Micromachined capacitive transducer arrays for intravascular ultrasound

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Küçük Resim

Tarih

2005

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

SPIE

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Araştırma projeleri

Organizasyon Birimleri

Dergi sayısı

Özet

Intravascular ultrasound (IVUS) imaging has become an essential imaging modality for the effective diagnosis and treatment of cardiovascular diseases during the past decade enabled by innovative applications of piezoelectric transducer technology. The limitations in the manufacture and performance of the same piezoelectric transducers have also impeded the improvement of IVUS for emerging clinically important applications such as forward viewing arrays for guiding interventions and high resolution imaging of arterial structure such as vulnerable plaque and fibrous cap, and also implementation of techniques such as harmonic imaging of the tissue and of the contrast agents. Capacitive micromachined ultrasonic transducer (CMUT) technology shows great potential for transforming IVUS not only to satisfy these clinical needs but also to open up possibilities for low-cost imaging devices integrated to therapeutic tools. We have developed manufacturing processes with a maximum process temperature of 250°C to build CMUTs on the same silicon chip with integrated electronics. Using these processes we fabricated CMUT arrays suitable for forward viewing IVUS in the 10-20MHz range. We characterized these array elements in terms of pulse-echo response, radiation pattern measurements and demonstrated its volumetric imaging capabilities on various imaging targets.

Açıklama

SPIE

Anahtar Kelimeler

Angiography, Backscatter, Blood vessels, Capacitive micromachined, Chip, Computerized tomography, Coronary artery disease, Coronary-arteries, Fabrication, Generation, Harmonic imaging, Intravascular ultrasound imaging, Lithography, Micromachined ultrasonic transducers, Medical imaging, Microelectromechanical devices, Micromachining, Optimization, Transducers, Ultrasonic imaging, Ultrasonic transducers, Ultrasonics, Validation

Kaynak

Progress in Biomedical Optics and Imaging - Proceedings of SPIE

WoS Q Değeri

N/A

Scopus Q Değeri

N/A

Cilt

5721

Sayı

Künye

Levent Değertekin, F., Güldiken, R. O. & Karaman, M. (2005). Micromachined capacitive transducer arrays for intravascular ultrasound. Paper presented at the Progress in Biomedical Optics and Imaging - Proceedings of SPIE, 5721, 104-114. doi:10.1117/12.596021