The efficacy of Ultra-High Frequency Ultrasonography in the diagnosis of intraoral lesions

2020 ◽  
Vol 129 (4) ◽  
pp. 401-410 ◽  
Author(s):  
Rossana Izzetti ◽  
Saverio Vitali ◽  
Giacomo Aringhieri ◽  
Davide Caramella ◽  
Marco Nisi ◽  
...  
Keyword(s):  
High Frequency ◽  
Ultra High Frequency ◽  
High Frequency Ultrasonography

The Application of Ultra-High-Frequency Ultrasound in Dermatology and Wound Management

2020 ◽  
Vol 19 (4) ◽  
pp. 334-340
Author(s):  
Rossana Izzetti ◽  
Teresa Oranges ◽  
Agata Janowska ◽  
Mario Gabriele ◽  
Filippo Graziani ◽  
...  
Keyword(s):  
High Frequency ◽  
Diagnostic Techniques ◽  
Diagnostic Workup ◽  
Wound Management ◽  
High Frequency Ultrasound ◽  
Ultra High Frequency ◽  
Promising Tool ◽  
Ulcerative Lesions ◽  
High Frequency Ultrasonography

The management of lower extremity wounds is frequently performed by means of clinical examination, representing a challenge for the clinician due to the various conditions that can potentially enter differential diagnosis. Several diagnostic techniques are available in the dermatologist’s arsenal as a support to diagnosis confirmation, including dermoscopy and ultrasonography. Recently, a novel ultrasonographic technique involving the use of ultra-high ultrasound frequencies has entered the scene, and appears a promising tool in the diagnostic workup of skin ulcerative lesions. The focus of this review is to discuss the potential role of ultra-high-frequency ultrasonography in the diagnostic workup of wounds in the light of the current applications of the technique.

Echoentomography: a novel non-destructive imaging of soft-body insects through ultra-high frequency ultrasonography (UHFUS)

2021 ◽  
Author(s):  
Renato Ricciardi ◽  
Giacomo Aringhieri ◽  
Francesco Faita ◽  
Giovanni Benelli ◽  
Chiara Boccaccio ◽  
...  
Keyword(s):  
High Frequency ◽  
Soft Body ◽  
Ultra High Frequency ◽  
High Frequency Ultrasonography ◽  
Non Destructive

scholarly journals The use of 33 MHz ultra-high-frequency ultrasonography for the evaluation of sweat glands in the axilla with osmidrosis

PLoS ONE ◽  
2021 ◽  
Vol 16 (5) ◽  
pp. e0251600
Author(s):  
Akira Shinaoka ◽  
Ryuichi Nakahara ◽  
Masanori Saeki
Keyword(s):  
High Frequency ◽  
Sweat Gland ◽  
Strong Relationship ◽  
Skin Surface ◽  
Sweat Glands ◽  
Histological Techniques ◽  
Ultra High Frequency ◽  
Eccrine Glands ◽  
Histological Data ◽  
High Frequency Ultrasonography

Background This study aimed to assess the use of 33 MHz ultra-high-frequency ultrasonography (33MHz-UHFUS) for evaluating axillary sweat glands with osmidrosis in comparison with histological techniques. Axillary osmidrosis is a common problem in Asian societies, and the number and size of apocrine sweat glands have a strong relationship with osmidrosis severity. Currently, there are no methods to evaluate sweat gland distribution non-invasively. Methods In this study, 35 skin specimens from 10 fresh human cadavers without osmidrosis and retrospective ultrasonographic images from 20 patients with osmidrosis were used. Skin specimens were embedded in paraffin, thinly sliced, and finally stained with hematoxylin and eosin. Histologically, the apocrine and eccrine glands were evaluated, and the top and bottom depths of follicles were measured from the skin surface. In 33 MHz ultrasonography images, the depths of sweat glands were measured, and the mean grey value was calculated using Image J. Results Compared to histological data, 33MHz-UHFUS could be used to identify sweat glands as a hyperechoic structure between the dermis and fat layer. Furthermore, it could evaluate sweat gland distribution but could not distinguish between types of sweat glands. Conclusions The distribution of sweat glands in the axilla can be non-invasively evaluated via 33MHz-UHFUS.

scholarly journals Ultra-High-Frequency Ultrasound in the Evaluation of Paediatric Pilomatricoma Based on the Histopathologic Classification

2021 ◽  
Vol 8 ◽  
Author(s):  
Li Li ◽  
Jiaosheng Xu ◽  
Siwei Wang ◽  
Jun Yang
Keyword(s):  
High Frequency ◽  
High Frequency Ultrasound ◽  
Female Ratio ◽  
Ultra High Frequency ◽  
Common Features ◽  
Deep Dermis ◽  
Grey Scale ◽  
High Frequency Ultrasonography ◽  
Echogenic Foci ◽  
Frequency Ultrasound

