Table 1. Parameters used in MC and FPFDM simulations along with total computing times to calculate ΔR₂ ^* values for 18 cylinder radii.

Parameters	Meaning	Value
TE	Echo time	60 ms
Δt	Simulation time step	0.2 ms
Δχ	Susceptibility difference	10−7
B0	Static magnetic field	1.5 T
Vp	Cylinder volume fraction	2%
D	Water diffusion coefficient	10−5 cm2/s
Ns	Number of spins used in MC method	1000
TimeMC	Computing time for MC method	220 s
TimeFPFDM	Computing time for FPFDM	140 s