Key Words: Quality Improvement, Echocardiography, Appropriate Use Criteria, Rarely Appropriate
Guidelines Statement: The systematic review was conducted with a protocol in accordance with the Preferred Reporting of Items for Systematic reviews and Meta-Analyses (PRISMA) statement.
Data Availability Statement: The data that support the findings of this study are available from the corresponding author upon reasonable request.
Sources of Funding: None
Disclosures: None
Conflicts of Interest: The authors report no relevant conflicts of interest.
Ethics Approval Statement: This manuscript complies with ethical standards.
Patient Consent Statement: This manuscript does not utilize patient data in a form requiring patient consent.