A multi-view active contour method for bone cement reconstruction from C-arm X-ray images

Authors:
Blake C. Lucas;Yoshito Otake;Mehran Armand;Russell H. Taylor
Affiliations:
Dept. of Computer Science, Johns Hopkins University, Baltimore, Maryland and Johns Hopkins Applied Physics Laboratory, Laurel, Maryland;Dept. of Computer Science, Johns Hopkins University, Baltimore, Maryland;Johns Hopkins Applied Physics Laboratory, Laurel, Maryland;Dept. of Computer Science, Johns Hopkins University, Baltimore, Maryland
Venue:
IPCAI'11 Proceedings of the Second international conference on Information processing in computer-assisted interventions
Year:
2011

Citing 5
Cited 0

Geodesic Active Contours

International Journal of Computer Vision
A Theory of Shape by Space Carving

International Journal of Computer Vision - Special issue on Genomic Signal Processing
The Visual Hull Concept for Silhouette-Based Image Understanding

IEEE Transactions on Pattern Analysis and Machine Intelligence
Stereoscopic Segmentation

International Journal of Computer Vision
Dynamic Cone Beam Reconstruction Using a New Level Set Formulation

MICCAI '09 Proceedings of the 12th International Conference on Medical Image Computing and Computer-Assisted Intervention: Part II

Quantified Score

Hi-index	0.00

Visualization

Abstract

A novel algorithm is presented to segment and reconstruct injected bone cement from a sparse set of X-Ray images acquired at arbitrary poses. The Sparse X-Ray Multi-view Active Contour (SxMAC - pronounced "smack") can (1) reconstruct objects for which the background partially occludes the object in X-Ray images, (2) use X-Ray images acquired on a non-circular trajectory, and (3) incorporate prior CT information. The algorithm's inputs are preprocessed X-Ray images, their associated pose information, and prior CT, if available. The algorithm initiates automated reconstruction using visual hull computation from a sparse number of x-ray images. It then improves the accuracy of the reconstruction by optimizing a geodesic active contour. A cadaver experiment demonstrates SxMAC's ability to reconstruct high contrast bone cement that has been injected into a femur and achieve sub-millimeter accuracy with 4 images.