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Intensity of Signal Contacting Meniscal Surface in Recurrent Tears on MR Arthrography Compared with That of Contrast Material

Arthur A. De Smet1, David M. Horak2, Kirkland W. Davis1 and James J. Choi1

1 Department of Radiology, University of Wisconsin-Madison Center for Health Sciences, 600 Highland Ave., Madison, WI 53792.
2 Radiology Associates of the Fox Valley, Neenah, WI 54956.


Figure 1
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Fig. 1A 57-year-old man with recurrent tear of posterior horn of medial meniscus after resection of tear. Fat-saturated T1-weighted sagittal MR arthrograms show two adjacent images with intrameniscal signal contacting meniscal surface and having signal intensity less than that of adjacent intraarticular contrast material (arrows).

 

Figure 2
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Fig. 1B 57-year-old man with recurrent tear of posterior horn of medial meniscus after resection of tear. Fat-saturated T1-weighted sagittal MR arthrograms show two adjacent images with intrameniscal signal contacting meniscal surface and having signal intensity less than that of adjacent intraarticular contrast material (arrows).

 

Figure 3
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Fig. 2 67-year-old man with recurrent tear of posterior horn of medial meniscus after resection of tear. Fat-saturated T1-weighted sagittal MR arthrogram shows one image with intrameniscal signal contacting surface (arrow) and having signal intensity equal to that of adjacent intraarticular contrast material.

 

Figure 4
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Fig. 3A 37-year-old woman with intact posterior horn of lateral meniscus after repair of peripheral tear. Fat-saturated T1-weighted sagittal MR arthrograms show two adjacent images with intrameniscal signal contacting meniscal surface and having signal intensity less than that of adjacent intraarticular contrast material (arrows).

 

Figure 5
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Fig. 3B 37-year-old woman with intact posterior horn of lateral meniscus after repair of peripheral tear. Fat-saturated T1-weighted sagittal MR arthrograms show two adjacent images with intrameniscal signal contacting meniscal surface and having signal intensity less than that of adjacent intraarticular contrast material (arrows).

 

Figure 6
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Fig. 4 17-year-old boy with intact lateral meniscus after resection of tear. Fat-saturated T1-weighted coronal MR arthrogram shows one image with intrameniscal signal contacting surface (arrow) with signal intensity equal to that of adjacent intraarticular contrast material.

 

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