[1]沈 骏.自动管电流调制技术对CT血管成像辐射剂量及图像质量的影响[J].医学信息,2026,39(04):140-143,148.[doi:10.3969/j.issn.1006-1959.2026.04.025]
　SHEN Jun.Effect of Automatic Tube Current Modulation Technique on Radiation Doseand Image Quality of CT Angiography[J].Journal of Medical Information,2026,39(04):140-143,148.[doi:10.3969/j.issn.1006-1959.2026.04.025]
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自动管电流调制技术对CT血管成像辐射剂量及图像质量的影响()

医学信息[ISSN:1006-1959/CN:61-1278/R]

卷:
39卷
期数:
2026年04期
页码:
140-143,148
栏目:
临床证据信息
出版日期:
2026-02-15

文章信息/Info

Title:
Effect of Automatic Tube Current Modulation Technique on Radiation Doseand Image Quality of CT Angiography
文章编号:
1006-1959（2026）04-0140-05
作者:
沈 骏
泰州市疾病预防控制中心职业健康科，江苏 泰州 225300
Author(s):
SHEN Jun
Occupational Health Department, Taizhou Center for Disease Control and Prevention, Taizhou 225300, Jiangsu, China
关键词:
自动管电流调制技术; CT血管成像; 辐射剂量; 图像质量; 病变检出率
Keywords:
Automatic tube current modulation technology;  CT angiography;  Radiation dose;  Image quality;  Lesion detection rate
分类号:
R445
DOI:
10.3969/j.issn.1006-1959.2026.04.025
文献标志码:
A
摘要:
目的 探讨自动管电流调制技术在CT血管成像（CTA）检查中对辐射剂量、图像质量、病变检出率及患者耐受度的影响。方法 选取2022年10月-2024年10月泰州市某三甲医院收治的280例需行CTA检查的患者作为研究对象，采用随机数字表法分为对照组和观察组，每组140例。对照组采用固定管电流模式进行CTA扫描，观察组采用自动管电流调制技术进行CTA扫描。比较两组辐射剂量相关指标（容积CT剂量指数、剂量长度乘积、有效剂量）、图像质量相关指标（图像质量评分、CT值、噪声、信噪比、对比噪声比、图像质量达标率）、病变检出率及患者耐受度指标（不良反应发生率、视觉模拟评分）。结果 观察组容积CT剂量指数、剂量长度乘积、有效剂量均低于对照组（P＜0.05）。观察组图像质量评分、信噪比、对比噪声比均高于对照组（P＜0.05），且图像质量达标率（98.57%）与对照组（96.43%）相比，差异无统计学意义（P＞0.05）。观察组病变检出率（98.86%）高于对照组（91.86%）（P＜0.05）。观察组视觉模拟评分低于对照组（P＜0.05），不良反应发生率（4.29%）与对照组（5.71%）相比，差异无统计学意义（P＞0.05）。结论 自动管电流调制技术应用于CTA检查可降低辐射剂量，提升病变检出率和患者耐受度，同时维持良好的图像质量，符合临床低剂量高质量的检查需求，具有重要的临床推广价值。
Abstract:
Objective To investigate the effect of automatic tube current modulation technique on radiation dose, image quality, lesion detection rate and patient tolerance in CT angiography (CTA). Methods A total of 280 patients who needed CTA examination in a tertiary hospital in Taizhou from October 2022 to October 2024 were selected as the research objects. They were divided into control group and observation group by random number table method, with 140 patients in each group. The control group was scanned by CTA with fixed tube current mode, and the observation group was scanned by CTA with automatic tube current modulation technology. The radiation dose related indexes (volume CT dose index, dose length product, effective dose), image quality related indexes (image quality score, CT value, noise, signal-to-noise ratio, contrast-to-noise ratio, image quality compliance rate), lesion detection rate and patient tolerance index (incidence of adverse reactions, visual analogue score) were compared between the two groups. Results The volume CT dose index, dose length product and effective dose of the observation group were lower than those of the control group (P<0.05). The image quality score, signal-to-noise ratio and contrast-to-noise ratio of the observation group were higher than those of the control group (P<0.05), and the image quality compliance rate (98.57%) was not significantly different from that of the control group (96.43%) (P>0.05). The detection rate of lesions in the observation group (98.86%) was higher than that in the control group (91.86%) (P<0.05). The Visual Analogue Scale score of the observation group was lower than that of the control group (P<0.05). There was no significant difference in the incidence of adverse reactions between the observation group (4.29%) and the control group (5.71%) (P>0.05). Conclusion The application of automatic tube current modulation technology in CTA examination can reduce the radiation dose, improve the lesion detection rate and patient tolerance, while maintaining good image quality, which meets the clinical needs of low-dose and high-quality examination, and has important clinical promotion value.

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更新日期/Last Update: 1900-01-01