MR imaging of knee hyaline cartilage: evaluation of two- and three-dimensional sequences.

O. Tervonen, M. J. Dietz, S. W. Carmichael, Richard Lorne Ehman

Research output: Contribution to journalArticle

40 Scopus citations

Abstract

Magnetic resonance (MR) imaging of cadaveric knees was performed to determine optimal sequences for visualization of hyaline cartilage. Full-thickness cartilage lesions ranging in diameter from 1 to 5 mm and a partial-thickness cartilage lesion 15 mm in diameter were created in the femoral articular surfaces of three cadaveric knees. The knees were then imaged with a 1.5-T imager with various two-dimensional and high-resolution three-dimensional (3D) techniques. After imaging, the knee specimens were sectioned for evaluation. Measurements of cartilage thickness in fast spin-echo images correlated best with those in the gross specimen. Diffuse areas of cartilage thinning were also most accurately identified with fast spin-echo images. Small, focal cartilage defects were best delineated in 3D SPGR (spoiled GRASS [gradient-recalled acquisition in the steady state]) images.

Original languageEnglish (US)
Pages (from-to)663-668
Number of pages6
JournalJournal of magnetic resonance imaging : JMRI
Volume3
Issue number4
StatePublished - Jul 1993

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ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology

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