A Current Review of the Meniscus Imaging: Proposition of a Useful Tool for Its Radiologic Analysis

Figure 1

Normal meniscus on (a) Coronal T2 FSE Fat Sat MRI; (b) Sagittal T2 FSE Fat Sat MRI (the posterior horn is typically larger than the anterior horn medially); (c) Sagittal T2 FSE Fat Sat MRI (the horns of the lateral meniscus are equal in size and look like opposing triangles); (d) Axial T2 FSE Fat Sat MRI (the shapes of medial and lateral menisci differ, in attachment site (arrow). The medial meniscus is larger and has a more open C-shape configuration, with anterior and posterior tibial attachment sites separated by a greater distance compared to the lateral meniscus which has a more O-shape configuration); (e) three-dimensional diagram of the medial and lateral menisci; (f) coronal proton density weighted sequences; (g) sagittal proton density weighted sequences of the medial meniscus; (h) sagittal proton density weighted sequences of the lateral meniscus; (i) arthroscopic view of meniscus.

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