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"MAGNETIC RESONANCE IMAGINGGENERAL RULES"

“ •   STIR sequences are the best for evaluating for bone oedema/bruising and occult fractures. •   T2 or proton density fat-saturated seque...

•  STIR sequences are the best for evaluating for bone oedema/bruising and occult fractures.
•  T2 or proton density fat-saturated sequences to investigate cartilage thickness.
•  T1 post-contrast to assess the synovium and synovial inflammation.
 High signal on T2:
–  Osteoporotic vertebral collapse
–  Radiotherapy change
–  Haemangiomas
–  Type 1 and 2 Modic changes
–  Lytic metastases

Isointense signal on T2:

– Lymphoma

Gaucher disease

Low signal on T2:

–  Sclerotic metastases
–  Myeloma after treatment

Low signal on T1:
–  Lytic metastases
–  Sclerotic metastases