Open cncastillo opened 2 years ago
Attached the demo for cardiac sequences in: writeCineGradientEcho.zip
No ECG-like signal has yet been implemented for triggering, but, from #184, I have been able to simulate a bSSFP
sequence (as I say, without triggering, but always considering the same RR interval, of duration 1s) on a moving Phantom:
This looking fantastic Pablo! thanks for sharing :smile:, what is the function that generates this phantom?
In #184, see function read_phantom
. It is used to read file KomaMRI.jl/examples/2.phantoms/ring_motion.phantom
This can be divided into two problems:
Phantom
Phantom
object. Adding a parameter for this in thePhantom
object is necessary.Phantom
. My suggestion is that the phantom displacement field is defined for a normal heart rate of 1s, and then for each heartbeat, the displacement field is changed based on the RR [s], or $\boldsymbol{u}\left(\boldsymbol{x},\frac{1}{\mathrm{RR}_i}t\right)$.Pulseq
PulseDesigner
module the ability to create triggers like in the MATLAB implementation of Pulseq:trig=mr.makeTrigger('physio1','duration', 2000e-6);
.Simulation
Phantom
object to time theSequence
. This means the delays of some parts of theSequence
should be replaced based on the RR intervals.