Ankle and Foot Ultrasound: Reliability of Side-to-Side Comparison of Small Anatomic Structures

Federica Rossi, Federico Zaottini, Riccardo Picasso, Carlo Martinoli, Alberto Stefano Tagliafico

Research output: Contribution to journalArticle

Abstract

Objectives: In sonography of clinically relevant small structures of the ankle and foot, the healthy contralateral side can be used as a reference to identify subtle abnormalities. Intrasubject side-to-side variability must be minimal. The aim of this study was to assess the reliability of side-to-side sonographic evaluation of small structures of the ankle and foot. Methods: Thirty healthy volunteers were prospectively studied. Small structures of the ankle and foot were evaluated bilaterally by 2 musculoskeletal radiologists in separate sessions. The deep peroneal nerve, superior extensor retinacula, calcaneofibular ligament, superior peroneal retinacula, tibialis posterior tendon, tibial nerve, Achilles tendon, plantaris tendon, plantar fascia, and sural nerve were considered. To assess intra- and interreader agreements, 30 (100%) examinations were repeated. A nonparametric statistic was used. Results: Data were not normally distributed (P >.001). Intrareader agreement was k = 0.67 (95% confidence interval, 0.57–0.78) and interreader agreement was k = 0.73 (95% confidence interval, 0.68–0.77). The mean values and standard deviation for all the structures were 0.36 ± 1.85 mm. The overall coefficient of variation was 18.5%. The intraclass correlation coefficient was 0.93 (95% confidence interval, 0.92–0.94). Conclusions: In ankle and foot sonography, the healthy contralateral side can be used as a reference during a real-time musculoskeletal ultrasound evaluation of small structures.

Original languageEnglish
Pages (from-to)2143-2153
Number of pages11
JournalJournal of Ultrasound in Medicine
Volume38
Issue number8
DOIs
Publication statusPublished - Jan 1 2019

Fingerprint

Ankle
Foot
Confidence Intervals
Tendons
Ultrasonography
Ankle Lateral Ligament
Tibial Nerve
Sural Nerve
Peroneal Nerve
Achilles Tendon
Fascia
Nonparametric Statistics
Healthy Volunteers

Keywords

  • ankle
  • comparison
  • foot
  • reliability
  • small structures
  • ultrasound

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging

Cite this

Ankle and Foot Ultrasound : Reliability of Side-to-Side Comparison of Small Anatomic Structures. / Rossi, Federica; Zaottini, Federico; Picasso, Riccardo; Martinoli, Carlo; Tagliafico, Alberto Stefano.

In: Journal of Ultrasound in Medicine, Vol. 38, No. 8, 01.01.2019, p. 2143-2153.

Research output: Contribution to journalArticle

Rossi, Federica ; Zaottini, Federico ; Picasso, Riccardo ; Martinoli, Carlo ; Tagliafico, Alberto Stefano. / Ankle and Foot Ultrasound : Reliability of Side-to-Side Comparison of Small Anatomic Structures. In: Journal of Ultrasound in Medicine. 2019 ; Vol. 38, No. 8. pp. 2143-2153.
@article{a6e81cc16f0a4249932bdcfa7ffecb33,
title = "Ankle and Foot Ultrasound: Reliability of Side-to-Side Comparison of Small Anatomic Structures",
abstract = "Objectives: In sonography of clinically relevant small structures of the ankle and foot, the healthy contralateral side can be used as a reference to identify subtle abnormalities. Intrasubject side-to-side variability must be minimal. The aim of this study was to assess the reliability of side-to-side sonographic evaluation of small structures of the ankle and foot. Methods: Thirty healthy volunteers were prospectively studied. Small structures of the ankle and foot were evaluated bilaterally by 2 musculoskeletal radiologists in separate sessions. The deep peroneal nerve, superior extensor retinacula, calcaneofibular ligament, superior peroneal retinacula, tibialis posterior tendon, tibial nerve, Achilles tendon, plantaris tendon, plantar fascia, and sural nerve were considered. To assess intra- and interreader agreements, 30 (100{\%}) examinations were repeated. A nonparametric statistic was used. Results: Data were not normally distributed (P >.001). Intrareader agreement was k = 0.67 (95{\%} confidence interval, 0.57–0.78) and interreader agreement was k = 0.73 (95{\%} confidence interval, 0.68–0.77). The mean values and standard deviation for all the structures were 0.36 ± 1.85 mm. The overall coefficient of variation was 18.5{\%}. The intraclass correlation coefficient was 0.93 (95{\%} confidence interval, 0.92–0.94). Conclusions: In ankle and foot sonography, the healthy contralateral side can be used as a reference during a real-time musculoskeletal ultrasound evaluation of small structures.",
keywords = "ankle, comparison, foot, reliability, small structures, ultrasound",
author = "Federica Rossi and Federico Zaottini and Riccardo Picasso and Carlo Martinoli and Tagliafico, {Alberto Stefano}",
year = "2019",
month = "1",
day = "1",
doi = "10.1002/jum.14911",
language = "English",
volume = "38",
pages = "2143--2153",
journal = "Journal of Ultrasound in Medicine",
issn = "0278-4297",
publisher = "American Institute of Ultrasound in Medicine",
number = "8",

