Patent ID: 7187172
Filing Date: 2007-03-06
Classification: G01R

Abstract:
1. A method for controlling an RF device of a magnetic resonance tomography system during acquisition of magnetic resonance data from an examination subject that is moving relative to a transmission field radiated by said RF device, comprising the steps of: radiating RF pulses from said RF device at chronological intervals; acquiring measurement values respectively representing a power level of said RF pulses at chronological intervals; obtaining position values representing a current position of said examination subject relative to said transmission field at chronological intervals; automatically electronically determining exposure values, representing a physiological degree of effectiveness of said RF pulses on said examination subject, from said measurement values and said position values; automatically electronically calculating exposure control values based on a plurality of said exposure values; and limiting functioning of said RF device if one of said exposure control values equals or exceeds an exposure limit value.