Coach-BP: Computer Vision-Based Assessment and Correction of Blood Pressure Measurement Technique

Coach-BP, a computer-vision system for clinic BP measurement technique, detects errors across five American Heart Association criteria with mean AUROC 0.93 (95% CI 0.90–0.94).

• Why it matters: Posture and related technique issues can raise systolic BP by over 20 mm Hg, but technique is seldom verified objectively during hypertension care.
• What they did: Adults at an academic cardiovascular prevention center (Feb–Apr 2026) were filmed with front and side cameras across 408 encounters; models trained on clinician labels were tested with leave-one-participant-out cross-validation.
• The result: Coach-BP achieved mean balanced accuracy 0.88 (0.85–0.90) and remained robust to simulated camera shift, zoom, and rotation, enabling objective criterion-by-criterion assessment from video.

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