High-frequency coil device for nuclear spin tomography contrast instrument and nuclear spin tomography contrast instrument

A high-frequency coil and nuclear spin technology is applied in the fields of high-frequency coil devices and nuclear spin tomographs, and can solve the problems of small space factor, inconvenience for medical personnel, and unfavorable signal-to-noise ratio of nuclear resonance examination.

Inactive Publication Date: 2003-01-01
SIEMENS HEALTHCARE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0007] In particular, volume coils have the disadvantage if only local areas of the examination object, in particular the human body, are to be visualized: the signal-to-noise ratio of nuclear resonance examinations is adversely affected due to their smal

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  • High-frequency coil device for nuclear spin tomography contrast instrument and nuclear spin tomography contrast instrument
  • High-frequency coil device for nuclear spin tomography contrast instrument and nuclear spin tomography contrast instrument
  • High-frequency coil device for nuclear spin tomography contrast instrument and nuclear spin tomography contrast instrument

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Embodiment Construction

[0048] figure 1 Shown is a nuclear spin tomography apparatus, denoted as a whole by the reference symbol 1 , with which a region of an object under examination or a patient 3 can be imaged for examination. In the figure, the patient is in the state before the examination begins, and at this moment he is placed flat on a horizontally movable lying platform 5 supported by the support base 7 .

[0049] The nuclear spin tomography instrument 1 has a static magnetic field B for generating 0 The actual inspection is carried out in the opening 11 of the permanent magnet 9 . High-frequency pulses are injected into the body of the patient 3 placed in the opening 11 by means of a transmitting coil which is not clearly shown in the figure. The echo pulses generated by the patient 3 are received by the high-frequency coil device 13 and fed into an analog / digital converter 19 via a preamplifier 15 and an amplifier 17 . figure 1 The connection point 16 shown in is used as a reference p...

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Abstract

High-frequency coil arrangement for a magnetic resonance tomography apparatus and magnetic resonance tomography apparatus employing such an arrangement have a surface coil and a loop coil for enclosing the examination subject. Both coils are fashioned for receiving the same first polarization component. A switching device is present for alternately deactivating and/or activating the surface coil and the loop coil. The two coils are preferably arranged on a common carrier structure that is bendable.

Description

technical field [0001] The invention relates to the technical field of magnetic resonance, in particular to the technical field of imaging nuclear spin tomography. [0002] The invention relates to a high-frequency coil device for examining an examination object, especially a patient, in a nuclear spin tomography apparatus, in particular in an imaging nuclear spin tomography apparatus, which has a A loop coil for the electromagnetic high-frequency signal of the object, the loop coil having at least one turn suitable for surrounding the object under examination. [0003] Furthermore, the invention relates to a nuclear spin tomography apparatus for examining a patient, which has a component for generating a static magnetic field perpendicular to the axis of the patient. Background technique [0004] In a medical, in particular medical diagnostic, spin tomography apparatus, the patient to be examined is usually brought into the examination area lying flat. The strong static m...

Claims

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Application Information

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IPC IPC(8): G01R33/341A61B5/055G01R33/34
CPCG01R33/3664G01R33/341G01R33/34053A61B5/055
Inventor 阿恩·雷科夫斯基
Owner SIEMENS HEALTHCARE GMBH
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