Evaluation of the effect of the introduction of iterative reconstruction (iDose) on dose length product (mGy.cm) and effective dose (mSv) across CT protocols.

1Dose length product, measured in mGy.cm2Effective dose calculated using ImPACT in mSv3Mean rank of DLP / Effective Dose before and following iDose. using the Mann Whitney U test (a rank-order (or nonparametric test) which assesses whether the before and after scores have a similar ranked distribution).4Statistical significance of the difference in the mean rank DLP / mean Effective Dose following iDose compared with prior to iDose (ie probability of the scores belonging to a single group).*Statistically significant (pEvaluation of the effect of the introduction of iterative reconstruction (iDose) on dose length product (mGy.cm) and effective dose (mSv) across CT protocols.1. 剂量长度乘积（Dose Length Product, DLP），计量单位为毫戈瑞·平方厘米（mGy·cm²）；2. 有效剂量（Effective Dose）通过ImPACT工具计算，计量单位为毫西弗（mSv）；3. 采用曼-惠特尼U检验（Mann Whitney U test，一种秩和非参数检验，用于评估前后两组得分是否具有相似的秩分布），计算迭代重建算法iDose使用前后的DLP与有效剂量的平均秩次；4. 对比iDose启用前后的平均秩次DLP与平均秩次有效剂量的差异是否具有统计学显著性（即两组得分是否属于同一分布的概率）。*具有统计学显著性（原文此处p值未完整给出）；本数据集用于评估迭代重建技术（iDose）在各类CT扫描协议中对剂量长度乘积（单位：mGy·cm）与有效剂量（单位：mSv）的影响。