Abbreviated and Ultrafast Breast MRI in Clinical Practice

Abbreviating the MRI exam may make it more available to a larger audience and expand the role of MRI in breast cancer screening. Current techniques, diagnostic criteria, advantages and pitfalls are presented.

Course ID: Q00662 Category:
Modalities: ,

2.5

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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.]

Breast Sonography: 1.00
Patient Care: 1.00
Patient Interactions and Management: 1.00

Mammography: 1.00
Procedures: 1.00
Mammographic Positioning, Special Needs, and Imaging Procedures: 1.00

Magnetic Resonance Imaging: 2.00
Image Production: 0.50
Sequence Parameters and Options: 0.25
Data Acquisition, Processing, and Storage: 0.25
Procedures: 1.50
Body: 1.50

Registered Radiologist Assistant: 1.00
Procedures: 1.00
Thoracic Section: 1.00

Radiation Therapy: 1.00
Patient Care: 1.00
Patient and Medical Record Management: 1.00

Outline

  1. Introduction
  2. The Basics
    1. Structural versus Functional Imaging
    2. Basic Terminology
  3. Abridged MRI Techniques
    1. Abbreviated MRI
    2. Ultrafast MRI
    3. Newer Terminology
    4. Existing Challenge and Potential Solution
  4. Abridged MRI: Advantages
    1. Lesion Conspicuity
    2. Functional Depiction
    3. Discriminating Power
  5. Abridged MRI: Disadvantages
    1. Spatial Resolution
    2. Loss of Sensitivity
    3. Benign Cofounders
  6. Clinical Indications
    1. High-Risk Screening
    2. Average-Risk Screening
    3. Caveats
  7. Other Considerations
  8. Conclusion

Objectives

Upon completion of this course, students will:

  1. know how abbreviated and ultrafast breast MRI compare to full protocol contrast-enhanced breast MRI
  2. define functional imaging
  3. understand the difference between structural and functional imaging
  4. realize what causes limits to mammography’s sensitivity
  5. know the type of cancer dynamic contrast-enhanced MRI tends to identify
  6. state the attributes of ultrafast MRI
  7. define spatial resolution
  8. define temporal resolution
  9. recognize tumor enhancement characteristics
  10. realize characteristics of abbreviated breast MRI
  11. identify approaches used to attain high temporal resolution
  12. compare enhancement characteristics of malignant and benign breast lesions
  13. pinpoint a limitation of full protocol dynamic contrast-enhanced breast MRI
  14. know what early reader studies have shown regarding ultrafast breast MRI
  15. recognize the tradeoffs in ultrafast MRI
  16. recall the type of postprocessed images from abridged MRI that allow for quick interpretation while maintaining a high negative predictive value
  17. realize what you don’t see by eliminating the later postcontrast sequences in abbreviated MRI
  18. know the principles of contrast-enhanced MRI and the functional depiction of tumor vascularity
  19. define neoangiogenesis
  20. know what type of breast imaging evaluation ultrafast MRI is best suited to
  21. know statistics of the high risk population for breast cancer
  22. recall recommended breast exams for average breast cancer risk individuals
  23. define diffusion-weighted MRI