This study aims to estimate the effective radiation dose and organ dose from head CT procedures. It was conducted in three main private hospitals in Khartoum State-Sudan, using Toshiba machines with 64 slices. The total number of patients included in this study was 142 patients (82 males and 60 females). The effective dose and organ dose were calculated by CT Expo software. The effective dose slightly varied among patients according to gender and age. The effective dose for female patients (5.99 mSv) was higher than that for male patients (5.84 mSv), and the pediatric dose (5.46 mSv) was lower than the adults’ dose (5.94 mSv).

The dose for eye lens was found lower for male patients (89.117 mSv) than the dose for female patients (94.62) mSv). According to patients’ age: the dose received by the lens of the eye was much lower in pediatric (79.93 mSv) than the adults (92.41 mSv). The dose for thyroid in female patients (33.52 mSv) was higher than the male patients (28 mSv). The pediatric dose (28.34 mSv) was lower than the adults’ dose (30.64 mSv).

Departmental imaging protocol and lack of training among hospital staff are expected to be responsible for these variations. Therefore, this study recommends that the CT technologists be trained on suitable strategies to achieve dose optimization. Moreover, patients’ doses must be monitored regularly.

本研究旨在估计头部 CT 程序的有效辐射剂量和器官剂量。该研究在苏丹喀土穆州的三家主要私立医院进行，使用具有 64 个切片的东芝机器。本研究纳入的患者总数为 142 名患者（82 名男性和 60 名女性）。采用CT Expo软件计算有效剂量和器官剂量。根据性别和年龄的不同，患者的有效剂量略有不同。女性患者有效剂量（5.99 mSv）高于男性患者（5.84 mSv），儿童有效剂量（5.46 mSv）低于成人剂量（5.94 mSv）。

研究发现，男性患者眼晶状体剂量（89.117 mSv）低于女性患者（94.62 mSv）。根据患者年龄：儿童晶状体接受的剂量（79.93 mSv）远低于成人（92.41 mSv）。女性患者的甲状腺剂量（33.52 mSv）高于男性患者（28 mSv）。儿童剂量（28.34 mSv）低于成人剂量（30.64 mSv）。

部门成像协议和医院工作人员缺乏培训预计是造成这些差异的原因。因此，本研究建议 CT 技术人员接受适当策略的培训，以实现剂量优化。此外，必须定期监测患者的剂量。