首页|基于人工智能触发技术优化腹部增强图像质量的可行性研究

基于人工智能触发技术优化腹部增强图像质量的可行性研究

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目的 评估人工智能触发技术优化腹部增强CT图像质量的可行性.方法 前瞻性纳入行腹部增强CT扫描100名患者,随机分为两组(A组、B组,每组n=50)A组采用传统固定延迟时间团注追踪技术,B组采用人工智能触发技术.其余扫描方案均一致.比较两组患者的定量参数(CT值、SD值、SNR、CNR)及定性参数(总体图像质量和诊断可信度).结果 在动脉期,B组图像CT值均较高(P均<0.05),噪声无明显差异(P均>0.05).B组的SNR值与CNR值也较高,仅在主动脉(pSNR=0.546;pCNR=0.114)及胰腺处(pSNR=0.052)无统计学差异.静脉期中,B组图像CT值均较高,但仅在门静脉处有差异(P=0.025).SD值、SNR及CNR两组均无统计学差异(P均>0.05).两组图像的总体主观评分(P=1.000)及诊断信心(P=0.917)也无统计学差异.结论 与常规团注追踪技术相比,人工智能触发技术可以在满足影像诊断的前提下,明显改善腹部增强CT的客观图像质量.
Feasibility Study of Optimizing Abdominal Contrast-enhanced Image Quality Based on Artificial Intelligence Triggering Technology
Objective To assess the feasibility of artificial intelligence triggered techniques to Optimise Abdominal Enhanced CT Image Quality.Methods A prospective study included 100 patients undergoing contrast-enhanced abdominal CT scans,who were randomly divided into two groups(Group A,Group B,each with n=50).Group A used traditional fixed-delay time bolus tracking technique,while Group B used artificial intelligence triggering technique.The remaining scanning protocols were consistent.Quantitative parameters(CT value,SD value,SNR,CNR)and qualitative parameters(overall image quality and diagnostic confidence)of the two groups of patients were compared.Results In the arterial phase,the CT values of images in Group B were higher(P<0.05),with no significant difference in noise(P>0.05).The SNR and CNR values in Group B were also higher,with only the aorta(pSNR=0.546;pCNR=0.114)and pancreas(pCNR=0.052)showing no statistical difference.In the venous phase,the CT values of images in Group B were higher,but only the portal vein showed a difference(P=0.025).There was no statistical difference in SD value,SNR,and CNR between the two groups(P>0.05).There was also no statistical difference in the overall subjective image quality score(P=1.000)and diagnostic confidence(P=0.917)between the two groups.Conclusion Compared to conventional fixed-delay time bolus tracking technique,artificial intelligence triggering technique can significantly improve the objective image quality of contrast-enhanced abdominal CT scans while ensuring sufficient image quality for diagnosis.

AbdomenBolus Tracking TechniqueContrast-Enhanced CTContrast Agent

张怡存、余娟、原典、吕培杰、刘杰

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郑州大学第一附属医院放射科(河南郑州 450000)

腹部 团注追踪技术 增强CT 对比剂

河南省卫生健康委员会科技攻关项目

212102310142

2024

中国CT和MRI杂志
北京大学深圳临床医学院 北京大学第一医院

中国CT和MRI杂志

CSTPCD
影响因子:1.578
ISSN:1672-5131
年,卷(期):2024.22(10)