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Fig. 2 —Radiation dose for 4-, 8-, and 16-MDCT units using standard
departmental protocol for CT of chest. Bars represent average radiation dose
of five thermoluminescent dosimeters used at center, anterior, and lateral
positions, respectively, in slice 18 (midportion of heart) of Rando phantom
(The Phantom Laboratory). Error bars are 2 x SD.
