Torso geometry reconstruction and body surface electrode localization using three-dimensional photography

Erick A. Perez-Alday, Jason A. Thomas, Muammar Kabir, Golriz Sedaghat, Nichole Rogovoy, Eelco van Dam, Peter van Dam, William Woodward, Cristina Fuss, Maros Ferencik, Larisa Tereshchenko

Research output: Contribution to journalArticle

2 Scopus citations


We conducted a prospective clinical study (n = 14; 29% female) to assess the accuracy of a three-dimensional (3D) photography-based method of torso geometry reconstruction and body surface electrodes localization. The position of 74 body surface electrocardiographic (ECG) electrodes (diameter 5. mm) was defined by two methods: 3D photography, and CT (marker diameter 2. mm) or MRI (marker size 10. ×. 20. mm) imaging. Bland-Altman analysis showed good agreement in X (bias -2.5 [95% limits of agreement (LoA) -19.5 to 14.3] mm), Y (bias -0.1 [95% LoA -14.1 to 13.9] mm), and Z coordinates (bias -0.8 [95% LoA -15.6 to 14.2] mm), as defined by the CT/MRI imaging, and 3D photography. The average Hausdorff distance between the two torso geometry reconstructions was 11.17. ±. 3.05. mm. Thus, accurate torso geometry reconstruction using 3D photography is feasible. Body surface ECG electrodes coordinates as defined by the CT/MRI imaging, and 3D photography, are in good agreement.

Original languageEnglish (US)
JournalJournal of Electrocardiology
StateAccepted/In press - 2017



  • ECG imaging
  • ECG recording
  • Electrode position

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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