| Autor: |
Thorsten M. Buzug, Alexander E. Weber, J. Frank, Jürgen Weizenecker, Ulrich Heinen |
| Rok vydání: |
2015 |
| Předmět: |
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| Zdroj: |
2015 5th International Workshop on Magnetic Particle Imaging (IWMPI). |
| DOI: |
10.1109/iwmpi.2015.7107048 |
| Popis: |
In Magnetic Particle Imaging (MPI) the relation between the measurement signal and the particle distribution can be described by the so-called system matrix [1]. For the 1D case assuming ideal magnetic fields and ideal particles with a step function as magnetization response, the single system function components can be represented by Chebyshev polynomials [2]. In this case, the particle distribution can be reconstructed using a Chebyshev transformation. But since the homogenous part is stored in the excitation frequency component which is filtered out in typical scanner setups, it is not possible to reconstruct a particle distribution which is constant over the area reached by the Field-Free-Point (FFP-area). In this work the reconstruction of a constant particle distribution overlapping the FFP-area using the system matrix approach is evaluated by a 2D simulation study. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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