• Systematic unenhanced CT improves significantly diagnosis accuracy compared to current practice. • Systematic unenhanced CT optimizes appropriate hospitalization by increasing the number of discharged patients. • Systematic unenhanced CT allows detection of about one-third of acute unsuspected abdominal conditions. • It should allow boosting emergency department management decision-making confidence in old patients.
• Appendiceal diameter and marked left tubal thickening allow differentiating PID from AA. • PID should be considered if appendiceal diameter is < 7 mm. • Marked left tubal diameter indicates PID rather than AA when enlarged appendix. • No pathological CT findings were identified in 5 % of PID patients.
In the care of elderly patients, CT is accurate for diagnosing the cause of acute abdominal pain, particularly when it is of surgical origin, regardless of the availability of clinical and biologic findings. Thus CT interpretation should not be delayed until complete clinicobiologic data are available, and the images should be quickly transmitted to the emergency physician so that appropriate therapy can be begun.
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