The purpose of this study was to evaluate the size-specific dose estimates (SSDE) of paediatric patients who underwent head computed tomography (CT) examinations for various protocols in the Patut Patuh Patju Hospital, West Lombok, Indonesia. Three types of protocols commonly used in the paediatric head CT examinations during 2017-2018 were protocols of 1.1 (axial routine head), 1.2 (helical routine head) and 11.1 (paediatric head). Patients were divided into three age groups (0-1.5, 1.5-5 and 5-18 year). Data of computed tomography dose index volume (CTDIvol) were obtained from Digital Imaging and Communications in Medicine (DICOM) files of patient CT images. The effective diameter, water-equivalent diameter and SSDE were calculated from the patient's CT image using the IndoseCT software. This research pointed out that SSDE for the paediatric head protocol was far lower than the axial and helical routine head protocols. It was found that the implementation of the 11.1, 1.1 and 1.2 protocols were 20, 37 and 43%, respectively. It is essential for education to the medical personnel involved to implement the protocol of paediatric head CT to avoid an excessive dose of paediatrics in the head CT examination.

中文翻译：

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不同方案的小儿头部 CT 检查的大小特异性剂量估计。

本研究的目的是评估在印度尼西亚西龙目岛 Patut Patuh Patju 医院接受各种方案的头部计算机断层扫描 (CT) 检查的儿科患者的体型特异性剂量估计 (SSDE)。2017-2018 年儿科头部 CT 检查中常用的三种方案是 1.1（轴向常规头）、1.2（螺旋常规头）和 11.1（儿科头）。患者被分为三个年龄组（0-1.5、1.5-5 和 5-18 岁）。计算机断层扫描剂量指数体积 (CTDIvol) 的数据从患者 CT 图像的医学数字成像和通信 (DICOM) 文件中获得。使用 IndoseCT 软件根据患者的 CT 图像计算有效直径、水当量直径和 SSDE。该研究指出，儿科头部方案的 SSDE 远低于轴向和螺旋常规头部方案。发现 11.1、1.1 和 1.2 协议的执行率分别为 20%、37% 和 43%。必须对参与的医务人员进行教育，以执行儿科头部 CT 的协议，以避免在头部 CT 检查中过度剂量的儿科。