Rad229 (2020) Lecture-15B: Diffusion Weighted Imaging скачать в хорошем качестве

Rad229 (2020) Lecture-15B: Diffusion Weighted Imaging

"Rad229: MRI Signals and Sequences" is a course offered in the Department of Radiology at Stanford University (2020). Lecture-15: “Magnetization Preparation II - Diffusion” is broken down into three mini-lectures.  Lecture-15B reviews the basics of “Diffusion Weighted Imaging”. The learning objectives include:  • Recall a simple expression for how the MRI signal depends on diffusion. • Understand how gradients control diffusion sensitivity. • Appreciate how the spin echo DWI sequence is built. • Describe the steps required to measure diffusion with MRI. • Distinguish high and low ADC from DWI-based images. • Explain the concept of T2 shine through from the signal eqn.