MRI images showing avascular necrosis AVN of the Knee

Link back to: AVN of the knee

(A) Sagittal T1 weighted MRI showing a low signal subchondral lesion (arrows) of linear morphology. This lesion is associated with ill defined bone marrow oedema. (B) On T2 weighted sequences the subchondral lesion also shows a low signal (arrowheads) and the ill defined bone marrow oedema shows a high signal. Joint effusion (arrows) is also well demonstrated, with a homogeneous high signal.(A) Sagittal T1 weighted MRI showing a low signal subchondral lesion (arrows) of linear morphology. This lesion is associated with ill defined bone marrow oedema. (B) On T2 weighted sequences the subchondral lesion also shows a low signal (arrowheads) and the ill defined bone marrow oedema shows a high signal. Joint effusion (arrows) is also well demonstrated, with a homogeneous high signal.

 

Image notes

Sagittal T1 and T2 weighted refers to MRI image signal intensity, allowing the radiographer and surgeon to interpret the image in a useful way.

Link back to: AVN of the knee

Last Updated on Friday, 24 October 2014 10:43