Leg edema quantification for heart failure patients via 3D imaging

Area of Science:

• Biomedical Engineering
• Cardiology
• Medical Imaging

Background:

• Heart failure is a prevalent condition in elderly individuals, with high hospital readmission rates (approx. 50% within six months).
• Current home monitoring systems for heart failure lack accuracy, leading to false alarms and underdiagnoses.
• Leg edema detection is crucial for effective heart failure management.

Purpose of the Study:

• To evaluate a 3D camera-based system for geometric detection and quantification of leg edema.
• To assess the potential of 3D imaging as a cost-effective tool for heart failure home monitoring.

Main Methods:

• Utilized a 3D camera to capture leg images.
• Semi-automatically extracted geometric parameters from 3D leg images.
• Assessed intra-subject variability in healthy individuals and correlated 3D parameters with body weight and leg circumference in a clinical study.

Main Results:

• Strong correlation was observed between 3D parameters (instep height) and reference values (body weight, leg circumference).
• Low correlation was found between lower leg curvature and reference values.
• The 3D imaging setup demonstrated potential for accurate leg edema measurement.

Conclusions:

• 3D imaging shows promise as a valuable and cost-effective addition to home monitoring for heart failure patients.
• Further prospective studies are required to validate the clinical utility of this technology.
• Improved leg edema detection through 3D imaging could enhance the accuracy of heart failure home monitoring systems.