Magnetic resonance multitasking for multidimensional assessment of cardiovascular system: Development and feasibility study on the thoracic aorta.
Magnetic resonance multitasking for multidimensional assessment of cardiovascular system: Development and feasibility study on the thoracic aorta.
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DOI：
10.1002/mrm.28275
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发表时间：
2020-11
影响因子：
3.3
通讯作者：
Fan Z
中科院分区：
文献类型：
--
作者：
Hu Z;Christodoulou AG;Wang N;Shaw JL;Song SS;Maya MM;Ishimori ML;Forbess LJ;Xiao J;Bi X;Han F;Li D;Fan Z
开发一种基于MR多任务（MT）的心血管系统多维评估（MACS），无需ECG和导航仪数据采集，用于全面评价胸主动脉疾病。MT-MACS采用低秩张量图像模型，心脏时间维度用于相位分辨电影成像，T2准备反转恢复维度用于多对比度评估。研究招募了12名健康受试者和2名胸主动脉疾病患者，在3 T下对所有健康受试者进行了定性（图像质量评分）和定量（管腔与壁之间的对比度噪声比[CNR]、管腔[LA]与壁面积[WA]、主动脉应变指数）分析。基于4分量表对整体图像质量进行评分：3-优，2-良，1-一般和0-差。使用统计分析来检验MT-MACS与其相应的2D参考之间的测量一致性。从短至6分钟的采集重建的MT-MACS图像分别显示了亮血（2.58±0.46）、暗血（2.58±0.50）和灰血（2.17±0.53）对比度加权的良好或极佳图像质量。三种权重的CNR分别为49.2±12.8、20.0±5.8和2.8±1.8。MT-MACS与常规2D序列在管腔和管壁面积（LA组内相关系数[ICC]=0.993，P<0.001; WA组内相关系数[ICC]=0.969，P<0.001）和应变（ICC=0.947，P<0.001）方面具有良好的一致性。MT-MACS为胸主动脉的全面评估提供了高质量的多维图像。在健康受试者和胸主动脉疾病患者中证明了技术可行性。需要进一步的临床验证。
To develop an MR MultiTasking (MT) based Multi-dimensional Assessment of Cardiovascular System (MACS) with ECG- and navigator-free data acquisition for a comprehensive evaluation of thoracic aortic diseases. MT-MACS adopts a low-rank tensor image model with a cardiac time dimension for phase-resolved cine imaging and a T2-prepared inversion recovery dimension for multi-contrast assessment. Twelve healthy subjects and two patients with thoracic aortic diseases were recruited for the study at 3T, and both qualitative (image quality score) and quantitative (contrast-to-noise ratio [CNR] between lumen and wall, lumen [LA] and wall area [WA], aortic strain index) analyses were performed in all healthy subjects. The overall image quality was scored based on a 4-point scale: 3-excellent, 2-good, 1-fair and 0-poor. Statistical analysis was used to test the measurement agreement between MT-MACS and their corresponding 2D references. MT-MACS images reconstructed from acquisitions as short as 6 minutes demonstrated good or excellent image quality for bright-blood (2.58±0.46), dark-blood (2.58±0.50) and gray-blood (2.17±0.53) contrast weightings, respectively. The CNRs for the three weightings were 49.2±12.8, 20.0±5.8 and 2.8±1.8, respectively. There were good agreements in the lumen and wall area (intraclass correlation coefficient [ICC]=0.993, P<0.001 for LA; ICC=0.969, P<0.001 for WA) and strain (ICC=0.947, P<0.001) between MT-MACS and conventional 2D sequences. MT-MACS provides high-quality, multi-dimensional images for a comprehensive assessment of the thoracic aorta. Technical feasibility was demonstrated in healthy subjects and patients with thoracic aortic diseases. Further clinical validation is warranted.
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影响因子：
4.4
作者：
Potthast, Silke;Mitsumori, Lee;Maki, Jeffrey H.
通讯作者：
Maki, Jeffrey H.
DOI：
10.1016/s0894-7317(96)90104-2
发表时间：
1996-01-01
期刊：
Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography
影响因子：
--
作者：
Katz, E S;Konecky, N;Kronzon, I
通讯作者：
Kronzon, I
影响因子：
2.3
作者：
Godia, Elisa Cuadrado;Madhok, Rishi;Rundek, Tatjana
通讯作者：
Rundek, Tatjana
影响因子：
2.4
作者：
Francois, Christopher J.;Carr, James C.
通讯作者：
Carr, James C.
影响因子：
28.1
作者：
Christodoulou AG;Shaw JL;Nguyen C;Yang Q;Xie Y;Wang N;Li D
通讯作者：
Li D