MR imaging of the rotator cuff tendon: Interobserver agreement and analysis of interpretive errors

Susan M. Balich, Robert C. Sheley, Thomas R. Brown, Donald D. Sauser, Stephen F. Quinn

Research output: Contribution to journalArticle

135 Scopus citations

Abstract

PURPOSE: To evaluate accuracy in interpretation of shoulder magnetic resonance (MR) images and interobserver agreement and to characterize the types of errors. MATERIALS AND METHODS: Five radiologists with varying experience independently and retrospectively twice interpreted the MR images of 222 symptomatic patients who under went both MR imaging and shoulder arthroscopy. The first interpretation was a blind review; the second was with knowledge of the arthroscopic findings. RESULTS: For full-thickness tears, the sensitivity, specificity, and accuracy were 84%-96%, 94%-98%, and 92%- 97%, respectively, and for partial tears, 35%-44%, 85%-97%, and 77%-87%, respectively. There was no statistically significant difference between readers in the detection of partial or full-thickness tears. There was a statistically significant difference between readers in the no-tear category. Cohen κ values generally indicated improved interobserver agreement proportional to the readers' experience (full-thickness tears, 0.731 0.881; partial tears, 0.168-0.443). CONCLUSION: Diagnosis of a full thickness tear can be learned to a high degree of accuracy. Despite the radiologist's level of experience and knowledge of the arthroscopic findings, the sensitivity for diagnosis of partial tears is poor.

Original languageEnglish (US)
Pages (from-to)191-194
Number of pages4
JournalRADIOLOGY
Volume204
Issue number1
DOIs
StatePublished - Jul 1997

Keywords

  • Diagnostic radiology, observer performance
  • Shoulder, MR
  • Tendons, MR
  • Tendons, injuries

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

Fingerprint Dive into the research topics of 'MR imaging of the rotator cuff tendon: Interobserver agreement and analysis of interpretive errors'. Together they form a unique fingerprint.

  • Cite this

    Balich, S. M., Sheley, R. C., Brown, T. R., Sauser, D. D., & Quinn, S. F. (1997). MR imaging of the rotator cuff tendon: Interobserver agreement and analysis of interpretive errors. RADIOLOGY, 204(1), 191-194. https://doi.org/10.1148/radiology.204.1.9205245