Fast accurate stereoradiographic 3D-reconstruction of the spine using a combined geometric and statistic model

被引:141
作者
Pomero, V
Mitton, D
Laporte, S
de Guise, JA
Skalli, W
机构
[1] CNRS, ENSAM, UMR 8005, Biomech Lab, F-75013 Paris, France
[2] CRCHUM, ETS, Lab Rech Imagerie & Orthopedie, Montreal, PQ, Canada
关键词
stereoradiography; 3D-modelling; semi-automated; spine; scoliosis; CT-scan; morphological database;
D O I
10.1016/j.clinbiomech.2003.11.014
中图分类号
R318 [生物医学工程];
学科分类号
0831 [生物医学工程];
摘要
Objective. To describe and evaluate a fast accurate stereoradiographic 3D-reconstruction method of the spine. Background. Stereoradiographic methods based on anatomical landmarks identification are the only ones providing information on 3D-deformities of the spine in a standing position, but require 2-4 h for the whole spine, making the method inadequate for clinical routine. Methods. The proposed semi-automated method is based on (1) vertebral body volume reconstruction, (2) definition of a local referential associated to this volume, (3) reliable a priori knowledge of the vertebral shape using eight morphologic descriptors of the vertebral body to estimate, from a multiple linear regression, 21 3D-point coordinates per vertebra, (4) kriging of a 2000 points model with regard to the 21 points. The method was evaluated for vertebral orientation and shape accuracy. Results. 3D models of the whole spine are obtained within 15 min. Manual vs. semi-automated reconstruction comparison yield similar accuracy regarding the CT-scan references. For vertebrae orientation, results were slightly different from the manual reconstruction method (however an absolute reference is lacking). Conclusion. The stereoradiographic 3D-reconstruction method allows for a significant reduction of the whole reconstruction time, with regard to previously described methods. Moreover, the accuracy was evaluated and was found to be comparable to the accuracy of previous methods. The results of this study show that stereo radiography could now be employed in routine clinical environment.
引用
收藏
页码:240 / 247
页数:8
相关论文
共 24 条
[1]
OPTIMIZED VERTICAL STEREO BASE RADIOGRAPHIC SETUP FOR THE CLINICAL 3-DIMENSIONAL RECONSTRUCTION OF THE HUMAN SPINE [J].
ANDRE, B ;
DANSEREAU, J ;
LABELLE, H .
JOURNAL OF BIOMECHANICS, 1994, 27 (08) :1023-&
[2]
MEASUREMENTS OF THE 3-DIMENSIONAL SHAPE OF THE RIB CAGE [J].
DANSEREAU, J ;
STOKES, IAF .
JOURNAL OF BIOMECHANICS, 1988, 21 (11) :893-901
[3]
DELORME S, 1996, MEMOIRE MAITRISE ECO
[4]
DESCHENES S, 2003, P SPIE ANN M 2003 IM
[5]
EVALUATION OF FRONTAL RADIOGRAPHS OF SCOLIOTIC SPINES .2. RELATIONS BETWEEN LATERAL DEVIATION, LATERAL TILT AND AXIAL ROTATION OF VERTEBRAE [J].
DRERUP, B ;
HIERHOLZER, E .
JOURNAL OF BIOMECHANICS, 1992, 25 (12) :1443-1450
[6]
DUBOUSSET J, 1992, P 7 INT S 3 D SCOL D
[7]
Explicit calibration method and specific device designed for stereoradiography [J].
Dumas, R ;
Mitton, D ;
Laporte, S ;
Dubousset, J ;
Steib, JP ;
Lavaste, F ;
Skalli, W .
JOURNAL OF BIOMECHANICS, 2003, 36 (06) :827-834
[8]
Three-dimensional quantitative segmental analysis of scoliosis corrected by the in situ contouring technique [J].
Dumas, R ;
Steib, JP ;
Mitton, D ;
Lavaste, F ;
Skalli, W .
SPINE, 2003, 28 (11) :1158-1162
[9]
DUMAS R, 2003, IN PRESS MED ENG PHY, V25
[10]
ISMAEL B, 1995, ETUDE MORPHOMETRIQUE