发明名称 |
METHOD OF REDUCING MR IMAGE ARTEFACTS IN OFF-CENTRE IMAGES, AND DEVICE FOR PERFORMING THE METHOD |
摘要 |
<p>Method of reducing MR image artefacts in off-centre images, and device for performing the method. A method is proposed for the elimination of the effect of coherent interference signals which give rise to image artefacts in offcentre imaging which usually requires roll correction in order to obtain a correct image. To this end, the image is shifted independently with respect to the artefact signal over an arbitrary distance which depends on the isocentric shift. The method is advantageous for offcentre imaging where usually surface coils are used. A band of interference signals in the phase encoding direction can thus be shifted to the edge of the image.</p> |
申请公布号 |
CA1256165(A) |
申请公布日期 |
1989.06.20 |
申请号 |
CA19870542090 |
申请日期 |
1987.07.13 |
申请人 |
N.V.PHILIPS'GLOEILAMPENFABRIEKEN |
发明人 |
VAN DER MEULEN, PETER;VAN LIERE, FILIPS |
分类号 |
A61B5/055;G01R33/48;G01R33/54;G01R33/565;(IPC1-7):G01N24/08 |
主分类号 |
A61B5/055 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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