Patent classifications
G
PHYSICS
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G01
MEASURING; TESTING
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G01R
MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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33/00
Arrangements or instruments for measuring magnetic variables
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G01R33/20
involving magnetic resonance
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G01R33/28
Details of apparatus provided for in groups G01R33/44 - G01R33/64
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G01R33/285
Invasive instruments, e.g. catheters or biopsy needles, specially adapted for tracking, guiding or visualization by NMR
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G01R33/287
involving active visualization of interventional instruments, e.g. using active tracking RF coils or coils for intentionally creating magnetic field inhomogeneities
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