Acromial arch shape: assessment with MR imaging.

Journal Article (Journal Article)

PURPOSE: To test the hypothesis that acromial shape is comparable on supraspinatus outlet view radiographs and parasagittal magnetic resonance (MR) images. MATERIALS AND METHODS: Supraspinatus outlet view radiographs of a dried scapula were obtained in the neutral position and with various degrees of caudal, cranial, anterior, and posterior angulation. Sagittal MR images of 41 asymptomatic and 39 symptomatic shoulders were reviewed and compared with outlet view radiographs from the 39 symptomatic cases. Acromial shape was assessed with published classification schemes. RESULTS: Minor variations in angulation produced changes in apparent acromial shape and thickness on the radiographs. MR imaging from a lateral to a more medial section changed the shape or thickness grade in 39 of 41 asymptomatic shoulders. There was poor correlation between findings at radiographic and MR assessment of acromial shape in the symptomatic group. CONCLUSION: Apparent acromial shape is sensitive to minor changes in radiographic technique and MR section viewed.

Full Text

Duke Authors

Cited Authors

  • Peh, WC; Farmer, TH; Totty, WG

Published Date

  • May 1995

Published In

Volume / Issue

  • 195 / 2

Start / End Page

  • 501 - 505

PubMed ID

  • 7724774

International Standard Serial Number (ISSN)

  • 0033-8419

Digital Object Identifier (DOI)

  • 10.1148/radiology.195.2.7724774


  • eng

Conference Location

  • United States