scholarly journals Shear wave elastography of ulnar nerve in arm: An observational study for evaluation of performance

2021 ◽  
Vol 3 ◽  
pp. 3-9
Author(s):  
Shamrendra Narayan ◽  
Nilotpal Choudhury ◽  
Ajai Kumar Singh ◽  
Tushar Anand ◽  
Gaurav Raj ◽  
...  
Keyword(s):  
Observational Study ◽  
Shear Wave ◽  
Ulnar Nerve ◽  
Prospective Observational Study ◽  
Tibial Nerve ◽  
Shear Wave Elastography ◽  
Evaluation Of Performance ◽  
Compressive Neuropathy ◽  
Interclass Correlation ◽  
Ultrasound System

Objectives: The performance of shear wave elastography (SWE) for peripheral nerve pathology, predominantly compressive neuropathy, has been studied with the median nerve, sciatic nerve, and tibial nerve. However, studies for ulnar nerve are limited in literature. The aim of the study was to study the performance of SWE for ulnar nerve in arm by analyzing the correlation of elasticity value by two transducers of the same ultrasound system. Material and Methods: This was a prospective observational study. Elasticity of ulnar nerve was measured in the mid-arm and supracondylar region in longitudinal and transverse planes with two different transducers of the same ultrasound system. The reliability of measurement was assessed by interclass correlation of values obtained. Results: Ninety-two ulnar nerve measurement sets were analyzed. The ages of the patients ranged from 14 years to 76 years, with a median age of 50. The SWE values obtained by two probes showed a weak interclass correlation coefficient value <0.5. Conclusion: Quantitative SWE measurements of the ulnar nerve in the arm by two transducers showed a weak interclass correlation. It should be used with caution as a diagnostic tool with a universally acceptable cut off values.

scholarly journals Post-Operative Assessment of Ulnar Nerve Tension Using Shear-Wave Elastography

2021 ◽  
Vol 13 (3) ◽  
pp. 469-476
Author(s):  
Sebastien Durand ◽  
Wassim Raffoul ◽  
Thierry Christen ◽  
Nadine Pedrazzi
Keyword(s):  
Elastic Modulus ◽  
Shear Wave ◽  
Ulnar Nerve ◽  
Shear Wave Elastography ◽  
Elbow Flexion ◽  
Ulnar Nerve Compression ◽  
Nerve Decompression ◽  
Shear Elastic Modulus ◽  
Anterior Transposition ◽  
Operative Assessment

Background: Ulnar nerve compression at the elbow level is the second-most common entrapment neuropathy. The aim of this study was to use shear-wave elastography for the quantification of ulnar nerve elasticity in patients after ulnar nerve decompression with anterior transposition and in the contralateral non-operative side. Method: Eleven patients with confirmed diagnosis and ulnar nerve decompression with anterior transposition were included and examinations were performed on an AixplorerTM ultrasound system (Supersonic Imagine, Aix-en-Provence, France). Results: We observed significant differences at 0-degree (p < 0.001), 45-degree (p < 0.05), 90-degree (p < 0.01) and 120-degree (p < 0.001) elbow flexion in the shear elastic modulus of the ulnar nerve in the operative and non-operative sides. There were no statistically significant differences between the elasticity values of the ulnar nerve after transposition at 0-degree elbow flexion and in the non-operative side at 120-degree elbow flexion (p = 0.39), or in the ulnar nerve after transposition at 120-degree elbow flexion and in the non-operative side at 0-degree elbow flexion (p = 0.09). Conclusion: Shear-wave elastography has the potential to be used postoperatively as a method for assessing nerve tension noninvasively by the estimation of mechanical properties, such as the shear elastic modulus.

scholarly journals COMPARISON OF SHEAR WAVE ELASTOGRAPHY (SUPERSONIC) WITH LIVER BIOPSY IN A COHORT OF PATIENTS IN A COUNTRY OF MEDIUM-INCOME: OBSERVATIONAL STUDY

