|Cumulative Duration of Training||Minimum Total Number of Mentored Examinations Performed||Minimum Number of Mentored Examinations Interpreted|
|Level 1||1 month||—||50†|
|Level 2||3 months⁎||50||150†|
|Level 3||1 year⁎||100||300†|
↵⁎ This represents cumulative time spent interpreting, performing, and learning about CMR, and need not be a consecutive block of time, but at least 50% of the time should represent supervised laboratory experience. This can include time spent at educational courses on the topic. Training time is defined as a minimum of 35 h/week.
↵† The caseload recommendations may include studies from an established teaching file, previous CMR cases, and electronic/on-line CME.