Contrast in MRI

This lecture covers the principles of magnetic resonance imaging (MRI), including spectroscopy, Fourier transform NMR, and multi-dimensional imaging. It explains how gradient strength affects spatial resolution, the use of k-space in imaging experiments, and the role of contrast agents in enhancing image contrast. The instructor discusses techniques such as echo planar imaging and smart contrast agents, as well as the imaging of neural activity using BOLD contrast. The lecture also delves into diffusion tensor imaging and the use of paramagnetic ions for fast relaxation. Various concepts related to MRI, including slice selection, flow imaging, and functional MRI, are explored in detail.