Karapetyan N.G
Bakuolev Scientific center for cardiovascular surgery, Russia
Title: Rotational angiography and 3D modeling in diagnostics and treatment of CHD
Biography
Biography: Karapetyan N.G
Abstract
3D rotational angiocardiography (3D RA) is a relatively new method in the treatment of CHD, number of publications is not very large, and there are still many unresolved issues.
Aim: The aim of the study was to evaluate the capability of 3D RA using in diagnosis and treatment of congenital heart disease, and its comparison with the standard angiocardiography.
Material & methods: From 2012 to 2015, in 150 patients with various CHD, 169 3D RA were performed and compared with standard angiocardiography. Patients were divided into 6 groups: Pulmonary artery (n=41), right ventricle outflow tract (n=50), great veins (n​=24), aorta (n=21), abnormal communication between major vessels (n=16), the left ventricular outflow tract (n=17). The criteria for the comparative analysis have been visualization quality, additional information, the radiation dose, the amount of contrast agent during the study and study time.
Results: The study resulted that 3D RA had visualization quality better than standard angiocardiography in patients with peripheraland bifurcation PA stenosis; in patients with communications between the main arteries; in patients with aneurysm of the right ventricular outflow tract, in patients with obstruction of the left ventricle outflow tracts and in patients with great veins examination. Radiation dose during 3D RA was 503.4±350 cGy/cm2, while during standard angiocardiography – 820.8±400 cGy/cm2 (p=0.036). Study duration was 14.1±10 minutes using 3D RA and 15.1±9 minutes using standard angiocardiography. The volume of used contrast agent was 49.9±35 mL in 3D RA group and 47.8±38 mL in standard angiocardiography, without significant difference. 3D RA contributed additional important information due to possibility of achieving three-dimensional models and obtain unlimited angulations.
Conclusion: 3D RA is high-quality and safe method of imaging of the heart and vessels in patients with a various CHD compared with standard angiocardiography. Using 3D RA often reveals important additional information about the anatomy area of examination.