Feasibility of low-frequency ultrasound imaging using parametric sound

2015 ◽  
Author(s):  
Hideyuki Nomura ◽  
Hideo Adachi ◽  
Tomoo Kamakura
Keyword(s):  
Ultrasound Imaging ◽  
Low Frequency ◽  
Low Frequency Ultrasound ◽  
Frequency Ultrasound

scholarly journals Frequency Domain Compressive Sampling for Ultrasound Imaging

2012 ◽  
Vol 2012 ◽  
pp. 1-16 ◽  
Author(s):  
Céline Quinsac ◽  
Adrian Basarab ◽  
Denis Kouamé
Keyword(s):  
Ultrasound Imaging ◽  
Applied Mathematics ◽  
Low Frequency ◽  
Compressive Sampling ◽  
Recent Theory ◽  
Ultrasound Images ◽  
Resonance Imaging ◽  
Low Frequency Ultrasound ◽  
2D And 3D ◽  
Frequency Ultrasound

Compressed sensing or compressive sampling is a recent theory that originated in the applied mathematics field. It suggests a robust way to sample signals or images below the classic Shannon-Nyquist theorem limit. This technique has led to many applications, and has especially been successfully used in diverse medical imaging modalities such as magnetic resonance imaging, computed tomography, or photoacoustics. This paper first revisits the compressive sampling theory and then proposes several strategies to perform compressive sampling in the context of ultrasound imaging. Finally, we show encouraging results in 2D and 3D, on high- and low-frequency ultrasound images.

Low-frequency ultrasound and photochromotherapy in the complex treatment of patients with chronic bacterial and viral rhinosinusitis

2020 ◽  
pp. 13-23
Author(s):  
Natalya Kornova ◽  
A. Krylov
Keyword(s):  
Chronic Rhinosinusitis ◽  
Low Frequency ◽  
Chronic Tonsillitis ◽  
Complex Treatment ◽  
Resonance Imaging ◽  
X Ray ◽  
Low Frequency Ultrasound ◽  
Viral Nature ◽  
Ig G ◽  
Frequency Ultrasound

The article presents results of a study on the effectiveness of using lowfrequency ultrasound and photochromotherapy in the complex treatment of patients with chronic bacterial and viral rhinosinusitis. The study involved 69 people aged 18 to 55 years: 39 (56.83 %) women and 30 (45.11 %) men with chronic rhinosinusitis during the period of clinical exacerbation and concomitant chronic tonsillitis without exacerbation. All patients included in the study underwent X-ray examination or computed tomography and magnetic resonance imaging of the paranasal sinuses. 100 % of the patients were examined for the presence of antibodies to Human gammaherpesvirus 4 (ELISA), had study of blood serum for IgM and IgG and test to determine the avidity of Ig G antibodies to γ-herpesviruses. The obtained data indicate the effectiveness of including low-frequency ultrasound and photochromotherapy in the complex treatment of patients with chronic rhinosinusitis and concomitant chronic tonsillitis of bacterial and viral nature without exacerbation.

Application of Low‐Frequency Ultrasound for Intensified Biodiesel Production Process

2021 ◽  
pp. 59-84
Author(s):  
Mohd Razealy Anuar ◽  
Mohamed Hussein Abdurahman ◽  
Nor Irwin Basir ◽  
Ahmad Zuhairi Abdullah
Keyword(s):  
Production Process ◽  
Low Frequency ◽  
Biodiesel Production ◽  
Low Frequency Ultrasound ◽  
Frequency Ultrasound

The comparative study of high- and low-frequency ultrasound therapy on bone regeneration

2003 ◽  
Vol 29 (5) ◽  
pp. S120-S121
Author(s):  
S. Bashardoust Tajali ◽  
S. Kazemi ◽  
A. Azari ◽  
A. Shahverdi ◽  
M. Jabal Ameli
Keyword(s):  
Comparative Study ◽  
Bone Regeneration ◽  
Low Frequency ◽  
Ultrasound Therapy ◽  
Low Frequency Ultrasound ◽  
The Comparative Study ◽  
Frequency Ultrasound

Photoactivity under visible light of metal loaded TiO 2 catalysts prepared by low frequency ultrasound treatment

2017 ◽  
Vol 284 ◽  
pp. 92-99 ◽  
Author(s):  
M. Bellardita ◽  
H.A. El Nazer ◽  
V. Loddo ◽  
F. Parrino ◽  
A.M. Venezia ◽  
...  
Keyword(s):  
Visible Light ◽  
Low Frequency ◽  
Ultrasound Treatment ◽  
Low Frequency Ultrasound ◽  
Frequency Ultrasound
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