Author + information
- Tomaz Podlesnikar,
- Edgard Prihadi,
- Philippe Rosendael,
- Elise Vollema,
- Frank Kley,
- Nina Ajmone Marsan,
- Zlatko Fras,
- Jeroen Bax and
- Victoria Delgado
Background: Accurate aortic annulus (AA) sizing is key for selection of appropriate transcatheter aortic valve replacement (TAVR) prosthesis size. Head-to-head comparison of novel automated 3-dimensional transesophageal echocardiography (3DTEE) algorithm and multidetector row computed tomography (MDCT) was used to evaluate the impact of aortic valve calcification (AVC) burden on agreement between AA size measurement and the choice of TAVR prosthesis size.
Methods: A total of 65 patients with severe aortic stenosis undergoing TAVR were evaluated with MDCT and 3DTEE. The AA circumference and AA area were measured. The prosthesis size was chosen on the basis of manufacturers sizing charts. AVC was assessed with computed tomography calcium score and quantified according to Agatston score.
Results: Overall, automated 3DTEE analysis slightly underestimated the AA dimensions compared with MDCT (Figure 1A). 3DTEE AA dimensions of patients with lower AVC burden (< 3300 arbitrary units) showed better agreement with MDCT measured compared to patients with more severe AVC (> 3300 arbitrary units) [Figure 1B-C]. 3DTEE and MDCT measurements led to selection of same TAVR prosthesis size in 86% of patients. For 8 patients (3 of them in the low AVC burden group) 3DTEE data suggested a smaller prosthesis size and for 1 patient in the high AVC burden group a larger prosthesis size, as compared with MDCT.
Conclusions: New automated 3DTEE AA analysis shows good agreement with the MDCT, particularly in patients with low AVC burden.
Poster Hall, Hall C
Friday, March 17, 2017, 10:00 a.m.-10:45 a.m.
Session Title: Interventional Cardiology: TAVR 1
Abstract Category: 17. Interventional Cardiology: Aortic Valve Disease
Presentation Number: 1114-153
- 2017 American College of Cardiology Foundation