A Novel Ultrasound Imaging System Based on Endoscopic Array Probe

2012 ◽  
Vol 588-589 ◽  
pp. 1148-1151
Author(s):  
Yun Xia Hao ◽  
Ying Li ◽  
Yi Wang ◽  
Xiao Dong Chen ◽  
Dao Yin Yu
Keyword(s):  
Ultrasound Imaging ◽  
Linear Array ◽  
Imaging System ◽  
Control Unit ◽  
Single Element ◽  
System A ◽  
Array Probe ◽  
Linear Array Probe ◽  
Array Ultrasound

A novel ultrasound imaging system based on endoscopic array probe is presented in this paper. The system utilizes an endoscopic linear-array probe instead of the conventional single-element probe to implement ultrasound scanning in vivo. For the system, a micro linear-array ultrasound probe sized Φ10mm×20mm is firstly designed. And then the excitation circuit, gating circuit and echo receiving and processing circuit are all designed cored by a center control unit FPGA. Finally the research of d/2 focusing algorithm is implemented on the basis of the system. After processed, the gray image of echoes reflected by a glass jar’s wall is obtained and shown on a computer.

Single-element Ultrasound Imaging System based on Mirror Scanning

2020 ◽  
Author(s):  
Seongwook Choi ◽  
Jin Young Kim ◽  
Hae Gyun Lim ◽  
Jin Woo Baik ◽  
Hyung Ham Kim ◽  
...  
Keyword(s):  
Ultrasound Imaging ◽  
Imaging System ◽  
Single Element

scholarly journals A Tumbling Magnetic Microrobot System for Biomedical Applications

Micromachines ◽  
2020 ◽  
Vol 11 (9) ◽  
pp. 861
Author(s):  
Elizabeth E. Niedert ◽  
Chenghao Bi ◽  
Georges Adam ◽  
Elly Lambert ◽  
Luis Solorio ◽  
...  
Keyword(s):  
Ultrasound Imaging ◽  
Biomedical Applications ◽  
Imaging System ◽  
Ex Vivo ◽  
Negative Control ◽  
Circular Path ◽  
Rotational Axis ◽  
Significant Difference

A microrobot system comprising an untethered tumbling magnetic microrobot, a two-degree-of-freedom rotating permanent magnet, and an ultrasound imaging system has been developed for in vitro and in vivo biomedical applications. The microrobot tumbles end-over-end in a net forward motion due to applied magnetic torque from the rotating magnet. By turning the rotational axis of the magnet, two-dimensional directional control is possible and the microrobot was steered along various trajectories, including a circular path and P-shaped path. The microrobot is capable of moving over the unstructured terrain within a murine colon in in vitro, in situ, and in vivo conditions, as well as a porcine colon in ex vivo conditions. High-frequency ultrasound imaging allows for real-time determination of the microrobot’s position while it is optically occluded by animal tissue. When coated with a fluorescein payload, the microrobot was shown to release the majority of the payload over a 1-h time period in phosphate-buffered saline. Cytotoxicity tests demonstrated that the microrobot’s constituent materials, SU-8 and polydimethylsiloxane (PDMS), did not show a statistically significant difference in toxicity to murine fibroblasts from the negative control, even when the materials were doped with magnetic neodymium microparticles. The microrobot system’s capabilities make it promising for targeted drug delivery and other in vivo biomedical applications.

Smartphone-based portable ultrasound imaging system: A primary result

2013 ◽  
Author(s):  
Kyu Cheol Kim ◽  
Min Jae Kim ◽  
Hyun Suk Joo ◽  
Wooyoul Lee ◽  
Changhan Yoon ◽  
...  
Keyword(s):  
Ultrasound Imaging ◽  
Imaging System ◽  
Primary Result ◽  
Portable Ultrasound ◽  
System A
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