MGH–USC Human Connectome Project datasets with ultra-high b-value diffusion MRI

人类连接体项目 磁共振弥散成像 计算机科学 纤维束成像 连接体 神经信息学 扫描仪 部分各向异性 扩散 扩散成像 预处理器 磁共振成像 人工智能 神经科学 物理 医学 数据科学 心理学 放射科 功能连接 热力学
作者
Qiuyun Fan,Thomas Witzel,Aapo Nummenmaa,Koene R. A. Van Dijk,John D. Van Horn,Monika Drews,Leah H. Somerville,Margaret A. Sheridan,Rosario M. Santillana,Jenna Snyder,Trey Hedden,Emily Shaw,Marisa O. Hollinshead,Ville Renvall,Roberta Zanzonico,Boris Keil,Stephen F. Cauley,Jonathan R. Polimeni,M. Dylan Tisdall,Randy L. Buckner,Van J. Wedeen,Lawrence L. Wald,Arthur W. Toga,Bruce R. Rosen
出处
期刊:NeuroImage [Elsevier BV]
卷期号:124: 1108-1114 被引量:221
标识
DOI:10.1016/j.neuroimage.2015.08.075
摘要

The MGH–USC CONNECTOM MRI scanner housed at the Massachusetts General Hospital (MGH) is a major hardware innovation of the Human Connectome Project (HCP). The 3T CONNECTOM scanner is capable of producing a magnetic field gradient of up to 300 mT/m strength for in vivo human brain imaging, which greatly shortens the time spent on diffusion encoding, and decreases the signal loss due to T2 decay. To demonstrate the capability of the novel gradient system, data of healthy adult participants were acquired for this MGH–USC Adult Diffusion Dataset (N = 35), minimally preprocessed, and shared through the Laboratory of Neuro Imaging Image Data Archive (LONI IDA) and the WU–Minn Connectome Database (ConnectomeDB). Another purpose of sharing the data is to facilitate methodological studies of diffusion MRI (dMRI) analyses utilizing high diffusion contrast, which perhaps is not easily feasible with standard MR gradient system. In addition, acquisition of the MGH–Harvard–USC Lifespan Dataset is currently underway to include 120 healthy participants ranging from 8 to 90 years old, which will also be shared through LONI IDA and ConnectomeDB. Here we describe the efforts of the MGH–USC HCP consortium in acquiring and sharing the ultra-high b-value diffusion MRI data and provide a report on data preprocessing and access. We conclude with a demonstration of the example data, along with results of standard diffusion analyses, including q-ball Orientation Distribution Function (ODF) reconstruction and tractography.
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