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Contribution of 18F-sodium fluoride PET/CT to the study of the carotid atheroma calcification

To assess the calcification process of the carotid plaque by 18F-sodium fluoride PET/CT imaging. A prospectively designed study including 15 patients in whom an atheroma plaque was detected by contrast enhanced CT scan during a neurological work-up was performed. A total of 29 plaques, 19 asymptomat...

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Published in:Revista Española de medicina nuclear e imagen molecular (English ed.) 2013-01, Vol.32 (1), p.22-25
Main Authors: Quirce, R., Martínez-Rodríguez, I., De Arcocha Torres, M., Jiménez-Bonilla, J.F., Banzo, I., Rebollo, M., Revilla, M.A., Palacio, E., Rubio-Vassallo, A., Ortega-Nava, F., Del Castillo-Matos, R., Carril, J.M.
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Language:English
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Summary:To assess the calcification process of the carotid plaque by 18F-sodium fluoride PET/CT imaging. A prospectively designed study including 15 patients in whom an atheroma plaque was detected by contrast enhanced CT scan during a neurological work-up was performed. A total of 29 plaques, 19 asymptomatic and 10 symptomatic, were studied. An 18F-sodium fluoride PET/CT scan was acquired 180min after the i.v. injection of 370 MBq of 18F-sodium fluoride in all the patients. The images obtained were analyzed visually according to the intensity of the uptake. All the plaques showed 18F-sodium fluoride uptake, regardless of the intensity. However, the plaques of the symptomatic group showed a level of 2 or greater intensity while the intensity in 6 of the 19 in the asymptomatic group was lower than 2. Although the study is limited by the small number of cases, the results show the feasibility of the technique to study the calcification of the atheroma using 18F-sodium fluoride and suggest an association between symptomatology and higher uptake of 18F-sodium fluoride. Thus, these results encourage us to continue this study, with the inclusion of a larger number of patients. Estudiar el proceso de calcificación de la placa de ateroma carotideo mediante 18F-fluoruro sódico PET/TAC. Estudio prospectivo en 15 pacientes con ateromatosis carotidea detectada por angio-TAC durante su estudio neurológico. El total de placas de ateroma estudiadas fue de 29, 19 asintomáticas y 10 sintomáticas. En todos los pacientes se adquirió un estudio PET/TAC a los 180min De la administración intravenosa de 370 MBq de 18F-fluoruro sódico. Las imágenes se analizaron visualmente considerando la intensidad de captación. Todas las placas captaron 18F-fluoruro sódico, con independencia de la intensidad. Sin embargo las placas del grupo sintomático mostraron una intensidad de 2 o mayor mientras que 6 de las 19 del grupo asintomático mostraron una intensidad inferior a 2. Aunque el estudio está limitado por el pequeño número de casos, los resultados muestran la aplicabilidad de la técnica al estudio de la calcificación del ateroma con 18F-fluoruro sódico y sugieren una asociación entre la sintomatología y una mayor captación de 18F-fluoruro sódico. Por ello, estos resultados nos animan a continuar este estudio incluyendo un mayor número de pacientes.
ISSN:2253-8089
2253-8089
DOI:10.1016/j.remnie.2012.11.009