Efficiency Control Cellulite Treatment Using High-Frequency Ultrasound Visualization of High Resolution

10.12737/5809 ◽  
2014 ◽  
Vol 8 (1) ◽  
pp. 1-2
Author(s):  
Белков ◽  
P. Belkov ◽  
Безуглый ◽  
A. Bezuglyy ◽  
Круглова ◽  
...  
Keyword(s):  
High Resolution ◽  
Human Skin ◽  
High Frequency ◽  
Subcutaneous Tissue ◽  
Control Group ◽  
Objective Data ◽  
High Frequency Ultrasound ◽  
Functional Parameters ◽  
Efficiency Control ◽  
Frequency Ultrasound

To describe ultrasonographic image of human skin with cellulite, the authors used high-frequency ultrasound visualization of the skin with a frequency of 22 MHz using a system DUB (tpm GmbH Germany). The skin on the thigh in 15 patients with cellulite and in 10 patients in the control group was examined. The differences in thickness and acoustic density of dermis and subcutaneous tissue between the group of patients with cellulite and in control were described. Objective data of high frequency ultrasound allow to quantify morphological and functional parameters of the skin in the dynamics and results of cellulite correction.

Intraocular Pressure–dependent Corneal Elasticity Measurement Using High-frequency Ultrasound

2019 ◽  
Vol 41 (5) ◽  
pp. 251-270 ◽  
Author(s):  
Laurentius O. Osapoetra ◽  
Dan M. Watson ◽  
Stephen A. McAleavey
Keyword(s):  
Intraocular Pressure ◽  
High Resolution ◽  
High Frequency ◽  
Wave Speed ◽  
Biomechanical Properties ◽  
Single Element ◽  
High Frequency Ultrasound ◽  
Spatially Resolved ◽  
Corneal Biomechanical Properties ◽  
Frequency Ultrasound

Measurement of corneal biomechanical properties can aid in predicting corneal responses to diseases and surgeries. For delineation of spatially resolved distribution of corneal elasticity, high-resolution elastography system is required. In this study, we demonstrate a high-resolution elastography system using high-frequency ultrasound for ex-vivo measurement of intraocular pressure (IOP)-dependent corneal wave speed. Tone bursts of 500 Hz vibrations were generated on the corneal surface using an electromagnetic shaker. A 35-MHz single-element transducer was used to track the resulting anti-symmetrical Lamb wave in the cornea. We acquired spatially resolved wave speed images of the cornea at IOPs of 7, 11, 15, 18, 22, and 29 mmHg. The IOP dependence of corneal wave speed is apparent from these images. Statistical analysis of measured wave speed as a function of IOP revealed a linear relation between wave speed and IOP cs = 0.37 + 0.22 × IOP, with the coefficient of determination R2 = 0.86. We also observed depth-dependent variations of wave speed in the cornea, decreasing from anterior toward posterior. This depth dependence is more pronounced at higher IOP values. This study demonstrates the potential of high-frequency ultrasound elastography in the characterization of spatially resolved corneal biomechanical properties.

scholarly journals Do High Frequency Ultrasound Images Support Clinical Skin Assessment?

ISRN Nursing ◽  
2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Alison P. Porter-Armstrong ◽  
Catherine Adams ◽  
Anne S. Moorhead ◽  
Jeannie Donnelly ◽  
Jane Nixon ◽  
...  
Keyword(s):  
Ultrasound Imaging ◽  
Tissue Damage ◽  
High Frequency ◽  
Subcutaneous Tissue ◽  
Potential Method ◽  
Ultrasound Images ◽  
High Frequency Ultrasound ◽  
Patients At Risk ◽  
Qualitative Classification ◽  
Frequency Ultrasound

