Multiple channel phased arrays for echo planar imaging

Gary X. Shen1,2, Jiangfeng Wu3, Fernando E. Boada2
1Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong, Hong Kong
2MR Research Center, Department of Radiology, University of Pittsburgh Medical Center, Pittsburgh, USA
3Department of Electrical and Computer Engineering, Carnegia-Mellon University, Pittsburgh, USA

Tóm tắt

A new interface combining phased arrays and echo-planar imaging (EPI) technologies was developed for two channel breast MR EPI applications. A detailed design for a dual-channel. EPI-compatible, phased array breast coil is described. EPI digital data multiplexing, signal controlling and sampling schemes are also presented. Results from breast phantoms and patients demonstrate a 55% improvement in signal-to-noise ratio when compared to a conventional two-loop, single channel coil conliguration. This method can be easily expanded to a four or more channel. EPI-compatible, phased array system to improve field-of-view coverage and signal-to-noise ratio.

Tài liệu tham khảo

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