Interlaboratory comparison of femur surface reconstruction from CT data compared to reference optical 3D scan

Biomedical Engineering Online
Ehsan SoodmandMatthias Woiczinski

Abstract

The present study contrasts the accuracy of different reconstructed models with distinctive segmentation methods performed by various experts. Seven research groups reconstructed nine 3D models of one human femur based on an acquired CT image using their own computational methods. As a reference model for accuracy assessment, a 3D surface scan of the human femur was created using an optical measuring system. Prior to comparison, the femur was divided into four areas; "neck and greater trochanter", "proximal metaphysis", "diaphysis", and "distal metaphysis". The deviation analysis was carried out in GEOMAGIC studio v.2013 software. The results revealed that the highest deviation errors occurred in "neck and greater trochanter" area and "proximal metaphysis" area with RMSE of 0.84 and 0.83 mm respectively. In conclusion, this study shows that the average deviation of reconstructed models prepared by experts with various methods, skills and software from the surface 3D scan is lower than 0.79 mm, which is not a significant discrepancy.

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Citations

May 16, 2019·Computer Methods in Biomechanics and Biomedical Engineering·Daniel KluessMaeruan Kebbach
Jul 14, 2020·Computer Methods in Biomechanics and Biomedical Engineering·Cristina Falcinelli, Cari Whyne
Nov 10, 2020·Computer Methods in Biomechanics and Biomedical Engineering·Moeinoddin Mahmoudi, Hossein Mahbadi
Jun 26, 2021·Medical Engineering & Physics·Christoph OefnerMatthias Woiczinski
Nov 30, 2021·Journal of Anatomy·Romain PintoreJohn R Hutchinson

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Software Mentioned

GEOMAGIC
ATOS
Matic
YaDiv
AMIRA
MeshLab

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