MR Imaging of the Knee at 0.2 and 1.5 T
Correlation with Surgery
Anne Cotten1,
Emmanuelle Delfaut1,
Xavier Demondion1,
Franck Lapègue1,
Mokran Boukhelifa1,
Nathalie Boutry1,
Patrick Chastanet1 and
François Gougeon2
1
Service de Radiologie Ostéo-Articulaire,
Hôpital R. Salengro, Blvd. du Pr. J. Leclercq,
59037 Lille, France.
2
Service de Traumatologie, Hôpital R. Salengro,
Blvd. du Pr. J. Leclercq, 59037 Lille, France.

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Fig. 1A. 27-year-old man with medial meniscal tear. Sagittal
T2*-weighted MR images obtained at 1.5 T (A) and 0.2 T
(B) show medial meniscal tear equally well (arrow).
Arthroscopy (not shown) confirmed meniscal tear.
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Fig. 1B. 27-year-old man with medial meniscal tear. Sagittal
T2*-weighted MR images obtained at 1.5 T (A) and 0.2 T
(B) show medial meniscal tear equally well (arrow).
Arthroscopy (not shown) confirmed meniscal tear.
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Fig. 2A. 31-year-old man with medial meniscal tear. Sagittal
T2*-weighted MR image obtained at 1.5 T (A) reveals medial
meniscal tear (arrow), whereas sagittal T2*-weighted MR
image obtained at 0.2 T (B) does not. Arthroscopy (not shown) confirmed
meniscal tear.
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Fig. 2B. 31-year-old man with medial meniscal tear. Sagittal
T2*-weighted MR image obtained at 1.5 T (A) reveals medial
meniscal tear (arrow), whereas sagittal T2*-weighted MR
image obtained at 0.2 T (B) does not. Arthroscopy (not shown) confirmed
meniscal tear.
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Fig. 3A. 29-year-old man with intact anterior cruciate ligament. Sagittal
T1-weighted MR image obtained at 1.5 T reveals intact anterior cruciate
ligament.
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Fig. 3B. 29-year-old man with intact anterior cruciate ligament. Sagittal
T1-weighted MR image obtained at 0.2 T was interpreted as tear of anterior
cruciate ligament. Clinically and arthroscopically (not shown) intact anterior
cruciate ligament was confirmed.
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