AI Echo vs Human Readers: Comparable CMR Agreement, but 36.7% of LVOT Had Clinically Significant Errors

AI-assisted echo measurements of aortic root and LVOT showed comparable CMR agreement to human readers (ICC 0.70-0.77 vs 0.51-0.85), but 36.7% of LVOT, 20% of STJ, and 11.8% of SoV had clinically significant differences (≥2mm/≥4mm). Physician oversight remains necessary.

• Study compared AI-assisted echo, two expert readers, and CMR in 169 patients with analysable TTE and CMR within 7 days.
• AI ICCs: LVOT 0.70 (95% CI 0.61-0.77), STJ 0.77 (0.70-0.83), SoV 0.77 (0.70-0.83) — comparable to human expert-to-CMR agreement.
• Clinically significant differences (≥2 mm for LVOT, ≥4 mm for STJ/SoV) between AI and CMR were present in 36.7% for LVOT, 20% for STJ, and 11.8% for SoV.

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