Dual frequency ultrasound‐ A pulse‐echo technique for analysis of layered material

2008 ◽  
Vol 123 (5) ◽  
pp. 3697-3697
Author(s):  
Ossi Riekkinen ◽  
Mikko Hakulinen ◽  
Juha Töyräs ◽  
Jukka Jurvelin
Keyword(s):  
Layered Material ◽  
Dual Frequency ◽  
Pulse Echo ◽  
Frequency Ultrasound

Dual-Frequency Ultrasound—New Pulse–Echo Technique for Bone Densitometry

2008 ◽  
Vol 34 (10) ◽  
pp. 1703-1708 ◽  
Author(s):  
O. Riekkinen ◽  
M.A. Hakulinen ◽  
J. Töyräs ◽  
J.S. Jurvelin
Keyword(s):  
Bone Densitometry ◽  
Dual Frequency ◽  
Pulse Echo ◽  
Frequency Ultrasound

Treatment of Murine Tumors Using Dual-Frequency Ultrasound in an Experimental in Vivo Model

2009 ◽  
Vol 35 (5) ◽  
pp. 756-763 ◽  
Author(s):  
Amir H. Barati ◽  
Manijhe Mokhtari-Dizaji ◽  
Hossein Mozdarani ◽  
S. Zahra Bathaie ◽  
Zuhair M. Hassan
Keyword(s):  
In Vivo Model ◽  
Dual Frequency ◽  
Murine Tumors ◽  
Frequency Ultrasound

scholarly journals The Efficacy and Safety of Dual-Frequency Ultrasound for Improving Skin Hydration and Erythema in Patients with Rosacea and Acne

2021 ◽  
Vol 10 (4) ◽  
pp. 834
Author(s):  
Young Jae Kim ◽  
Ik Jun Moon ◽  
Hae Woong Lee ◽  
Chong Hyun Won ◽  
Sung Eun Chang ◽  
...  
Keyword(s):  
Skin Diseases ◽  
Skin Barrier ◽  
Skin Hydration ◽  
Efficacy And Safety ◽  
Dual Frequency ◽  
Barrier Dysfunction ◽  
Inflammatory Skin Diseases ◽  
Facial Erythema ◽  
Frequency Ultrasound

Inflammatory skin diseases, such as rosacea and acne, are major causes of facial erythema and accompanying skin barrier dysfunction. Several methods to restore the impaired skin barrier and improve facial erythema, such as medication, radiofrequency, laser, and ultrasound therapy were attempted. This study evaluated the efficacy and safety of dual-frequency ultrasound with impulse mode, for improving skin hydration and erythema in Asian subjects with rosacea and acne. Twenty-six subjects with facial erythema received an ultrasound treatment once per week, for 4 weeks, over both cheeks. The erythema index and transepidermal water loss (TEWL) were measured at each visit. Clinicians assessed the erythema improvement and patients evaluated their satisfaction level. The average decrease in TEWL and erythema index at 6 weeks was 5.37 ± 13.22 g·h−1·m−2 (p = 0.020) and 39.73 ± 44.21 (p = 0.010), respectively. The clinician’s erythema assessment and the subject satisfaction questionnaire score significantly improved at final follow-up (p < 0.001; p = 0.003, respectively). No serious adverse effects were observed during the treatment and follow-up periods. The dual-frequency ultrasound with impulse mode appears to be effective and safe for improving skin hydration and erythema in patients with rosacea and acne.

Strategy of differentiation therapy: effect of dual-frequency ultrasound on the induction of liver cancer stem-like cells on a HA-based multilayer film system

2019 ◽  
Vol 7 (35) ◽  
pp. 5401-5411 ◽  
Author(s):  
I-Chi Lee ◽  
Siaka Fadera ◽  
Hao-Li Liu
Keyword(s):  
Drug Resistance ◽  
Liver Cancer ◽  
Multilayer Film ◽  
Multilayer Films ◽  
Film System ◽  
Dual Frequency ◽  
Differentiation Therapy ◽  
System P ◽  
Therapy Effect ◽  
Frequency Ultrasound

HA-based multilayer films were used to select CSCs, and LIUS induces CSC differentiation and reduces drug resistance and invasion ability.

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