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Tunable and/or detunable mr receive coil arrangements

A technology of receiving coils and coils, applied in measurement devices, adjusting magnetic variables, control/adjustment systems, etc., can solve problems such as poor signal-to-noise ratio, and achieve the effect of avoiding interference or disturbance

Inactive Publication Date: 2009-09-09
KONINK PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This uncertain flip angle will lead to extensive image artifacts and poor signal-to-noise ratio (SNR)

Method used

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  • Tunable and/or detunable mr receive coil arrangements
  • Tunable and/or detunable mr receive coil arrangements
  • Tunable and/or detunable mr receive coil arrangements

Examples

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Embodiment Construction

[0030] In the drawings, like reference numerals are used to designate like parts. figure 1 An MR imaging system is shown delimiting an examination region 1 in which a patient P has been placed. The MR imaging system includes a device for generating a substantially uniform magnetic field (B 0 field) for aligning the nuclear spins of the body tissue of the patient P. It should be noted that the magnets 2, 3 may be the ends of a C-shaped magnet, or that the magnets 2, 3 may be cylindrical magnets delimiting the cylindrical examination zone 1 and substantially surrounding the patient P, as described above. In addition, the MR imaging system includes an RF transmitting structure 4 for transmitting RF excitation pulses (B 1 field), thereby exciting the aligned nuclear spins. The RF receiving structure 5 is arranged to receive RF relaxation signals which are emitted by the nuclear spins during relaxation after being excited by an RF pulse. The RF transmitting structure 4 and the ...

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Abstract

The present invention discloses MR receive (or reception) coil arrangements which comprise at least one MR receive coil or coil element or coil system (9) which can be tuned and / or detuned in relation to an MR frequency, and which further comprise a transmission line (7) for electrically connecting the MR receive coil or coil element or coil system (9) with an MR receiver (10). Especially such MR receive coil arrangements are disclosed which are not provided for being stationarily (or permanently) installed or built in an examination zone of an MR imaging or examination system or apparatus (MRI system), like a whole-body coil system of such an MRI system, but which are mobile, like e.g. interventional or invasive devices, like catheters, or surface coils, e.g. in the form of (especially flexible) pads which are positioned on a surface of an examination object for examining a region of interest, or volume coils like birdcage coils for enclosing and examining a volume of interest. Finally, an MR imaging or examination system (MRI system) comprising such an MR receive coil arrangement is disclosed.

Description

technical field [0001] The invention relates to an MR receive coil arrangement (MR receive coil arrangement) comprising at least one MR receive coil or coil element or coil system, in particular capable of tuning the at least one receive coil or coil element or coil system with respect to the MR frequency and detune, and the MR receive coil arrangement further comprises a transmission line for electrically connecting the MR receive coil or coil element or coil system with an MR receiver. The invention relates in particular to MR receiving coil arrangements which are not arranged to be fixedly (or permanently) installed or built into In the examination area of ​​the MRI system, the MR receiving coil arrangement is, by contrast, movable, e.g. it may be an interventional or invasive device such as a catheter, or e.g. using a pad (in particular flexible pads), surface coils for examining a region of interest, or volume coils such as birdcage coils for enclosing and examining a vo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R33/28G01R33/34G01R33/00
CPCG01R33/287G01R33/34046G01R33/3657G01R33/34076G01R33/34084G01R33/36G01R33/0283G01R33/341
Inventor S·魏斯
Owner KONINK PHILIPS ELECTRONICS NV
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