Usefulness of Low Dose Oral Contrast Media in 18F-FDG PET/CT / 핵의학분자영상
Nuclear Medicine and Molecular Imaging
;
: 257-262, 2006.
Article
Dans Anglais
| WPRIM
| ID: wpr-37108
ABSTRACT
PURPOSE:
The standard protocol using large volume of oral contrast media may cause gastrointestinal discomfort and contrast-related artifacts in PET/CT. The aim of this study was to evaluate the usefulness of low dose oral contrast in 18F-FDG PET/CT. MATERIALS ANDMETHODS:
We retrospectively reviewed the whole-body PET/CT images in a total of 435 patients. About 200 ml of oral contrast agent (barium sulfate) was administered immediately before injection of 18F-FDG. The FDG uptake of intestines was analyzed by visual and semi-quantitative method on transaxial, coronal and saggital planes.RESULTS:
Seventy (16%, 113 sites) of 435 images showed high FDG uptake (peak SUV > 4); 50 (74%, 84 sites) with diffuse and 20 (26%, 29 sites) with focal uptake. The most commonly delivered site of oral contrast media was small bowel (n=27, 39%). On PET/CT images, FDG uptake coexisted with oral contrast media in 26 patients (54%, 38 sites) with diffuse pattern and 9 (45%, 9 sites) with focal pattern, and by sites, those were 38 (45%) and 9 (31%), respectively. In small bowel regions, the proportion of coexistence reached as high as 61% (29/47 sites). A visual analysis of available non-attenuation corrected PET images of 27 matched regions revealed no contrast-related artifact.CONCLUSION:
We concluded that the application of low dose contrast media could be helpful in the evaluation of abdominal uptake in the FDG PET/CT image.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Études rétrospectives
/
Artéfacts
/
Produits de contraste
/
Fluorodésoxyglucose F18
/
Tomographie par émission de positons couplée à la tomodensitométrie
/
Intestins
Type d'étude:
Étude observationnelle
Limites du sujet:
Humains
langue:
Anglais
Texte intégral:
Nuclear Medicine and Molecular Imaging
Année:
2006
Type:
Article
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