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1 April 2016 A preliminary evaluation work on a 3D ultrasound imaging system for 2D array transducer
Xiaoli Zhong, Xu Li, Jiali Yang, Chunyu Li, Junjie Song, Mingyue Ding, Ming Yuchi
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Proceedings Volume 9790, Medical Imaging 2016: Ultrasonic Imaging and Tomography; 97901U (2016) https://doi.org/10.1117/12.2216232
Event: SPIE Medical Imaging, 2016, San Diego, California, United States
Abstract
This paper presents a preliminary evaluation work on a pre-designed 3-D ultrasound imaging system. The system mainly consists of four parts, a 7.5MHz, 24×24 2-D array transducer, the transmit/receive circuit, power supply, data acquisition and real-time imaging module. The row-column addressing scheme is adopted for the transducer fabrication, which greatly reduces the number of active channels . The element area of the transducer is 4.6mm by 4.6mm. Four kinds of tests were carried out to evaluate the imaging performance, including the penetration depth range, axial and lateral resolution, positioning accuracy and 3-D imaging frame rate. Several strong reflection metal objects , fixed in a water tank, were selected for the purpose of imaging due to a low signal-to-noise ratio of the transducer. The distance between the transducer and the tested objects , the thickness of aluminum, and the seam width of the aluminum sheet were measured by a calibrated micrometer to evaluate the penetration depth, the axial and lateral resolution, respectively. The experiment al results showed that the imaging penetration depth range was from 1.0cm to 6.2cm, the axial and lateral resolution were 0.32mm and 1.37mm respectively, the imaging speed was up to 27 frames per second and the positioning accuracy was 9.2%.
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Xiaoli Zhong, Xu Li, Jiali Yang, Chunyu Li, Junjie Song, Mingyue Ding, and Ming Yuchi "A preliminary evaluation work on a 3D ultrasound imaging system for 2D array transducer", Proc. SPIE 9790, Medical Imaging 2016: Ultrasonic Imaging and Tomography, 97901U (1 April 2016); https://doi.org/10.1117/12.2216232
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KEYWORDS
Ultrasonography
Image resolution
Imaging arrays
Signal to noise ratio
Stereoscopy
3D acquisition
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