Diagnostic Value of Dynamic High-Frequency Ultrasound for the Slipping Rib and twelfth Rib Syndrome: A Case Series With Review.

2020 ◽  
Vol 16 ◽  
Author(s):  
Nalin G. Patel ◽  
Dhruvkumar M. Patel ◽  
Mukundkumar V. Patel ◽  
Maitri M. Patel ◽  
Tanmay R. Patel ◽  
...  
Keyword(s):  
Nerve Block ◽  
High Frequency ◽  
Imaging Modality ◽  
Case Series ◽  
Diagnostic Value ◽  
High Frequency Ultrasound ◽  
Imaging Tool ◽  
Loin Pain ◽  
Upper Abdominal ◽  
Frequency Ultrasound

Background: High-frequency ultrasound (HFUS) is a mobile, radiation-free imaging tool for the diagnosis of musculoskeletal disorders. We aim to demonstrate the diagnostic value of dynamic HFUS for undiagnosed lower chest, upper abdomen, and loin pain with this case series. Case series: A cricketer presented with long-standing left-sided dull ache lower chest and upper abdominal pain, aggravated on exertion and leaning forward. His previous laboratory and previous imaging tests were unrevealing. Dynamic HFUS of his left ribs during hooking maneuver demonstrated slipping of the eighth rib over the seventh rib associated with clicking. He also reported tenderness over this region. He was diagnosed as slipping rib syndrome (SRS), and was treated with the eighth nerve block under the HFUS guidance. The second and third cases presented with chronic undiagnosed waxing and waning loin pain despite extensive laboratory and radiological workup. Both patients demonstrated twelfth rib HFUS probe tenderness in sitting position with a specific movement that reproduced the pain during dynamic HFUS study. The diagnosis of twelfth rib syndrome (TRS) was confirmed, and treated successfully with a local intercostal nerve block. Review of the literature: HFUS is the most underutilized imaging tool for the diagnosis of unexplained upper abdominal and lower chest pain syndromes. We identified only a few such reported cases managed with the help of HFUS. Conclusion: The dynamic HFUS is a valuable imaging modality for the undiagnosed lower chest, upper abdominal, or loin pain.

High-Frequency and Ultra-High Frequency Ultrasound: Musculoskeletal Imaging up to 70 MHz

2020 ◽  
Vol 24 (02) ◽  
pp. 125-134 ◽  
Author(s):  
Domenico Albano ◽  
Giacomo Aringhieri ◽  
Carmelo Messina ◽  
Luca De Flaviis ◽  
Luca Maria Sconfienza
Keyword(s):  
High Frequency ◽  
Peripheral Nerves ◽  
Imaging Technique ◽  
Case Series ◽  
Image Resolution ◽  
Ultrastructural Changes ◽  
High Frequency Ultrasound ◽  
Ultra High Frequency ◽  
Time Dynamic ◽  
Frequency Ultrasound

AbstractMusculoskeletal (MSK) ultrasound has well-established advantages, able to investigate very small structures with high resolution and a quick and real-time dynamic evaluation with the possibility of contralateral comparison. Thus ultrasound has kept its own almost exclusive fields of application in daily clinical practice, and it is considered the first-level imaging technique to assess tendons, bursae, and capsuloligamentous structures of small peripheral joints as well as peripheral nerves. Up to now, however, clinical MSK ultrasound imaging could not go beyond the first 1 to 2 cm under the skin, using high-frequency probes up to 18 to 20 MHz with spatial resolution just below millimeters. We present the impressive technical advancements leading to image resolution as low as 30 µm using ultra-high frequency ultrasound (UHFUS) probes up to 70 MHz. High-frequency ultrasound and UHFUS, with frequencies ranging from 22 to 70 MHz, are promising tools to evaluate very superficial structures. In the MSK system, only two articles have assessed its value in limited case series. Future developments may be aimed to better assess ultrastructural changes of very superficial peripheral nerves and other thin structures such as pulleys, retinacula, and tendons.

scholarly journals Combination of high-frequency ultrasound and virtual touch tissue imaging and quantification improve the diagnostic efficiency for mild carpal tunnel syndrome

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Zhen-han Lai ◽  
Shu-ping Yang ◽  
Hao-lin Shen ◽  
Yi Luo ◽  
Xiao-han Cai ◽  
...  
Keyword(s):  
Carpal Tunnel Syndrome ◽  
High Frequency ◽  
Diagnostic Value ◽  
Tissue Imaging ◽  
Diagnostic Efficiency ◽  
High Frequency Ultrasound ◽  
Tunnel Syndrome ◽  
Virtual Touch Tissue Imaging ◽  
Frequency Ultrasound ◽  
Volunteer Group

