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Related Concept Videos

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Radiological investigations are paramount in the diagnosis and management of various pulmonary diseases. Two essential investigations are the Pulmonary Angiogram and the Positron Emission Tomography (PET) Scan.
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Related Experiment Video

Updated: Mar 21, 2026

Quantification of Atherosclerotic Plaque Activity and Vascular Inflammation using [18-F] Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography FDG-PET/CT
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[(18)F]Fluorodeoxyglucose PET in Large Vessel Vasculitis.

Martin A Walter1

  • 1Institute of Nuclear Medicine, University Hospital, Petersgraben 4, Basel CH-4031, Switzerland.

PET Clinics
|May 10, 2016
PubMed
Summary

[(18)F]fluorodeoxyglucose (FDG) PET imaging effectively assesses giant cell arteritis and Takayasu

Area of Science:

  • Nuclear Medicine
  • Radiology
  • Rheumatology

Background:

  • Giant cell arteritis and Takayasu's arteritis are large vessel vasculitides.
  • Accurate diagnosis and assessment of disease activity are crucial.
  • Current imaging modalities have limitations in detecting all affected vascular regions.

Purpose of the Study:

  • To evaluate the efficacy of [(18)F]fluorodeoxyglucose positron emission tomography (FDG-PET) in assessing large vessel vasculitides.
  • To compare FDG-PET with morphologic imaging techniques like MRI.
  • To determine the diagnostic value of FDG-PET in differentiating arteritis from atherosclerosis.

Main Methods:

  • Utilized [(18)F]fluorodeoxyglucose (FDG) PET, a noninvasive metabolic imaging technique.
  • Assessed regional distribution of FDG uptake in patients with giant cell arteritis and Takayasu's arteritis.

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  • Employed visual grading of vascular FDG uptake.

    • Main Results:

    • FDG-PET identified more affected vascular regions compared to MRI in both diseases.
    • Visual grading of FDG uptake demonstrated high specificity in discriminating arteritis from atherosclerosis.
    • High sensitivity was achieved when scanning during the active inflammatory phase.

    Conclusions:

    • [(18)F]FDG-PET is a valuable tool for assessing the activity and extent of giant cell arteritis and Takayasu's arteritis.
    • FDG-PET offers superior vascular region identification compared to MRI.
    • FDG-PET shows potential for improved diagnostic workup of large vessel vasculitides.