Author + information
- Nahoko Katoa,b,
- Kentaro Shibayamaa,b,
- Yu Fukuia,b,
- Makio Muraishia,b,
- Masahiko Noguchia,b,
- Yu Makiharaa,b,
- Hiroshi Okumuraa,b,
- Kotaro Obunaia,b,
- Mitsuaki Isobea,b and
- Hiroyuki Watanabea,b
Background: Echocardiography provides the best valve sizing for transcatheter aortic valve replacement (TAVR) in patients with renal failure. Recently, two different types of commercially available software for semi-automated valve measurement have been developed for 3-dimentional transesophageal echocardiography (3DTEE) through pattern recognition and auto-border detection. Thus, we attempted to assess the accuracy of them in the clinical settings.
Methods: We enrolled 28 aortic stenosis patients planned for TAVR, who underwent both multi detector computed tomography (MDCT) and 3DTEE. We measured aortic annulus area in these 3D dataset by eSieValves (Siemens Medical Solutions) and auto AVQ (GE healthcare), and compared them with MDCT measurements.
Results: The correlation between 3DTEE measurements by eSieValves and MDCT measurements were r=0.91 in semi-automated method and r=0.88 in manual method, and those by auto AVQ were r=0.92 in semi-automated method and r=0.87 in manual method. Semi-automated measurements had narrower limits of agreement (LOA) than manual measurements with both software (-52.5 to 68.5 mm2 by semi-automated vs. −49.7 to 98.3 mm2 by manual for eSieValves, −60.7 to 49.6 mm2 by semi-automated vs. −60.8 to 65.1 mm2 by manual for auto AVQ, Figure).
Conclusions: Newly developed automated 3DTEE software provides more accurate measurement than manual method for aortic valve sizing. These new approach could be a novel noninvasive and objective solution for valve sizing.
Poster Hall, Hall C
Sunday, March 19, 2017, 9:45 a.m.-10:30 a.m.
Session Title: Insights From Echocardiography Use
Abstract Category: 28. Non Invasive Imaging: Echo
Presentation Number: 1291-223
- 2017 American College of Cardiology Foundation