Vessel involvement in giant cell arteritis: an imaging approach

Area of Science:

• Rheumatology and Immunology
• Vascular Medicine

Background:

• Vasculitis encompasses inflammatory conditions affecting blood vessels, categorized by vessel size.
• Large vessel vasculitis (LVV) includes Takayasu arteritis, giant cell arteritis (GCA), isolated aortitis, and chronic periaortitis.
• GCA is characterized by giant cells in arterial walls, historically diagnosed via temporal artery biopsy.

Purpose of the Study:

• To review the diagnostic evolution of GCA, focusing on the impact of advanced imaging.
• To highlight the role of imaging in assessing extracranial involvement and vascular damage in GCA.
• To discuss the utility of imaging in guiding GCA treatment evaluation.

Main Methods:

• Review of literature on GCA diagnosis and management.
• Analysis of the impact of new imaging modalities on GCA diagnosis.
• Comparison of traditional biopsy methods with modern imaging techniques.

Main Results:

• Recent imaging techniques demonstrate significant extracranial GCA involvement, challenging the sole reliance on temporal artery biopsy.
• Imaging is crucial for identifying the extent of vascular damage in GCA patients.
• Imaging plays a vital role in monitoring treatment response and effectiveness in GCA.

Conclusions:

• The diagnostic paradigm for GCA is shifting due to advancements in imaging technology.
• Imaging offers a comprehensive assessment of GCA, including extracranial manifestations and vascular damage.
• Imaging is integral to modern GCA management, aiding diagnosis and treatment evaluation.