Multimodality Imaging of Complications of Cardiac Valve Surgeries

The role imaging modalities play in the evaluation of prosthetic heart valve dysfunction is examined.

Course ID: Q00593 Category:
Modalities: , , , ,

3.5

Satisfaction Guarantee

$37.00

View cart

Targeted CE per ARRT’s Discipline, Category, and Subcategory classification:
[Note: Discipline-specific Targeted CE credits may be less than the total Category A credits approved for this course.]

Cardiac-Interventional Radiography: 2.75
Procedures: 2.75
Hemodynamics, Calculations, and Percutaneous Intervention: 2.75

Computed Tomography: 2.75
Procedures: 2.75
Neck and Chest: 2.75

Nuclear Medicine Technology: 0.75
Procedures: 0.75
Other Imaging Procedures: 0.75

Radiography: 0.75
Procedures: 0.75
Thorax and Abdomen Procedures: 0.75

Registered Radiologist Assistant: 2.75
Procedures: 2.75
Thoracic Section: 2.75

Outline

  1. Introduction
  2. Imaging Modalities for Evaluating PHVs
  3. Imaging Evaluation of PHVs
  4. Complications of PHVs
    1. Hemodynamic and Pathophysiologic Consequences
      1. Stenosis
      2. Regurgitataion
      3. Stuck Leaflet
    2. Structural Abnormalities
      1. Prosthesis-Patient Mismatch
      2. Structural Failure
      3. Valve Calcification
      4. Dehiscence
      5. Paravalvular Leak
      6. Infective Endocarditis and Vegetation
      7. Abscess
      8. Pseudoaneurysm
      9. Abnormal Connections
      10. Thrombus
      11. Hypoattenuating Leaflet Thickening
      12. Pannus
      13. Aortic Dissection
  5. Miscellaneous Complications
  6. Imaging Approach to Prosthetic Valves and Dysfunction
  7. Conclusion

Objectives

Upon completion of this course, students will:

  1. state the number of PHV replacements over the past 5 decades
  2. list the characteristics of an ideal PHV
  3. recall the types of currently available PHVs
  4. list the designs of mechanical heart valves
  5. recall what stentless bioprostheses are made from
  6. state the locations for placement of PHVs
  7. list the imaging modalities that play a role in the evaluation of PHVs
  8. name the most common first-line imaging test performed for PHV dysfunction
  9. list the supplemental ultrasound modes used for evaluation of PHVs
  10. describe how magnetic resonance imaging is helpful in the evaluation of PHVs
  11. state the emerging technique that provides flow measurements comparable to echocardiography.
  12. list the assessment methods that should be included in the evaluation of PHVs.
  13. recall how mechanical valves distort at magnetic resonance imaging.
  14. list the common hemodynamic and pathophysiologic consequences associated with PHVs
  15. define regurgitation
  16. describe how PHV regurgitation is quantified at echocardiography
  17. differentiate between TTE and TEE for the evaluation of PHVs
  18. recall the normal opening angle for monoleaflet valves as seen at computed tomography
  19. describe the imaging modalities that allow real-time imaging across many heartbeats
  20. describe the results of prosthesis-patient mismatch
  21. recall the percentage of moderate prosthesis-patient mismatch seen in aortic valve replacements
  22. list the factors that can help minimize prosthesis-patient mismatch
  23. state the common causes of structural failure of bioprosthetic heart valves
  24. recall the ideal imaging modality for demonstrating structural failures of PHVs
  25. describe the most common cause of sterile valvular degeneration in a bioprosthetic valve
  26. explain how valve calcification may appear at echocardiography
  27. describe the most common cause of early reoperation for valvular malfunction
  28. describe where dehiscence mainly occurs in the mitral valve
  29. list the clinical features of dehiscence
  30. list the causes of paravalvular leak
  31. explain the percent of surgeries that result with large paravalvular leaks
  32. describe where paravalvular leaks are seen in the mitral valve
  33. list the complications associated with infective endocarditis
  34. list the factors that place patients at a higher risk for pseudoaneurysm
  35. describe the imaging modality that has 100 percent accuracy in the diagnosis of pseudoaneurysm
  36. list the therapeutic options for pseudoaneurysm
  37. state the most common type of aortocavitary fistula
  38. describe the common location of a Gerbode defect
  39. state the percent of thrombus related to PHVs
  40. list the factors associated with a lower risk of thrombosis
  41. state the most common cause of obstruction of a mechanical PHV
  42. list the possible manifestations associated with obstructive thrombi
  43. note the prevalence of pannus
  44. describe how pannus appears at echocardiography
  45. state the prevalence of aortic dissection