Incremental value of the perivascular fat attenuation index surrounding the superior mesenteric artery on non-contrast CT for predicting SMA abnormalities in patients with acute abdominal pain
Objective To evaluate the predictive value of the perivascular fat attenuation index (FAI) surrounding the superior mesenteric artery (SMA) on non-contrast CT for SMA abnormalities in acute abdominal pain and FAI's incremental utility in risk models. Methods This retrospective study included 262 acute abdominal pain pa...