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复旦大学附属浦东医院放射科,上海 201399
方 慧,Email:fanghui13855138@163.com,研究方向:心血管影像诊断。
方 磊,Email:flei0601@163.com。
收稿:2025-03-09,
修回:2025-04-21,
录用:2025-05-10,
纸质出版:2026-05-28
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方慧,殷润,金利等.基于人工智能的冠状动脉周围脂肪衰减指数联合狭窄率及斑块特征预测心肌缺血的价值[J].重庆医科大学学报,2026,51(05):709-714.
Fang Hui,Yin Run,Jin Li,et al.Value of artificial intelligence-based pericoronary fat attenuation index combined with stenosis rate and plaque characteristics in predicting myocardial ischemia[J].Journal of Chongqing Medical University,2026,51(05):709-714.
方慧,殷润,金利等.基于人工智能的冠状动脉周围脂肪衰减指数联合狭窄率及斑块特征预测心肌缺血的价值[J].重庆医科大学学报,2026,51(05):709-714. DOI: 10.13406/j.cnki.cyxb.003927.
Fang Hui,Yin Run,Jin Li,et al.Value of artificial intelligence-based pericoronary fat attenuation index combined with stenosis rate and plaque characteristics in predicting myocardial ischemia[J].Journal of Chongqing Medical University,2026,51(05):709-714. DOI: 10.13406/j.cnki.cyxb.003927.
目的
2
探讨基于人工智能的冠状动脉周围脂肪衰减指数(fat attenuation index,FAI)联合冠状动脉CT血管成像(coronary CT angiography,CCTA)诊断的狭窄率与斑块特征预测心肌缺血的价值。
方法
2
回顾性分析2024年5月至2024年12月在复旦大学附属浦东医院行CCTA检查的资料,共纳入231例患者及其310个斑块。基于斑块分析CT血流储备分数(CT derived fractional flow reserve,CT-FFR)、FAI、狭窄率及斑块特征,根据CT-FFR≤0.80和CT-FFR>0.80,分为心肌缺血组和非心肌缺血组。比较FAI、狭窄率及斑块特征在2组间的差异;使用logistic回归分析筛选出心肌缺血的独立危险因素,构建并比较不同模型对心肌缺血的预测价值。
结果
2
FAI、狭窄率、斑块总体积、斑块长度、脂质斑块体积、纤维斑块体积、钙化斑块占比在2组间差异有统计学意义(
P
<
0.05);脂质斑块占比、纤维斑块占比、钙化斑块体积、高危斑块占比在2组间差异无统计学意义(
P
>
0.05)。与单一预测模型相比,FAI、狭窄率、斑块长度+脂质斑块体积的联合模型具有最高的预测效能(AUC=0.843,
P
<
0.05)。
结论
2
FAI、狭窄率、斑块长度、脂质斑块体积是心肌缺血的独立危险因素;FAI、狭窄率、斑块长度+脂质斑块体积的预测模型均对心肌缺血有较好的预测价值;联合应用可提高对心肌缺血的预测效能。
Objective
2
To investigate the value of artificial intelligence-based pericoronary fat attenuation index(FAI) combined with stenosis rate and plaque characteristics diagnosed by coronary CT angiography(CCTA) in predicting myocardial ischemia.
Methods
2
A retrospective analysis was performed for the data of 231 patients(310 plaques) who underwent CCTA in Pudong Hospital Affiliated to Fudan University from May to December 2024. CT-derived fractional flow reserve(CT-FFR),FAI,stenosis rate,and plaque characteristics were analyzed,and according to CT-FFR≤0.80 and CT-FFR>0.80,the patients were divided into myocardial ischemia group and non-myocardial ischemia group. FAI,stenosis rate,and plaque characteristics were compared between the two groups,and a logistic regression analysis was used to identify independent risk factors for myocardial ischemia,construct different models,and compare the value of these models in predicting myocardial ischemia.
Results
2
There were significant differences between the two groups in FAI,stenosis rate,total plaque volume,plaque length,lipid plaque volume,fibrous plaque volume,and the proportion of calcified plaques(
P
<
0.05),while there were no significant differences between the two groups in the proportions of lipid plaque and fibrous plaques,calcified plaque volume,and the proportion of high-risk plaques (
P
>
0.05). Compared with the predictive model based on a single factor,the model based on the combination of FAI,stenosis rate,plaque length,and lipid plaque volume had the highest predictive efficacy (AUC=0.843,
P
<
0.05).
Conclusion
2
FAI,stenosis rate,plaque length,and lipid plaque volume are independent risk factors for myocardial ischemia. The predictive models based on FAI,stenosis rate,plaque length,and lipid plaque volume have a good predictive value for myocardial ischemia,and the model based on the combination of these four factors can enhance the predictive efficacy for myocardial ischemia.
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