But when the ratio was 1:0, the radiation dose was accordant with the estimated dose. Conclusions Chromosome aberrations could be a biomarker for estimating the uneven irradiation.

而在1：0组，照射剂量与估算剂量基本一致。结论染色体畸变可以作为估算非均匀照射的生物学指标之一。

youdao

In the first generation scanners, the dose was estimated to be up to 600 chest x-rays, but more recent technology has reduced the dose to nearly one fifth of the original estimates.

FORBES: Coronary CT Scans May Save You (And Your Hospital)