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Fig. 3A. —78-year-old man with lateral tibial plateau removed at arthroplasty. B₀ = main magnetic field. Sagittal spin-echo image (TR/TE, 1,000/14; field of view, 45 mm; slice thickness, 1 mm; matrix size, 512 x 512) of submeniscal region scanned with surface perpendicular to B₀ shows relatively high-signal-intensity transitional layer (black arrow) and lower-signal-intensity deep layer (white arrow).