What is the role of ultrasonography in the diagnosis of juvenile idiopathic arthritis (JIA)?

Updated: Jul 25, 2019
  • Author: David D Sherry, MD; Chief Editor: Lawrence K Jung, MD  more...
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On ultrasonograms, inflamed synovium can appear as an area of mixed echogenicity lining the articular cartilage; the vascularity of the synovium can be assessed with Doppler flow studies. Serial measurements of synovial thickness and effusion volumes have been used to monitor disease progression. [29] It can be helpful to evaluate joints that are difficult to palpate, such as the hip and shoulder.

Some researchers claim that ultrasonography is more sensitive than plain radiography in the detection of cartilage erosions and effusions. Ultrasound has the advantages of no exposure to ionizing radiation; it can be done in the clinic is an awake, moving child; and it can help guide injections.

Go to Imaging in Juvenile Rheumatoid Arthritis for complete information on this topic.

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