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. |