scholarly journals Planimetric and continuity equation assessment of aortic valve area: Head to head comparison between cardiac magnetic resonance and echocardiography

2007 ◽  
Vol 26 (6) ◽  
pp. 1436-1443 ◽  
Author(s):  
Anne-Catherine Pouleur ◽  
Jean-Benoît le Polain de Waroux ◽  
Agnès Pasquet ◽  
David Vancraeynest ◽  
Jean-Louis J. Vanoverschelde ◽  
...  
Keyword(s):  
Cardiac Magnetic Resonance ◽  
Magnetic Resonance ◽  
Aortic Valve ◽  
Continuity Equation ◽  
Aortic Valve Area ◽  
Valve Area

scholarly journals The evaluation of annuloplasty in bicuspid aortic valve repair using cardiac magnetic resonance

2020 ◽  
Author(s):  
Marek Jasinski ◽  
Karol Miszalski-Jamka ◽  
Radoslaw Gocol ◽  
Izabella Wenzel-Jasinska ◽  
Grzegorz Bielicki ◽  
...  
Keyword(s):  
Cardiac Magnetic Resonance ◽  
Magnetic Resonance ◽  
Aortic Valve ◽  
Bicuspid Aortic Valve ◽  
Left Ventricular ◽  
Left Ventricular Ejection ◽  
Reverse Remodeling ◽  
Aortic Valve Area ◽  
Valve Repair ◽  
Valve Area

Abstract Background: The incompetent bicuspid aortic valve (BAV) can be replaced or repaired using various surgical techniques. This study sought to assess the efficacy of external annuloplasty and postoperative reverse remodeling using cardiac magnetic resonance (CMR) and compare the mid-term results of external and subcommissural annuloplasty. Methods: Out of a total of 200 BAV repair performed between 2004 and 2018, 21 consecutive patients (median age 54 years) with regurgitation requiring valve repair with annuloplasty without concomitant aortic root surgery were prospectively referred for CMR and transthoracic echocardiography (TTE) one year after the operation. Two aortic annulus stabilization techniques were used: external, circumferential annuloplasty (EA), and subcommissural annuloplasty (SCA). Results: 11 patients received EA and 10 patients were treated using SCA. There was no in-hospital mortality and all patients survived the follow-up period. CMR showed strong correlation between postoperative aortic recurrent regurgitant fraction and left ventricular end-diastolic volume (r=0.62; p=0.003) as well as left ventricular ejection fraction (r=-0.53; p=0.01). Patients treated with EA as compared with SCA had larger anatomic aortic valve area measured by CMR (3.5cm2 (2.5; 4.0) vs. 2.5cm2 (2.0; 3.4); p=0.04). In both EA and SCA group, aortic valve area below 3.5cm2 correlated with no regurgitation recurrency. EA (vs. SCA) was associated with lower peak transvalvular aortic gradients (10mmHg (6; 17) vs. 21mmHg (15; 27); p=0.04). Conclusions: The repair of the bicuspid aortic valve provides significant mid-term postoperative reverse remodeling, provided no recurrent regurgitation and durable reduction annuloplasty can be achieved. External, circumferential annuloplasty is associated with better hemodynamics compared to subcommissural annuloplasty.

scholarly journals The evaluation of annuloplasty in bicuspid aortic valve repair using cardiac magnetic resonance

2020 ◽  
Author(s):  
Marek Jasinski ◽  
Karol Miszalski-Jamka ◽  
Kinga Kosiorowska ◽  
Radoslaw Gocol ◽  
Izabella Wenzel-Jasinska ◽  
...  
Keyword(s):  
Cardiac Magnetic Resonance ◽  
Magnetic Resonance ◽  
Aortic Valve ◽  
Bicuspid Aortic Valve ◽  
Left Ventricular ◽  
Left Ventricular Ejection ◽  
Aortic Valve Area ◽  
Valve Repair ◽  
Reverse Remodelling ◽  
Valve Area

