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    • 1. 发明申请
    • COLON SCREENING BY USING MAGNETIC PARTICLE IMAGING
    • 使用磁性粒子成像进行彩色扫描
    • WO2012063186A1
    • 2012-05-18
    • PCT/IB2011/054953
    • 2011-11-07
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBHBORGERT, JörnSCHMALE, IngoRAHMER, Jürgen ErwinGLEICH, BernhardKUHN, Michael Harald
    • BORGERT, JörnSCHMALE, IngoRAHMER, Jürgen ErwinGLEICH, BernhardKUHN, Michael Harald
    • A61K49/18A61B5/05
    • A61B5/0515A61B5/05A61K49/1818
    • The present invention relates to a method for colon screening by using Magnetic Particle Imaging comprising the steps of: (a) generating an imaging magnetic field with a spatial distribution of the magnetic field strength such that the area of examination in the colon consists of a first sub-area of the colon with lower magnetic field strength, where the magnetization of a magnetic particle which was pre-delivered to the colon is not saturated, and a second sub-area of the colon with a higher magnetic field strength, where the magnetization of said magnetic particle is saturated;(b) changing the spatial location of both sub-areas in the area of examination so that the magnetization of said particles changes locally; (c) acquiring signals that depend on the magnetization in the area of examination influenced by this change; and (d) evaluating said signals to obtain information about the spatial distribution of the signals in the area of examination. The area of examination in the colon preferably comprises a portion or segment of the colon and steps (a) to (c) may be carried out during an entire peristaltic cycle in said colon portion or segment. The present invention further relates to a corresponding method for collecting data, the use of a magnetic particle for colon screening via Magnetic Particle Imaging, a food stuff or liquid for in vivo diagnostic use comprising a magnetic particle, and a method for preparing a patient for colon screening by using Magnetic Particle Imaging.
    • 本发明涉及一种通过使用磁性粒子成像进行结肠筛查的方法,包括以下步骤:(a)产生具有磁场强度的空间分布的成像磁场,使得冒号中的检查区域由第一 具有较低磁场强度的结肠的子区域,其中预先输送到结肠的磁性颗粒的磁化不饱和,以及具有较高磁场强度的结肠的第二子区域,其中磁化强度 的所述磁性颗粒饱和;(b)改变检查区域中两个子区域的空间位置,使得所述颗粒的磁化在局部变化; (c)获取取决于受该变化影响的检查区域的磁化强度的信号; 和(d)评估所述信号以获得关于检查区域中的信号的空间分布的信息。 结肠检查的区域优选包含结肠的一部分或部分,并且步骤(a)至(c)可以在结肠部分或段中的整个蠕动循环期间进行。 本发明还涉及用于收集数据的相应方法,通过磁性粒子成像进行结肠筛选的磁性颗粒的使用,用于包括磁性颗粒的体内诊断用途的食物或液体,以及用于制备患者的方法 使用磁粉成像进行结肠筛查。