3-D Imaging using Row–Column-Addressed 2-D Arrays with a Diverging Lens: Phantom Study

Hamed Bouzari; Mathias Engholm; Christopher Beers; Matthias Bo Stuart; Svetoslav Ivanov Nikolov; Erik Vilain Thomsen; Jørgen Arendt Jensen

doi:10.1109/ULTSYM.2017.8092496

3-D Imaging using Row–Column-Addressed 2-D Arrays with a Diverging Lens: Phantom Study

Hamed Bouzari, Mathias Engholm, Christopher Beers, Matthias Bo Stuart, Svetoslav Ivanov Nikolov, Erik Vilain Thomsen, Jørgen Arendt Jensen

Center for Fast Ultrasound Imaging

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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Abstract

A double-curved diverging lens over a flat row– column-addressed (RCA) 2-D array can extend its inherent rectilinear 3-D imaging field-of-view (FOV) to a curvilinear volume region, which is necessary for applications such as abdominal and cardiac imaging. A concave lens with radius of 12.7 mm was manufactured using RTV664 silicone. The diverging properties of the lens were evaluated based on measurements on several phantoms. The measured 6 dB FOV in contact with a material similar to human soft tissue was less than 15% different from the theoretical predictions, i.e., a curvilinear FOV of 32°×32°. A synthetic aperture imaging sequence with single element transmissions was designed for imaging down to 14 cm at a volume rate of 88 Hz. The performance was evaluated in terms of signal-to-noise ratio (SNR), FOV, and full-widthat-half-maximum (FWHM). The penetration depth in a tissue mimicking phantom with 0.5 dB/(cm MHz) attenuation was 13 cm. The results of this study confirm that the proposed lens approach is an effective method for increasing the FOV, when imaging with RCA 2-D arrays.

Original language	English
Title of host publication	2017 IEEE International Ultrasonics Symposium (IUS)
Number of pages	4
Publisher	IEEE
Publication date	2017
ISBN (Electronic)	978-1-5386-3383-0
DOIs	https://doi.org/10.1109/ULTSYM.2017.8092496
Publication status	Published - 2017
Event	2017 IEEE International Ultrasonics Symposium - Omni Shoreham Hotel, Washington D. C., United States Duration: 6 Sept 2017 → 9 Sept 2017 http://ewh.ieee.org/conf/ius/2017/

Conference

Conference	2017 IEEE International Ultrasonics Symposium
Location	Omni Shoreham Hotel
Country/Territory	United States
City	Washington D. C.
Period	06/09/2017 → 09/09/2017
Internet address	http://ewh.ieee.org/conf/ius/2017/

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title = "3-D Imaging using Row–Column-Addressed 2-D Arrays with a Diverging Lens: Phantom Study",

abstract = "A double-curved diverging lens over a flat row– column-addressed (RCA) 2-D array can extend its inherent rectilinear 3-D imaging field-of-view (FOV) to a curvilinear volume region, which is necessary for applications such as abdominal and cardiac imaging. A concave lens with radius of 12.7 mm was manufactured using RTV664 silicone. The diverging properties of the lens were evaluated based on measurements on several phantoms. The measured 6 dB FOV in contact with a material similar to human soft tissue was less than 15% different from the theoretical predictions, i.e., a curvilinear FOV of 32°×32°. A synthetic aperture imaging sequence with single element transmissions was designed for imaging down to 14 cm at a volume rate of 88 Hz. The performance was evaluated in terms of signal-to-noise ratio (SNR), FOV, and full-widthat-half-maximum (FWHM). The penetration depth in a tissue mimicking phantom with 0.5 dB/(cm MHz) attenuation was 13 cm. The results of this study confirm that the proposed lens approach is an effective method for increasing the FOV, when imaging with RCA 2-D arrays.",

author = "Hamed Bouzari and Mathias Engholm and Christopher Beers and Stuart, {Matthias Bo} and Nikolov, {Svetoslav Ivanov} and Thomsen, {Erik Vilain} and Jensen, {J{\o}rgen Arendt}",

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booktitle = "2017 IEEE International Ultrasonics Symposium (IUS)",

publisher = "IEEE",

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url = "http://ewh.ieee.org/conf/ius/2017/",

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Bouzari, H, Engholm, M, Beers, C, Stuart, MB, Nikolov, SI, Thomsen, EV & Jensen, JA 2017, 3-D Imaging using Row–Column-Addressed 2-D Arrays with a Diverging Lens: Phantom Study. in 2017 IEEE International Ultrasonics Symposium (IUS). IEEE, 2017 IEEE International Ultrasonics Symposium, Washington D. C., District of Columbia, United States, 06/09/2017. https://doi.org/10.1109/ULTSYM.2017.8092496

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AU - Bouzari, Hamed

AU - Engholm, Mathias

AU - Beers, Christopher

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AU - Nikolov, Svetoslav Ivanov

AU - Thomsen, Erik Vilain

AU - Jensen, Jørgen Arendt

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N2 - A double-curved diverging lens over a flat row– column-addressed (RCA) 2-D array can extend its inherent rectilinear 3-D imaging field-of-view (FOV) to a curvilinear volume region, which is necessary for applications such as abdominal and cardiac imaging. A concave lens with radius of 12.7 mm was manufactured using RTV664 silicone. The diverging properties of the lens were evaluated based on measurements on several phantoms. The measured 6 dB FOV in contact with a material similar to human soft tissue was less than 15% different from the theoretical predictions, i.e., a curvilinear FOV of 32°×32°. A synthetic aperture imaging sequence with single element transmissions was designed for imaging down to 14 cm at a volume rate of 88 Hz. The performance was evaluated in terms of signal-to-noise ratio (SNR), FOV, and full-widthat-half-maximum (FWHM). The penetration depth in a tissue mimicking phantom with 0.5 dB/(cm MHz) attenuation was 13 cm. The results of this study confirm that the proposed lens approach is an effective method for increasing the FOV, when imaging with RCA 2-D arrays.

AB - A double-curved diverging lens over a flat row– column-addressed (RCA) 2-D array can extend its inherent rectilinear 3-D imaging field-of-view (FOV) to a curvilinear volume region, which is necessary for applications such as abdominal and cardiac imaging. A concave lens with radius of 12.7 mm was manufactured using RTV664 silicone. The diverging properties of the lens were evaluated based on measurements on several phantoms. The measured 6 dB FOV in contact with a material similar to human soft tissue was less than 15% different from the theoretical predictions, i.e., a curvilinear FOV of 32°×32°. A synthetic aperture imaging sequence with single element transmissions was designed for imaging down to 14 cm at a volume rate of 88 Hz. The performance was evaluated in terms of signal-to-noise ratio (SNR), FOV, and full-widthat-half-maximum (FWHM). The penetration depth in a tissue mimicking phantom with 0.5 dB/(cm MHz) attenuation was 13 cm. The results of this study confirm that the proposed lens approach is an effective method for increasing the FOV, when imaging with RCA 2-D arrays.

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ER -

3-D Imaging using Row–Column-Addressed 2-D Arrays with a Diverging Lens: Phantom Study

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