Editing Necrotizing fasciitis (section)

==== Computed tomography (CT) ====
[[File:Pnecrotisingfasc.png|thumb|Necrotizing fasciitis producing gas in the soft tissues as seen on CT scan]]
If available, [[CT scan|computed tomography]] (CT) is the most convenient tool in diagnosing NF due to its speed and resolution (detects about 80% of NF cases).<ref>{{cite journal |last1=Puvanendran |first1=R |last2=Huey |first2=JC |last3=Pasupathy |first3=S |date=October 2009 |title=Necrotizing fasciitis |journal=Canadian Family Physician |volume=55 |issue=10 |pages=981–987 |pmc=2762295 |pmid=19826154}}</ref> CT scan may show fascial thickening, edema, or abscess formation.<ref name="Hak2014" /><ref name=":0" /> CT is able to pick up on [[Subcutaneous emphysema|gas within tissues]] better than MRI, but it is not unusual for NF to present without gas on imaging.<ref name=":0" /> In addition, CT is helpful in evaluating complications due to NF and finding possible sources of infections.<ref name=":0" /> Its use may be limited in pregnant patients and patients with kidney issues.<ref name=":0" />