Bernard Lanz

Keywords: Physics & Engineering: Nuclear Magnetic Resonance

In this presentation on Basics of MR, the classical description of the NMR principles will be described with an introduction on the macroscopic magnetisation resulting from nuclear spins and how one can manipulate the magnetisation to acquire radio-frequency signals. The concept of pulse sequence will be presented as well as the different relaxation times affecting the excited magnetisation.

Yunhong Shu

Keywords: Education Committee: Clinical MRI

MRI, as a highly versatile imaging modality, relies on a complex relationship between signal detection and tissue properties. Optimizing its capabilities requires knowledge of signal generation, contrast modulation, and sequence selection. This talk reviews MRI contrast mechanisms across commonly used sequences, including spin-echo and gradient-echo techniques, with and without magnetization preparation. It also explores the role of MRI contrast agents, relaxometry, and methods like spectral fat suppression, inversion pulses, magnetization transfer saturation, and diffusion weighting in generating tissue contrast.

Jang-Yeon Park

Keywords: Image acquisition: Image processing

K-space is a data space that stores data obtained from MRI scans. At the same time, k-space is also the spatial frequency domain of images reconstructed from such stored data. Therefore, k-space is important not only to better understand MRI acquisition, but also to better understand the images obtained from it. In this talk, I will introduce the definition and important meaning of k-space, and the relationship between k-space and images. In addition, I will briefly explain how to reconstruct images and present some examples of image processing based on k-space and Fourier transformation.

Grace McIlvain

Peder Larson