High frequency ultrasound imaging has been reported as a potential method of identifying the suspected tissue damage in patients “at risk” of pressure ulceration. The aim of this study was to explore whether ultrasound images supported the clinical skin assessment in an inpatient population through identification of subcutaneous tissue damage. Skin on the heels and/or sacral coccygeal area of fifty vascular surgery inpatients was assessed clinically by tissue viability nurses and with ultrasound pre operatively and at least every other day until discharge. Images were compared to routine clinical skin assessment outcomes. Qualitative classification of ultrasound images did not match outcomes yielded through the clinical skin assessment. Images corresponding to 16 participants were classified as subgroup 3 damage at the heels (equivalent to grade 2 pressure ulceration); clinical skin assessment rated no heels as greater than grade 1a (blanching erythema). Conversely, all images captured of the sacral coccygeal area were classified as normal; the clinical skin assessment rated two participants as grade 1b (non-blanching erythema). Ultrasound imaging is a potentially useful adjunct to the clinical skin assessment in providing information about the underlying tissue. However, further longitudinal clinical assessment is required to characterise images against actual and “staged” pressure ulceration.

scholarly journals Changes in the microcirculation of the oral mucosa in post-COVID-19 patients not receiving anti-coagulant therapy

2022 ◽  
Vol 20 (4) ◽  
pp. 95-100
Author(s):  
M. V. Chubarnova ◽  
A. B. Davydov ◽  
V. A. Esin ◽  
O. B. Davydova ◽  
I. O. Kostin
Keyword(s):  
Blood Flow ◽  
Oral Mucosa ◽  
High Frequency ◽  
Control Group ◽  
High Frequency Ultrasound ◽  
Flow Rates ◽  
Mean Values ◽  
Coronavirus Infection ◽  
The Mean ◽  
Frequency Ultrasound

Introduction. The outbreak of a new coronavirus infection has become a challenge for the global health system. The COVID-19 infection is directly related to various disorders of the cardiovascular system, including the microcirculatory bed, caused by thrombotic events and deteriorations of blood rheology. Aims. The paper reports on the results of a study of Doppler sonographic parameters changes in patients with a novel coronavirus infection over the past 6 months. Materials and methods. We assessed the oral mucosa microcirculation in three segments using the high-frequency ultrasound dopple-rography. Results. We recorded the linear and volumetric blood flow rates and the Gosling and Purselo indexes in the course of our work. When comparing the obtained average statistical parameters of blood flow velocity, the linear and volumetric blood flow rates in patients of both groups were found to be lain in the same range and the mean values of Vas, Vam, Qas were equal. The mean values of the Purselo resistance index were closer to 1,0 in patients with COVID-19, and the values of the Gosling pulsation index (PI) were on average 53.3 % higher than in the control group. Conclusion. We evaluated the screening capabilities and potential of high-frequency ultrasound dopplerography for use in patients of different age groups and different somatic status.

High Frequency Ultrasound for High Resolution Skin Imaging

Frequenz ◽  
2001 ◽  
Vol 55 (1-2) ◽  
Author(s):  
Michael Vogt ◽  
Katharina Kaspar ◽  
Peter Altmeyer ◽  
Klaus Hoffmann ◽  
Stephan El Gammal
Keyword(s):  
High Resolution ◽  
High Frequency ◽  
High Frequency Ultrasound ◽  
Skin Imaging ◽  
Frequency Ultrasound

scholarly journals Study of the influence of different methods of application of Metrogyl Denta gel on the microbiota of periodontal pockets in periodontitis

2021 ◽  
Vol 25 (1) ◽  
pp. 42-47
Author(s):  
Dmitry I. Morozov ◽  
Alexander G. Volkov ◽  
Egor E. Olesov ◽  
Nataliya Zh. Dikopova ◽  
Yulia A. Trefilova
Keyword(s):  
High Frequency ◽  
Periodontal Diseases ◽  
Practical Interest ◽  
Control Group ◽  
Periodontal Tissue ◽  
High Frequency Ultrasound ◽  
Periodontal Tissues ◽  
Group Data ◽  
And Control ◽  
Frequency Ultrasound

