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. Author manuscript; available in PMC: 2017 Feb 1.
Published in final edited form as: Osteoarthritis Cartilage. 2015 Aug 28;24(2):274–289. doi: 10.1016/j.joca.2015.08.011

Figure 8.

Figure 8

Relevance of sequence selection for BML assessment. A. Sagittal intermediate-weighted fat-suppressed MRI shows diffuse, ill-defined BML in the anterior lateral femur (long arrows), representing a grade 3 lesion in MOAKS and WORMS. There is also a BML at the lateral patella (short arrow), also coded grade 3 in MOAKS and WORMS. B. Corresponding dual-echo at steady-state (DESS) MRI does not allow differentiation of BMLs from normal marrow due to magnetic susceptibility, although DESS is a sequence with T2-weighted image characteristics. This low sensitivity for BML detection, especially for edema-like lesions, is common for all gradient echo sequences, including DESS.