Partial Fourier MRI: AR models with SVD

机译：部分傅立叶MRI：具有SVD的AR模型

获取原文

页面导航

摘要
著录项
相似文献
相关主题

摘要

We investigated several partial Fourier imaging techniques to reconstruct magnetic resonance images from the central fifty percent phase encodings. Parametric models were chosen and compared for accuracy in predicting the full time-domain data, and for final image quality. The auto-regressive model, with parameter estimation from Single Value Decomposition (AR-SVD) was compared against the iterative Levinson-Durbin approach, and against auto-regressive moving-average models suggested by Marple and Smith. Suitable MR images from a phantom were obtained for testing the models. AR-SVD reconstruction most closely matched the full image intensity function, giving the lowest MSE, especially with gradient-echo and fast spin echo images, thus demonstrating superior tolerance to noise, at the cost of increased computing load.

机译：我们研究了几种部分傅立叶成像技术来重建来自中央阶段编码的磁共振图像。选择参数模型并进行比较，以准确地预测全时域数据，以及用于最终图像质量。与单值分解（AR-SVD）的具有参数估计的自动回归模型与迭代Levinson-Durbin方法进行比较，并针对Marple和Smith建议的自动回归移动平均模型。获得来自幻像的合适的MR图像以测试模型。 AR-SVD重建最接近匹配全部图像强度函数，给出最低的MSE，特别是梯度回波和快速旋转回波图像，从而以提高计算负荷的成本展示了卓越的噪声容差。

著录项

来源
《IEEE Nuclear Science Symposium》|2000年||共4页
会议地点
作者
R. W. McColl; M. A. Scarlata;
展开▼
作者单位

展开▼
会议组织
原文格式 PDF
正文语种
中图分类 TL-53;
关键词

相似文献

外文文献
中文文献
专利

1. On the design of filters for fourier and oSVD-based deconvolution in bolus tracking perfusion MMRI [J] . Peter G., Emerich P., Kj? B.F., Magma: Magnetic resonance materials in physics, biology, and medicine . 2010,第3期

机译：团注跟踪灌注MMRI中基于傅里叶和基于oSVD的反卷积的滤波器设计
2. On the design of filters for fourier and oSVD-based deconvolution in bolus tracking perfusion MRI [J] . Peter Gall, Philipp Emerich, Birgitte F. Kjølby, Magnetic Resonance Materials in Physics, Biology and Medicine . 2010,第3期

机译：团注跟踪MRI中基于傅里叶和基于oSVD的反卷积的滤波器设计
3. Threshold bounds in SVD and a new iterative algorithm for order selection in AR models [J] . Konstantinides K. IEEE Transactions on Signal Processing . 1991,第5期

机译：SVD中的阈值界限和AR模型中用于订单选择的新迭代算法
4. Partial Fourier MRI: AR models with SVD [C] . R. W. McColl, M. A. Scarlata IEEE Nuclear Science Symposium . 2000

机译：部分傅立叶MRI：具有SVD的AR模型
5. Skin Dose in Longitudinal and Transverse Linac-MRIs using Monte-Carlo and realistic 3D MRI field models [D] . Keyvanloo Shahrestanaky, Amirmohamad 2013

机译：纵向和横向直线加速磁共振成像中的皮肤剂量（使用蒙特卡洛和逼真的3D MRI现场模型）
6. Evaluation of human breastmilk adulteration by combining Fourier transform infrared spectroscopy and partial least square modeling [O] . Michele De Luca, Giuseppina Ioele, Claudia Spatari, 2019

机译：傅里叶变换红外光谱和偏最小二乘建模相结合对人乳掺假的评估
7. On an integral formula of Berndtsson related to the inversion of the Fourier-Laplace transform of ar{partial }-closed (n,n-1)-forms [O] . Telemachos Hatziafratis 2004

机译：Berndtsson与$ bar { partial} $ - 闭合$（n，n-1）$ - 形式的Fourier-Laplace变换求逆的积分公式

Partial Fourier MRI: AR models with SVD

摘要

著录项

相似文献

相关主题

期刊订阅