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Ultrasound imaging with high resolution and large penetration depth has been increasingly adopted in medical diagnosis, surgery guidance, and treatment assessment. Conventional ultrasound works at a particular frequency, with a [Formula: see text] fractional bandwidth of [Formula: see text], limiting the imaging resolution or depth of field. In this paper, a bifrequency colinear array with resonant frequencies of 8 and 20 MHz was investigated to meet the requirements of resolution and penetration depth for a broad range of ultrasound imaging applications. Specifically, a 32-element bifrequency colinear array was designed and fabricated, followed by element characterization and real-time sectorial scan (S-scan) phantom imaging using a Verasonics system. The bifrequency colinear array was tested in four different modes by switching between low and high frequencies on transmit and receive. The four modes included the following: 1) transmit low, receive low; 2) transmit low, receive high; 3) transmit high, receive low; and 4) transmit high, receive high. After testing, the axial and lateral resolutions of all modes were calculated and compared. The results of this study suggest that bifrequency colinear arrays are potential aids for wideband fundamental imaging and harmonic/subharmonic imaging.
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Sibo Li, and
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Caterina M Gallippi, and
Ruibin Liu, and
Xuecang Geng, and
Xiaoning Jiang
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Zhuochen Wang, and
Sibo Li, and
Tomasz J Czernuszewicz, and
Caterina M Gallippi, and
Ruibin Liu, and
Xuecang Geng, and
Xiaoning Jiang
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Xiaoning Jiang
December 2012,
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Zhuochen Wang, and
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Caterina M Gallippi, and
Ruibin Liu, and
Xuecang Geng, and
Xiaoning Jiang
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Zhuochen Wang, and
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Caterina M Gallippi, and
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Xuecang Geng, and
Xiaoning Jiang
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IEEE transactions on ultrasonics, ferroelectrics, and frequency control,
Zhuochen Wang, and
Sibo Li, and
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Caterina M Gallippi, and
Ruibin Liu, and
Xuecang Geng, and
Xiaoning Jiang
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Zhuochen Wang, and
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Tomasz J Czernuszewicz, and
Caterina M Gallippi, and
Ruibin Liu, and
Xuecang Geng, and
Xiaoning Jiang
March 2022,
Optics letters,
Zhuochen Wang, and
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Caterina M Gallippi, and
Ruibin Liu, and
Xuecang Geng, and
Xiaoning Jiang
December 2010,
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Zhuochen Wang, and
Sibo Li, and
Tomasz J Czernuszewicz, and
Caterina M Gallippi, and
Ruibin Liu, and
Xuecang Geng, and
Xiaoning Jiang
March 2024,
Sensors (Basel, Switzerland),
Zhuochen Wang, and
Sibo Li, and
Tomasz J Czernuszewicz, and
Caterina M Gallippi, and
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Xuecang Geng, and
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