scholarly journals Shear Wave Elastography of the Plantar Fascia: Comparison between Patients with Plantar Fasciitis and Healthy Control Subjects

2021 ◽  
Vol 10 (11) ◽  
pp. 2351
Author(s):  
Daniel Baur ◽  
Christoph Schwabl ◽  
Christian Kremser ◽  
Mihra S. Taljanovic ◽  
Gerlig Widmann ◽  
...  
Keyword(s):  
Shear Wave ◽  
Healthy Subjects ◽  
Plantar Fasciitis ◽  
Color Doppler ◽  
Shear Wave Elastography ◽  
Plantar Fascia ◽  
Thickness Measurement ◽  
Institutional Review Boards ◽  
Institutional Review ◽  
Healthy Control

Background: The purpose of this study was to evaluate plantar fasciae of healthy subjects and patients with plantar fasciitis by shear wave velocity (SWV) and stiffness with correlation to B-Mode and color Doppler ultrasonography (CDUS) and to establish cut-off values. Methods: This observational study was conducted with the approval of the Institutional Review Boards (IRBs) of our institution. 108 unilateral plantar fasciae were evaluated by including 87 consecutive patients (mean age 51.7; range: 29–82) (66 women and 21 men) with plantar fasciitis and 21 asymptomatic age matched healthy volunteers (mean age 47.3; range: 32–58) (15 women and 6 men). All patients were prospectively imaged between July 2018 and March 2019. B-mode US was used to measure thickness and CDUS to grade vascularity. SWE measurements were repeated 3 times and mean was used for statistical analysis. Results: Mean SWV value in healthy subjects was 6.94 m/s and in patients 4.98 m/s with a mean stiffness value of 152.88 kPa and 93.54 kPa respectively (p < 0.001). For SWV a cut-off value of 6.16 m/s had a specificity of 80.95% and sensitivity of 79.31%. For stiffness a cut-off value of 125.57 kPa had a specificity of 80.95% and sensitivity of 80.46%. No correlation to CDUS was found. The mean thickness of healthy fascias was 3.3 mm (range 2.4–3.9) compared to 6.1 mm (range 2.0–22.0) in plantar fasciitis (p < 0.001) with no correlation to SWV or to stiffness (r² = 0.02, p = 0.06). Conclusion: SWE allows quantitative assessment of plantar fascia stiffness, which decreases in patients with plantar fasciitis. No correlation to the thickness of the plantar fascia was found, therefore it represents an independent factor for the diagnosis of plantar fasciitis and could be helpful in addition to thickness measurement in unclear cases.

Is 2D SWE sufficient as clinical diagnosis in patients with plantar fasciitis?

2021 ◽  
pp. 028418512110589
Author(s):  
Engin Beydoğan ◽  
Atilla Yalçın
Keyword(s):  
Plantar Fasciitis ◽  
Shear Wave Elastography ◽  
Plantar Fascia ◽  
Thickness Measurement ◽  
Clinical Findings ◽  
Imaging Method ◽  
Control Groups ◽  
Measurement Results ◽  
Healthy Control ◽  
Foot Function

Background The use of shear wave elastography (SWE) seems to be an important imaging method in the diagnosis of plantar fasciitis (PF). Purpose To compare patients diagnosed with PF with similar and young healthy control groups in terms of B-mode ultrasound (US) and SWE results and to evaluate the elasticity of the plantar fascia. Material and Methods A total of 140 feet of 70 participants were evaluated, including 30 patients and 40 healthy individuals as the control. Clinical, B-mode US, and SWE evaluations were performed for each patient. In addition, American Orthopedic Foot and Ankle Score (AOFAS) was calculated to evaluate pain and foot function in both groups. Results Of the patients in the PF group, 40 (88%) were women and the healthy control groups had similar sex distributions ( P = 0.23). The AOFAS score was lower in feet with PF compared to the other groups ( P < 0.001). Of 30 patients with PF, 15 (50%) had bilateral PF and 15 (50%) unilateral PF. In addition, ≥4 mm thickness measurement, which was used as a diagnostic criterion for PF as a US finding, could be shown in 11 (73.3%) patients with unilateral PF and 6 (40%) patients with bilateral PF. Conclusion In conclusion, the evaluation of the diagnosis of PF with clinical findings and regular follow-up of measurements with SWE can provide measurement results with higher sensitivity in the diagnosis of PF.

scholarly journals Combination of shear wave elastography and BI-RADS in identification of solid breast masses

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Xue Zheng ◽  
Fei Li ◽  
Zhi-Dong Xuan ◽  
Yu Wang ◽  
Lei Zhang
Keyword(s):  
Shear Wave ◽  
Breast Imaging ◽  
Color Doppler ◽  
Shear Wave Elastography ◽  
Definitive Diagnosis ◽  
Pathological Examination ◽  
Diagnostic Specificity ◽  
Breast Masses ◽  
Malignant Breast ◽  
Grade Ii

