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| Content Provider | Springer Nature Link |
|---|---|
| Author | You, XiaoFei Wang, Zheng Zhang, XiaoBing Yang, WenHui Song, Tao |
| Copyright Year | 2013 |
| Abstract | A mathematical model based on mixed integer programming is presented in this paper for the passive shimming of magnet in magnetic resonance imaging (MRI) scanner. In this model, the magnetic field inhomogeneity tolerance and the central value of the magnetic field after shimming are programmed together with the volume of each shim piece as the variables, which increases the degree of freedom and guarantees a better solution. The magnetic field inhomogeneity tolerance after shimming with a weighting coefficient and the total volume of shim pieces are both contained in the objective function of the model. By assigning different values to the weighting coefficient in the objective function, different shimming plans with different emphases can be obtained. A simulation test has been carried out on a small permanent magnet with frame structure. Several solutions are given and compared in this paper, which indicates that a practical shimming plan can be obtained quickly by solving this model. |
| Starting Page | 1208 |
| Ending Page | 1212 |
| Page Count | 5 |
| File Format | |
| ISSN | 16747321 |
| Journal | Science in China Series E: Technological Sciences |
| Volume Number | 56 |
| Issue Number | 5 |
| e-ISSN | 18691900 |
| Language | English |
| Publisher | SP Science China Press |
| Publisher Date | 2013-03-09 |
| Publisher Place | Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | mixed integer programming passive shimming magnetic resonance imaging (MRI) Engineering |
| Content Type | Text |
| Resource Type | Article |
| Subject | Engineering Materials Science |
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