Weinan Tang1, Hongyu Sun1, Zechong Xiong1, Weimin Wang1
1Institute of Quantum Electronics, School of Electronic Engineering and Computer Science, Beijing, China
We suggest some ideas for building an inexpensive, scalable MR receiver with digital optical transmission. It consists of a RF front end at the magnet housing and a control interface at the electronics room. The MR signals from the preamplifiers are directly sampled, decimated, and transferred via an optical fiber. A high speed PCI express interface is implemented to connect the receiver to a reconstruction computer. In conjunction with a home built MRI system, this modular receiver has been verified for good performance and featured with scalability, high speed, and low cost.