广西医学2017，Vol.39Issue(7)：959-960,963,3.DOI:10.11675/j.issn.0253-4304.2017.07.08
自动管电流调制技术对甲状腺CT图像质量及甲状腺辐射量的影响
Effect of automatic tube current modulation technique on quality of thyroid CT images and thyroid radiation dose
摘要
Abstract
Objective To explore the effect of automatic tube current modulation(ATCM) technique on the quality of thyroid CT images and the thyroid radiation dose.Methods Forty patients with thyroid diseases were randomly divided into two groups,with 20 cases in each group.Group A underwent routine CT scan while Group B underwent scan with ATCM technique.The objective quality of images(including noise value and signal-to-noise ratio),subjective quality score of images and CT dose index were compared between the two groups.Results No significant differences were found between the two groups in noise values of cleidomastoid,thyroid nodules and thyroid parenchyma,or the signal-to-noise ratio of cleidomastoid(all P>0.05).Fifty cases and 5 cases in Group A achieved 4 scores and 3 scores of subjective quality of images compared to 12 cases and 8 cases in Group B,respectively.There was no significant difference in the quality score of image between the two groups(P>0.05).The CT dose index of Group A was higher than that of Group B(28.29±0.44 mGy vs.24.61±0.91 mGy;P<0.05).Conclusion ATCM technique can obtain good quality of images and significantly reduce the thyroid radiation dose in the scanning for patients with thyroid diseases.关键词
甲状腺疾病/计算机断层摄影术/自动管电流调制/辐射剂量/图像质量Key words
Thyroid diseases/Computer tomography/Automatic tube current modulation/Radiation dose/Quality of image分类
医药卫生引用本文复制引用
徐列印,周程,邢腾龙,邱维加,何敏丽,陈德勤..自动管电流调制技术对甲状腺CT图像质量及甲状腺辐射量的影响[J].广西医学,2017,39(7):959-960,963,3.基金项目
广西壮族自治区教育厅基金(KY2016LX222) （KY2016LX222）