Abstract Background: The incompetent bicuspid aortic valve (BAV) can be replaced or repaired using various surgical techniques. This study sought to assess the efficacy of external annuloplasty and postoperative reverse remodelling using cardiac magnetic resonance (CMR) and compare the results of external and subcommissural annuloplasty. Methods: Out of a total of 200 BAV repair performed between 2004 and 2018, 21 consecutive patients (median age 54 years) with regurgitation requiring valve repair with annuloplasty without concomitant aortic root surgery were prospectively referred for CMR and transthoracic echocardiography (TTE) one year after the operation. Two aortic annulus stabilization techniques were used: external, circumferential annuloplasty (EA), and subcommissural annuloplasty (SCA). Results: 11 patients received EA and 10 patients were treated using SCA. There was no in-hospital mortality and all patients survived the follow-up period (median: 12.6 months (first quartile: 6.6; third quartile: 14.1). CMR showed strong correlation between postoperative aortic recurrent regurgitant fraction and left ventricular end-diastolic volume (r = 0.62; p = 0.003) as well as left ventricular ejection fraction (r = -0.53; p = 0.01). Patients treated with EA as compared with SCA had larger anatomic aortic valve area measured by CMR (3.5 (2.5; 4.0) vs. 2.5 cm2 (2.0; 3.4); p = 0.04). In both EA and SCA group, aortic valve area below 3.5 cm2 correlated with no regurgitation recurrency. EA (vs. SCA) was associated with lower peak transvalvular aortic gradients (10 (6; 17) vs. 21mmHg (15; 27); p = 0.04). Conclusions: The repair of the bicuspid aortic valve provides significant postoperative reverse remodelling, provided no recurrent regurgitation and durable reduction annuloplasty can be achieved. EA is associated with lower transvalvular gradients and higher aortic valve area assessed by CMR, compared to SCA.

scholarly journals 29 Comparison of cardiac magnetic resonance and echocardiography for the assessment of aortic valve area in aortic stenosis

2015 ◽  
Vol 7 (3) ◽  
pp. 245
Author(s):  
Dania Mohty ◽  
Marc-Antoine Isorni ◽  
Stéphan Chassaing ◽  
Arnaud Maudière ◽  
Christophe Barbey ◽  
...  
Keyword(s):  
Cardiac Magnetic Resonance ◽  
Magnetic Resonance ◽  
Aortic Valve ◽  
Aortic Stenosis ◽  
Aortic Valve Area ◽  
Valve Area

scholarly journals The evaluation of annuloplasty in bicuspid aortic valve repair using cardiac magnetic resonance

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Marek J. Jasinski ◽  
Karol Miszalski-Jamka ◽  
Kinga Kosiorowska ◽  
Radoslaw Gocol ◽  
Izabella Wenzel-Jasinska ◽  
...  
Keyword(s):  
Cardiac Magnetic Resonance ◽  
Magnetic Resonance ◽  
Aortic Valve ◽  
Bicuspid Aortic Valve ◽  
Left Ventricular ◽  
Left Ventricular Ejection ◽  
Aortic Valve Area ◽  
Valve Repair ◽  
Reverse Remodelling ◽  
Valve Area

Abstract Background The incompetent bicuspid aortic valve (BAV) can be replaced or repaired using various surgical techniques. This study sought to assess the efficacy of external annuloplasty and postoperative reverse remodelling using cardiac magnetic resonance (CMR) and compare the results of external and subcommissural annuloplasty. Methods Out of a total of 200 BAV repair performed between 2004 and 2018, 21 consecutive patients (median age 54 years) with regurgitation requiring valve repair with annuloplasty without concomitant aortic root surgery were prospectively referred for CMR and transthoracic echocardiography (TTE) one year after the operation. Two aortic annulus stabilization techniques were used: external, circumferential annuloplasty (EA), and subcommissural annuloplasty (SCA). Results 11 patients received EA and 10 patients were treated using SCA. There was no in-hospital mortality and all patients survived the follow-up period (median: 12.6 months (first quartile: 6.6; third quartile: 14.1). CMR showed strong correlation between postoperative aortic recurrent regurgitant fraction and left ventricular end-diastolic volume (r = 0.62; p = 0.003) as well as left ventricular ejection fraction (r = -0.53; p = 0.01). Patients treated with EA as compared with SCA had larger anatomic aortic valve area measured by CMR (3.5 (2.5; 4.0) vs. 2.5 cm2 (2.0; 3.4); p = 0.04). In both EA and SCA group, aortic valve area below 3.5 cm2 correlated with no regurgitation recurrency. EA (vs. SCA) was associated with lower peak transvalvular aortic gradients (10 (6; 17) vs. 21 mmHg (15; 27); p = 0.04). Conclusions The repair of the bicuspid aortic valve provides significant postoperative reverse remodelling, provided no recurrent regurgitation and durable reduction annuloplasty can be achieved. EA is associated with lower transvalvular gradients and higher aortic valve area assessed by CMR, compared to SCA.

