MR Imaging with T2*- mapping for improved acetabular cartilage assessment in FAI-a case report with arthroscopic correlation

P. Morgan, S. Spiridonov, R. Goebel, M. Nissi, R. Frei, J. Ellermann

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Articular cartilage assessment in femoroacetabular impingement (FAI) is challenging. Recent studies on T2* relaxation time mapping suggest the technique may be useful in diagnosing cartilage damage. The purpose of this case report is to describe how quantitative T2*-mapping may improve cartilage assessment of the acetabulum in patients with FAI. MR arthrography was performed at 3 Tesla (T) using intra-articular Gadolinium and a T2* mapping protocol. Data from the acetabular cartilage was separated from femoral head cartilage data and then superimposed on a flattened, map projection representation of the patient's acetabulum. The areas of unhealthy cartilage observed at the time of arthroscopy-including debonding and delamination-were seen preoperatively at the same anatomic locations as areas of decreased T2* values. T2* mapping values provided a non-invasive assessment of the acetabular articular cartilage. A flattened acetabular map projection allowed for anatomic visualization of areas of unhealthy cartilage. Level of evidence: Level IV.

Original languageEnglish (US)
Pages (from-to)971-973
Number of pages3
JournalOrthopaedics and Traumatology: Surgery and Research
Volume100
Issue number8
DOIs
StatePublished - Dec 1 2014

Keywords

  • Arthroscopy
  • Cartilage
  • FAI
  • Hip
  • MRI
  • T2*-mapping

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