High spatial resolution whole-neck MR angiography using thin-slab stack-of-stars quiescent interval slice-selective acquisition.
High spatial resolution whole-neck MR angiography using thin-slab stack-of-stars quiescent interval slice-selective acquisition.
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DOI：
10.1002/mrm.28339
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发表时间：
2020-12
影响因子：
3.3
通讯作者：
Edelman RR
中科院分区：
文献类型：
--
作者：
Koktzoglou I;Huang R;Ong AL;Aouad PJ;Walker MT;Edelman RR
旨在报告一种用于在7分钟内对整个颈部进行高分辨率磁共振血管造影（MRA）的3D多回波薄层星状堆叠（tsSOS）静止间隔切片选择性（QISS）策略。8名受试者的颈部动脉在3特斯拉下成像。使用FLASH读数的多回波3D tsSOS QISS与3D tsSOS FLASH、2D QISS、2D TOF和3D TOF进行了比较。测试了回波时间图像的均方根（RMS）组合。评价指标包括动脉信噪比（SNR）、动脉-肌肉对比度噪声比（CNR）和图像质量。使用回波时间图像的RMS组合的3D多回波tsSOS QISS相对于使用最短回波时间获得的重建将SNR和CNR提高了60%和63%。3D tsSOS QISS显示出优于3D tsSOS FLASH成像的上级CNR，并且当针对体素尺寸进行标准化时，SNR和CNR是2D径向QISS的3倍以上。3D tsSOS QISS提供的图像质量为良好至极好，超过2D QISS、2D TOF和3D TOF的图像质量（P<0.05）。使用3D tsSOS QISS进行全颈高分辨率非增强MRA是可行的，并且在3特斯拉下产生的图像质量超过了竞争性非增强MRA协议。
To report a 3D multi-echo thin-slab stack-of-stars (tsSOS) quiescent-interval slice-selective (QISS) strategy for high-resolution magnetic resonance angiography (MRA) of the entire neck in under seven minutes. The neck arteries of 8 subjects were imaged at 3 Tesla. Multi-echo 3D tsSOS QISS using a FLASH readout was compared with 3D tsSOS FLASH, 2D QISS, 2D TOF, and 3D TOF. A root-mean-square (RMS) combination of echo time images was tested. Evaluation metrics included arterial signal-to-noise ratio (SNR), arterial-to-muscle contrast-to-noise ratio (CNR), and image quality. 3D multi-echo tsSOS QISS using a RMS combination of echo time images increased SNR and CNR by 60% and 63% with respect to the reconstruction obtained with the shortest echo time. 3D tsSOS QISS showed superior CNR with respect to 3D tsSOS FLASH imaging, and more than 3-fold higher SNR and CNR with respect to 2D radial QISS when normalized for voxel size. 3D tsSOS QISS provided good to excellent image quality that exceeded the image quality of 2D QISS, 2D TOF, and 3D TOF (P<0.05). Whole-neck high-resolution nonenhanced MRA is feasible using 3D tsSOS QISS, and produced image quality that exceeded those of competing nonenhanced MRA protocols at 3 Tesla.
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影响因子：
3.3
作者：
PARKER, DL;YUAN, C;BLATTER, DD
通讯作者：
BLATTER, DD
影响因子：
5.9
作者：
Nitz, WR
通讯作者：
Nitz, WR
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作者：
Murata, Nozomu;Gonzalez-Cuyar, Luis F.;Maravilla, Kenneth R.
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影响因子：
4.4
作者：
Koktzoglou, Ioannis;Aherne, Emily A.;Edelman, Robert R.
通讯作者：
Edelman, Robert R.
影响因子：
3.3
作者：
Koktzoglou, Ioannis;Edelman, Robert R.
通讯作者：
Edelman, Robert R.