Editing Necrotizing fasciitis (section)

==== Magnetic resonance imaging (MRI) ====
[[File:Necrotizing fasciitis MRI.png|thumb|Axial T2 weighted MRI (a) and contrast-enhanced MRI (b) of left wrist showing necrotizing fasciitis. There is diffuse hyperintensity with irregular enhancement of the deep fascia (asterisks). The arrows indicate a lobulating abscess, and the triangle a skin bulla.]]
[[Magnetic resonance imaging]] (MRI) is considered superior to [[CT scan|computed tomography]] (CT) in the visualization of soft tissues and is able to detect about 93% of NF cases.<ref name=":0" /> It is especially useful in finding fluid in the deep fascia, which can distinguish between NF and cellulitis.<ref name=":0" />  When fluid collects in the deep fascia, or thickening or enhancement with [[Contrast medium|contrast]], necrotizing fasciitis should be strongly suspected. However, MRI is much slower than CT and not as widely available.<ref name=":0" />  There may also be limitations on its use in patients with kidney problems.<ref name=":0" />