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Skeletal Radiology

, Volume 49, Issue 1, pp 137–145 | Cite as

T2 distribution profiles are a good way to show cartilage regional variabilities and cartilage insufficiency

  • Ž. SnojEmail author
  • J. Vidmar
  • M. Gergar
  • D. Plut
  • V. Salapura
Technical Report
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Abstract

Objective

To use T2 relaxation time distribution profiles to assess inter-group regional differences along articular surfaces and to evaluate the feasibility of this analysis for comparison of cartilage insufficiency.

Materials and methods

Twelve pairs matched according to age and gender (12 healthy volunteers and 12 patients after anterior cruciate ligament reconstruction (ACLR)) underwent 3-T MRI. T2 maps were calculated from six time echo images of the mid-sagittal slice in the lateral and medial compartment. The femoral and tibial cartilage was analyzed by measuring T2 distribution profiles along the articular surfaces.

Results

T2 distribution profiles were generated along the length of the articular surface in the femorotibial compartments. Differences in the T2 distribution profiles between the tibial and femoral cartilage as well as between the cartilage of the femoral condyles were identified in healthy individuals. T2 distribution profiles clearly demonstrated cartilage insufficiency in the weight-bearing areas for subjects in the ACLR group.

Conclusions

T2 distribution profiles can identify regional differences in femoral and tibial cartilage. The T2 distribution profile pattern is preserved with cartilage insufficiency, however, with important differences in T2 values for the ACLR group in weight-bearing areas.

Keywords

T2 mapping Knee Anterior cruciate ligament reconstruction T2 distribution profile Cartilage 

Notes

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Copyright information

© ISS 2019

Authors and Affiliations

  • Ž. Snoj
    • 1
    Email author
  • J. Vidmar
    • 1
    • 2
  • M. Gergar
    • 1
  • D. Plut
    • 1
  • V. Salapura
    • 1
  1. 1.Institute of RadiologyUniversity Medical Centre LjubljanaLjubljanaSlovenia
  2. 2.Institute of Physiology, Faculty of Medicine LjubljanaLjubljanaSlovenia

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