Magnetic resonance apparatus, method and auxilliary coil...

Details Magnetic resonance apparatus, method and auxilliary coil... Magnetic resonance apparatus, method and auxilliary coil...

2008-03-21

2009-06-23

Shrivastav, Brij B (Department: 2831)

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

C324S318000

Reexamination Certificate

active

07550973

ABSTRACT:
In a method and arrangement for local manipulation of a B1field in a first region of an examination subject in an examination volume of a magnetic resonance system, a B1measurement value that represents the B1field in the sub-volume during an adjustment measurement is integrally determined, and in desired radio-frequency signal parameters for a subsequent magnetic resonance measurement are predetermined on the basis of the determined B1measurement value. At least during the adjustment measurement, the B1field is influenced within a second region counter to the manipulation intended in the first region by means of an auxiliary coil element which is arranged in or at the second region of the sub-volume remote from the first region.

REFERENCES:
patent: 6943552 (2005-09-01), Renz
patent: 6980001 (2005-12-01), Paley et al.
patent: 7204798 (2007-04-01), Zdeblick et al.
patent: 7242193 (2007-07-01), Feiweier
patent: 2007/0255128 (2007-11-01), Nistler

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