Principle

The basic principles of 2D MR imaging are demonstrated with two methods relying on two different gradient techniques. Experiments are executed with a MRT training device giving the opportunity to investigate some small probes in the sample chamber. Device control is done with the provided software. Investigations comprise the generation of a two-dimensional cross-section image via the spin echo technique, i.e. a spin echo signal is investigated while simultaneously superimposed with a magnetic field gradient, and the generation of a two-dimensional cross-section image via the gradient echo technique, i.e. a particular gradient echo signal is investigated. The latter technique is closely linked to the FLASH (Fast Low Angle Shot) which is an ultrafast technique in MR imaging. 

Benefits


Complete, easy to install and affordable MRT education system

One system to cover all aspects from NMR basics to sophisticated 2D and 3D imaging sequences

Detailed experiment guides included with the system

Learning results guaranteed thanks to easy to manage course steps

Can be set up at any location in the student lab

Experience the realistic sound of the different MR sequences


Tasks


Using the frequency and phase gradient techniques to generate a spin echo signal which can be used for 2D image reconstruction (Spin Echo 2D).

Using the frequency and phase gradient techniques to generate a gradient echo signal which can be used for 2D image reconstruction (Flash 2D).


What you can learn about


Nuclear spins

Precession of nuclear spins

Resonance condition, MR frequency

MR flip angle

FID signal (Free Induction Decay)

Magnetic gradient fields

Spatial encoding (frequency coding, phase coding)

Spin echo, gradient echo

Fast-Fourier-Transformation (FFT)

T1/T2 relaxation times 

De-/Rephasing