中国医疗设备2024，Vol.39Issue(6)：131-136,6.DOI:10.3969/j.issn.1674-1633.2024.06.021
基于ATCM技术的不同探测器宽度对头颈CT血管成像图像质量与辐射剂量影响的研究
Study on the Effect of Different Detector Widths Based on ATCM Technology of Head and Neck CT Angiography Image Quality and Radiation Exposure
王振宇 1刘琼 1赵田田 1李栋 1赵昱东 1熊刚2
作者信息
- 1. 阳光融和医院 医学影像科,山东 潍坊 261061
- 2. 潍坊医学院附属医院 医学工程部,山东 潍坊 261031
- 折叠
摘要
Abstract
Objective To explore the effect of different detector widths based on automatic tube current modulation(ATCM)technology on the image quality and radiation exposure of head and neck CT angiography(CTA).Methods A total of 120 cases of head and neck CTA examination images and clinical data who visited Sunshine Union Hospital from June 2022 to May 2023 were selected.According to the different detector widths,they were divided into group A(40 mm)and group B(80 mm),with 60 cases in each group.There were 20 cases of patients with normal weight,overweight,and obese patients respectively.The image quality and radiation dose of the two groups were compared under different detector widths scanning conditions.Results There was no statistically significant difference in the head and neck image quality noise ratio among normal weight,overweight,and obese patients under different detector widths(P＞0.05);There was no statistically significant difference in the head and neck image quality CT value ratio among normal weight,overweight,and obese patients under different detector widths(P＞0.05);The dose length product of normal,overweight,and obese patients with 40 mm detector width spiral scanning was lower than that of 80 mm detector width spiral scanning,and the difference was statistically significant(P＜0.05).Conclusion Selection of 40 mm detector width based on ATCM can ensure the image quality of head and neck CTA and reduce radiation exposure.关键词
CT血管成像/自动管电流调制/探测器宽度/图像质量/辐射剂量Key words
CT angiography/automatic tube current modulation/detectors widths/image quality/radiation exposure分类
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王振宇,刘琼,赵田田,李栋,赵昱东,熊刚..基于ATCM技术的不同探测器宽度对头颈CT血管成像图像质量与辐射剂量影响的研究[J].中国医疗设备,2024,39(6):131-136,6.
