ARKA Clinical Decision Support is designed to meet all four criteria for Non-Device CDS under FD&C Act §520(o)(1)(E) and FDA's January 2026 final guidance on Clinical Decision Support Software. Recommendations support, not replace, the clinician's judgment. Every recommendation is anchored in a published guideline or peer-reviewed source, with the basis available for independent review. CLIN emphasizes imaging appropriateness at order entry.
This recommendation is intended to support, not replace, clinical judgment. It is generated by ARKA, software designed to meet the four criteria for Non-Device Clinical Decision Support under FD&C Act §520(o)(1)(E) and FDA's final guidance on Clinical Decision Support Software (January 2026). The clinician is responsible for the final decision.
AIIE Evidence
EXPEDITE: suspected aortic dissection requires immediate CTA — do not stage workup with D-dimer or radiographs in high-suspicion patients.
Tearing chest or back pain, pulse deficits, or marked blood pressure differentials raise acute aortic syndrome, where mortality rises by the hour. ECG-gated CT angiography of the chest (often chest-abdomen-pelvis) is the definitive emergent study.
The AIIE synthesis above is ARKA-authored; the sources below are the underlying external literature.
Circulation · 2022doi:10.1161/CIR.0000000000001106
Circulation · 2021doi:10.1161/CIR.0000000000001029
American College of Radiology · 2024