Skip to main content

Table 3 Comparative data of radiation CT dose analysis data of the ASIR and non-ASIR groups

From: Value of using adaptive statistical iterative reconstruction-V (ASIR-V) technology in pediatric head CT dose reduction

Tube current (mA) CTDI vol (mGy) DLP (mGy cm) Test of significance with non-ASIR group ED (mSv) Test of significance with non-ASIR group
ASIR (n = 27) 14.36 ± 3 256.7 ± 37.8 t = 8.66, p = 0.0001* 1.04 ± 0.1 t = 13.24, p = 0.001*
40 mA (n = 7) 8.9 ± 2.14 146.03 ± 12.84 t = 10.86, p = 0.0001* 0.63 ± 0.04 t = 16.1, p = 0.001*
60 mA (n = 8) 12.13 ± 2.6 208.94 ± 24.9 t = 9.96, p = 0.0001* 0.84 ± 0.067 t = 16.32, p = 0.001*
80 mA (n = 7) 16.18 ± 3.09 278.58 ± 43.7 t = 7.55, p = 0.0001* 1.11 ± 0.09 t = 13.63, p = 0.001*
100 mA (n = 5) 20.22 ± 4.2 393.73 ± 71.4 t = 4.71, p = 0.0008* 1.57 ± 0.19 t = 9.07, p = 0.001*
148 mA (non-ASIR) (n = 14) 35.61 ± 6.7 614.23 ± 112.31   3.48 ± 0.45  
  1. *Statistically significant if p < 0.05
  2. All parameters are described as mean ± standard deviation
  3. ASIR adaptive statistical iterative reconstruction, mA milliampere, CTDI vol CT dose index volume, DLP dose length product, ED effective dose