CMR in Myocardial Infarction with Nonobstructive Coronary Arteries

Prognostic Value of CMR-related Parameters in Patients with MINOCA

MINOCA is accompanied by a worse prognosis, which is related to the inability to clarify the etiology.CMR has been explicitly recommended by guidelines as an etiologic diagnostic tool for MINOCA. Although CMR-related parameters, such as strain and ECV, have been shown to be associated with prognosis in patients with myocardial infarction. However, the relationship between CMR-strain or ECV and MINOCA is unclear. The aim of this study was to investigate the characterization of CMR-strain or ECV in patients with MINOCA and the relationship with prognosis.

Inclusion Criteria:

1. Complete CMR during hospitalization;
2. CAG results suggesting coronary stenosis of less than 50%;
3. peak hsTnT above the 99th percentile.

Exclusion Criteria:

• CMR image sequences are missing or of poor quality.