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Application of quantitative magnetic susceptibility weighted imaging in acute ischemic stroke
LI Dan  WANG Xiao-chun 

DOI:10.12015/issn.1674-8034.2018.04.009.


[Abstract] Susceptibility weighted imaging (SWI) is an imaging technology by using the difference of tissue magnetic susceptibility, which is very sensitive to anoxic blood and intracranial mineral deposition. It has been widely used in the diagnosis of acute ischemic stroke. However, SWI can not be used for quantitative determination of magnetic susceptibility. With the development of quantitative susceptibility mapping (QSM), this defect is gradually being made up. QSM is a new, non-invasive technique for assessing magnetic susceptibility differences between magnetic tissues in vivo based on magnetic gradient echo magnetic resonance phase data. It realizes the quantification of magnetic substances in the body by measuring the susceptibility value of the magnetic substances. Currently, it has a variety of applications in quantifying iron content, calcification and venous oxygen saturation in vivo. In this paper, the basic principle of quantitative magnetic susceptibility weighted imaging and its application in acute ischemic stroke are summarized.
[Keywords] Stroke；Susceptibility weighted imaging；Magnetic resonance imaging；Quantitative susceptibility mapping

LI Dan Shanxi Medical University, Taiyuan 030000, China

WANG Xiao-chun* Department of Radiology, the First Hospital of Shanxi Medical University, Taiyuan 030001, China

*Corresponding to: Wang XC, E-mail: 13466815941@163.com

Conflicts of interest   None.

Received  2017-09-06
Accepted  2017-12-08
DOI: 10.12015/issn.1674-8034.2018.04.009
DOI:10.12015/issn.1674-8034.2018.04.009.

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