Non-contrast cine cardiovascular magnetic resonance-based radiomics nomogram for predicting microvascular obstruction after reperfusion in ST-segment elevation myocardial infarction

Liu, Xiaowen1; Xu, Ting1; Peng, Yongjia1; Yuan, Jialin2; Wang, Shuxing1; Xu, Wuyan3; Gong, Jingshan2

2023-11-03

10.3389/fcvm.2023.1274267

FRONTIERS IN CARDIOVASCULAR MEDICINE   影响因子和分区

2297-055X

PurposeThis study aimed to develop and validate a cine cardiovascular magnetic resonance (CMR)-based radiomics nomogram model for predicting microvascular obstruction (MVO) following reperfusion in patients with ST-segment elevation myocardial infarction (STEMI).MethodsIn total, 167 consecutive STEMI patients were retrospectively enrolled. The patients were randomly divided into training and validation cohorts with a ratio of 7:3. All patients were diagnosed with myocardial infarction with or without MVO based on late gadolinium enhancement imaging. Radiomics features were extracted from the cine CMR end-diastolic volume phase of the entire left ventricular myocardium (3D volume). The least absolute shrinkage and selection operator (LASSO) regression was employed to select the features that were most relevant to the MVO; these features were then used to calculate the radiomics score (Rad-score). A combined model was developed based on independent risk factors screened using multivariate regression analysis and visualized using a nomogram. Performance was assessed using receiver operating characteristic curve, calibration curve, and decision curve analysis (DCA).ResultsThe univariate analysis of clinical features demonstrated that only cardiac troponin I (cTNI) was significantly associated with MVO. LASSO regression revealed that 12 radiomics features were strongly associated with MVO. Multivariate regression analysis indicated that cTNI and Rad-score were independent risk factors for MVO. The nomogram based on these two features achieved an area under the curve of 0.86 and 0.78 in the training and validation cohorts, respectively. Calibration curves and DCA indicated the clinical feasibility and utility of the nomogram.ConclusionsA CMR-based radiomics nomogram offers an effective means of predicting MVO without contrast agents and radiation, which could facilitate risk stratification of patients with STEMI after PCI for reperfusion.

non-contrast cine CMR ST-segment elevation myocardial infarction microvascular obstruction radiomics risk stratification

SCI

英语

通讯

Shenzhen Science and Technology Project[GJHZ20180928172002087]

Cardiovascular System & Cardiology

Cardiac & Cardiovascular Systems

WOS:001104098800001

FRONTIERS MEDIA SA

Web of Science

1.Jinan Univ, Clin Med Coll 2, Shenzhen, Peoples R China
2.Southern Univ Sci & Technol, Jinan Univ, Shenzhen Peoples Hosp, Affiliated Hosp 1,Clin Med Coll 2,Dept Radiol, Shenzhen, Peoples R China
3.Jinan Univ, Guangzhou Red Cross Hosp, Guangzhou, Peoples R China

Liu, Xiaowen,Xu, Ting,Peng, Yongjia,et al. Non-contrast cine cardiovascular magnetic resonance-based radiomics nomogram for predicting microvascular obstruction after reperfusion in ST-segment elevation myocardial infarction[J]. FRONTIERS IN CARDIOVASCULAR MEDICINE,2023,10.

Liu, Xiaowen.,Xu, Ting.,Peng, Yongjia.,Yuan, Jialin.,Wang, Shuxing.,...&Gong, Jingshan.(2023).Non-contrast cine cardiovascular magnetic resonance-based radiomics nomogram for predicting microvascular obstruction after reperfusion in ST-segment elevation myocardial infarction.FRONTIERS IN CARDIOVASCULAR MEDICINE,10.

Liu, Xiaowen,et al."Non-contrast cine cardiovascular magnetic resonance-based radiomics nomogram for predicting microvascular obstruction after reperfusion in ST-segment elevation myocardial infarction".FRONTIERS IN CARDIOVASCULAR MEDICINE 10(2023).