Details

Autor(en) / Beteiligte

• Nittka, M
• Haase, A

Titel

Investigation of complex phased array coil designs for cardiac imaging

Ist Teil von

• Magma (New York, N.Y.), 2000-06, Vol.10 (2), p.122-130

Ort / Verlag

Germany

Erscheinungsjahr

2000

Quelle

SpringerLink

Beschreibungen/Notizen

• 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 approximately 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.