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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