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

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 st...

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Main Authors: Daniel Baur, Christoph Schwabl, Christian Kremser, Mihra S. Taljanovic, Gerlig Widmann, Luca Maria Sconfienza, Judith Sztankay, Gudrun Feuchtner, Andrea S. Klauser
Format: Article
Language:English
Published: MDPI AG 2021-05-01
Series:Journal of Clinical Medicine
Subjects:
Online Access:https://www.mdpi.com/2077-0383/10/11/2351
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author Daniel Baur
Christoph Schwabl
Christian Kremser
Mihra S. Taljanovic
Gerlig Widmann
Luca Maria Sconfienza
Judith Sztankay
Gudrun Feuchtner
Andrea S. Klauser
author_facet Daniel Baur
Christoph Schwabl
Christian Kremser
Mihra S. Taljanovic
Gerlig Widmann
Luca Maria Sconfienza
Judith Sztankay
Gudrun Feuchtner
Andrea S. Klauser
author_sort Daniel Baur
collection DOAJ
description 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 (<i>p</i> < 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 (<i>p</i> < 0.001) with no correlation to SWV or to stiffness (r² = 0.02, <i>p</i> = 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.
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spelling doaj.art-9da9aa06ce48492aa409b4697c771d142023-11-21T21:39:32ZengMDPI AGJournal of Clinical Medicine2077-03832021-05-011011235110.3390/jcm10112351Shear Wave Elastography of the Plantar Fascia: Comparison between Patients with Plantar Fasciitis and Healthy Control SubjectsDaniel Baur0Christoph Schwabl1Christian Kremser2Mihra S. Taljanovic3Gerlig Widmann4Luca Maria Sconfienza5Judith Sztankay6Gudrun Feuchtner7Andrea S. Klauser8Radiology Department, Medical University Innsbruck, Anichstrasse 35, 6020 Innsbruck, AustriaRadiology Department, Medical University Innsbruck, Anichstrasse 35, 6020 Innsbruck, AustriaRadiology Department, Medical University Innsbruck, Anichstrasse 35, 6020 Innsbruck, AustriaBanner University Medical Center, Department of Medical Imaging, College of Medicine, The University of Arizona, Tucson, AZ 85724, USARadiology Department, Medical University Innsbruck, Anichstrasse 35, 6020 Innsbruck, AustriaUnit of Diagnostic and Interventional Radiology, I.R.C.C.S. Istituto Ortopedico Galeazzi, 20097 Milano, ItalyDepartment of Radiotherapy, Medical University of Innsbruck, 6020 Innsbruck, AustriaRadiology Department, Medical University Innsbruck, Anichstrasse 35, 6020 Innsbruck, AustriaRadiology Department, Medical University Innsbruck, Anichstrasse 35, 6020 Innsbruck, AustriaBackground: 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 (<i>p</i> < 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 (<i>p</i> < 0.001) with no correlation to SWV or to stiffness (r² = 0.02, <i>p</i> = 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.https://www.mdpi.com/2077-0383/10/11/2351color doppler ultrasonographyelastographyplantar fasciitisplantar fasciashear wave
spellingShingle Daniel Baur
Christoph Schwabl
Christian Kremser
Mihra S. Taljanovic
Gerlig Widmann
Luca Maria Sconfienza
Judith Sztankay
Gudrun Feuchtner
Andrea S. Klauser
Shear Wave Elastography of the Plantar Fascia: Comparison between Patients with Plantar Fasciitis and Healthy Control Subjects
Journal of Clinical Medicine
color doppler ultrasonography
elastography
plantar fasciitis
plantar fascia
shear wave
title Shear Wave Elastography of the Plantar Fascia: Comparison between Patients with Plantar Fasciitis and Healthy Control Subjects
title_full Shear Wave Elastography of the Plantar Fascia: Comparison between Patients with Plantar Fasciitis and Healthy Control Subjects
title_fullStr Shear Wave Elastography of the Plantar Fascia: Comparison between Patients with Plantar Fasciitis and Healthy Control Subjects
title_full_unstemmed Shear Wave Elastography of the Plantar Fascia: Comparison between Patients with Plantar Fasciitis and Healthy Control Subjects
title_short Shear Wave Elastography of the Plantar Fascia: Comparison between Patients with Plantar Fasciitis and Healthy Control Subjects
title_sort shear wave elastography of the plantar fascia comparison between patients with plantar fasciitis and healthy control subjects
topic color doppler ultrasonography
elastography
plantar fasciitis
plantar fascia
shear wave
url https://www.mdpi.com/2077-0383/10/11/2351
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