Published ahead of print on March 20, 2008
doi: 10.3174/ajnr.A1013
[18F] Fluorodeoxyglucose Positron-Emission Tomography-CT Imaging of Carotidynia
R.R. Amaravadia,
S.C. Behra,
P.D. Kousoubrisa and
S. Rajaa
a From the Lahey Clinic Medical Center, Department of Radiology, Burlington, Mass

View larger version (77K):
[in this window]
[in a new window]
|
Fig 1. Pregadolinium T1-weighted (A) and postgadolinium fat-saturated T1-weighted (B) MR images demonstrate focal enhancing amorphous soft tissue around the right carotid bifurcation (arrow).
| |

View larger version (66K):
[in this window]
[in a new window]
|
Fig 2. A, Axial CTA neck demonstrates soft tissue attenuation surrounding the right carotid artery bifurcation (arrow) without luminal compromise. B, A 3D volume-rendered CTA demonstrates no evidence for stenosis or dissection at the right carotid artery bifurcation.
| |

View larger version (47K):
[in this window]
[in a new window]
|
Fig 3. Coronal 18F-FDG PET (A) and corresponding 3D volume-rendered PET-CT (B) fusion images demonstrate moderately increased FDG activity confined to the right carotid bifurcation. Maximum standardized uptake value is 6.2 compared with 3.1 on the contralateral carotid artery. No other abnormal vascular FDG activity is identified to suggest a systemic vasculitis.
| |