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Table 5 Radiation dose results in low-dose and ultra-low-dose protocols

From: Agreement between low-dose and ultra-low-dose chest CT for the diagnosis of viral pneumonia imaging patterns during the COVID-19 pandemic

  CTDIvol DLP, Mean (± SD) ED, Mean (± SD) P value
Low-dose 1.15 36.5(± 5.2) 0.51(± 0.07)  < 0.001
Ultra-low-dose 0.34 9.9 (± 1.8) 0.14 (± 0.03)
  1. CTDIvol CT dose index volume, DLP dose-length product, ED effective dose, SD standard deviation