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3.0-T MRI of Meniscal Tears

Thomas Magee1 and David Williams1

1 Both authors: Department of Radiology, Neuroskeletal Imaging, 255 N Sykes Creek Pkwy., Merritt Island, FL 32953.


Figure 1
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  		Fig. 1 —28-year-old man with knee pain who had surgically proven meniscal tear. Proton density sagittal MR image (TR/TE, 1,800/12) shows findings consistent with meniscal tear (arrow).

 

Figure 2
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  		Fig. 2 —45-year-old man with knee pain who had surgically proven meniscal radial tear. Proton density sagittal MR image (TR/TE, 1,800/12) shows findings consistent with radial tear (arrow) in body of lateral meniscus.

 

Figure 3
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  		Fig. 3 —15-year-old boy with knee pain who had meniscal tear found at arthroscopy. Proton density sagittal MR image (TR/TE, 1,800/12) shows area of intrasubstance signal in posterior horn of meniscus but no meniscal tear (arrow).

 

Figure 4
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  		Fig. 4 —42-year-old woman with knee pain who had meniscal tears of medial and lateral menisci found at arthroscopy. T1-weighted coronal MR image (TR/TE, 750/10) shows horizontal meniscal tear (down arrow) in posterior horn of medial meniscus. Horizontal tear (up arrow) also is present in lateral meniscus.

 

Figure 5
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  		Fig. 5 —42-year-old man with knee pain. Meniscal radial tear was found at arthroscopy. T2-weighted coronal MR image (TR/TE, 3,950/51) shows MRI findings consistent with meniscal radial tear (arrow). This tear was not seen by either reviewer at blinded retrospective review but was seen in retrospect after arthroscopic results were known.

 

Figure 6
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  		Fig. 6 —15-year-old boy with knee pain who had surgically proven meniscal tear. Proton density sagittal MR image (TR/TE, 1,800/12) shows findings consistent with meniscal tear (arrow).

 

Figure 7
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  		Fig. 7A —39-year-old woman with knee pain who had surgically proven meniscal tear. T2-weighted coronal MR image (TR/TE, 3,950/51) shows linear area of abnormal increased signal touching superior articular surface of meniscus (arrow). This finding was not interpreted as meniscal tear by either reviewer at retrospective blinded review.

 

Figure 8
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  		Fig. 7B —39-year-old woman with knee pain who had surgically proven meniscal tear. T1-weighted coronal MR image (684/9.5) shows abnormal increased signal touching superior articular surface of meniscus (arrow). This finding was seen only in retrospect after results of arthroscopy were known. This meniscal tear was seen only on coronal images and was not seen in sagittal or axial planes.

 

Figure 9
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  		Fig. 8 —23-year-old man with knee pain. Proton density sagittal MR image (TR/TE, 1,800/12) shows MRI findings consistent with meniscal tear (arrow). Meniscal tear was not seen at arthroscopy.

 

Figure 10
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  		Fig. 9 —34-year-old man with knee pain. Proton density sagittal MR image (TR/TE, 1,800/12) shows MRI findings consistent with meniscal tear (arrow). Meniscal tear was not seen at arthroscopy.

 

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