Surgery – Truss – Pad
Patent
1992-12-10
1994-10-11
Cohen, Lee S.
Surgery
Truss
Pad
1286535, 128658, A61B 5055
Patent
active
053537955
ABSTRACT:
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 applied magnetic gradients to determine the position of the device in several dimensions. Sensitivity of the measured position to resonance offset conditions such as transmitter frequency misadjustment, chemical shift and the like is minimized by repeating the process a plurality of times with selected amplitudes and polarities for the applied magnetic field gradient. Linear combinations of the data acquired responsive to the different applied magnetic field gradients are computed to determine the position of the device in three orthogonal dimensions. The position of the device as determined by the tracking system is superimposed upon independently acquired medical diagnostic images.
REFERENCES:
patent: 4254778 (1981-03-01), Clow et al.
patent: 4527198 (1986-02-01), Codrington
patent: 4613837 (1986-09-01), Blass et al.
patent: 4638252 (1987-01-01), Bradshaw
patent: 4672972 (1987-06-01), Berke
patent: 4799015 (1989-01-01), Sepponen
patent: 4889127 (1989-12-01), Takeda et al.
patent: 4962763 (1990-10-01), Sato et al.
patent: 4966149 (1990-10-01), Stokar
patent: 4989608 (1991-02-01), Ratner
patent: 4995394 (1991-02-01), Cline et al.
patent: 5005592 (1991-04-01), Cartmell
patent: 5042486 (1991-08-01), Pfeiler et al.
patent: 5099895 (1992-03-01), Besz et al.
patent: 5107862 (1992-04-01), Fabian et al.
patent: 5170789 (1992-12-01), Narayan et al.
Darrow Robert D.
Dumoulin Charles L.
Souza Steven P.
Casler Brian L.
Cohen Lee S.
General Electric Company
Snyder Marvin
Zale Lawrence P.
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