Abstract Background Carpal tunnel syndrome (CTS) is the most common entrapment symptom in the peripheral nerves. High-frequency ultrasound (HFUS) is widely used in the diagnosis of CTS. Virtual Touch Tissue Imaging and Quantification (VTIQ), which provides more information about the hardness of organization, is used to diagnose CTS. However, the data of diagnostic value of them in various degrees of CTS are limited. Whether the combination of HFUS and VTIQ can improve the diagnostic efficiency also remains unknown. The study aimed to explore the diagnostic value of HFUS and VTIQ in various degrees of CTS and whether combination of HFUS and VTIQ could improve the diagnostic efficiency of CTS. Methods A collection and analysis of 133 CTS patients and 35 volunteers from January 2016 to January 2019 were performed. We compared the clinical characteristics, cross-sectional area (CSA) value and shear wave velocity SWVmean value of CTS group with volunteer group. Results The CSA value and SWVmean value of CTS cohort were significantly higher than volunteer group (10.79 ± 2.88 vs. 8.06 ± 1.39, p < 0.001, 4.36 ± 0.95 vs. 3.38 ± 1.09, p < 0.001, respectively). The area under the curve (AUC) of receiver operating characteristic (ROC) curve of CSA value and SWVmean value were 0.794 and 0.757, respectively. Hierarchical analysis of CSA value and SWVmean value showed that the AUC in the moderate and severe CTS group were higher than in mild CTS group. Furthermore, the CSA value combined with SWVmean value used to diagnose mild CTS was 0.758, which was higher than that of single CSA value or single SWVmean value. Conclusions Both HFUS and VTIQ technology were feasible to evaluate CTS. HFUS was suitable for use in diagnosis of moderate and severe CTS. For mild CTS, combination of HFUS and VTIQ was relevant to improve the diagnostic efficiency of CTS.

A Complete Computational Model of Ultrasound Vibro-Acoustography

2006 ◽  
Author(s):  
Alison E. Malcolm ◽  
Fernando Reitich ◽  
Jiaqi Yang ◽  
Mostafa Fatemi ◽  
James F. Greenleaf
Keyword(s):  
High Resolution ◽  
Optimal Design ◽  
Computational Model ◽  
High Frequency ◽  
Imaging Modality ◽  
Low Frequency ◽  
High Frequency Ultrasound ◽  
Linear Interaction ◽  
Modeling Simulation ◽  
Frequency Ultrasound

Ultrasound vibro-acoustography is a novel medical imaging modality that combines the high resolution of high-frequency ultrasound with the speckle-free images obtained using low-frequency methods. This imaging modality relies on the non-linear interaction of two high frequency beams at slightly different frequencies. We describe the physics of ultrasound vibro-acoustography and outline a strategy for its modeling, simulation, and optimal design.

scholarly journals High-frequency ultrasound in clinical dermatology: a review

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Jack Levy ◽  
Devon L. Barrett ◽  
Nile Harris ◽  
Jiwoong Jason Jeong ◽  
Xiaofeng Yang ◽  
...  
Keyword(s):  
High Frequency ◽  
Imaging Modality ◽  
Normal Skin ◽  
Objective Assessment ◽  
Deep Fascia ◽  
High Frequency Ultrasound ◽  
Diagnostic Management ◽  
Cosmetic Dermatology ◽  
Frequency Ultrasound ◽  
Clinical Dermatology

Abstract Background Ultrasound was first introduced in clinical dermatology in 1979. Since that time, ultrasound technology has continued to develop along with its popularity and utility. Main text summary Today, high-frequency ultrasound (HFUS), or ultrasound using a frequency of at least 10 megahertz (MHz), allows for high-resolution imaging of the skin from the stratum corneum to the deep fascia. This non-invasive and easy-to-interpret tool allows physicians to assess skin findings in real-time, enabling enhanced diagnostic, management, and surgical capabilities. In this review, we discuss how HFUS fits into the landscape of skin imaging. We provide a brief history of its introduction to dermatology, explain key principles of ultrasonography, and review its use in characterizing normal skin, common neoplasms of the skin, dermatologic diseases and cosmetic dermatology. Conclusion As frequency advancements in ultrasonography continue, the broad applications of this imaging modality will continue to grow. HFUS is a fast, safe and readily available tool that can aid in diagnosing, monitoring and treating dermatologic conditions by providing more objective assessment measures.

scholarly journals Ovarian imaging in the mouse using ultrasound biomicroscopy (UBM): a validation study

