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Table 4: 
Significance levels (P values) for the pairwise comparison of IPAT factor levels with respect to each end point
End PointIPAT Factor Levels Compared
0 vs 20 vs 32 vs 3
SNR.186.042*.146
CNR.155.020*.074
Score.004*.004*.014*
A1.059.004*.009
A2.371.004*.004*
M1.371.009*.009*
M2.371.006*.009*
M3.022*.009*.100
AB.999.006*.006*
P2.059.004*.006*
P3.022*.009*.371
  • Note:—IPAT indicates integrated parallel acquisition technique; SNR, signal-to-noise ratio; CNR, contrast-to-noise ratio; A1 and A2, A1 and A2 segments of anterior cerebral artery; M1, M2, and M3, M1, M2, and M3 segments of middle cerebral artery; P2 and P3, P2 and P3 segments of posterior cerebral artery; BA, basilar artery. Statistically significant results are marked with asterisks.