BERNHARD GLEICH,JÜRGEN ERWIN RAHMER,PETER VERNICKEL,ULRICH KATSCHER
申请号：
BR112012002434
公开号：
BR112012002434A2
申请日:
2010.08.02
申请国别(地区):
BR
年份:
2020
代理人:
摘要：
apparatus for determining at least one electromagnetic quantity, method for determining at least one electromagnetic quantity and computer program the present invention relates to an apparatus (100) for determining at least one electromagnetic quantity describing an electromagnetic property of an object, in particular a human body, in which said object contains magnetic particles. the apparatus (100) applying the known principle of the magnetic particle image (mpi) comprises selection means to generate a magnetic selection field (50) having the known field pattern showing a free point of the field (ffp), conduction means to change the position in the ffp space by means of a magnetic conduction field, receiving means to acquire detection signals depending on the magnetization of the magnetic particles within a field of view (28) and a reconstructive unit (152) to reconstruct a amount of particle distribution depending on the detection signals. the apparatus (100) further comprises a control unit (150) for controlling the receiving means to acquire a first group of detection signals corresponding to a first frequency of the conduction field and a second group of detection signals corresponding to a second frequency of the driving field, with the frequencies of the driving field differing from each other. the control unit (15) further controls the reconstructive unit (152) to reconstruct a first amount of particle distribution depending on the first group of detection signals and a second amount of particle distribution depending on the second group of detection signals. the apparatus (100) further comprises a determination unit (160) for determining the electromagnetic amount depending on the first and second amount of 2/2 particle distribution. the present invention also relates to a corresponding method, as well as to a computer program.aparelho para determinar pelo menos uma quantidade eletromagnética, método para determinar pelo menos uma quantidade eletromagnétic
