Welcome to Classifications and Online Calculators in Radiology

This site was build along with the Atlas of Radiology Images to support your knowledge in radiology.

You will find here:

that are used in radiology and related fields with free access.

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The concept of this website is based on a previous site that was founded in 2008 and is still up and running. The website is composed as a book, where all sources are properly referenced, according to a good practice in scientific publications.

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    Grading of meniscal injury

    Lesions of the menisci on MRI are divided into four grades. Normal meniscus has uniformly low signal intensity on T2-weighted images (T2W). Grade I and II lesions can be a normal appearance of ageing in older patients.

    Grade Description
    Grade I small focus of increased signal intensity on T2W, that does not extend to the articular surface
    Grade II linear area of increased signal intensity without extension to the articular surface
    Grade III area of increased signal intensity that extends to the articular surface
    Grade IV fragmentation of the meniscus

    References

    1. Stoller DW, Martin C, Crues JV 3rd, Kaplan L, Mink JH. Meniscal tears: pathologic correlation with MR imaging. Radiology. 1987 Jun;163(3):731–5.
    2. Mesgarzadeh M, Moyer R, Leder DS, Revesz G, Russoniello A, Bonakdarpour A, et al. MR imaging of the knee: expanded classification and pitfalls to interpretation of meniscal tears. Radiographics. 1993 May;13(3):489–500.
    3.     Behairy NH, Dorgham MA, Khaled SA. Accuracy of routine magnetic resonance imaging in meniscal and ligamentous injuries of the knee: comparison with arthroscopy. Int Orthop. 2009 Aug;33(4):961–7.
    4. Nikolaou VS, Chronopoulos E, Savvidou C, Plessas S, Giannoudis P, Efstathopoulos N, et al. MRI efficacy in diagnosing internal lesions of the knee: a retrospective analysis. J Trauma Manag Outcomes. 2008 Jun 2;2:4.
    5. Crues JV 3rd, Mink J, Levy TL, Lotysch M, Stoller DW. Meniscal tears of the knee: accuracy of MR imaging. Radiology. 1987 Aug;164(2):445–8.
    6. Rubin DA. MR imaging of the knee menisci. Radiol Clin North Am. 1997 Jan;35(1):21–44.

    Updated 13/11/2013 23:01 by Lambert
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