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Investigation of complex phased array coil designs for cardiac imaging

✍ Scribed by Nittka, M

Publisher
Springer
Year
2000
Tongue
English
Weight
862 KB
Volume
10
Category
Article
ISSN
0968-5243

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✦ Synopsis

In this study we present a method to simulate complex phased array coil designs for cardiac imaging. It is based on the combination of numerically calculated B 1 field vectors for each coil of the array and a noise resistance data set, which is acquired only once with a set of test coils. This technique allowed fast assessment of the SNR performance of arbitrary geometries of single coils to be used as building blocks in complex array configurations. In addition, since clinical scanners usually provide only four receiver channels, we used this method to investigate the use of hardware combiners for different array configurations, consisting of up to eight coils. Simulated array geometries resulted in up to :30% gain in SNR for deep cardiac structures, compared to a conventional linear four coil array. This was confirmed by phantom experiments with implemented coils.

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