Cardiovascular imaging tests may use different methods such as echocardiography, multigated acquisition scan, cardiac angiography, and cardiac magnetic resonance imaging (CMR). The focus of this document is on tests done using the method of cardiac magnetic resonance imaging. Each example has a different focus to aid the end users in representing the data. This concept map highlights the different components or aspects that can be represented for study purposes. The study requirements define what level of detail is required for the study. The examples provide a way to represent the data if that level of detail is needed for each study.
The examples noted below provide use cases for different tests for CMR. The Systolic function example provides parameters related to the overall basic cardiac function. It provides tests such as ejection function, cardiac output, systolic and diastolic volumes. The laboratory test is used in this example to show how to relate laboratory data to cardiovascular tests. The Late Gadolinium Enhancement (LGE) example includes the procedure, cardiovascular, and procedure agent datasets. The purpose of these were to show how to represent different CMR machines, different types of test related to LGE, and contrast administration. The tests represented provide different levels of granularity to show the end user how to represent all types of data if it were needed for study purposes. The parametric mapping example provides more detail surrounding the procedure device because some of these factors may be of interest to researchers performing these type of studies. This example provides the procedure, the CMR device used, cardiovascular tests for parametric mapping such as longitudinal relaxation time (T1 mapping), and transverse relaxation time (T2 mapping) for different locations and segments. Imaging quality is shown in this example and how to reflect when a CMR test is not done for cases when it is of interest to researchers to understand that there was not a CMR image result and why. For this type of CV test, it was noted that device parameters may impact the test results so the device information is represented with this example. The circumferential and longitudinal strain example shows different locations for the assessment with how to represent additional analysis method that may be of interest (such as "feature tracking").