The purpose was to derive local diagnostic reference levels (LDRLs) for adults common computed tomography (CT) examinations in Moroccan hospital. The data of patients were collected retrospectively from one facility for 2 months period. The proposed LDRLs were defined as 75th percentile of spreads for CT dose index-volume (CTDIvol) and dose length product (DLP). Findings were compared with diagnostic reference levels (DRLs) of France, Australia and Egypt. A total of 259 cases were enrolled including 53% of male and 47% of female. The corresponding LDRLs in terms of CTDIvol (mGy) were 58, 15, 15 and 14 for head, chest, abdomen–pelvis and chest–abdomen–pelvis CT examinations, respectively. For DLP (mGy.cm) were 1298, 944, 1874 and 2026, respectively. The proposed LDRLs for CTDIvol were almost similar to DRLs of Australia, higher than those of France and lower than Egyptian DRLs. In terms of DLP, LDRLs were higher than compared studies with exception of head CT, which were lower and higher for CTDIvol than Egyptian DRLs. The results highlight higher radiation doses during adult CT scans, indicating the need to spread the same investigation regarding other imaging procedures including different radiological examinations across Moroccan hospitals.

中文翻译：

---

摩洛哥医院普通成人 CT 检查的当地诊断参考水平的推导

目的是为摩洛哥医院的成人常见计算机断层扫描 (CT) 检查得出当地诊断参考水平 (LDRL)。患者的数据是从一个设施回顾性收集的，为期 2 个月。提议的 LDRL 被定义为 CT 剂量指数体积 (CTDIvol) 和剂量长度乘积 (DLP) 分布的第 75 个百分位数。将结果与法国、澳大利亚和埃及的诊断参考水平 (DRL) 进行了比较。共纳入259例，其中男性占53%，女性占47%。以 CTDIvol (mGy) 表示的相应 LDRL 分别为 58、15、15 和 14，分别用于头部、胸部、腹部 - 骨盆和胸部 - 腹部 - 骨盆 CT 检查。DLP (mGy.cm) 分别为 1298、944、1874 和 2026。CTDIvol 的拟议 LDRL 与澳大利亚的 DRL 几乎相似，高于法国，低于埃及的 DRL。在 DLP 方面，LDRL 高于比较研究，但头部 CT 除外，CTDIvol 比埃及 DRL 更低和更高。结果突出了成人 CT 扫描期间更高的辐射剂量，表明需要对其他成像程序进行相同的调查，包括在摩洛哥医院进行不同的放射检查。