RIDER PHANTOM MRI

The RIDER Phantom MRI data set contains repeat phantom studies. The phantom used for all data acquisitions was a version of the EuroSpin II Test Object 5 as distributed by Diagnostic Sonar, Ltd (Livingston, West Lothian, Scotland). The phantom was comprised of 18 25-mm doped gel filled tubes and 1 20-mm tube containing 0.25 mM GdDTPA. Scanners evaluated: Scanner A – 1.5T GE 8-channel HD with BRM gradient subsystem (33 mT/m amplitude; 120 T/m-s) Scanner B – 1.5T GE 8-channel HD with CRM gradient subsystem (50 mT/m amplitude; 150 T/m-s) Scanner C – 1.5T Siemens Espree (VB13) with 33 mT/m amplitude, 100 T/m-s gradient subsystem Scanner D – 3.0T GE 8-channel HD with TwinSpeed gradients (40 mT/m; 150 T/m-s in zoom mode) For all measurements, an 8-channel phased array head coil was used.

RIDER体模磁共振成像（MRI）数据集包含重复体模扫描实验。本次所有数据采集所使用的体模为Diagnostic Sonar有限公司（苏格兰西洛锡安利文斯顿）发行的EuroSpin II测试体模5号版本。该体模由18根直径25mm的掺杂凝胶填充管，以及1根内含0.25毫摩尔（mM）钆喷酸葡胺（GdDTPA）的20mm直径管组成。本次评估的扫描仪如下：扫描仪A：1.5T场强的GE 8通道HD磁共振扫描仪，搭载BRM梯度系统（梯度幅值33 mT/m，切换率120 T/m·s）；扫描仪B：1.5T场强的GE 8通道HD磁共振扫描仪，搭载CRM梯度系统（梯度幅值50 mT/m，切换率150 T/m·s）；扫描仪C：1.5T场强的Siemens Espree（VB13版本）磁共振扫描仪，梯度系统幅值33 mT/m，切换率100 T/m·s；扫描仪D：3.0T场强的GE 8通道HD磁共振扫描仪，搭载TwinSpeed梯度系统（缩放模式下梯度幅值40 mT/m，切换率150 T/m·s）。所有测量均采用8通道相控阵头部线圈完成。