First select a sequence:




Then adjust the parameters:
TR









TE









FA

















TI











Mastering MR Imaging Parameters
David Wang MD PhD, Anshul Haldipur MD, Emanuel Kanal MD FACR, University of Pittsburgh Medical Center

Repetition Time (TR) Time (msec) between successive pulse sequences applied to the same slice.
Echo Time (TE) Time (msec) between the application of the 90 degree pulse and the peak of the echo signal.
Flip Angle (FA) Angle to which the net magnetization is rotated relative to the main magnetic field.
Inverstion Time (TI) Time (msec) between the 180 degree and the 90 degree pulses in an inversion recovery sequence.

* The images and calculations on this site are created by Kanal's MR Tutor/Simulator (TM) software; created and owned by Emanuel Kanal, MD, used and posted with his permission.
* Presented at RSNA 2011 and ARRS 2012.