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

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

662 Downloads (Pure)


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 languageEnglish
Title of host publication2017 IEEE International Ultrasonics Symposium (IUS)
Number of pages4
Publication date2017
ISBN (Electronic)978-1-5386-3383-0
Publication statusPublished - 2017
Event2017 IEEE International Ultrasonics Symposium - Omni Shoreham Hotel, Washington D. C., United States
Duration: 6 Sept 20179 Sept 2017


Conference2017 IEEE International Ultrasonics Symposium
LocationOmni Shoreham Hotel
Country/TerritoryUnited States
CityWashington D. C.
Internet address


Dive into the research topics of '3-D Imaging using Row–Column-Addressed 2-D Arrays with a Diverging Lens: Phantom Study'. Together they form a unique fingerprint.

Cite this