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AI Tool Improves Detection of Incidental PE on CT Scans

AuntMinnieIndustry

An AI algorithm enhanced radiologists' detection of incidental pulmonary emboli (IPE) on routine contrast-enhanced CT studies.

Key Details

  • 1Study assessed 14,453 contrast-enhanced outpatient CT chest/abdomen/pelvis exams for IPEs using Aidoc's AI algorithm.
  • 2AI detected 224 IPE cases, 36 of which radiologists missed; these were mostly small and distal emboli.
  • 3AI missed 30 IPEs that radiologists found, most being small, with one large central embolus missed.
  • 4Radiologist re-review of 1,400 negative cases found 8 additional IPEs missed initially.
  • 5Specificity for identifying IPE: 65.1% for radiologists, 66.9% for AI, and 75.8% when combined.
  • 6AI showed similar sensitivity as radiologists but a lower positive predictive value; false positive rate noted.

Why It Matters

Automated AI second reads can improve detection of incidental findings on routine CT exams, suggesting a synergistic workflow where AI and human expertise together outperform either alone. This has potential clinical impact for patient outcomes and radiology practice, though current AI tools require continued human oversight.

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