Utilidad de la angiografía rotacional de doble eje frente a la convencional en la práctica clínica

Abstract

Introduction and objective. Coronary angiography is the gold standard technique for studying coronary artery disease; however, it is necessary to find methods that reduce the amount of contrast and radiation administered in conventional angiography. Dualaxis rotational angiography allows the visualization from different angles of each coronary artery with a single injection of contrast, versus the five injections needed in the conventional technique. The aim of this study is to compare the rotational technique with the conventional one by analyzing the amount of contrast administered, the radiation dosage, the duration of the procedure and the hospital stay. Material and methods. Observational, analytical, longitudinal and retrospective study of a cohort of 145 consecutive patients undergoing diagnostic coronary angiography between 01/01/2015 and 30/03/2016 at our centre. Results. 42 (29.0%) subjects underwent dual-axis rotational angiography. Statistically significant differences were objectified in the volume of contrast administered (p < 0.01) and the duration of the procedure (p = 0.014) in favour of rotational angiography. There were no significant differences either in the dosage of radiation administered or in the average stay. In the subgroup of subjects with less than 3 additional projections, differences were found in all parameters, with the exception of the average stay. Conclusions. Dual-axis rotational angiography allows to reduce significantly the dosage of contrast and the duration of the procedure with respect to conventional angiography. In the subgroup of subjects with less than 3 projections, a reduction of the dosage of radiation was also found.