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Table 4 Comparison of image noise (SD) between 120 and 80 KVP

From: Studies on the radiation dose, image quality and low contrast detectability from MSCT abdomen by using low tube voltage

  Image noise(SD) Student t-test p value
120 KVP 80 KVP
Mean ± SD 7.90 ± 3.23 15.15 ± 6.56 2.62 0.022*
Min–Max 5.09–14.61 9.89–28.21
  1. *means p < 0.05