| 発表年月日 | 2023/05/25 |
|---|---|
| 発表テーマ | ゼロボイルオフシステムと超伝導磁気シールドを備えた脳磁計のドライファントムによるダイポール推定精度の評価 |
| 会議名 | ISACM and JBBS 2023 |
| 主催者 | 日本生体磁気学会 |
| 開催地名 | 大阪市 |
| 学会区分 | 国際学会 |
| 発表形式 | 口頭（一般） |
| 単独共同区分 | 共同 |
| 国名 | 日本 |
| 開催期間 | 2023/05/25 ～ 2023/05/27 |
| 発表者・共同発表者 | 田中慶太，塚原彰彦，宮永裕樹，横山一博，山口喬，恒松正二，加藤隆典，松原雄二 |
| 概要 | We developed a MEG equipped with a zero boil-off system and a superconducting magnetic shield. In this study, the signal source of a virtual dipole was estimated using a dry phantom while the zero boil-off system was in operation, and the accuracy was evaluated in terms of the magnetic field distribution and estimation error due to changes in the frequency of the dipole. As a result, the magnetic field distribution corresponding to the current dipole and the estimation error were within a few millimeters for all conditions of current intensity and sinusoidal signal frequency. The results show the practicality and effectiveness of this system. |