A chi-square type test for time-invariant fiber pathways of the brain
A chi-square type test for time-invariant fiber pathways of the brain
复制标题
大脑时不变纤维通路的卡方测试
DOI:
10.1007/s11203-022-09268-6
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发表时间:
2022
影响因子:
0.8
通讯作者:
Zhu, David C.
中科院分区:
文献类型:
--
作者:
Goo, Juna;Sakhanenko, Lyudmila;Zhu, David C.
A longitudinal diffusion tensor imaging (DTI) study on a single brain can be remarkably useful to probe white matter fiber connectivity that may or may not be stable over time. We consider a novel testing problem where the null hypothesis states that the trajectories of a coherently oriented fiber population remain the same over a fixed period of time. Compared to other applications that use changes in DTI scalar metrics over time, our test is focused on the partial derivative of the continuous ensemble of fiber trajectories with respect to time. The test statistic is shown to have the limiting chi-square distribution under the null hypothesis. The power of the test is demonstrated using Monte Carlo simulations based on both the theoretical and empirical critical values. The proposed method is applied to a longitudinal DTI study of a normal brain.
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影响因子:
2.9
作者:
Wu,TrevorC;Wilde,ElisabethA;Bigler,ErinD;Li,Xiaoqi;Merkley,TriciaL;Yallampalli,Ragini;McCauley,StephenR;Schnelle,KathleenP;Vasquez,AnaC;Chu,Zili;Hanten,Gerri;Hunter,JillV;Levin,HarveyS
通讯作者:
Levin,HarveyS
影响因子:
0.8
作者:
L. Sakhanenko;M. DeLaura;David C. Zhu
通讯作者:
David C. Zhu
DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
S. Mori;J. Tournier
通讯作者:
J. Tournier
DOI:
--
发表时间:
2016
期刊:
影响因子:
--
作者:
Owen Carmichael;L. Sakhanenko
通讯作者:
L. Sakhanenko
影响因子:
1.1
作者:
Carmichael, Owen;Sakhanenko, Lyudmila
通讯作者:
Sakhanenko, Lyudmila