Left ventricular ejection fraction and white blood cell count are the two independent risk factors for predicting intramyocardial hemorrhage in patients with ST-segment elevation myocardial infarction after reperfusion

aDepartment of Ultrasound, Xining First People's Hospital, Xining, Qinghai Province, People's Republic of China bDepartment of Ultrasound, The Fourth Affiliated Hospital of Nanjing Medical University, Nanjing, People's Republic of China cDepartment of Ultrasound, Yangpu Hospital, School of Medicine, Tongji University, Shanghai, People's Republic of China Received 17 February 2024 Accepted 8 April 2024. *Dr. Lina Sun and Dr. Lijuan Zhang are cofirst authors. †Dr. Jiangli Qiang and Dr. Xiaozhi Zheng are cocorresponding authors. Correspondence to Jiangli Qiang, MM, Department of Ultrasound, Yangpu Hospital, School of Medicine, Tongji University, 450 Tengyue Road, Shanghai 200090, People's Republic of China Tel: +86 021 6569 0520 x8298; fax: +86 021 6569 0520 x8813; e-mail: [email protected]