Brain MRI
MRI is a non-invasive imaging technique, which uses magnetic fields and radio waves to take pictures of brain structures without use of ionizing radiation (X-rays) or radioactive tracers. We are able to use multiple MR modalities (anatomical MRI, DTI, fMRI, MRS, ASL perfusion) to study brain development and various mental disorders.
MRI pulse sequence desgin
A pulse sequence is a set of defined RF and gradient pulses, usually repeated many times during a scan. The time interval between pulses, the amplitude/ phase/shape of the RF waveforms and the gradient waveforms will control NMR signal reception and affect the characteristics of the MR images. Pulse sequences are computer programs that control all hardware aspects of the MRI measurement process.
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Updated 2011.
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By: Feng Liu