Intraobserver repeatability and interobserver reproducibility in musculoskeletal ultrasound imaging measurements

P. Bálint, R. D. Sturrock

Research output: Contribution to journalArticle

51 Citations (Scopus)

Abstract

Objective. To assess the repeatability and reproducibility of ultrasonographic measurements at the anterior surface of the femoral neck and iliofemoral ligament and on a human tissue-mimicking phantom. Methods. Two independent investigators studied 22 consecutive hips. One investigator had previous experience in musculoskeletal ultrasonography (US). The other investigator had undergone a short course in hip sonography (only 3 hours). Both investigators were blinded to their own and each other's results. On the phantom both observers had taken 10 vertical measurements at 6 cm deep where two objects were placed at 2 cm from each other. Calculation of measurement errors, percent errors and the Bland-Altman graphic technique were used for analysis of data. Results. After 132 examinations the first investigator's within-subject standard deviation was 0.4 mm. The intra-observer error was 4.75%. The second investigator's within-subject standard deviation was 0.6 mm and his intraobserver error was 7.00%. The interobserver error was 10.91%. After 20 phantom examinations the first investigator's intraobserver error was 1.11% and the second investigator's intraobserver error was 1.47%. Conclusion. An inexperienced musculoskeletal sonographer can achieve an acceptable performance if given appropriate training.

Original languageEnglish
Pages (from-to)89-92
Number of pages4
JournalClinical and Experimental Rheumatology
Volume19
Issue number1
Publication statusPublished - 2001

Fingerprint

Ultrasonography
Research Personnel
Hip
Femur Neck
Ligaments

Keywords

  • Diagnostic imaging
  • Hip
  • Hip joint
  • Imaging
  • Ligaments
  • Musculoskeletal system
  • Observer variation
  • Phantoms
  • Reproducibility of results
  • Ultrasonography

ASJC Scopus subject areas

  • Rheumatology
  • Immunology

Cite this

Intraobserver repeatability and interobserver reproducibility in musculoskeletal ultrasound imaging measurements. / Bálint, P.; Sturrock, R. D.

In: Clinical and Experimental Rheumatology, Vol. 19, No. 1, 2001, p. 89-92.

Research output: Contribution to journalArticle

@article{c364b387f76842e0a6f5dba1ec89e6ea,
title = "Intraobserver repeatability and interobserver reproducibility in musculoskeletal ultrasound imaging measurements",
abstract = "Objective. To assess the repeatability and reproducibility of ultrasonographic measurements at the anterior surface of the femoral neck and iliofemoral ligament and on a human tissue-mimicking phantom. Methods. Two independent investigators studied 22 consecutive hips. One investigator had previous experience in musculoskeletal ultrasonography (US). The other investigator had undergone a short course in hip sonography (only 3 hours). Both investigators were blinded to their own and each other's results. On the phantom both observers had taken 10 vertical measurements at 6 cm deep where two objects were placed at 2 cm from each other. Calculation of measurement errors, percent errors and the Bland-Altman graphic technique were used for analysis of data. Results. After 132 examinations the first investigator's within-subject standard deviation was 0.4 mm. The intra-observer error was 4.75{\%}. The second investigator's within-subject standard deviation was 0.6 mm and his intraobserver error was 7.00{\%}. The interobserver error was 10.91{\%}. After 20 phantom examinations the first investigator's intraobserver error was 1.11{\%} and the second investigator's intraobserver error was 1.47{\%}. Conclusion. An inexperienced musculoskeletal sonographer can achieve an acceptable performance if given appropriate training.",
keywords = "Diagnostic imaging, Hip, Hip joint, Imaging, Ligaments, Musculoskeletal system, Observer variation, Phantoms, Reproducibility of results, Ultrasonography",
author = "P. B{\'a}lint and Sturrock, {R. D.}",
year = "2001",
language = "English",
volume = "19",
pages = "89--92",
journal = "Clinical and Experimental Rheumatology",
issn = "0392-856X",
publisher = "Clinical and Experimental Rheumatology S.A.S.",
number = "1",

}

TY - JOUR

T1 - Intraobserver repeatability and interobserver reproducibility in musculoskeletal ultrasound imaging measurements

AU - Bálint, P.

AU - Sturrock, R. D.

PY - 2001

Y1 - 2001

N2 - Objective. To assess the repeatability and reproducibility of ultrasonographic measurements at the anterior surface of the femoral neck and iliofemoral ligament and on a human tissue-mimicking phantom. Methods. Two independent investigators studied 22 consecutive hips. One investigator had previous experience in musculoskeletal ultrasonography (US). The other investigator had undergone a short course in hip sonography (only 3 hours). Both investigators were blinded to their own and each other's results. On the phantom both observers had taken 10 vertical measurements at 6 cm deep where two objects were placed at 2 cm from each other. Calculation of measurement errors, percent errors and the Bland-Altman graphic technique were used for analysis of data. Results. After 132 examinations the first investigator's within-subject standard deviation was 0.4 mm. The intra-observer error was 4.75%. The second investigator's within-subject standard deviation was 0.6 mm and his intraobserver error was 7.00%. The interobserver error was 10.91%. After 20 phantom examinations the first investigator's intraobserver error was 1.11% and the second investigator's intraobserver error was 1.47%. Conclusion. An inexperienced musculoskeletal sonographer can achieve an acceptable performance if given appropriate training.

AB - Objective. To assess the repeatability and reproducibility of ultrasonographic measurements at the anterior surface of the femoral neck and iliofemoral ligament and on a human tissue-mimicking phantom. Methods. Two independent investigators studied 22 consecutive hips. One investigator had previous experience in musculoskeletal ultrasonography (US). The other investigator had undergone a short course in hip sonography (only 3 hours). Both investigators were blinded to their own and each other's results. On the phantom both observers had taken 10 vertical measurements at 6 cm deep where two objects were placed at 2 cm from each other. Calculation of measurement errors, percent errors and the Bland-Altman graphic technique were used for analysis of data. Results. After 132 examinations the first investigator's within-subject standard deviation was 0.4 mm. The intra-observer error was 4.75%. The second investigator's within-subject standard deviation was 0.6 mm and his intraobserver error was 7.00%. The interobserver error was 10.91%. After 20 phantom examinations the first investigator's intraobserver error was 1.11% and the second investigator's intraobserver error was 1.47%. Conclusion. An inexperienced musculoskeletal sonographer can achieve an acceptable performance if given appropriate training.

KW - Diagnostic imaging

KW - Hip

KW - Hip joint

KW - Imaging

KW - Ligaments

KW - Musculoskeletal system

KW - Observer variation

KW - Phantoms

KW - Reproducibility of results

KW - Ultrasonography

UR - http://www.scopus.com/inward/record.url?scp=0035093594&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0035093594&partnerID=8YFLogxK

M3 - Article

VL - 19

SP - 89

EP - 92

JO - Clinical and Experimental Rheumatology

JF - Clinical and Experimental Rheumatology

SN - 0392-856X

IS - 1

ER -