}

TY - JOUR

T1 - Ankle and Foot Ultrasound

T2 - Reliability of Side-to-Side Comparison of Small Anatomic Structures

AU - Rossi, Federica

AU - Zaottini, Federico

AU - Picasso, Riccardo

AU - Martinoli, Carlo

AU - Tagliafico, Alberto Stefano

PY - 2019/1/1

Y1 - 2019/1/1

N2 - Objectives: In sonography of clinically relevant small structures of the ankle and foot, the healthy contralateral side can be used as a reference to identify subtle abnormalities. Intrasubject side-to-side variability must be minimal. The aim of this study was to assess the reliability of side-to-side sonographic evaluation of small structures of the ankle and foot. Methods: Thirty healthy volunteers were prospectively studied. Small structures of the ankle and foot were evaluated bilaterally by 2 musculoskeletal radiologists in separate sessions. The deep peroneal nerve, superior extensor retinacula, calcaneofibular ligament, superior peroneal retinacula, tibialis posterior tendon, tibial nerve, Achilles tendon, plantaris tendon, plantar fascia, and sural nerve were considered. To assess intra- and interreader agreements, 30 (100%) examinations were repeated. A nonparametric statistic was used. Results: Data were not normally distributed (P >.001). Intrareader agreement was k = 0.67 (95% confidence interval, 0.57–0.78) and interreader agreement was k = 0.73 (95% confidence interval, 0.68–0.77). The mean values and standard deviation for all the structures were 0.36 ± 1.85 mm. The overall coefficient of variation was 18.5%. The intraclass correlation coefficient was 0.93 (95% confidence interval, 0.92–0.94). Conclusions: In ankle and foot sonography, the healthy contralateral side can be used as a reference during a real-time musculoskeletal ultrasound evaluation of small structures.

AB - Objectives: In sonography of clinically relevant small structures of the ankle and foot, the healthy contralateral side can be used as a reference to identify subtle abnormalities. Intrasubject side-to-side variability must be minimal. The aim of this study was to assess the reliability of side-to-side sonographic evaluation of small structures of the ankle and foot. Methods: Thirty healthy volunteers were prospectively studied. Small structures of the ankle and foot were evaluated bilaterally by 2 musculoskeletal radiologists in separate sessions. The deep peroneal nerve, superior extensor retinacula, calcaneofibular ligament, superior peroneal retinacula, tibialis posterior tendon, tibial nerve, Achilles tendon, plantaris tendon, plantar fascia, and sural nerve were considered. To assess intra- and interreader agreements, 30 (100%) examinations were repeated. A nonparametric statistic was used. Results: Data were not normally distributed (P >.001). Intrareader agreement was k = 0.67 (95% confidence interval, 0.57–0.78) and interreader agreement was k = 0.73 (95% confidence interval, 0.68–0.77). The mean values and standard deviation for all the structures were 0.36 ± 1.85 mm. The overall coefficient of variation was 18.5%. The intraclass correlation coefficient was 0.93 (95% confidence interval, 0.92–0.94). Conclusions: In ankle and foot sonography, the healthy contralateral side can be used as a reference during a real-time musculoskeletal ultrasound evaluation of small structures.

KW - ankle

KW - comparison

KW - foot

KW - reliability

KW - small structures

KW - ultrasound

UR - http://www.scopus.com/inward/record.url?scp=85071088615&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85071088615&partnerID=8YFLogxK

U2 - 10.1002/jum.14911

DO - 10.1002/jum.14911

M3 - Article

AN - SCOPUS:85071088615

VL - 38

SP - 2143

EP - 2153

JO - Journal of Ultrasound in Medicine

JF - Journal of Ultrasound in Medicine

SN - 0278-4297

IS - 8

ER -