scholarly journals Invasive validation of a novel approach to determine aortic valve area with phase-contrast cardiac magnetic resonance imaging

2021 ◽  
Vol 22 (Supplement_2) ◽  
Author(s):  
F Troger ◽  
I Lechner ◽  
M Reindl ◽  
C Tiller ◽  
M Holzknecht ◽  
...  
Keyword(s):  
Cardiac Magnetic Resonance ◽  
Magnetic Resonance ◽  
Aortic Valve ◽  
Phase Contrast ◽  
Low Flow ◽  
Aortic Valve Area ◽  
Novel Approach ◽  
Valve Area ◽  
Flow States

Abstract Funding Acknowledgements Type of funding sources: Public grant(s) – National budget only. Main funding source(s): Austrian Society of Cardiology Background. Echocardiography is considered the standard method for screening and diagnosing aortic valve stenosis. However, inaccuracies in the determination of stroke-volumes by the continuity equation might particularly make the evaluation of patients with low-flow states difficult. Phase-contrast cardiac magnetic resonance (PC-CMR) is a promising tool in overcoming these limitations by the simultaneous determination of flow volumes and velocities across the stenotic valve. Purpose The aim of this study is to validate a novel approach based on PC-CMR against the invasive determination of the aortic valve area (AVA). Methods. PC-CMR was performed in 50 patients with moderate or severe AS (n = 52; age 72 years [interquartile range (IQR) 66 - 78], 38% of patients with low-flow states). All of them were referred to invasive evaluation of aortic stenosis by cardiac catheterization. Additionally, transthoracic echocardiography (TTE) was performed. Aortic valve area (AVA) was determined by PC-CMR (AVAPC-CMR) via plotting momentary flow across the valve against momentary flow velocity. AVAPC-CMR at different time points over the entire cardiac cycle was compared to invasively determined AVA, calculated according to the Gorlin-formula. Stroke volumes (SV) were determined by the Fick-principle, pressure gradients according to the modified Bernoulli-equation. Results. Mean AVA during the whole systolic phase showed a good correlation (r: 0.544, p < 0.001) with invasive AVA with a small bias (AVACMR: 0.78 cm², IQR: [0.60-0.96] versus AVAINVASIVE: 0.70 cm², IQR: [0.52-0.87], bias: 0.08 cm², p = 0.017). Intermethodical correlation and bias of AVA as measured by TTE (AVATTE) and AVAINVASIVE were similar to AVAPC-CMR (AVATTE: 0.81 cm²; IQR: [0.64-0.96] versus AVAINVASIVE: 0.70 cm², IQR: [0.52-0.87] r: 0.580, p < 0.001, bias 0.11 cm², p < 0.001). SV by PC-CMR showed a good correlation with Cine-CMR with no significant bias (r: 0.730, p < 0.001; SVPC-CMR: 86 ± 31 ml; SVCine: 85 ± 19 ml). Maximum gradients determined by PC‑CMR were 65 ± 2 9mmHg and showed a good inverse correlation with AVAPC-CMR (r: ‑0.371; p = 0.008). Conclusion. PC-CMR with continuous determination of flow volumes and flow velocities is able to determine AVA in patients with severe aortic stenosis with a tendency to overestimate AVA compared to invasively determined AVA.

Assessment of Aortic Valve Area in Aortic Stenosis Using Cardiac Magnetic Resonance Tomography: Comparison with Echocardiography

Cardiology ◽  
2007 ◽  
Vol 109 (2) ◽  
pp. 126-134 ◽  
Author(s):  
Nasser M. Malyar ◽  
Thomas Schlosser ◽  
Jörg Barkhausen ◽  
Achim Gutersohn ◽  
Thomas Buck ◽  
...  
Keyword(s):  
Cardiac Magnetic Resonance ◽  
Magnetic Resonance ◽  
Aortic Valve ◽  
Aortic Stenosis ◽  
Magnetic Resonance Tomography ◽  
Aortic Valve Area ◽  
Cardiac Magnetic Resonance Tomography ◽  
Valve Area
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