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Coil device of magnetic resonance imaging system

A technology of magnetic resonance equipment and coil devices, which is applied in the fields of magnetic resonance measurement, measurement devices, and material analysis through resonance, and can solve problems such as not being independent of each other

Inactive Publication Date: 2012-06-13
SIEMENS AG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] But in USA5153517 the coil units can always only be operated in pairs, that is to say not independent of each other

Method used

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  • Coil device of magnetic resonance imaging system
  • Coil device of magnetic resonance imaging system
  • Coil device of magnetic resonance imaging system

Examples

Experimental program
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Embodiment Construction

[0018] Figure 1 to Figure 4 Different embodiments of the same basic structure of a coil arrangement are shown. Thus, in Figure 1 to Figure 4 in (also in Figure 5 to Figure 9 ), the same elements are denoted by the same reference numerals.

[0019] according to Figure 1 to Figure 4 , the coil arrangement for a magnetic resonance system has a plurality of coil units 1 . The coil units 1 are arranged around a common central area 2 and are connected to one another via this central area 2 . The number of coil units 1 in figure 1 There are 4 in figure 2 is 5 in image 3 There are 6 in the Figure 4 There are 7 of them. There may also be other numbers of coil units 1, for example 8, 9, 10... coil units 1

[0020] Each coil unit 1 has its own feed capacitor 3 which is dedicated to this coil unit 1 . The feed capacitor 3 is here arranged in the conductor section 4 assigned to the coil unit 1 . High-frequency currents can thus be fed or coupled into the individual coil...

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PUM

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Abstract

A coil device of magnetic resonance equipment consists of multiple coil unit being set independently to each other around a common central region. It is featured as coupling two directly adjacent coil units in capacity mode or in inductance mode, setting a capacitor network in central region and using said capacitor network to connect coil units of coil device with each other for reducing couple between coil units which are not directly adjacent to each other.

Description

technical field [0001] The invention relates to a coil arrangement for a magnetic resonance system having a plurality of coil units arranged around a common central region, wherein each coil unit of the coil arrangement is decoupled from the directly adjacent coil unit . Background technique [0002] Such a coil arrangement is known, for example, from USA 5153517. [0003] In the coil device disclosed in USA5153517, there are 4 coil units. Every two diametrically opposite coil units are coupled to each other. The coupling is such that the magnetic fields generated by one pair of diametrically opposed coil elements are perpendicular to the magnetic fields generated by the other diametrically opposed pair of coil elements. Therefore, the two pairs of coil units arranged diametrically opposite each other are decoupled from each other. [0004] In USA5153517, however, the coil units can always only be operated in pairs, that is to say not independently of each other. Only i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R33/20G01R33/34G01R33/341
CPCG01R33/3415G01R33/365
Inventor 杜健军阿恩·雷科夫斯基马库斯·维斯特汪坚敏
Owner SIEMENS AG