The Global CMR Registry aims to promote collaboration of CMR sites worldwide in setting imaging and reporting standards, assessing its diagnostic impact on patient care, and determining the cost-effectiveness of CMR imaging. It will be the largest collective body of evidence reflecting the current clinical applications in patient care, which healthcare payers and governing bodies alike can depend on when metrics such as testing appropriateness, common indications, and diagnostic effectiveness are called for. It will also be able to reflect any changes in patient impact from CMR over time as technical development evolves. Furthermore, it will allow an assessment of improvements in diagnostic and therapeutic thinking, risk stratification, and cost-effectiveness relevant to current patient management.

A global CMR registry can be a crucial infrastructure of our CMR community that has many benefits. First, it is the largest collective body of evidence reflecting the current clinical applications in patient care, which healthcare payers and governing bodies alike can depend on when metrics such as testing appropriateness, common indications, and diagnostic effectiveness are needed. Second, it reflects any change in patient impact from CMR over time as technical developments evolve. Third, it allows an assessment for improvement of diagnostic and therapeutic evaluation, risk stratification, and cost-effectiveness analysis relevant to patient management.

Some practical questions that a global CMR registry may be able ot address include:

1. Variations in CMR protocols within specific clinical indications
2. Variations in CMR post-processing, analysis, and reporting
3. Practice adherence to appropriateness criteria and guidelines
4. Clinical effectiveness of CMR over a long period of clinical application and/or technological advance
5. Differences in CMR utility across centers, regions, or countries

The data collection process will be a collective effort on part of specialized health professionals across various CMR sites worldwide. All of the data will be extracted from existing registries and databases. Health professionals in the U.S. and abroad will first upload patient data and images onto the registry/database that they currently use. Then if they choose to, they can transmit relevant patient de-identified data onto the global registry using a user-friendly web interface. CMR sites without a database will be invited to use CMR Cooperative or REDCAP. De-identified data (usually submitted in excel or CSV format) will be harmonized and uploaded to the registry website (www.gcmr-scmr.org), which is a firewall and password-protected database that resides at an IT vendor (Center for Systems Biology at Massachusetts General Hospital) in Boston, Massachusetts. The pooled data will be used for retrospective analysis/research approved by the GCMR steering committee and SCMR.

Inclusion Criteria:

• Cardiovascular disease, underwent CMR, CT, or ECG

Exclusion Criteria:

• Patients who are 90 years and older

The registry data will be collected from patients of various clinical CMR sites that have agreed to contribute their data to the registry.

Participating sites will send relevant de-identified to the data management team for harmonization. The aggregate data will be used for retrospective analyses and research. Researchers requesting data access for either grant proposals or sub-studies will be required to submit a proposal to the GCMR steering committee (composed of various experts in the CMR community) for approval.

If approved, data access will be given to the researchers for a specific time period determined by the magnitude of the work involved, and only for the purposes of the grant proposal or sub-study.