Intra- and Interobserver Reliability of Size Measurement of Morton Neuromas on Sonography

Young Hwan Park, Won Seok Choi, Gi Won Choi, Hak Jun Kim

    Research output: Contribution to journalArticlepeer-review

    5 Citations (Scopus)


    OBJECTIVES: Sonography is often used for analysis of Morton neuromas, but the measurement reliability is unknown. The aim of this study was to determine the intra- and interobserver reliability and precision of sonographic measurement of Morton neuromas. METHODS: Three observers with different levels of sonography experience (observer A, expert; observer B, intermediate; observer C, beginner) performed repeated measurements of the size of Morton's neuroma in 20 patients. Intraclass correlation coefficient and limit of agreement were used to evaluate reliability and measurement precision. RESULTS: The intraclass correlation coefficient for intraobserver reliability was 0.80, 0.71, and 0.43 (limit of agreement, 20%, 18%, and 47%) in observers A, B, and C, respectively. The intraclass correlation coefficient for interobserver reliability was 0.72, 0.38, and 0.38 (limit of agreement, 25%, 36%, and 35%) between observers A/B, A/C, and B/C, respectively. CONCLUSIONS: The intra- and interobserver reliability values for sonographic measurement of Morton neuroma size were dependent on observer experience. Experienced observers had higher reliability, while observers who were less familiar with sonography showed moderate to low reliability.

    Original languageEnglish
    Pages (from-to)2341-2345
    Number of pages5
    JournalJournal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine
    Issue number9
    Publication statusPublished - 2019 Sept 1


    • interobserver
    • intraobserver
    • Morton neuroma
    • reliability
    • ultrasound

    ASJC Scopus subject areas

    • Radiological and Ultrasound Technology
    • Radiology Nuclear Medicine and imaging


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