scholarly journals High-frequency spectral ultrasound imaging (SUSI) visualizes early post-traumatic heterotopic ossification (HO) in a mouse model

Bone ◽  
2018 ◽  
Vol 109 ◽  
pp. 49-55 ◽  
Author(s):  
Kavitha Ranganathan ◽  
Xiaowei Hong ◽  
David Cholok ◽  
Joe Habbouche ◽  
Caitlin Priest ◽  
...  
Keyword(s):  
Mouse Model ◽  
Heterotopic Ossification ◽  
Ultrasound Imaging ◽  
High Frequency ◽  
Post Traumatic

High Frequency Spectral Ultrasound Imaging Detects Early Heterotopic Ossification in Rodents

2021 ◽  
Author(s):  
Nicole J. Edwards ◽  
Eric Hobson ◽  
Devaveena Dey ◽  
Alisha Rhodes ◽  
Archie Overmann ◽  
...  
Keyword(s):  
Heterotopic Ossification ◽  
Ultrasound Imaging ◽  
High Frequency

Design and Experiment of Capacitive Micromachined Ultrasonic Transducer Array for High-Frequency Underwater Imaging

2020 ◽  
Vol 13 ◽  
Author(s):  
Yuanyu Yu ◽  
Jiujiang Wang ◽  
Xin Liu ◽  
Sio Hang Pun ◽  
Weibao Qiu ◽  
...  
Keyword(s):  
Ultrasound Imaging ◽  
High Frequency ◽  
Ultrasonic Transducer ◽  
Center Frequency ◽  
Design Parameters ◽  
Underwater Imaging ◽  
Release Process ◽  
Steel Wires ◽  
Capacitive Micromachined Ultrasonic Transducer ◽  
Frequency Ultrasound

Background:: Ultrasound is widely used in the applications of underwater imaging. Capacitive micromachined ultrasonic transducer (CMUT) is a promising candidate to the traditional piezoelectric ultrasonic transducer. In underwater ultrasound imaging, better resolutions can be achieved with a higher frequency ultrasound. Therefore, a CMUT array for high-frequency ultrasound imaging is proposed in this work. Methods:: Analytical methods are used to calculate the center frequency in water and the pull-in voltage for determining the operating point of CMUT. Finite element method model was developed to finalize the design parameters. The CMUT array was fabricated with a five-mask sacrificial release process. Results:: The CMUT array owned an immersed center frequency of 2.6 MHz with a 6 dB fractional bandwidth of 123 %. The pull-in voltage of the CMUT array was 85 V. An underwater imaging experiment was carried out with the target of three steel wires. Conclusion:: In this study, we have developed CMUT for high-frequency underwater imaging. The experiment showed that the CMUT can detect the steel wires with the diameter of 100 μm and the axial resolution was 0.582 mm, which is close to one wavelength of ultrasound in 2.6 MHz.

High-Frequency Quantitative Ultrasound Imaging of Cancerous Lymph Nodes

2009 ◽  
Vol 48 (7) ◽  
pp. 07GK08 ◽  
Author(s):  
Jonathan Mamou ◽  
Alain Coron ◽  
Masaki Hata ◽  
Junji Machi ◽  
Eugene Yanagihara ◽  
...  
Keyword(s):  
Lymph Nodes ◽  
Ultrasound Imaging ◽  
Quantitative Ultrasound ◽  
High Frequency
Sign in / Sign up

Export Citation Format

Share Document