Abstract Background To explore the value of quantitative shear wave elastography (SWE) plus the Breast Imaging Reporting and Data System (BI-RADS) in the identification of solid breast masses. Methods A total of 108 patients with 120 solid breast masses admitted to our hospital from January 2019 to January 2020 were enrolled in this study. The pathological examination served as the gold standard for definitive diagnosis. Both SWE and BI-RADS grading were performed. Results Out of the 120 solid breast masses in 108 patients, 75 benign and 45 malignant masses were pathologically confirmed. The size, shape, margin, internal echo, microcalcification, lateral acoustic shadow, and posterior acoustic enhancement of benign and malignant masses were significantly different (all P < 0.05). The E mean, E max, SD, and E ratio of benign and malignant masses were significantly different (all P < 0.05). The E min was similar between benign and malignant masses (P > 0.05). The percentage of Adler grade II-III of the benign masses was lower than that of the malignant masses (P < 0.05). BI-RADS plus SWE yielded higher diagnostic specificity and positive predictive value than either BI-RADS or SWE; BI-RADS plus SWE yielded the highest diagnostic accuracy among the three methods (all P < 0.05). Conclusion SWE plus routine ultrasonography BI-RADS has a higher value in differentiating benign from malignant breast masses than color doppler or SWE alone, which should be further promoted in clinical practice.

Binary Pattern Color Doppler Shear Wave Elastography*

2021 ◽  
Author(s):  
Norma Hermawan ◽  
Aoi Sato ◽  
Mizuki Fujiwara ◽  
Takuro Ishii ◽  
Yoshihiro Hagiwara ◽  
...  
Keyword(s):  
Shear Wave ◽  
Color Doppler ◽  
Shear Wave Elastography

scholarly journals Statistical and Texture Descriptors of Symptomatic Plantar Fasciitis Using Ultrasound Shear Wave Elastography

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 120146-120159
Author(s):  
Hongmei Zhang ◽  
Lei Xu ◽  
Zhihui Liu ◽  
Shukuan Lu ◽  
Jichao Yin ◽  
...  
Keyword(s):  
Shear Wave ◽  
Plantar Fasciitis ◽  
Shear Wave Elastography

Breast Cancer Imaging by Color Doppler Shear Wave Elastography

2017 ◽  
Vol 43 ◽  
pp. S90
Author(s):  
Yoshiki Yamakoshi ◽  
Takahito Nakajima ◽  
Mayuko Yamazaki ◽  
Kana Taniuchi ◽  
Yoshino Ishimori ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Shear Wave ◽  
Cancer Imaging ◽  
Color Doppler ◽  
Shear Wave Elastography ◽  
Breast Cancer Imaging

Shear Wave Imaging of Breast Tissue by Color Doppler Shear Wave Elastography

2017 ◽  
Vol 64 (2) ◽  
pp. 340-348 ◽  
Author(s):  
Yoshiki Yamakoshi ◽  
Takahito Nakajima ◽  
Toshihiro Kasahara ◽  
Mayuko Yamazaki ◽  
Ren Koda ◽  
...  
Keyword(s):  
Shear Wave ◽  
Breast Tissue ◽  
Color Doppler ◽  
Shear Wave Elastography ◽  
Shear Wave Imaging ◽  
Wave Imaging

scholarly journals Evaluation of the optic nerve using strain and shear wave elastography in patients with multiple sclerosis and healthy subjects

2017 ◽  
Vol 19 (1) ◽  
pp. 39 ◽  
Author(s):  
Mikail İnal ◽  
Sinan Tan ◽  
Erhan M. Yumusak ◽  
Mehmet Hamdi Şahan ◽  
Murat Alpua ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Optic Nerve ◽  
Healthy Volunteers ◽  
Shear Wave ◽  
Healthy Subjects ◽  
Shear Wave Elastography ◽  
Optic Nerves ◽  
Type 3

Aims: Our aim was to evaluate the elasticity features of the optic nerve using strain (SE) and shear wave elastography (SWE) in multiple sclerosis (MS) patients in comparison with healthy subjects. Material and methods: One hundred and seven optic nerves from 54 MS patients and 118 optic nerves from 59 healthy subjects were examined prospectively by SE and SWE. Optic nerves were divided into three types in accordance to the elasticity designs, as follows: type 1 predominantly blue (hardest tissue); type 2 predominantly blue/green (hard tissue); and type 3 predominantly green (intermediate tissue). Quantitative measurements of optic nerve hardness with SWE were analyzed in kilopascals. Results: Elastographic images from healthy volunteers showed mostly type 3 optic nerves (61.9%); type 2 was also found (38.1%), but type 1 was not observed. Elastographic examination of MS patients showed mostly type 2 optic nerves (88%), while some type 1 (4.6%) and type 3 optic nerves (6.5%) were rarely observed. There was a statistically significant difference in terms of elasticity patterns between patients and healthy volunteers (p<0.001). Statistically significant differences were observed between patients and healthy volunteers in the analysis of SWE values (10.381±3.48 kPa and 33.87±11.64 p<0.001). The receiver operating characteristic curve analysis was perfect (0.993; 95% confidence interval [CI]=0.971–0.999), and a cut-off value of 18.3 kPa shear had very high sensitivity and specificity for the patient group. No significant differences were observed between patients with and without previous optic neuritis. Conclusion: SE and SWE examination findings concerning the optic nerve in MS patients demonstrated remarkable differences according to the healthy group.

scholarly journals A Deep Siamese-Based Plantar Fasciitis Classification Method Using Shear Wave Elastography

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 130999-131007 ◽  
Author(s):  
Junling Gao ◽  
Lei Xu ◽  
Ayache Bouakaz ◽  
Mingxi Wan
Keyword(s):  
Shear Wave ◽  
Plantar Fasciitis ◽  
Shear Wave Elastography ◽  
Classification Method
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