Estimation of Fiber Orientation by Filtered Q-ball Imaging

被引：0

作者：

Cho, Kuan-Hung ^{[1
]}

Yeh, Chun-Hung ^{[1
]}

Kuo, Li-Wei ^{[2
]}

Chao, Yi-Ping ^{[3
]}

Lin, Ching-Po ^{[1
]}

机构：

[1] Natl Yang Ming Univ, Inst Neurosci, Taipei 112, Taiwan

[2] Natl Hlth Res Inst, Div Med Engn Res, Taiwa, Mialo, Japan

[3] Chang Gung Univ, Dept Comp Sci & Informat Engn, Taoyuan, Taiwan

来源：

2013 35TH ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY (EMBC) | 2013年

关键词：

SPHERICAL DECONVOLUTION; ANGULAR RESOLUTION; FIELD GRADIENT; WHITE-MATTER; SPIN ECHOES; DIFFUSION; BRAIN; MRI;

D O I：

暂无

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

We proposed a filtered q-ball imaging (fQBI) method for the reconstruction of fiber orientation distribution function (ODF) together with the quantitative comparison to unfiltered QBI. The filter kernel increases the high angular frequency content that is beneficial for the angular resolution in resolving crossing fibers. Through a series of simulations using Monte-Carlo model, the angular resolution of fQBI was demonstrated better than traditional QBI but the deviation of fiber orientation estimate also becomes larger. The improvement of the angular resolution can also reduce the underestimation of separation angles as well as the bias of fiber orientation estimations. In conclusion, fQBI was demonstrated to improve the angular resolution of QBI in resolving crossing fibers. This improvement will be helpful to precisely reconstruct fiber tract and brain network in applications by QBI.

引用

页码：519 / 522

页数：4

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