Fig. 1From: Effect of different injection rates and doses of contrast medium on the image quality of computed tomographic angiography in African grey parrots (Psittacus erithacus)Boxplot of average attenuation (HU) within six major arteries. Vascular enhancement in the groups administered 740 mg of iodine/bird is significantly higher than that of the lowest dose groups. Attenuations with identical doses but different injection rates are nearly identical at all levels. Statistical outliers that are > 1.5-times the interquartile range are represented by × Back to article page