Capacitive micromachined ultrasonic transducer (CMUT) arrays for medical imaging

Caronti, A.; Caliano, G.; Carotenuto, Riccardo; Savoia, Alessandro Stuart; Pappalardo, M.; Cianci, E.; Foglietti, V.

doi:10.1016/j.mejo.2005.10.012

Cited by 95 publications

(41 citation statements)

References 12 publications

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“…4 presents the calculated power output of the same element, with R A = R a /ρ 0 c 0 πa 2 = 0.03 resulting in about 0.6 db reduction in the output power. The calculated curves are similar to experimentally measured responses of arrays [4], [18], [19]. This damping gets rid of the high-Q resonances, but remnants of some resonances are still there.…”

Section: A Single-array Element Simulationssupporting

confidence: 79%

Rayleigh–bloch waves in CMUT arrays

Atalar

Köymen

Oğuz

2014

IEEE Trans. Ultrason., Ferroelect., Freq. Contr.

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Section: A Single-array Element Simulationssupporting

confidence: 79%

Rayleigh–bloch waves in CMUT arrays

Atalar

Köymen

Oğuz

2014

IEEE Trans. Ultrason., Ferroelect., Freq. Contr.

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“…In 2002, a linear CMUT array was developed by Oralkan et al from Stanford University, and then the team developed a 2D CMUT array which could implement 3D ultrasonic imaging [18][19][20][21][22][23][24][25][26][27][28], and conducted preliminary simulation experiments on imaging. In 2006, Caronti et al developed a one-dimensional array of ultrasonic transducers and detectors used in medical ultrasonic imaging [29]. Recently, some institutes in China have researched CMUT and made achievements.…”

Section: Introductionmentioning

confidence: 99%

Design and Performance Analysis of Capacitive Micromachined Ultrasonic Transducer Linear Array

Wang

et al. 2014

Micromachines

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An ultrasonic transducer is a key component to achieve ultrasonic imaging. This paper designs a new type of Microelectromechanical Systems (MEMS) based capacitive ultrasonic transducer and a linear array based on the transducer. Through directivity analysis, it can be found that its directivity is weak due to the small size of the designed transducer, but the directivity of the designed linear array is very strong. In order to further suppress the sidelobe interference and improve the resolution of the imaging system and imaging quality, the Dolph-Chebyshev weighting method and the Taylor weighting method are used to process −40dB sidelobe suppression, and satisfactory results are obtained, which can meet actual requirements.

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“…This allows a cost reduction [3] [4]. It is important to acknowledge that silicon-based electrostatic transducers rival the performance of the piezoelectric ones [5]. Composite materials are favorable for "dual-mode" transducers, due to their improved and wider bandwidth, which benefits the imaging performance and maintains a high level of efficiency for the treatment [6].…”

Section: Introductionmentioning

confidence: 99%

Application of ultrasound in medicine part ii: the ultrasonic transducer and its associated electronics

2013

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This paper introduces the reader to a review and analysis of various ultrasound (us) applications in the medical field. First, the transducer is shown, along with a diagram of the basic electronics that it uses to generate and receive signals that allow the reconstruction of images, for medical purposes. Also, us practical uses in medical therapy is shown. This subject is addressed by combining the physical principles involved in the us application, with the implemented technology and the modes of operation for non-invasive studies of pathologies related to brain, heart, and eyes such as injuries, tumors and hematomas. The methodology used in this article also suggests an analysis method for the us scientific and technological research principles combined for their implementation in medical applications.Keywords: ultrasonic transducer, piezoelectric, transmitter, receiver, converter, modes ResumenEn este trabajo se presenta al lector una revisión y análisis de diferentes aplicaciones del ultrasonido (us) en el campo médico. Inicialmente se muestra el transductor y un esquema de su electrónica básica asociada usada para emitir y adquirir las señales que permiten la reconstrucción de las imágenes, para efectos médicos y también la aplicación del us para terapia; la temática se aborda conjugando los principios físicos asociados a la aplicación del us con la tecnología implementada y sus modos de operación, para estudios no invasivos de patologías relacionadas con el cerebro, el corazón, los ojos y lesiones tales como tumores y hematomas. La metodología implementada en este artículo sugiere también un método de análisis de los principios científicos del us e investigación tecnológica asociadas para su concreción en las aplicaciones médicas.

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Capacitive micromachined ultrasonic transducer (CMUT) arrays for medical imaging

Cited by 95 publications

References 12 publications

Rayleigh–bloch waves in CMUT arrays

Rayleigh–bloch waves in CMUT arrays

Design and Performance Analysis of Capacitive Micromachined Ultrasonic Transducer Linear Array

Application of ultrasound in medicine part ii: the ultrasonic transducer and its associated electronics

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