期刊
MAGNETIC RESONANCE IN MEDICINE
卷 55, 期 5, 页码 1142-1149出版社
JOHN WILEY & SONS INC
DOI: 10.1002/mrm.20870
关键词
MRI receiver coil arrays; parallel MRI; cardiovascular MRI; multichannel MRI; 32 channels
资金
- NCRR NIH HHS [R01 RR015396, R01 RR15396] Funding Source: Medline
- NIBIB NIH HHS [R01 EB002568] Funding Source: Medline
A lightweight 32-element MRI receiver-coil array was designed and built for cardiac imaging. It comprises an anterior array of 21 copper rings (75 mm diameter) and a posterior array of 11 rings (107 mm diameter) that are arranged in hexagonal lattices so as to decouple nearest neighbors, and curved around the left side of the torso. Imaging experiments on phantoms and human volunteers show that it yields superior performance relative to an eight-element cardiac array as well as a 32-element whole-torso array for both traditional nonaccelerated cardiac imaging and 3D parallel imaging with acceleration factors as high as 16.
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