A Spectral-Scanning Magnetic Resonance Imaging (MRI) Integrated System

摘要

An integrated spectral-scanning magneticudresonance imaging (MRI) technique is implemented in aud0.12μm SiGe BiCMOS process. This system is designed forudsmall-scale MRI applications with non-uniform and lowudmagnetic fields. The system is capable of generatingudcustomized magnetic resonance (MR) excitation signals, andudalso recovering the MR response using a coherent directudconversion receiver. The operation frequency is tunable fromudDC to 37MHz for wide-band MRI and up to 250MHz forudnarrow-band MR spectroscopy.ud