BACKGROUND: One of the most popular antibacterial drugs used in periodontology is Metrogil Denta gel. In recent years, it is most often prescribed as a means of local antibacterial therapy. However, there is practically no information about the use of Metrogil Denta gel ultraphonophoresis in the treatment of periodontal tissue diseases. Therefore, the development of the Metrogil Denta gel ultraphonophoresis technique and the study of its effectiveness in inflammatory periodontal diseases has significant theoretical and practical interest. AIM: This study aimed to explore the influence of various methods of using Metrogyl Denta gel on the microbiota of the periodontal pockets in periodontitis. MATERIALS AND METHODS: In the first group (main), composed of 20 patients with a diagnosis of moderate periodontitis, the treatment procedures included high-frequency ultrasound and application of antibacterial preparation of Metrogyl Denta gel for the periodontal tissue (ultraphonophoresis of Metrogyl Denta gel). In the second group (control), composed of 20 patients with a diagnosis of moderate periodontitis, phonophoresis was not prescribed, and Metrogyl Denta gel was applied into the surface of the gums of the upper and lower jaw two times a day for 10 days. RESULTS: Contents of the pathological periodontal pockets were examined twice: first after dental plaque removal in patients with periodontitis of the main and control groups and then after 10 ultraphonophoresis procedures using Metrogyl Denta gel as a contact medium in the study group or after 10 days of Metrogyl Denta gel applications in the control group. Data analysis revealed that ultraphonophoresis of Metrogyl Denta gel has a more pronounced antibacterial effect in comparison with the injection of this drug. CONCLUSIONS: The combined effect of high-frequency ultrasound and Metrogyl Denta gel makes it possible to create a drug reserve in the periodontal tissues.

Abstract 443: Absence of Pro-Protein Convertase Subtilisin/Kexin 6 Increases Flow-Mediated Outward Remodeling in the Mouse Common Carotid Artery

2017 ◽  
Vol 37 (suppl_1) ◽  
Author(s):  
Samuel Röhl ◽  
Anders Arner ◽  
Kenneth Caidahl ◽  
Ulf Hedin ◽  
Ljubica Perisic Matic ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Common Carotid Artery ◽  
High Frequency ◽  
Matrix Metalloproteases ◽  
Histological Evaluation ◽  
Control Group ◽  
High Frequency Ultrasound ◽  
Post Surgery ◽  
The Right ◽  
Frequency Ultrasound

Objective: Proprotein convertases (PCSKs) process matrix metalloproteases and cytokines but their function in vasculature is largely unknown. Previously, we demonstrated upregulation of PCSK6 in atherosclerotic plaques, localization to smooth muscle cells in the fibrous cap and positive correlation to inflammation, extracellular matrix remodeling and cytokines. Here, our aim was to evaluate the effects of PCSK6 on flow-mediated vascular remodeling in mice using high-frequency ultrasound and myography. Materials and Methods: PCSK6 -/- and C57Bl/6J mice were compared in this study divided in baseline control and increased flow groups. Increased flow was created in the right common carotid artery (CCA) by ligation of the left CCA. All animals were subjected to high-frequency ultrasound examination prior to surgery, at 3 and 5 weeks after surgery. Upon euthanization 6 weeks post-surgery the right CCA was harvested for myography evaluation, subsequently fixed at optimal stretch and prepared for histological evaluation. Results: The vascular circumference at optimal stretch in myography was strongly correlated (Pearson r=0.74, p<0.001) and in agreement with the diastolic circumference measured by high-frequency ultrasound in examined animals. A significant increase in diastolic circumference was seen at 3 and 5 weeks after surgery in PCSK6 -/- mice with increased flow compared to PCSK6 -/- control group (1.6±0.15 mm vs 1.4±0.08 mm, p<0.05 and 1.7±0.09 mm vs 1.4±0.12 mm, p<0.01). Myography revealed a significant increase in circumference at optimal stretch (1.7±0.21 mm vs 1.4±0.08 mm, p<0.05) in PCSK6 -/- mice subjected to increased flow compared to PCSK6 -/- control group. A significant flow-mediated increase in medial contractility was identified (0.68±0.14 mN/mm vs 0.45±0.11 mN/mm, p<0.05) in C57Bl/6J mice compared to C57Bl/6J control where as an absence of flow-mediated increase in medial contractility was seen in PCSK6 -/- mice. Conclusion: Absence of PCSK6 increases outward remodeling and reduces medial contractility in response to increased blood flow.

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