Usefulness of a saline chaser to reduce contrast material dose in abdominal CT of normal dogs
Journal of Veterinary Science
;
: e38-2019.
Artigo
em Inglês
| WPRIM
| ID: wpr-758927
ABSTRACT
Use of a saline chaser has been reported to allow reduction of contrast dose and artifacts during computed tomography (CT) examination in humans. This study assesses the extent of contrast dose by using a saline chaser in abdominal CT scans of normal dogs. Five beagles underwent abdominal CT scans. Three protocols were applied 600 mg I/kg iohexol without saline chaser (protocol 1), 30% lower dose of iohexol (420 mg I/kg) followed by a 10 mL saline chaser (protocol 2), and 40% lower dose of iohexol (360 mg I/kg) followed by a 10 mL saline chaser (protocol 3). Attenuation values were obtained from aorta, portal vein, and liver parenchyma. The maximum enhancement values (MEVs) in protocol 2 were significantly higher than those in protocols 1 and 3 in the aorta; no difference was seen in the portal vein in all protocols. The liver parenchymal MEVs in protocols 1 and 2 were significantly higher than those obtained in protocol 3. In this study, the use of a saline chaser and a reduced dose of contrast material did not affect vessel enhancement. In conclusion, use of a saline chaser for abdominal CT of dogs is recommended because it allows a 30% reduction of contrast dose without decreasing vascular and hepatic parenchymal enhancement.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Aorta
/
Veia Porta
/
Iohexol
/
Tomografia Computadorizada por Raios X
/
Artefatos
/
Abdome
/
Fígado
Limite:
Animais
/
Humanos
Idioma:
Inglês
Revista:
Journal of Veterinary Science
Ano de publicação:
2019
Tipo de documento:
Artigo
Similares
MEDLINE
...
LILACS
LIS