Multitemporal Volume Registration for the Analysis of Rheumatoid Arthritis Evolution in the Wrist
Joint Authors
Ferretti, Roberta
Dellepiane, Silvana G.
Source
International Journal of Biomedical Imaging
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-10-19
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
This paper describes a method based on an automatic segmentation process to coregister carpal bones of the same patient imaged at different time points.
A rigid registration was chosen to avoid artificial bone deformations and to allow finding eventual differences in the bone shape due to erosion, disease regression, or other eventual pathological signs.
The actual registration step is performed on the basis of principal inertial axes of each carpal bone volume, as estimated from the inertia matrix.
In contrast to already published approaches, the proposed method suggests splitting the 3D rotation into successive rotations about one axis at a time (the so-called basic or elemental rotations).
In such a way, singularity and ambiguity drawbacks affecting other classical methods, for instance, the Euler angles method, are addressed.
The proposed method was quantitatively evaluated using a set of real magnetic resonance imaging (MRI) sequences acquired at two different times from healthy wrists and by choosing a direct volumetric comparison as a cost function.
Both the segmentation and registration steps are not based on a priori models, and they are therefore able to obtain good results even in pathological cases, as proven by the visual evaluation of actual pathological cases.
American Psychological Association (APA)
Ferretti, Roberta& Dellepiane, Silvana G.. 2017. Multitemporal Volume Registration for the Analysis of Rheumatoid Arthritis Evolution in the Wrist. International Journal of Biomedical Imaging،Vol. 2017, no. 2017, pp.1-12.
https://search.emarefa.net/detail/BIM-1159682
Modern Language Association (MLA)
Ferretti, Roberta& Dellepiane, Silvana G.. Multitemporal Volume Registration for the Analysis of Rheumatoid Arthritis Evolution in the Wrist. International Journal of Biomedical Imaging No. 2017 (2017), pp.1-12.
https://search.emarefa.net/detail/BIM-1159682
American Medical Association (AMA)
Ferretti, Roberta& Dellepiane, Silvana G.. Multitemporal Volume Registration for the Analysis of Rheumatoid Arthritis Evolution in the Wrist. International Journal of Biomedical Imaging. 2017. Vol. 2017, no. 2017, pp.1-12.
https://search.emarefa.net/detail/BIM-1159682
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1159682