Shear Wave and Strain Elastographic Features of the Brachial Plexus in Healthy Adults: Reliability of the Findings—a Pilot Study

Aslan, Ahmet; Aktan, A. Özdemir; Aslan, Mine; Gulseren, Yildiz; Kabaalioğlu, Adnan

doi:10.1002/jum.14584

Cited by 15 publications

(53 citation statements)

References 40 publications

(200 reference statements)

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“…Ischemia/reperfusion injury due to microvascular abnormalities, metabolic cascades, and end products activated by hyperglycemia, inflammatory processes, oxidative stress, and cellular factors in patients with DM may cause decreased blood flow, ischemia, and edema within the nerve, which finally lead to the axonal loss and nerve fiber degeneration called DPN . Ultrasound is the first‐line choice for in vivo imaging of peripheral nerve abnormalities and can show the cross‐sectional area, thickness, echogenicity, continuity, mass, vascularity, and mobility . Hypoechogenicity of the nerve and increases in the cross‐sectional area and thickness are commonly observed findings of entrapment neuropathies on US imaging .…”

Section: Discussionmentioning

confidence: 99%

“…The participants were asked not to move or tighten their upper or lower extremity muscles and fingers during SWE, and maximum care was taken not to stretch or compress the nerves. Maximum care was taken to prevent excessive pressure while the US probe was positioned over the nerves and to place the probe away from adjacent vascular structures . Color Doppler US was used to determine the adjacent artery and vein when needed.…”

Section: Methodsmentioning

confidence: 99%

“…Ultrasound (US) has been widely used for imaging peripheral neuropathy but has had unsatisfactory results . Shear wave elastography (SWE) is an advanced technique for displaying tissue elasticity by means of high‐frequency US waves in vivo and noninvasively . In recent studies, SWE showed promising results for displaying peripheral neuropathies in carpal tunnel syndrome, DM, Behçet disease, multiple sclerosis, and the brachial plexus .…”

mentioning

confidence: 99%

“…On the other hand, the assessment of peripheral nerves by SWE brings out new problems in clinical practice. There is a tendency to examine peripheral nerves on the longitudinal axis with regard to anisotropy of the peripheral nerves . Also, the elasticity of tissue on the longitudinal axis grows easily and faster compared to the elasticity on the transverse axis .…”

mentioning

confidence: 99%

“…Also, the elasticity of tissue on the longitudinal axis grows easily and faster compared to the elasticity on the transverse axis . However, imaging a peripheral nerve parallel to the US probe can be challenging for the optic nerve or brachial plexus or in an obese patient . Nevertheless, parallel images of peripheral nerves can mimic muscle fascia or nearby tendons.…”

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confidence: 99%

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Assessment of Peripheral Nerves With Shear Wave Elastography in Type 1 Diabetic Adolescents Without Diabetic Peripheral Neuropathy

Aslan

Emeksiz

et al. 2018

J of Ultrasound Medicine

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Objectives To investigate the utility of shear wave elastography (SWE) in detecting morphologic abnormalities of the median nerve and posterior tibial nerve in transverse and longitudinal axes in adolescents with type 1 diabetes mellitus (DM) without diabetic peripheral neuropathy (DPN). Methods The median nerves and posterior tibial nerves of 25 adolescents with diagnosis and follow‐up of type 1 DM without DPN and 32 healthy volunteers were evaluated with SWE by 2 observers on the transverse and longitudinal axes. The cross‐sectional area and thickness of the nerves and disease duration were noted, and probable associations of these parameters with SWE features were analyzed. Interobserver and intraobserver correlations were also examined. The statistical significance level was set at P < .05. Results Both the median nerve and posterior tibial nerve were smaller, thinner, and stiffer in the patient group for both observers on both axes. The disease duration weakly correlated with median nerve SWE features (r = 0.245–0391). The thickness and cross‐sectional area had no correlations with SWE features. Conclusions The median nerve and posterior tibial nerve in adolescents with type 1 DM without DPN have morphologic abnormalities that can be displayed by SWE regardless of the imaging axis. Shear wave elastography may have a potential role in subclinical DPN, but the reliability of the findings is not as high as desirable.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Assessment of Peripheral Nerves With Shear Wave Elastography in Type 1 Diabetic Adolescents Without Diabetic Peripheral Neuropathy

Aslan

Emeksiz

et al. 2018

J of Ultrasound Medicine

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Strain and shearwave sonoelastographic findings of quadriceps tendon in patients with chronic kidney disease. Are they reliable?

