Repeatability and clinical utility in stereophotogrammetric measurements of wounds

J Wound Care. 2013 Feb;22(2):90-2, 94-7. doi: 10.12968/jowc.2013.22.2.90.


Objective: To investigate the hypothesis that stereophotogrammetric wound size monitoring shows suitable inter-observer reliability and user acceptance for clinical practice use.

Method: Veterans admitted for conservative management of severe pressure ulcers were eligible for inclusion in the study. Three-dimensional (3D) digital wound images were independently captured by two expert and two non-expert nurse-observers using a commercially available stereophotogrammetry system,weekly for 6 weeks.A double-blinded analyst generated 3D wound reconstructions, using software to determine geometry. Clinical opinion of wound progression was provided by an expert physician.

Results: Thirteen wounds were assessed with more than 80% of all images being readable. Interclass correlation of 0.9867 (p < 0.000 I) was observed. Compared with clinical opinion, 3D wound measurement was sensitive between improving and static wounds for wound perimeter, volume, depth and length.

Conclusion: These preliminary findings suggest that 3D wound measurement minimises differences in wound measurement between expert and non-expert observers, suggesting it could be implemented with high reliability in health-care settings where several observers are involved in wound care management.

Publication types

  • Evaluation Study
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Adult
  • Attitude of Health Personnel
  • Double-Blind Method
  • Humans
  • Imaging, Three-Dimensional
  • Observer Variation
  • Photogrammetry / methods
  • Photogrammetry / nursing*
  • Pressure Ulcer / nursing
  • Pressure Ulcer / pathology*
  • Prospective Studies
  • Reproducibility of Results
  • Veterans