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. 2015 Jul;36(7):1225–1230. doi: 10.3174/ajnr.A4270

Table 1:

Scan protocols and image qualitya

200 mAs 150 mAs 100 mAs 50 mAs 25 mAs
70 kV 4 3 3 2 2
80 kV 5 4 3 2 2
90 kV 5 5 5 4 3
100 kV 5 5 5 4 3
100 kV + Sn 3 3 2 2 2
120 kV 5 5 5 4 3
150 kV + Sn 5 5 5 4 3
a

5 indicates excellent image quality; 4, good image quality; 3, moderate quality; 2, sufficient for special indications; 1, insufficient.