CT of deep venous thrombosis and pulmonary embolus: does iso-osmolar contrast agent improve vascular opacification?
Iodixanol caused a modest but statistically significant improvement in venous attenuation and a decrease in arterial attenuation. The diagnostic importance of this small increase in venous attenuation is not clear.
MB is characterised by enhanced WSR and impairment in endothelium-dependent vasorelaxation. These functional alterations may add to the severity of structural lumen compression and thus to the clinical presentation of this congenital abnormality.