Objective:

To evaluate the potential of three-dimensional laser scanning (3DLS) for lower limb volume assessment in older adults with heart failure.

Approach:

• Participants: Eight older adults with heart failure (mean age 73 ± 4.51 years) were recruited for the study.
• Measurement Methods: Lower limb volumes were assessed using both the circumferential method (CM) and 3DLS, with various digital volume quantification algorithms applied.
• Statistical Analysis: Correlation, linear regression, and Bland–Altman plots were utilized to evaluate the agreement between the two measurement methods.

Key Findings:

• Significant correlations were observed between all digital methods and the circumferential method.
• The DELA VERT-3DLS method showed the highest correlation (r = 0.856; p < 0.001).
• Bland–Altman analysis indicated a consistent trend of overestimation among digital methods.

Interpretation:

The preliminary findings suggest that 3DLS is a feasible and potentially practical approach for lower limb volumetric assessment in older adults with heart failure.

Limitations:

• The study had a small sample size.
• Further studies with larger cohorts are needed to confirm feasibility and explore reliability and clinical applicability.

Conclusion:

Further research is warranted to validate the findings and assess the clinical utility of 3DLS in this population.