Automatic Labeling of Vertebral Levels Using a Robust Template-Based Approach
Joint Authors
Cohen-Adad, Julien
Ullmann, Eugénie
Pelletier Paquette, Jean François
Thong, William E.
Source
International Journal of Biomedical Imaging
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-07-15
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Context.
MRI of the spinal cord provides a variety of biomarkers sensitive to white matter integrity and neuronal function.
Current processing methods are based on manual labeling of vertebral levels, which is time consuming and prone to user bias.
Although several methods for automatic labeling have been published; they are not robust towards image contrast or towards susceptibility-related artifacts.
Methods.
Intervertebral disks are detected from the 3D analysis of the intensity profile along the spine.
The robustness of the disk detection is improved by using a template of vertebral distance, which was generated from a training dataset.
The developed method has been validated using T1- and T2-weighted contrasts in ten healthy subjects and one patient with spinal cord injury.
Results.
Accuracy of vertebral labeling was 100%.
Mean absolute error was 2.1 ± 1.7 mm for T2-weighted images and 2.3 ± 1.6 mm for T1-weighted images.
The vertebrae of the spinal cord injured patient were correctly labeled, despite the presence of artifacts caused by metallic implants.
Discussion.
We proposed a template-based method for robust labeling of vertebral levels along the whole spinal cord for T1- and T2-weighted contrasts.
The method is freely available as part of the spinal cord toolbox.
American Psychological Association (APA)
Ullmann, Eugénie& Pelletier Paquette, Jean François& Thong, William E.& Cohen-Adad, Julien. 2014. Automatic Labeling of Vertebral Levels Using a Robust Template-Based Approach. International Journal of Biomedical Imaging،Vol. 2014, no. 2014, pp.1-9.
https://search.emarefa.net/detail/BIM-493180
Modern Language Association (MLA)
Ullmann, Eugénie…[et al.]. Automatic Labeling of Vertebral Levels Using a Robust Template-Based Approach. International Journal of Biomedical Imaging No. 2014 (2014), pp.1-9.
https://search.emarefa.net/detail/BIM-493180
American Medical Association (AMA)
Ullmann, Eugénie& Pelletier Paquette, Jean François& Thong, William E.& Cohen-Adad, Julien. Automatic Labeling of Vertebral Levels Using a Robust Template-Based Approach. International Journal of Biomedical Imaging. 2014. Vol. 2014, no. 2014, pp.1-9.
https://search.emarefa.net/detail/BIM-493180
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-493180