发明名称 |
MRI apparatus and method for calculating predicted and/or actual net accumulated gradient coil heat and/or temperature |
摘要 |
A magnetic resonance imaging apparatus includes a calculator that calculates the quantity of heat generated (or to be generated) in a gradient magnetic field coil as a function of current supplied (or to be supplied) to the gradient magnetic field coil and at least one other factor such as eddy currents induced in a shield body used for shielding gradient field leakage flux from the imaged volume and/or delayed measurement of actual coil temperature. Such improved more timely temperature prediction and/or measurement is used to effect protective actions to better prevent permanent coil damage due to overheating.
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申请公布号 |
US2004017195(A1) |
申请公布日期 |
2004.01.29 |
申请号 |
US20030430386 |
申请日期 |
2003.05.07 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
KASSAI YOSHIMORI;YAMANAKA MASAAKI |
分类号 |
G01R33/28;A61B5/055;G01R33/385;(IPC1-7):G01V3/00 |
主分类号 |
G01R33/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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