Lumbar Disc MRI: Meet Normal your best friend
LUMBAR DISC MRI NORMAL
In our workshops, before we look at abnormal, we always look at the normal appearance of a structure and make sure we understand it well. Without knowing normal, you can’t hope to understand what is abnormal.
- A normal disc has water so,
- It's High signal on T2 Low signal on T1 &,
- It doesn't enhance.
- As a disc ages and degenerates it looses water and..
- It's T2 signal progressively decreases.
- It's height progressively decreases.
As a disc degenerates, it looses height and T2 signal. This appearance is important to know when we are trying to differentiate degenerative Modic Type 1 changes and Discitis as we will see in upcoming posts. 
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