2009 ◽  
Vol 21 (4) ◽  
pp. 579 ◽  
Author(s):  
Carmen N. Mircea ◽  
Marla E. Lujan ◽  
Rajesh S. Jaiswal ◽  
Jaswant Singh ◽  
Gregg P. Adams ◽  
...  
Keyword(s):  
Validation Study ◽  
High Frequency ◽  
Ultrasound Biomicroscopy ◽  
Human Reproduction ◽  
Corpora Lutea ◽  
High Frequency Ultrasound ◽  
Perfect Agreement ◽  
Ultrasound Waves ◽  
Imaging Tool ◽  
Frequency Ultrasound

The mouse is a well accepted model for studies of human reproduction despite little being known about follicle dynamics in this species. Longitudinal studies of mouse folliculogenesis have been hampered by the lack of an appropriate imaging tool. Ultrasound biomicroscopy (UBM) may overcome this obstacle as it confers near-microscopic resolution through the use of high-frequency ultrasound waves. The objective of the present study was to determine whether UBM could be used to count and measure ovarian follicles and corpora lutea (CL) reliably in mice. Ovaries of 25 adult CD-1 mice were imaged using a 55-MHz transducer and then excised and processed for histology. Follicles and CL were counted and measured from digitally stored UBM cine-loops and photographed histological sections. Differences between techniques were assessed by Bland-Altman agreement analyses. Follicle counts yielded by the two techniques varied by only ± 1 follicle when follicles ranged between 300 and 499 μm. Perfect agreement among counts was evident when follicles were >500 μm. The total number of CL was accurately estimated using UBM; however, the number of 350–699 μm CL was underestimated and the number of CL ≥700 μm was overestimated. In conclusion, UBM can be used reliably to count and measure follicles in mice.

SONOGRAPHIC EVALUATION OF ANTERIOR ABDOMINAL WALL MASS AND DIAGNOSTIC ACCURACY OF HIGH FREQUENCY ULTRASOUND.

2021 ◽  
pp. 51-52
Author(s):  
G. Gomathi
Keyword(s):  
Diagnostic Accuracy ◽  
Abdominal Wall ◽  
High Frequency ◽  
Anterior Abdominal Wall ◽  
Imaging Modality ◽  
Clinical Manifestations ◽  
High Frequency Ultrasound ◽  
Wall Mass ◽  
Frequency Ultrasound ◽  
Wall Lesions

Aim :Evaluation of anterior abdominal wall masses using high frequency ultrasound to nd out varoius causes of anterior abdominal wall mass and diagnostic accuracy of high frequency ultrasound. Materials and Methods: 50 patients with the clinical manifestations of various anterior abdominal wall lesions were included in this study. All patients were examined the anterior abdominal wall using 7.0-12.0 MHz high-frequency linear transducer with Color Doppler . Results: Incisional hernia was the predominant anterior abdominal wall lesions followed by ventral hernias, lipomas, and hematomas cases. Least common was scar endometriosis,anterior abdominal wall sarcoma. the high-resolution ultrasound had an overall 100% accuracy for abdominal wall lesions. Conclusion: High-frequency sonography is an accurate diagnostic imaging modality in anterior abdominal wall lesions and guide to management aspect.

scholarly journals Micro-ultrasound for preclinical imaging

2011 ◽  
Vol 1 (4) ◽  
pp. 576-601 ◽  
Author(s):  
F. Stuart Foster ◽  
John Hossack ◽  
S. Lee Adamson
Keyword(s):  
High Frequency ◽  
Normal Development ◽  
High Frequency Ultrasound ◽  
Preclinical Imaging ◽  
Non Invasive ◽  
The Past ◽  
Imaging Tool ◽  
Upper Limits ◽  
New Applications ◽  
Frequency Ultrasound

Over the past decade, non-invasive preclinical imaging has emerged as an important tool to facilitate biomedical discovery. Not only have the markets for these tools accelerated, but the numbers of peer-reviewed papers in which imaging end points and biomarkers have been used have grown dramatically. High frequency ‘micro-ultrasound’ has steadily evolved in the post-genomic era as a rapid, comparatively inexpensive imaging tool for studying normal development and models of human disease in small animals. One of the fundamental barriers to this development was the technological hurdle associated with high-frequency array transducers. Recently, new approaches have enabled the upper limits of linear and phased arrays to be pushed from about 20 to over 50 MHz enabling a broad range of new applications. The innovations leading to the new transducer technology and scanner architecture are reviewed. Applications of preclinical micro-ultrasound are explored for developmental biology, cancer, and cardiovascular disease. With respect to the future, the latest developments in high-frequency ultrasound imaging are described.

Sign in / Sign up

Export Citation Format

Share Document