Keywords:
Computer applications, Contrast agents, CT, CT-Angiography, Experimental, Complications, Venous access, Computer Applications-General, Biological effects, Obstruction / Occlusion, Drugs / Reactions
Authors:
M. Alcazar, G. Castrillon, C. Cuervo, L. Arias; Medellin/CO
DOI:
10.1594/ecr2013/C-2635
Purpose
Little has studied the effect of the contrast injection by mechanical central catheters currently found most in vitro studies,
which have shown that speeds as high as 14ml/sec occurs no deterioration of the catheter.
Although in vivo studies have also been developed,
reaching speeds of only 2.5 ml / sec.
Most catheters are not manufacturers provide guidance on the use of power injectors in these catheters (1).
Currently the majority of existing studies in relation to the speed of injection,
are in vitro,
which show that only at speeds as high as 14 ml / sec may be a risk of damage to the catheter and 17 ml / sec rupture this (5-7,9,16),
these rates are much higher than those necessary to conduct a tomographic angiography or contrast.
The in vivo studies using very low injection rates (2 - 2.5 ml / sec),
(10,17),
which are not optimum speeds for some studies,
especially angiotomography.
The purpose of this study is to demonstrate the power injection of contrast medium through central lines at speeds> 3 ml / sec is safe and allows good quality studies.