Test-retest reliability of time-varying patterns of brain activity across single band and multiband resting-state functional magnetic resonance imaging in healthy older adults.
Test-retest reliability of time-varying patterns of brain activity across single band and multiband resting-state functional magnetic resonance imaging in healthy older adults.
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DOI：
10.3389/fnhum.2022.980280
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发表时间：
2022
影响因子：
2.9
通讯作者：
O'Daly, Owen
中科院分区：
文献类型：
--
作者：
Cahart, Marie-Stephanie;Dell'Acqua, Flavio;Giampietro, Vincent;Cabral, Joana;Timmers, Maarten;Streffer, Johannes;Einstein, Steven;Zelaya, Fernando;Williams, Steven C. R.;O'Daly, Owen
关键词：
领先特征向量动力学分析（LEiDA）是一种分析方法，它将功能性磁共振成像（fMRI）记录的大脑活动表征为一系列离散的锁相模式或状态，这些模式或状态随时间推移在所有参与者中不断重现。LEiDA允许提取三个状态相关的措施，这些措施以前是更好地了解健康和临床人群脑动力学的关键：给定状态的发生概率，其寿命和从一种状态切换到另一种状态的概率。与单波段序列相比，MRI多波段（MB）因子的增加可能会影响LEiDA措施的重测信度，但其影响程度尚未确定。在这项研究中，24名健康的老年人在第0周，第1周和第4周进行了三次扫描。在每次访问时，他们接受了传统的单频带静息状态fMRI（rs-fMRI）扫描和三种不同的MB rs-fMRI扫描，MB因子为4，有和没有平面内加速度，6没有平面内加速度。我们发现，重测信度分数显着较高的MB因子4与平面内加速度和不加速度的大多数皮层网络。这些发现将为未来研究和临床试验选择采集参数提供信息。
Leading Eigenvector Dynamics Analysis (LEiDA) is an analytic approach that characterizes brain activity recorded with functional Magnetic Resonance Imaging (fMRI) as a succession of discrete phase-locking patterns, or states, that consistently recur over time across all participants. LEiDA allows for the extraction of three state-related measures which have previously been key to gaining a better understanding of brain dynamics in both healthy and clinical populations: the probability of occurrence of a given state, its lifetime and the probability of switching from one state to another. The degree to which test-retest reliability of the LEiDA measures may be affected by increasing MRI multiband (MB) factors in comparison with single band sequences is yet to be established. In this study, 24 healthy older adults were scanned over three sessions, on weeks 0, 1, and 4. On each visit, they underwent a conventional single band resting-state fMRI (rs-fMRI) scan and three different MB rs-fMRI scans, with MB factors of 4, with and without in-plane acceleration, and 6 without in-plane acceleration. We found test-retest reliability scores to be significantly higher with MB factor 4 with and without in-plane acceleration for most cortical networks. These findings will inform the choice of acquisition parameters for future studies and clinical trials.
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影响因子：
4.8
作者：
Figueroa, Caroline A.;Cabral, Joana;Ruhe, Henricus G.
通讯作者：
Ruhe, Henricus G.
影响因子：
5.7
作者：
Hutchison RM;Womelsdorf T;Allen EA;Bandettini PA;Calhoun VD;Corbetta M;Della Penna S;Duyn JH;Glover GH;Gonzalez-Castillo J;Handwerker DA;Keilholz S;Kiviniemi V;Leopold DA;de Pasquale F;Sporns O;Walter M;Chang C
通讯作者：
Chang C
DOI：
10.1111/j.2517-6161.1995.tb02031.x
发表时间：
1995-01-01
影响因子：
5.8
作者：
BENJAMINI, Y;HOCHBERG, Y
通讯作者：
HOCHBERG, Y
影响因子：
7.6
作者：
Kaiser, Roselinde H.;Whitfield-Gabrieli, Susan;Pizzagalli, Diego A.
通讯作者：
Pizzagalli, Diego A.
影响因子：
1.9
作者：
LANDIS, JR;KOCH, GG
通讯作者：
KOCH, GG