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MRI apparatus, flow quantification apparatus, and flow quantification method for ASL imaging

机译:用于ASL成像的MRI设备,流量定量设备和流量定量方法

摘要

An MRI apparatus is provided to quantify perfusion (microcirculatory blood flow in the tissue) in a region to be imaged in a subject based an ASL (arterial spin labeling) technique. The apparatus comprises imaging, storing, and flow quantifying units. The imaging unit performs a scan according to the ASL technique on the region so that image data is acquired from the region. The storing unit stores relationship information between a concentration of tracer (water) and a flow of the perfusion. The relationship is obtained on a two-compartment model that uses two compartments placed inside and outside of a flow of blood that diffuses into the tissue of the region and that considers temporal changes in the diffusion of the microcirculatory blood flow into the tissue. The flow quantifying unit quantifies the flow of the perfusion by applying an amount derived from the image data to the relationship information.
机译:提供了一种MRI设备,以基于ASL(动脉自旋标记)技术来量化要在对象中成像的区域中的灌注(组织中的微循环血流)。该设备包括成像,存储和流量量化单元。成像单元根据ASL技术在该区域上执行扫描,从而从该区域获取图像数据。存储单元存储示踪剂(水)的浓度与灌注的流量之间的关系信息。该关系是在两室模型中获得的,该模型使用放置在扩散到该区域组织内的血流内部和外部的两个室,并考虑微循环血流向组织内扩散的时间变化。流量量化单元通过将从图像数据导出的量应用于关系信息来量化灌注的流量。

著录项

  • 公开/公告号US2004030240A1

    专利类型

  • 公开/公告日2004-02-12

    原文格式PDF

  • 申请/专利权人 KIMURA TOKUNORI;

    申请/专利号US20030435682

  • 发明设计人 TOKUNORI KIMURA;

    申请日2003-05-12

  • 分类号A61B5/055;G01V3/00;

  • 国家 US

  • 入库时间 2022-08-21 23:16:42

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