Su AW, et al. - In this retrospective comparative cohort study, investigators examined the delivered radiation dose between a low-dose hip computed tomography (CT) scan protocol vs traditional hip CT scan protocols (ie, "traditional CT"). They observed 41 consecutive cases in the low-dose group and 18 candidates in the traditional CT group. In comparison to traditional CT, low-dose CT resulted in a 90% reduction in radiation exposure (E_hip, 0.97 ± 0.28 mSv vs 9.68 ± 6.67 mSv). They did not find difference between the 2 groups in case of age (28 ± 11 years vs 26 ± 10 years), sex (83% female patients vs 76% female patients), and BMI (24 ± 3 vs 24 ± 3). They recorded a poor but significant association between E_hip and BMI in the low-dose CT group but did not correlate to BMI in the traditional CT group. As compared with traditional CT, a low-dose hip CT protocol for the purpose of hip-preservation surgical planning resulted in a 90% reduction in radiation exposure.