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Magnetic particle imaging apparatus, method of disposing detection coil for magnetic particle imaging apparatus, and magnetic flux detecting apparatus

一种磁性微粒子、检测线圈的技术，应用在诊断记录/测量、医药科学、手术等方向，能够解决难以取得检测灵敏度等问题

Active Publication Date: 2008-12-17
TOSHIBA MEDICAL SYST CORP
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  • Abstract
  • Description
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Problems solved by technology

[0012] However, assuming clinical application, as described above, the magnitude of the voltage induced by the modulated magnetic field is much larger than the voltage induced by the magnetization of magnetic fine particles, so it is difficult to obtain sufficient detection sensitivity even with this method.

Method used

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  • Magnetic particle imaging apparatus, method of disposing detection coil for magnetic particle imaging apparatus, and magnetic flux detecting apparatus
  • Magnetic particle imaging apparatus, method of disposing detection coil for magnetic particle imaging apparatus, and magnetic flux detecting apparatus
  • Magnetic particle imaging apparatus, method of disposing detection coil for magnetic particle imaging apparatus, and magnetic flux detecting apparatus

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Embodiment Construction

[0033] Preferred embodiments of the magnetic particle imaging device, detection coil arrangement method, and magnetic flux detection device of the present invention will be described in detail below with reference to the accompanying drawings.

[0034] figure 1 It is a perspective view showing the structure of the magnetic microparticle imaging apparatus of the first embodiment. As shown in the figure, this magnetic particle imaging device 10 has a frame (frame) 11, a top plate 12, permanent magnets 13a and 13b, zero magnetic field scanning coils (scan coils) 14a to 14h, modulation coils 15a and 15b, detection coils 16a and 16b. An image processing component 30 .

[0035] Frame 11 is a U-shaped member, and supports permanent magnets 13a and 13b, zero magnetic field scanning coils 14a to 14h, modulation coils 15a and 15b, and detection coils 16a and 16b, respectively.

[0036] The top plate 12 is a plate-like member provided substantially in the center of the area surrounded...

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Abstract

In a magnetic particle imaging apparatus that forms an image of a distribution of magnetic particles based on changes in a magnetic flux generated by magnetization of the magnetic particles, modulation coils that magnetize magnetic particles present in a field free area by applying a modulation magnetic field to the field free area, and detection coils are disposed such as to suppress an influence caused by a magnetic flux of the modulation magnetic field applied by the modulation coils and included in a detected magnetic flux.

Description

[0001] This application benefits from the priority of Japanese Patent Application No. 2007-158546 filed on Jun. 15, 2007, and uses all the contents of this Japanese Patent Application in this application. technical field [0002] The present invention relates to a magnetic microparticle imaging device that images the distribution of magnetic microparticles based on a change in magnetic flux due to magnetization of the magnetic microparticles, and a detection coil arrangement method and magnetic flux of the magnetic microparticle imaging device. A detection device, in particular, relates to a technique for improving the detection sensitivity of a detection coil. Background technique [0003] In recent years, it has been proposed to inject magnetic microparticles such as supermagnetic iron oxide into the body of the subject as a contrast agent, and to image the distribution of the contrast agent (for example, refer to Japanese Patent Application Laid-Open No. 2003-199767, or B...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/05A61B19/00
CPCA61B5/05A61B5/0515
Inventor 大汤重治原头基司樱井康雄
Owner TOSHIBA MEDICAL SYST CORP
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