发明名称 |
Markers, phantoms and associated methods for calibrating imaging systems |
摘要 |
A marker for calibrating both an MRI system and an x-ray system comprises a first non-magnetic component 12 of a first mass density and a first hydrogen proton density and a second non-magnetic component 14 of a second mass density and a second hydrogen proton density. The first mass and proton densities are different from the second mass and proton densities. The first component may contact the second component such that a boundary between the components is visible in both MRI and x-ray images. The first component may be a ceramic and the second component may be a liquid. The first component is visible in MRI images and the second component is visible in x-ray images. Several markers may be incorporated into a phantom for registering the coordinate systems of an MRI and x-ray scan. The marker may be used in a combined radiotherapy and imaging system. |
申请公布号 |
GB2512416(A) |
申请公布日期 |
2014.10.01 |
申请号 |
GB20130018959 |
申请日期 |
2013.10.28 |
申请人 |
ELEKTA AB (PUBL) |
发明人 |
MARTIN SELL;DAVID MILLS;JOHN ALLEN;JULIAN BYRNE;DAVID ANTHONY ROBERTS |
分类号 |
G01R33/58 |
主分类号 |
G01R33/58 |
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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