AJR. American journal of roentgenology
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AJR Am J Roentgenol · Jan 2002
The "flat cava" sign revisited: what is its significance in patients without trauma?
The purpose of this study was to evaluate the clinical significance of the "flat cava" sign on abdominal CT scans in hospitalized patients without trauma. ⋯ Of the 500 inpatients, 14% had a flat cava sign on at least one of the four levels examined on abdominal CT scans. The majority of these patients with a flat cava sign did not have hypotension or evidence of hypovolemia, but a minority (30%) did.