| Presentation | 2019-01-23 Development of Three-Dimensional Imaging Method of Magnetic Nanoparticles Shohei Hamanaga, Shuya Nogata, Teruyoshi Sasayama, Keiji Enpuku, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Magnetic particle imaging (MPI) has been extensively studied for in-vivo biomedical diagnosis. We have been developing an MPI system using multiple pickup coils and weak gradient field, which is capable of imaging three-dimensional distribution of magnetic nanoparticles (MNP). In the experiment, we performed the three-dimensional MPI experiment of two samples containing different amounts (10 μg, 20 μg) of magnetic nanoparticles. The number of pickup coils was increased to 10. An excitation field with strength of 1.6 mT at 3 kHz and a DC gradient field with a small field gradient of 0.13 T/m were used. A third harmonic signal generated from the MNP samples was detected with ten pickup coils, and the samples were two-dimensionally scanned to obtain field maps. Then, the field maps were analyzed using the nonnegative least square method to reconstruct a three-dimensional distribution image. We successfully estimated the three-dimensional positions of the two MNP samples with better accuracy and less artifacts, compared to our previous case using five pickup coils. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | magnetic particle imaging / multiple pickup coils / gradient coil / NNLS |
| Paper # | SCE2018-31 |
| Date of Issue | 2019-01-16 (SCE) |
| Conference Information | |
| Committee | SCE |
|---|---|
| Conference Date | 2019/1/23(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Hiroaki Myoren(Saitama Univ.) |
| Vice Chair | |
| Secretary | (Nagoya Univ.) |
| Assistant | Hiroyuki Akaike(Daido Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Superconductive Electronics |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Development of Three-Dimensional Imaging Method of Magnetic Nanoparticles |
| Sub Title (in English) | |
| Keyword(1) | magnetic particle imaging |
| Keyword(2) | multiple pickup coils |
| Keyword(3) | gradient coil |
| Keyword(4) | NNLS |
| 1st Author's Name | Shohei Hamanaga |
| 1st Author's Affiliation | Kyushu University(Kyushu Univ.) |
| 2nd Author's Name | Shuya Nogata |
| 2nd Author's Affiliation | Kyushu University(Kyushu Univ.) |
| 3rd Author's Name | Teruyoshi Sasayama |
| 3rd Author's Affiliation | Kyushu University(Kyushu Univ.) |
| 4th Author's Name | Keiji Enpuku |
| 4th Author's Affiliation | Kyushu University(Kyushu Univ.) |
| Date | 2019-01-23 |
| Paper # | SCE2018-31 |
| Volume (vol) | vol.118 |
| Number (no) | SCE-415 |
| Page | pp.pp.35-40(SCE), |
| #Pages | 6 |
| Date of Issue | 2019-01-16 (SCE) |