What is the optimum phased array coil design for cardiac and torso magnetic resonance?

1997 ◽  
Vol 37 (4) ◽  
pp. 591-599 ◽  
Author(s):  
Paul A. Bottomley ◽  
Carlos H. Lugo Olivieri ◽  
Randy Giaquinto
2006 ◽  
Vol 16 (2) ◽  
pp. 120-124
Author(s):  
Song Xiaoyu ◽  
Zhang Hongjie ◽  
Wang Le ◽  
Bao Shanglian ◽  
Sun Yanrong ◽  
...  

Author(s):  
Daniele De Marchi ◽  
Alessandra Flori ◽  
Nicola Martini ◽  
Giulio Giovannetti

Background: Cardiac magnetic resonance evaluations generally require a radiofrequency coil setup comprising a transmit whole-body coil and a receive coil. In particular, radiofrequency phased-array coils are employed to pick up the signals emitted by the nuclei with high signal-tonoise ratio and a large region of sensitivity. Methods: Literature discussed different technical issues on how to minimize interactions between array elements and how to combine data from such elements to yield optimum Signal-to-Noise Ratio images. However, image quality strongly depends upon the correct coil position over the heart and of one array coil portion with respect to the other. Results: In particular, simple errors in coil positioning could cause artifacts carrying to an inaccurate interpretation of cardiac magnetic resonance images. Conclusion: This paper describes the effect of array elements misalignment, starting from coil simulation to cardiac magnetic resonance acquisitions with a 1.5 T scanner. </P><P> Phased-array coil simulation was performed using the magnetostatic approach; moreover, phantom and in vivo experiments with a commercial 8-elements cardiac phased-array receiver coil permitted to estimate signal-to-noise ratio and B1 mapping for aligned and shifted coil.


2004 ◽  
Vol 20 (3) ◽  
pp. 417-425 ◽  
Author(s):  
Tim Leiner ◽  
Robbert J. Nijenhuis ◽  
Jeffrey H. Maki ◽  
Etienne Lemaire ◽  
Romhild Hoogeveen ◽  
...  

1997 ◽  
Vol 84 (4) ◽  
pp. 529-531 ◽  
Author(s):  
M. B. Hadfield ◽  
A. A. Nicholson ◽  
A. W. MacDonald ◽  
R. Farouk ◽  
P. W. R. Lee ◽  
...  

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