title: Effect of a saline chaser for contrast enhancement of computed tomographic angiography in cattle.
abstract: Computed tomographic angiography was performed on nine normal Holstein calves in a crossover method to investigate the effect of a saline chaser for enhancement of the maxillary arteries and dorsal sagittal sinus. One group was administered a contrast injection (600 mg iodine/kg at 4 ml/s) followed by 50 ml of a saline chaser at the same rate as the contrast material. The second group was administered a contrast injection without a saline chaser. Addition of the saline chaser to the contrast material resulted in a higher peak attenuation in the maxillary artery (244.45 +/- 36.19 v 202.20 +/- 27.07, P<0.05) and dorsal sagittal sinus (241.2 +/- 31.51 v 198.88 +/- 21.09, P<0.05). These results indicate that a contrast injection followed by saline chaser increased uptake in contrast-enhanced CT.
authors.affiliation: Department of Clinical Veterinary Science, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8555, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Lee
authors.forename: M
authors.initials: M
authors.lastname: Kishimoto
authors.forename: J
authors.initials: J
authors.lastname: Shimizu
authors.forename: T
authors.initials: T
authors.lastname: Iwasaki
authors.forename: Y
authors.initials: Y
authors.lastname: Miyake
authors.forename: K
authors.initials: K
authors.lastname: Yamada
mesh_terms: D000792:Angiography / Q000379:methods / Q000662:veterinary*; D000818:Animals; D019540:Area Under Curve; D002417:Cattle; D003287:Contrast Media; D003392:Cranial Sinuses / Q000000981:diagnostic imaging; D018592:Cross-Over Studies; D007267:Injections / Q000662:veterinary; D008438:Maxillary Artery / Q000000981:diagnostic imaging; D012965:Sodium Chloride / Q000008:administration & dosage; D014057:Tomography, X-Ray Computed / Q000379:methods / Q000662:veterinary*
chemical_list: D003287:Contrast Media; D012965:Sodium Chloride