发明名称 |
Tracking system and pulse sequences to monitor the position of a device using magnetic resonance |
摘要 |
A tracking system employs magnetic resonance signals to monitor the position of a device such as a catheter within a subject. The device has a receiver coil which is sensitive to magnetic resonance signals generated in the subject. These signals are detected in the presence of magnetic field gradients and thus have frequencies which are substantially proportional to the location of the coil along the direction of the applied gradient. Signals are detected responsive to sequentially applied mutually orthogonal magnetic gradients to determine the position of the device in several dimensions. The position of the device as determined by the tracking system is superimposed upon independently acquired medical diagnostic images.
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申请公布号 |
US5307808(A) |
申请公布日期 |
1994.05.03 |
申请号 |
US19920861718 |
申请日期 |
1992.04.01 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
DUMOULIN, CHARLES L.;SOUZA, STEVEN P.;DARROW, ROBERT D. |
分类号 |
A61B5/055;A61B5/06;G01R33/28;G01R33/32;G01R33/561;G01R33/563;(IPC1-7):A61B5/055 |
主分类号 |
A61B5/055 |
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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