Title:
磁気共鳴イメージング装置および磁化率強調画像生成方法
Document Type and Number:
Japanese Patent JP5843876
Kind Code:
B2
Abstract:
There is provided a technique for obtaining a magnetic susceptibility-weighted image in which contrast difference of a tissue of interest and a surrounding tissue can be emphasized regardless of the positional relationship of the B0 direction and the imaging slice. A phase image is converted into a susceptibility map not depending on the B0 direction, and then a weighting image used for weighting is generated by using the susceptibility map. The weighting image to be generated is for emphasizing contrast of a tissue of interest and a surrounding tissue depending on the purpose. Then, by multiplication of the weighting image and an absolute image, a magnetic susceptibility-weighted image in which the magnetic susceptibility difference is emphasized depending on the purpose is obtained.
Inventors:
Ryota Sato
White boar
Yo Taniguchi
May woman Etsuhisa
Yoshitaka Bito
White boar
Yo Taniguchi
May woman Etsuhisa
Yoshitaka Bito
Application Number:
JP2013538512A
Publication Date:
January 13, 2016
Filing Date:
October 03, 2012
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
A61B5/055
Foreign References:
| US20090261824 |
Other References:
A. Deistung,Calculation of the Magnetic Susceptibilityfrom Susceptibility Weighted Phase Images,Proc. Intl. Soc. Mag.Reson. Med.,2009年 5月17日
J. Neelavalli,A Fast and Robust Method for QuantifyingMagnetic Susceptibility of Arbitrarily Shaped Objects Using MR,Proc. Intl. Soc. Mag. Reson. Med.,2008年 5月16日
E. M. Haacke,Susceptibility Weighted Imaging andSusceptibility Mapping (SWIM): A New Means to Visualize Veinsand Quantify Susceptibility,Proc. Intl. Soc. Mag. Reson. Med.,2010年 5月18日
F. M. Martinez Santiesteban,Object orientationindependence of Susceptibility Weighted Imaging by using aSigmoid-type phase window,Proc. Intl. Soc. Mag. Reson. Med.,2006年 5月14日
J. Neelavalli,A Fast and Robust Method for QuantifyingMagnetic Susceptibility of Arbitrarily Shaped Objects Using MR,Proc. Intl. Soc. Mag. Reson. Med.,2008年 5月16日
E. M. Haacke,Susceptibility Weighted Imaging andSusceptibility Mapping (SWIM): A New Means to Visualize Veinsand Quantify Susceptibility,Proc. Intl. Soc. Mag. Reson. Med.,2010年 5月18日
F. M. Martinez Santiesteban,Object orientationindependence of Susceptibility Weighted Imaging by using aSigmoid-type phase window,Proc. Intl. Soc. Mag. Reson. Med.,2006年 5月14日
Attorney, Agent or Firm:
Patent Business Corporation Sannozaka Patent Office
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