Original Article

HSS Journal

, Volume 5, Issue 1, pp 61-66

First online:

T2 Mapping of Articular Cartilage of Glenohumeral Joint with Routine MRI Correlation—Initial Experience

  • Zeev V. MaizlinAffiliated withDepartment of Radiology, McMaster University Medical Centre Email author 
  • , Jason J. ClementAffiliated withDepartment of Radiology, St. Paul’s Hospital
  • , Wayne B. PatolaAffiliated withDepartment of Radiology, St. Paul’s Hospital
  • , David M. FentonAffiliated withDepartment of Radiology, St. Paul’s Hospital
  • , Jean H. GilliesAffiliated withDivision of Rheumatology, University of British Columbia
  • , Patrick M. VosAffiliated withDepartment of Radiology, St. Paul’s Hospital
  • , Jon A. JacobsonAffiliated withDepartment of Radiology, University of Michigan Hospitals

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The evaluation of articular cartilage currently relies primarily on the identification of morphological alterations of the articular cartilage. Unlike anatomic imaging, T2 mapping is sensitive to changes in the chemical composition and structure of the cartilage. Clinical evaluation of T2 mapping of the glenohumeral joint has not been previously reported. The objectives of this study were to evaluate the feasibility of magnetic resonance T2 mapping of the glenohumeral joint in routine clinical imaging, to assess the normal T2 mapping appearance of the glenohumeral joint, and to compare the findings on T2 maps to conventional MR pulse sequences. Magnetic resonance imaging (MRI) examinations of 27 shoulders were performed in a routine clinical setting. All studies included acquisition of T2 mapping using a dedicated software. The T2 maps were analyzed along with the routine MR exam and correlation of cartilage appearance on T2 map and on conventional MR sequences. T2 imaging maps were obtained successfully in all patients. T2 maps and routine MRI correlated in cases of normal cartilage and prolonged T2 values and cartilage defects. In four cases, increased T2 relaxation times in the cartilage and cartilage defects were more apparent on T2 maps. Acquisition of T2 maps at the time of routine MRI scanning is feasible and not time-consuming.