发明名称 |
METHOD AND APPARATUS FOR THE MEASUREMENT, CHARACTERIZATION AND CORRECTION OF GEOMETRIC DISTORTIONS IN MAGNETIC RESONANCE IMAGING |
摘要 |
Various embodiments are described herein for an apparatus and a method for measuring and characterizing geometric distortions for a region of interest in images obtained using magnetic resonance. The method comprises deriving a computed set of 3D distortion vectors for a set of points within a region of interest covered by a phantom by using harmonic analysis to solve an associated boundary value problem based on boundary conditions derived from a measured set of 3D distortion vectors. The characterized image distortions may be used for various purposes such as for image correction or for shimming, for example. |
申请公布号 |
CA2846719(A1) |
申请公布日期 |
2014.09.15 |
申请号 |
CA20142846719 |
申请日期 |
2014.03.14 |
申请人 |
UNIVERSITY HEALTH NETWORK |
发明人 |
TADIC, TONY;STANESCU, TEODOR MARIUS |
分类号 |
G01R33/565;G01R33/3875 |
主分类号 |
G01R33/565 |
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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