A simulator for teaching MR image contrast behavior

Autor: Torheim, Geir, Rinck, Peter A., Jones, Richard A., Kvaerness, Jørn
Zdroj: MAGMA Magnetic Resonance Materials in Physics, Biology and Medicine; December 1994, Vol. 2 Issue: 4 p515-522, 8p
Abstrakt: A computer program to create magnetic resonance images simulating the main features of a magnetic resonance imaging (MR) machine was developed on a personal computer. The simulated MR images are calculated using the relevant equations describing a chosen pulse sequence on the basis of proton density,T1 andT2 images acquired from whole-body MR equipment. The imaging parameters (i.e., TR, TE, TI, etc.) are provided by the user. This program produces highly realistic simulated images and includes features such as choice of echo time, inversion time, repetition time and flip angle, as well as standard features of image display programs such as setting of window level/width, zooming and region of interest definition. A novel additional feature is the ability to define artificial pathologies in user-defined areas by specifying changes in the relaxation times and proton density. The simulator has been developed for teaching and training purposes. A prototype version has been used for teaching MRI with extremely positive reactions from students.
Databáze: Supplemental Index