title: A realization of digital wireless transmission for MRI signals based on 802.11b.
abstract: In this paper, a digital wireless transmission system based on 802.11b standard for magnetic resonance imaging (MRI) application is designed and built for the first time to eliminate the interference aroused by coil array cables. The analysis shows that the wireless receiver has a very high sensitivity to detect MRI signals. The modulation technique of differential quadrature phase shift keyed (DQPSK) can be applied to MRI data transmission with rate of 2 Mbps and bandwidth of 2 MHz. The bench test verifies that this wireless link has a dynamic range over 86 dB supporting up to 3 T MRI system data transmission. The 2D spin echo imaging of phantom is performed and the SNR of the image obtained by the wireless transmission can be comparable with that got by the coaxial cables.
authors: Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam, Hong Kong.
authors: Juan
authors: J
authors: Wei
authors: Zhengguang
authors: Z
authors: Liu
authors: Zhi
authors: Z
authors: Chai
authors: Jing
authors: J
authors: Yuan
authors: Jianyu
authors: J
authors: Lian
authors: Gary X
authors: GX
authors: Shen
mesh_terms: D008279:Magnetic Resonance Imaging / Q000295:instrumentation*; D019047:Phantoms, Imaging