Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 8/26/2025

Imaging Recommendations for Reassessing Heart Space in Pectus Excavatum

Initial Imaging Evaluation

  • The American College of Radiology recommends chest radiography (PA and lateral views) as the first imaging study to provide basic assessment of cardiac size, position, and pulmonary vasculature patterns, with a strength of evidence based on multiple citations 1, 3
  • The American College of Radiology suggests that transthoracic echocardiography (TTE) should be performed concurrently with chest radiography to assess cardiac function, structure, and any compression effects, with a strength of evidence based on multiple citations 1, 3

Advanced Imaging Options

Computed Tomography (CT)

  • No cited facts are available for this section

Magnetic Resonance Imaging (MRI)

  • Cardiac MRI without and with IV contrast is recommended by the American College of Radiology when more detailed assessment of cardiac function is needed, with a citation from 2017 3
  • The American College of Radiology recommends cardiac MRI for evaluation of interventricular dependence, with a citation from 2025 2

Clinical Considerations and Pitfalls

  • Stress imaging tests are generally not indicated unless there are specific concerns about coronary artery disease, according to the American College of Radiology, with citations from 2017 1, 3
  • The American College of Cardiology and American Heart Association suggest that cardiac catheterization is unnecessary for diagnosis and should be reserved only for interventional procedures, with a citation from 2008 4