Background: Pilomatricoma (PM) is one of the most common benign tumours in children. However, the inaccuracy of preoperative diagnosis and evaluation is high. Non-invasive examinations, including dermoscopy and ultrasound are helpful for diagnosing and evaluating PM. To date, ultra-high-frequency ultrasonographic features of PM have been rarely studied.Objective: We aimed to investigate the ultra-high frequency ultrasonographic features of PM in a large paediatric cohort and to determine the associations of these features with the clinical features of different histological subtypes of PM.Methods: This was a retrospective study. Patients who had both preoperative ultra-high-frequency ultrasonographic evaluation and pathological diagnosis of PM were enrolled. A series of infantile haemangiomas and cutaneous cysts during the same period were included as controls. Histological findings, including the stage, calcifying type, and ultrasonographic features of each lesion, were described.Results: A total of 133 patients with PM were included, and 147 PM lesions were analysed. The male-to-female ratio was 1:1.58, and the median age of onset was 91 (range: 10–188) months. On ultra-high-frequency ultrasonography, PM presented as heterogeneous (144/147, 98.0%), well-demarcated (143/147, 97.3%), and hypoechoic (126/147, 85.7%) tumours located between the deep dermis and subcutaneous tissue (139/147, 94.6%). The most common features were internal echogenic foci (135/147, 91.8%), hypoechoic rim (133/147, 90.5%), and posterior acoustic shadowing (94/147, 63.9%). Fourteen (9.5%) lesions were histologically categorized in the early stage, 58 (39.5%) in the fully developed stage, 65 (44.2%) in the early regressive stage and 10 (6.8%) in the late regressive stage. Three calcifying types, including scattered dots, clumps and arcs, were observed on histologic examination, which corresponded well with grey-scale imaging on ultra-high-frequency ultrasonography. Each calcifying type was significantly different in various histological stages (P = 0.001), among which scattered dots were mainly present in the early and fully developed stage and arc-shaped calcifying were present in the regressive stages. Calcification was observed in skin cysts, while there was more frequent posterior enhancement, less frequent posterior shadowing, and hypoechoic rim than PM. Haemangioma also presented as a hypoechoic tumour on grey-scale imaging. However, haemangioma was homogeneous and rarely calcifying.Conclusions: PM is a heterogeneous, well-demarcated, hypoechoic tumour located between the deep dermis and the subcutis on ultra-high-frequency ultrasonography. The most common features are internal echogenic foci (calcifying) and hypoechoic rim. Calcifying types can help in the staging of PM. Ultra-high-frequency ultrasound is a useful tool for the diagnosis and evaluation of PM.

Ultra-High Frequency Ultrasound, A Promising Diagnostic Technique: Review of the Literature and Single-Center Experience

2020 ◽  
pp. 084653712094068
Author(s):  
Rossana Izzetti ◽  
Saverio Vitali ◽  
Giacomo Aringhieri ◽  
Marco Nisi ◽  
Teresa Oranges ◽  
...  
Keyword(s):  
Spatial Resolution ◽  
High Frequency ◽  
High Spatial Resolution ◽  
Human Subjects ◽  
Diagnostic Technique ◽  
High Frequency Ultrasound ◽  
Ultra High Frequency ◽  
Musculoskeletal Anatomy ◽  
High Frequency Ultrasonography

Objectives: Ultra-high frequency ultrasonography (UHFUS) is a recently introduced diagnostic technique which finds several applications in diverse clinical fields. The range of frequencies between 30 and 100 MHz allows for high spatial resolution imaging of superficial structures, making this technique suitable for the imaging of skin, blood vessels, musculoskeletal anatomy, oral mucosa, and small parts. However, the current clinical applications of UHFUS have never been analyzed in a consistent multidisciplinary manner. The aim of this study is to revise and discuss the current applications of UHFUS in different aspects of research and clinical practice, as well as to provide some examples of the current work-in-progress carried out in our center. Materials and Methods: A literature search was performed in order to retrieve articles reporting the applications of UHFUS both in research and in clinical settings. Inclusion criteria were the use of frequencies above 30 MHz and study design conducted in vivo on human subjects. Results: In total 66 articles were retrieved. The majority of the articles focused on dermatological and vascular applications, although musculoskeletal and intraoral applications are emerging fields of use. We also describe our experience in the use of UHFUS as a valuable diagnostic support in the fields of dermatology, rheumatology, oral medicine, and musculoskeletal anatomy. Conclusion: Ultra-high frequency ultrasonography application involves an increasing number of medical fields. The high spatial resolution and the superb image quality achievable allow to foresee a wider use of this novel technique, which has the potential to bring innovation in diagnostic imaging.

THE USE OF HIGH FREQUENCY ULTRASONOGRAPHY IN CHILDREN WITH ENTEROPATHY

2005 ◽  
Vol 26 (S 1) ◽  
Author(s):  
A Brodzisz ◽  
P Wieczorek ◽  
A Mroczkowska-Juchkiewicz ◽  
A Pawlowska-Kamieniak ◽  
A Papierkowski
Keyword(s):  
High Frequency ◽  
High Frequency Ultrasonography
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