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John M. Boone, PhD, FAAPM, FACR

Many of the accidents that spurred press coverage of CT overdoses in recent years occurred in California. This led to enactment of the state’s SB 1237 (and subsequent cleanup legislation), which will take effect on July 1, 2012. The law’s basic provisions are that the so-called CT dose—the volumetric CT dose index and the dose–length product—must