P771 3D versus 2D transesophageal echocardiography in the detection of thoracic aorta atherosclerosis stage and prediction of coronary atherosclerosis

Abstract Background 2D transesophageal echocardiography (TEE) was approved as a suitable method for the assessment of thoracic aorta (TA) atherosclerosis. Purpose A comparison between 2D and 3D multiplane TEE for qualitative and quantitative assessment of aortic atheromas and for coronary atherosclerosis prediction. Methods 180 consecutive CAD patients (104 men, 76 women, mean age 62 ± 7 years) were examined. 2D and 3D TEE was performed using Philips IE33 xMatrix system and a X7-2t multiplane probe. 2D study of TA was performed using Live xPlane mode. 3D study of TA was performed using Live 3D and Full Volume modes. Qualitative and quantitative assessment of every atheroma was performed using 2D and 3D modes. The degree of severity and distribution of the TA atheromatosis was evaluated according to the classification of ASE and EACVI (2015): grade 0 – intimal-medial thickness ≤1 mm, 1 – intimal thickness ≤2 mm, 2 – focal or diffuse intimal thickening of 2-3 mm (small atheromas), 3 – atheromas >3–5 mm (no mobile/ulcerated components), 4 - atheromas > 5 mm (no mobile/ulcerated components), 5 - grade 2, 3, or 4 atheromas plus mobile or ulcerated components. After TEE all patients underwent digital coronary angiography and SYNTAX Score was calculated. Findings were presented as M ± SD or n (%). Results 620 atheromas were analysed: 109 in the ascending part, 8 in the arch and 503 in the descending part. On average 3,43 ± 2,15 atheromas per patient were revealed. Atheromas height in 3D was significantly higher (p