Automatic in-plane rotation for doubly-oblique cardiac imaging.
Automatic in-plane rotation for doubly-oblique cardiac imaging.
复制标题
用于双倾斜心脏成像的自动平面内旋转。
DOI：
10.1002/jmri.10398
复制
发表时间：
2003
期刊：
影响因子：
--
通讯作者：
McVeigh,ElliotR
中科院分区：
文献类型：
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作者：
Kellman,Peter;Derbyshire,JAndrew;McVeigh,ElliotR
PurposeTo develop and test a method for automatically calculating the in‐plane rotation for doubly‐oblique slice geometry in order to minimize wrap artifacts for a given FOV.Materials and MethodsThe equations for in‐plane rotation were formulated for doubly‐oblique imaging of a cylindrical body with elliptical cross‐section. Based on this formulation, automatic in‐plane rotation was implemented and tested on a commercial scanner using nominal values for ellipticity of the body.ResultsShort axis, doubly oblique, cardiac imaging were acquired with and without in‐plane rotation. The desired in‐plane rotation proved to be relatively insensitive to the ellipticity of the body, permitting an automatic solution based on a nominal value.ConclusionIn‐plane rotation is desirable for doubly oblique imaging (e.g., cardiac applications), particularly for reduced‐FOV accelerated imaging such as SENSE. The proposed method, which provides an approximate solution for automatic, in‐plane rotation for doubly‐oblique imaging, was demonstrated. J. Magn. Reson. Imaging 2003;18:612–615. Published 2003 Wiley‐Liss, Inc.
