Overview

• The Foot Study monitored 26 heart failure patients across five NHS trusts from 2020 to 2022 using the AI scanner alongside Bluetooth-enabled scales.
• The wall-mounted device captures almost 2,000 images per minute to measure fluid retention in feet and ankles and calculate oedema levels automatically.
• Alerts from the scanner arrived on average 13 days before hospital admission, while weight scales failed to predict any heart failure–related admissions due to inconsistent patient use.
• Eighteen of the 22 surviving participants chose to keep the AI device after the trial, highlighting high patient acceptance and ease of use.
• Professor Bryan Williams of the British Heart Foundation said that earlier alerts could transform care by enabling timely treatment adjustments.