Pneumatosis and portal venous gas: do CT findings reassure?
Older age, peritoneal signs, and high BUN are associated with I/N, suggesting an ability to predict which patients need operation. CT findings traditionally suggestive of ischemic PN/PVG, however, do not diagnose I/N accurately enough to reliably identify patients needing operation.
The use of the indicator variable instead the FFQ appears as a good alternative to estimate usual intake of episodically consumed foods.