Comparative observation on the predictive value of coronary artery magnetic resonance angiography and CT for cardiac events in suspected coronary heart disease patients
Objective To explore the predictive value of coronary artery magnetic resonance angiography(CMR)and computed tomography(CT)for cardiac events in suspected coronary heart disease patients.Methods 106 patients with suspected coronary heart disease were selected as the research subjects.They were divided into adverse event group(26 cases)and non-adverse event group(80 cases)according to their prognosis.CMR and 64-slice spiral CT were performed in both groups.The vessel length and inner diameter of right coronary artery and CT plaque characteristics in CMR were compared between the two groups.Results CMR showed that the vessel length and internal diameter of right coronary artery were(81.12±2.18)and(2.96±0.23)mm in the adverse event group,which were significantly smaller than(84.36±3.29)and(3.45±0.69)mm of the non-adverse event group,and there was significant difference(P<0.05).On CT imaging,the plaque rate in the adverse event group was 69.23%(18/26),with 3 calcified plaques(11.54%),10 fibrous plaques(38.46%),and 5 mixed plaques(19.23%);and in the non-adverse event group,the plaque rate was 26.25%(21/80),with 13 calcified plaques(16.25%),3 fibrous plaques(3.75%),and 5 mixed plaques(6.25%).There were significant differences in plaque rate and plaque properties between adverse event group and non-adverse event group(P<0.05).There was no significant difference in plaque location between the two groups(P>0.05).Conclusion CMR performs well in evaluating myocardial structure and function,as well as detecting microcirculation abnormalities and coronary spasm,making it safer for patients who are intolerant to radiation exposure or allergic to contrast agents.CT performs well in directly assessing the anatomical structure and disease severity of coronary arteries,and is a powerful tool for understanding the severity of coronary heart disease.
Coronary artery magnetic resonance angiographyComputed tomographyCoronary heart diseaseCardiac eventsPredictive value
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