Imaging of Juvenile Idiopathic Arthritis

A review of the most recent classification system for JIA along with current imaging approaches for peripheral joints and complex structures.

Course ID: Q00386 Category:
Modalities: , ,


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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.]

Magnetic Resonance Imaging: 1.50
Procedures: 1.50
Musculoskeletal: 1.50

Radiography: 1.50
Procedures: 1.50
Extremity Procedures: 1.50

Registered Radiologist Assistant: 3.00
Procedures: 3.00
Musculoskeletal and Endocrine Sections: 3.00

Sonography: 1.50
Procedures: 1.50
Superficial Structures and Other Sonographic Procedures: 1.50


  1. Introduction
  2. JIA Classification
  3. Imaging Evaluation
    1. Radiography
    2. MR Imaging
    3. Ultrasonography
  4. Joint-specific Findings and Recommendations
    1. Peripheral Joints
    2. Cervical Spine
    3. Temporomandibular Joints
    4. Sacroiliac Joints
  5. Conclusion


Upon completion of this course, students will:

  1. be familiar with the criteria that defines juvenile idiopathic arthritis (JIA)
  2. identify which medical imaging modalities play a role in diagnosing JIA
  3. know the various subtypes of JIA and which one is the most common
  4. understand the clinical features of each type of JIA
  5. understand the serologic lab findings that are part of testing for JIA
  6. know which sub type of JIA can potentially be fatal
  7. be able to define the term enthesitis
  8. know which tendon is most commonly affected in patients with ERAbe familiar with the seven ILAR classifications of JIA
  9. now what dactylitis is
  10. understand the principles of ALARA
  11. know the radiographic signs and findings of JIA in late stages of disease
  12. understand the composition of the pediatric skeleton and the limitation of obtaining radiographic detection of early erosive changes in children
  13. be able to explain radiographic signs and findings of JIA in early stages of disease
  14. be able to define orthoroentgenography
  15. understand which sub type of JIA has more of a prevalence of erosion and joint space loss
  16. understand the role of weight-bearing radiography
  17. understand which inflammatory states and conditions are common with JIA
  18. be able to explain the radiographic views for performing cervical spine radiography on patients with JIA
  19. be able to define the term pannus
  20. know which joints are commonly affected by JIA
  21. be able to explain the radiographic views for performing knee radiography on patients with JIA
  22. be familiar with which medical imaging modality is the most sensitive for detecting synovitis in patients with JIA
  23. know which medical imaging modality can detect bone marrow edema in patients with JIA
  24. be able to describe the semi quantitative scoring system and imaging protocol for the assessment of synovitis, bone marrow edema, and bone erosions created by OMERACT
  25. understand how MR is used to assess the bone marrow and erosions in patients with JIA
  26. understand the use of T2 relaxation time cartilage mapping for evaluating patients with JIA
  27. be able to describe the sonographic appearance of normal cartilage
  28. know the frequencies of transducers used for musculoskeletal US on patients with JIA
  29. know which medical imaging modality is more sensitive for detecting joint effusions and synovial thickening
  30. be familiar with standard US nomenclature
  31. understand the uses of color and power Doppler US
  32. understand what benefits color and power Doppler US offer in imaging inflammation in patients with JIA
  33. be able to describe common US artifacts such as anisotropy
  34. know the MR imaging definitions of joint and soft tissue disease in patients with inflammatory arthritis
  35. understand the term rice bodies
  36. know which medical imaging modality can visualize bone marrow edema on patients with JIA
  37. understand the characteristic radiographic findings in the cervical spine of patients with JIA
  38. know the role of each medical imaging modality in evaluating the TMJs in patients with JIA
  39. be familiar with the imaging protocols and radiographic positions used when evaluating the TMJs