wildes, Kalyanam Shivkumar, Aman Mahajan, Matthew O'Donnell, David Sahn, Pierre T. Khuri-Yakub

Research output: Chapter in Book/Report/Conference proceedingConference contribution

35 Citations (Scopus)

Abstract

Atrial fibrillation is the most common type of cardiac arrhythmia that now affects over 2.2 million adults in the United States alone. Currently fluoroscopy is the most common method for guiding interventional electrophysiological procedures. We are developing a 9-F forward-looking intracardiac ultrasound catheter for real-time volumetric imaging. We designed and fabricated a 64-element 10-MHz CMUT ring array with through-wafer via interconnects. We also designed custom front-end electronics to be closely integrated with the CMUT array at the tip of the catheter for improved SNR. This integrated circuit (IC) is composed of preamplifiers and protection circuitry, and can directly interface a standard imaging system. This multi-channel IC is capable of passing up to ±50-V bipolar pulses. An 8-channel front-end IC was fabricated based on this circuit topology. Additionally, a flexible PCB was designed for the integration of ring array with front-end electronics. We have acquired a PC-based real-time imaging platform and demonstrated real-time imaging with the ring array. We have also shown volume images using off-line full synthetic aperture image reconstruction method. The presented experimental results demonstrate the performance of our forward-looking volumetric intracardiac imaging approach. We are currently working on the final catheter integration and further development of our real-time imaging methods.

Original languageEnglish (US)
Title of host publicationProceedings - IEEE Ultrasonics Symposium
DOIs
StatePublished - 2009
Event2009 IEEE International Ultrasonics Symposium, IUS 2009 - Rome, Italy
Duration: Sep 20 2009Sep 23 2009

Other

Other2009 IEEE International Ultrasonics Symposium, IUS 2009
CountryItaly
CityRome
Period9/20/099/23/09

Fingerprint

integrated circuits
rings
arrhythmia
fibrillation
fluoroscopy
synthetic apertures
polychlorinated biphenyls
preamplifiers
image reconstruction
electronics
topology
platforms
wafers
pulses

Keywords

  • Capacitive micromachined ultrasonic transducers
  • CMUT
  • Electrophysiology
  • Forward-looking
  • Intracardiac echo
  • Real-time
  • Ultrasound
  • Volumetric

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

Cite this

Nikoozadeh, A., Oralkan, Ö., Gencel, M., Choe, J. W., Stephens, D. N., De La Rama, A., ... Khuri-Yakub, P. T. (2009). Forward-looking volumetric intracardiac imaging using a fully integrated CMUT ring array. In Proceedings - IEEE Ultrasonics Symposium [5441600] https://doi.org/10.1109/ULTSYM.2009.5441600

Forward-looking volumetric intracardiac imaging using a fully integrated CMUT ring array. / Nikoozadeh, Amin; Oralkan, Ömer; Gencel, Mustafa; Choe, Jung Woo; Stephens, Douglas N.; De La Rama, Alan; Chen, Peter; Thomenius, Kai; Dentinger, Aaron; Wildes, Douglas; Shivkumar, Kalyanam; Mahajan, Aman; O'Donnell, Matthew; Sahn, David; Khuri-Yakub, Pierre T.

Proceedings - IEEE Ultrasonics Symposium. 2009. 5441600.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Nikoozadeh, A, Oralkan, Ö, Gencel, M, Choe, JW, Stephens, DN, De La Rama, A, Chen, P, Thomenius, K, Dentinger, A, Wildes, D, Shivkumar, K, Mahajan, A, O'Donnell, M, Sahn, D & Khuri-Yakub, PT 2009, Forward-looking volumetric intracardiac imaging using a fully integrated CMUT ring array. in Proceedings - IEEE Ultrasonics Symposium., 5441600, 2009 IEEE International Ultrasonics Symposium, IUS 2009, Rome, Italy, 9/20/09. https://doi.org/10.1109/ULTSYM.2009.5441600
Nikoozadeh A, Oralkan Ö, Gencel M, Choe JW, Stephens DN, De La Rama A et al. Forward-looking volumetric intracardiac imaging using a fully integrated CMUT ring array. In Proceedings - IEEE Ultrasonics Symposium. 2009. 5441600 https://doi.org/10.1109/ULTSYM.2009.5441600
Nikoozadeh, Amin ; Oralkan, Ömer ; Gencel, Mustafa ; Choe, Jung Woo ; Stephens, Douglas N. ; De La Rama, Alan ; Chen, Peter ; Thomenius, Kai ; Dentinger, Aaron ; Wildes, Douglas ; Shivkumar, Kalyanam ; Mahajan, Aman ; O'Donnell, Matthew ; Sahn, David ; Khuri-Yakub, Pierre T. / Forward-looking volumetric intracardiac imaging using a fully integrated CMUT ring array. Proceedings - IEEE Ultrasonics Symposium. 2009.
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