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Geometric calibration of a stationary digital breast tomosynthesis system based on distributed carbon nanotube X-ray source arrays
- Source :
- PLoS ONE, Vol 12, Iss 11, p e0188367 (2017), PLoS ONE
- Publication Year :
- 2017
- Publisher :
- Public Library of Science (PLoS), 2017.
-
Abstract
- Stationary digital breast tomosynthesis (sDBT) with distributed X-ray sources based on carbon nanotube (CNT) field emission cathodes has been recently proposed as an approach that can prevent motion blur produced by traditional DBT systems. In this paper, we simulate a geometric calibration method based on a proposed multi-source CNT X-ray sDBT system. This method is a projection matrix-based approach with seven geometric parameters, all of which can be obtained from only one projection datum of the phantom. To our knowledge, this study reports the first application of this approach in a CNT-based multi-beam X-ray sDBT system. The simulation results showed that the extracted geometric parameters from the calculated projection matrix are extremely close to the input values and that the proposed method is effective and reliable for a square sDBT system. In addition, a traditional cone-beam computed tomography (CT) system was also simulated, and the uncalibrated and calibrated geometric parameters were used in image reconstruction based on the filtered back-projection (FBP) method. The results indicated that the images reconstructed with calibrated geometric parameters have fewer artifacts and are closer to the reference image. All the simulation tests showed that this geometric calibration method is optimized for sDBT systems but can also be applied to other application-specific CT imaging systems.
- Subjects :
- Computer science
Image Processing
lcsh:Medicine
Computed tomography
Square (algebra)
Diagnostic Radiology
030218 nuclear medicine & medical imaging
0302 clinical medicine
Medicine and Health Sciences
Nanotechnology
Breast
lcsh:Science
Tomography
Multidisciplinary
medicine.diagnostic_test
Radiology and Imaging
Applied Mathematics
Simulation and Modeling
Geodetic datum
Bone Imaging
030220 oncology & carcinogenesis
Calibration
Physical Sciences
Engineering and Technology
Female
Carbon Nanotubes
Algorithm
Algorithms
Mammography
Research Article
Optimization
Imaging Techniques
Neuroimaging
Image processing
Iterative reconstruction
Research and Analysis Methods
Imaging phantom
Projection (linear algebra)
03 medical and health sciences
Diagnostic Medicine
medicine
Humans
Nanotubes, Carbon
lcsh:R
Motion blur
Biology and Life Sciences
Computed Axial Tomography
X-Ray Radiography
Signal Processing
lcsh:Q
Mathematics
Neuroscience
Subjects
Details
- ISSN :
- 19326203
- Volume :
- 12
- Database :
- OpenAIRE
- Journal :
- PLOS ONE
- Accession number :
- edsair.doi.dedup.....7fe532b48f855cb927d2855911ebb197