I am from China, 25 years old, and I dunno if I have been suffering this disease or not, perhaps only further diagnosises could tell.
This is my TCD report,(transcranial Doppler ultrasonography ) in which shows some anomaly of blood moving speed in some vessel, esp in Siphon, which seemed highly related to MoyaMoya.
If any one knows how to understand the data from the report, please send message to tell me.

Thank you!
(Velocities in CM/S)
Left Depth Vm Vs Vd PI RI(2MHz Occipital)
BA prox.
72 -30 -47 -21 0.79 0.55VA
58 -32 -48 -22 0.75 0.54(2MHz Orbital)
Siphon
64 -63 -122 -39 1.31 0.68(2MHz Temporal)
MCA
56 62 99 44 0.91 0.56ACA
66 -49 -78 -35 0.84 0.55PCA-P1
70 34 53 25 0.84 0.54 Right Depth Vm Vs Vd PI RI(2MHz Occipital)
VA
58 -31 -45 -21 0.73 0.53(2MHz Orbital)
Siphon
64 -37 -62 -22 1.00 0.64(2MHz Temporal)
MCA
54 68 112 46 0.98 0.59ACA
68 -36 -53 -30 0.57 0.44PCA-P1
68 35 52 26 0.71 0.49 Doppler spectral patterns are normal.
Conclusion:
1, velocities in BA and RACA decreased.
2, Velocities in LCS(Siphon) and RMCA increased.