Gulseren

Aslan

Buz

2022

J of Clinical Ultrasound

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Aim In this study, we aimed to compare the strain (SE) and shear wave elastography (SWE) findings of the quadriceps tendons (QT) of the patients with chronic kidney disease (CKD) and healthy volunteers (HV), and estimate the reliability of the evaluations. Materials and Methods Twenty‐nine HV and twenty‐seven patients with CKD were enrolled. All sonoelastographic examinations were performed separately by two observers. The QT thickness (QTT), SWE, and SE findings including the tissue elastic modulus (EM), shear wave velocity (SWV), and the elasticity patterns were obtained and compared. Interobserver agreement was evaluated to test the reliability of the findings. Results The QT in CKD patients is thinner than HV (p = 0.001 for both observers). The elasticity patterns of QT were mostly intermediate stiffness for both observers (p < 0.05 for both observers). The mean EM values in the patient group were significantly higher than HV for both observers (p < 0.05 for both observers). The mean SWVs were significantly higher in the patient group (p < 0.05 for both observers). SWV showed weak, significant, and negative correlations with the hemodialysis (HD) duration (p < 0.05 for both observers). The interobserver agreements were moderate to excellent for QTT, EM, SWS, and SE patterns (p < 0.01 for all parameters). Conclusion QTT and its elasticity are decreased in patients with CKD. The QTT and SE patterns may be the choice to determine the elasticity in CKD patients with good reliability values rather than SWE. But, there is still debate on the reliability of sonoelastographic findings, to ensure standardization of the factors affecting reliability, they should be well understood.

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Ultrasound elastography for the evaluation of peripheral nerves: A systematic review

Wee

Simon

2019

Muscle and Nerve

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Peripheral nerve disorders are commonly encountered in clinical practice. Electrodiagnostic studies remain the cornerstone of the evaluation of nerve disorders. More recently, ultrasound has played an increasing complementary role in the neuromuscular clinic. Ultrasound elastography is a technique that measures the elastic properties of tissues. Given the histological changes that occur in diseased peripheral nerves, nerve ultrasound elastography has been explored as a noninvasive way to evaluate changes in nerve tissue composition. Studies to date suggest that nerve stiffness tends to increase in the setting of peripheral neuropathy, regardless of etiology, consistent with loss of more compliant myelin, and replacement with connective tissue. The aim of this systematic review is to summarize the current literature on the use of ultrasound elastography in the evaluation of peripheral neuropathy. Limitations of ultrasound elastography and gaps in current literature are discussed, and prospects for future clinical and research applications are raised.

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Shear Wave and Strain Elastographic Features of the Brachial Plexus in Healthy Adults: Reliability of the Findings—a Pilot Study

Abstract: The reliability and reproducibility of sonoelastography of the brachial plexus are low, and the appropriateness of this technique in this manner is controversial.

Cited by 15 publications

References 40 publications

Assessment of Peripheral Nerves With Shear Wave Elastography in Type 1 Diabetic Adolescents Without Diabetic Peripheral Neuropathy

Assessment of Peripheral Nerves With Shear Wave Elastography in Type 1 Diabetic Adolescents Without Diabetic Peripheral Neuropathy

Strain and shearwave sonoelastographic findings of quadriceps tendon in patients with chronic kidney disease. Are they reliable?

Ultrasound elastography for the evaluation of peripheral nerves: A systematic review

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