2020 ◽  
Author(s):  
Jhon Edison Prieto Ortiz ◽  
SANTIAGO SANCHEZ PARDO ◽  
ROBIN GERMAN PRIETO ORTIZ ◽  
NATHALY Garzón-Orjuela ◽  
James S Ford ◽  
...  
Keyword(s):  
Liver Biopsy ◽  
Observational Study ◽  
Shear Wave ◽  
Shear Wave Elastography

Shear wave elastography as a new method to identify parotid lymphoma in primary Sjögren Syndrome patients: an observational study

2020 ◽  
Vol 40 (8) ◽  
pp. 1275-1281 ◽  
Author(s):  
Maria Bădărînză ◽  
Oana Serban ◽  
Lavinia Maghear ◽  
Corina Bocsa ◽  
Mihaela Micu ◽  
...  
Keyword(s):  
Observational Study ◽  
Shear Wave ◽  
Shear Wave Elastography ◽  
Sjögren Syndrome ◽  
New Method ◽  
Sjogren Syndrome ◽  
Primary Sjögren Syndrome

scholarly journals Reliability of shear-wave elastography in assessing thoracolumbar fascia elasticity in healthy male

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Baizhen Chen ◽  
Hongzhou Zhao ◽  
Linrong Liao ◽  
Zhijie Zhang ◽  
Chunlong Liu
Keyword(s):  
Shear Modulus ◽  
Shear Wave ◽  
Shear Wave Elastography ◽  
Biomechanical Study ◽  
Upper Body ◽  
Healthy Male ◽  
Thoracolumbar Fascia ◽  
Minimum Detectable Change ◽  
Interclass Correlation ◽  
Male Subjects

AbstractThe objectives of this study were to examine the intra and inter-operator reliability of shear wave elastography (SWE) device in quantifying the shear modulus of thoracolumbar fascia (TLF) and the device’s abilities to examine the shear modulus of the TLF during upper body forward. Twenty healthy male subjects participated in this study (mean age: 18.4 ± 0.7 years). Two independent operators performed the shear modulus of TLF during upper body forward using SWE, and interclass correlation coefficient (ICC) and minimum detectable change (MDC) were calculated. The shear modulus of the TLF was quantified by operator A using SWE at upper body forward 60°. The intra-operator (ICC = 0.860–0.938) and inter-operator (ICC = 0.904–0.944) reliabilities for measuring the shear modulus of the TLF with the upper body forward 0° were rated as both excellent, and the MDC was 4.71 kPa. The TLF shear modulus of upper body forward 60°was increased 45.5% (L3) and 55.0% (L4) than that of upper body forward 0°. The results indicate that the SWE is a dependable tool to quantify the shear modulus of TLF and monitor its dynamic changes. Therefore, this device can be used for biomechanical study and intervention experiments of TLF.

scholarly journals Shear wave elastography of the tibial nerve in healthy subjects

Medicine ◽  
2021 ◽  
Vol 100 (3) ◽  
pp. e23999
Author(s):  
Mohamed A. Bedewi ◽  
Ayman A. Elsifey ◽  
Tariq Alfaifi ◽  
Mamdouh A. Kotb ◽  
Mohamed S. Abdelgawad ◽  
...  
Keyword(s):  
Shear Wave ◽  
Healthy Subjects ◽  
Tibial Nerve ◽  
Shear Wave Elastography

Dual confocal ultrasound system for shear wave elastography

2008 ◽  
Vol 123 (5) ◽  
pp. 3914-3914
Author(s):  
Michael D. Gray ◽  
James S. Martin ◽  
Peter H. Rogers
Keyword(s):  
Shear Wave ◽  
Shear Wave Elastography ◽  
Ultrasound System

scholarly journals Cardiac Shear Wave Elastography Using a Clinical Ultrasound System

2017 ◽  
Vol 43 (8) ◽  
pp. 1596-1606 ◽  
Author(s):  
Mihai Strachinaru ◽  
Johan G. Bosch ◽  
Bas M. van Dalen ◽  
Lennart van Gils ◽  
Antonius F.W. van der Steen ◽  
...  
Keyword(s):  
Shear Wave ◽  
Shear Wave Elastography ◽  
Ultrasound System
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