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Router and coil array for ultra high field MRI

A coil element and magnetic field technology, applied in the field of magnetic resonance imaging, can solve the problems of interrupting workflow and increasing imaging time, and achieve the effect of improving uniformity, improving workflow, and improving image uniformity

Active Publication Date: 2013-03-20
KONINKLIJKE PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During ultra-high field imaging procedures, the use of multiple transmit and receive (T / R) coils at multiple locations requires the operator to manually disconnect and reconnect the connections between each surface coil and each amplifier, which increases the Imaging time and interrupted workflow

Method used

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  • Router and coil array for ultra high field MRI
  • Router and coil array for ultra high field MRI
  • Router and coil array for ultra high field MRI

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Embodiment Construction

[0018] refer to figure 1 , a magnetic resonance (MR) imaging system 10 includes a main magnet 12 that generates a spatially and temporally uniform B across an examination region 14 0 field. The main magnet can be a ring or hole type magnet, a C-shaped open magnet, open magnets of other designs, and the like. The gradient magnetic field coil 16 arranged near the main magnet is used to move along the 0 Selected axes of the magnetic field generate magnetic field gradients to spatially encode the magnetic resonance signal, generate magnetization perturbation field gradients, and the like. Magnetic field gradient coils 16 may include coil segments configured to generate magnetic field gradients in three orthogonal directions, typically a longitudinal or z direction, a transverse or x direction, and a vertical or y direction.

[0019] System 10 includes a plurality of radio frequency (RF) coil assemblies 18 disposed in or adjacent to examination region 14 . Although shown below ...

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Abstract

A router (60), for use with magnetic resonance systems (10), selectively routes unique excitation signals, generated by a multi-channel radio-frequency (RF) amplifier,over transmission lines (Tx) to any one of a plurality of connection panels (66) which each accepts at least one RF coil assembly having multiple coil elements (20). Each connection panel (66) includes transceiver ports (68) for connecting at least one conductor (22,24) of the coil elements(20) to a corresponding transceiver channel (T / R). The router (60) selectively routes magnetic resonance signals received by the conductors (22,24) from the transceiver channels (T / R) to a multi-channel RF receiver (41).

Description

technical field [0001] This application relates to the field of magnetic resonance. The present application is particularly applicable to magnetic resonance imaging of very high fields, for example 3 Tesla (Tesla) and higher, such as 7 Tesla and 9.4 Tesla. However, the following applies more generally to magnetic resonance imaging and magnetic resonance spectroscopy, among others. Background technique [0002] Magnetic resonance imaging (MRI) and spectroscopy (MRS) systems are commonly used in the examination and treatment of patients. With such a system, the nuclear spins of the body tissue to be examined are controlled by the static main magnetic field B 0 aligned, and by a transverse magnetic field B oscillating in the radio frequency band 1 excitation. In imaging, the relaxation signal is exposed to a gradient magnetic field to localize the nuclear spins. The relaxation signal is received to form a single-dimensional or multi-dimensional image in a known manner. In...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R33/3415G01R33/36G01R33/561
CPCG01R33/5612G01R33/3642G01R33/3607G01R33/3678G01R33/3621G01R33/3415
Inventor M·A·莫里希Z·翟K·M·尼曼E·Y·P·王N·马利克
Owner KONINKLIJKE PHILIPS ELECTRONICS NV