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. 2018 Jun 14;19(4):809–817. doi: 10.3348/kjr.2018.19.4.809

Fig. 3. APEvol of each column (each 5-, 10-, and 30-mm) on (A) low-dose CT and (B) standard-dose CT.

Fig. 3

Mean APEvol in all air columns was lowest in IMR-R1 in both low-dose and standard-dose settings. Mean APEvol decreased as volume of air columns increased.