Table 2.

Number of excluded articles in the current report based on their reason for exclusion

Reasons for exclusion	Number (%) of excluded studies
Not radiology study	113 (44.1%)
No full-text available	41 (16.0%)
Not cardiovascular study	34 (13.3%)
No human subject	34 (13.3%)
Not machine learning study	25 (9.8%)
Not original study	9 (3.5%)

Out of 845 identified studies, 256 were excluded, yielding a final pool of 589 eligible articles for data extraction