![Quantification of Atherosclerotic Plaque Activity and Vascular Inflammation using [18-F] Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography FDG-PET/CT](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F3777.jpg&w=3840&q=50)
Role and potential of 18F-fluorodeoxyglucose-positron emission tomography-computed tomography in large-vessel
Javier Collada-Carrasco1, Nieves Gómez-León1, Valentina Castillo-Morales2
1Department of Radiology, Hospital Universitario de La Princesa, Autonomous University of Madrid, IIS-Princesa, Madrid, Spain.
Insights
18F-fluorodeoxyglucose positron emission tomography-computed tomography (18F-FDG-PET-CT) aids in diagnosing and monitoring large-vessel vasculitis (LVV). This imaging technique visualizes vessel inflammation, assesses disease activity, and guides personalized treatment strategies for better patient outcomes.
Area of Science:
- Vascular Medicine
- Nuclear Medicine
- Radiology
Background:
- Large-vessel vasculitis (LVV) encompasses conditions like giant cell arteritis (GCA), polymyalgia rheumatica (PMR), and Takayasu's arteritis (TAK).
- These diseases present diagnostic and management challenges due to varied clinical symptoms and potential severe complications.
- Accurate diagnosis and monitoring are crucial for effective patient management.
Purpose of the Study:
- To highlight the role of 18F-fluorodeoxyglucose positron emission tomography-computed tomography (18F-FDG-PET-CT) in diagnosing and managing LVV.
- To explore the utility of 18F-FDG-PET-CT in assessing disease activity, extent, and treatment response.
- To emphasize the value of 18F-FDG-PET-CT in guiding treatment decisions and improving patient outcomes.
Main Methods:
- Utilizing 18F-FDG-PET-CT to visualize inflammation in the aorta and its major branches.
- Assessing disease activity and extent through standardized uptake values (SUVs) and lesion distribution.
- Correlating imaging findings with clinical presentation and treatment response.
Main Results:
- 18F-FDG-PET-CT effectively visualizes vessel wall inflammation in LVV, aiding in diagnosis and subtype differentiation.
- The imaging modality helps assess disease distribution, including extracranial involvement in GCA and PMR phenotypes.
- Reductions in FDG uptake on PET-CT correlate with improved disease control and treatment response.
Conclusions:
- 18F-FDG-PET-CT is a valuable tool for the diagnosis, monitoring, and management of large-vessel vasculitis.
- It provides crucial insights into disease activity, extent, and response to therapy, facilitating personalized treatment strategies.
- Future research should refine PET-CT techniques and explore novel imaging modalities like PET-MRI for enhanced diagnostic accuracy in LVV.
Abstract:
Large-vessel vasculitis (LVV) is a group of diseases characterized by inflammation of the aorta and its main branches, which includes giant cell arteritis (GCA), polymyalgia rheumatica (PMR), and Takayasu's arteritis (TAK). These conditions pose significant diagnostic and management challenges due to their diverse clinical presentations and potential for serious complications. 18F-fluorodeoxyglucose positron emission tomography-computed tomography (18F-FDG-PET-CT) has emerged as a valuable imaging modality for the diagnosis and monitoring of LVV, offering insights into disease activity, extent, and response to treatment. 18F-FDG-PET-CT plays a crucial role in the diagnosis and management of LVV by allowing to visualize vessel involvement, assess disease activity, and guide treatment decisions. Studies have demonstrated the utility of 18F-FDG-PET-CT in distinguishing between LVV subtypes, evaluating disease distribution, and detecting extracranial involvement in patients with cranial GCA or PMR phenotypes. Additionally, 18F-FDG-PET-CT has shown promising utility in predicting clinical outcomes and assessing treatment response, based on the correlation between reductions in FDG uptake and improved disease control. Future research should focus on further refining PET-CT techniques, exploring their utility in monitoring treatment response, and investigating novel imaging modalities such as PET-MRI for enhanced diagnostic accuracy in LVV. Overall, 18F-FDG-PET-CT represents a valuable tool in the multidisciplinary management of LVV, facilitating timely diagnosis and personalized treatment strategies to improve patient outcomes.
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