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Yagi N, Hasegawa H, Kuwajima K, Ogawa M, Yamane T, Shiota T. Indexed aortic valve area using multimodality imaging for assessing the severity of bicuspid aortic stenosis. Int J Cardiol 2024; 414:132416. [PMID: 39098616 DOI: 10.1016/j.ijcard.2024.132416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 07/26/2024] [Accepted: 08/01/2024] [Indexed: 08/06/2024]
Abstract
BACKGROUND The impact of various imaging modalities on discordance/concordance between indexed aortic valve area (iAVA) and catheterization-derived mean transaortic pressure gradient (mPGcath) is unclear in patients with bicuspid aortic valve (BAV). This study aimed to compare iAVA measurements obtained using four different methodologies in BAV and tricuspid aortic valve (TAV) patients, using mPGcath as a reference standard. METHODS We retrospectively reviewed patients who underwent comprehensive assessment of AS, including two-dimensional (2D) transthoracic echocardiography (TTE), three-dimensional (3D) transesophageal echocardiography (TEE), multidetector computed tomography (MDCT), and catheterization, at our institution between 2019 and 2022. iAVA was measured using the continuity eq. (CE) with left ventricular outflow tract area obtained by 2D TTE, 3D TEE, and MDCT, as well as planimetric 3D TEE. RESULTS AND CONCLUSIONS Among 564 patients (64 with BAV and 500 with TAV), 64 propensity-matched pairs of patients with BAV and TAV were analyzed. iAVACE(2DTTE) led to overestimation of AS severity (BAV, 23.4%; TAV, 28.1%) and iAVACE(MDCT) led to underestimation of AS severity (BAV, 29.3%; TAV, 16.7%), whereas iAVACE(3DTEE) and iAVAPlani(3DTEE) resulted in a reduction in the discordance of AS grading. A moderate correlation was observed between mPGcath and iAVACE(3DTEE) (BAV, r = -0.63; TAV, r = -0.68), with iAVACE(3DTEE) corresponding to the current guidelines' cutoff value (BAV, 0.58 cm2/m2; TAV, 0.60 cm2/m2). Discordance/concordance between iAVA and mPGcath in evaluating AS severity varies depending on the methodology and imaging modality used. The use of iAVACE(3DTEE) is valuable for reconciling the discordant AS grading in BAV patients as well as TAV.
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Affiliation(s)
- Nobuichiro Yagi
- Smidt Heart Institute, Cedars-Sinai Medical Center, 127 S San Vicente Blvd, A3411, Los Angeles, CA 90048, USA.
| | - Hiroko Hasegawa
- Smidt Heart Institute, Cedars-Sinai Medical Center, 127 S San Vicente Blvd, A3411, Los Angeles, CA 90048, USA
| | - Ken Kuwajima
- Smidt Heart Institute, Cedars-Sinai Medical Center, 127 S San Vicente Blvd, A3411, Los Angeles, CA 90048, USA
| | - Mana Ogawa
- Smidt Heart Institute, Cedars-Sinai Medical Center, 127 S San Vicente Blvd, A3411, Los Angeles, CA 90048, USA
| | - Takafumi Yamane
- Smidt Heart Institute, Cedars-Sinai Medical Center, 127 S San Vicente Blvd, A3411, Los Angeles, CA 90048, USA
| | - Takahiro Shiota
- Smidt Heart Institute, Cedars-Sinai Medical Center, 127 S San Vicente Blvd, A3411, Los Angeles, CA 90048, USA
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González-García A, Pazos-López P, Calvo-Iglesias FE, Matajira-Chía TM, Bilbao-Quesada R, Blanco-González E, González-Ríos C, Castiñeira-Busto M, Barreiro-Pérez M, Íñiguez-Romo A. Diagnostic Challenges in Aortic Stenosis. J Cardiovasc Dev Dis 2024; 11:162. [PMID: 38921662 PMCID: PMC11203729 DOI: 10.3390/jcdd11060162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2024] [Revised: 05/15/2024] [Accepted: 05/16/2024] [Indexed: 06/27/2024] Open
Abstract
Aortic stenosis (AS) is the most prevalent degenerative valvular disease in western countries. Transthoracic echocardiography (TTE) is considered, nowadays, to be the main imaging technique for the work-up of AS due to high availability, safety, low cost, and excellent capacity to evaluate aortic valve (AV) morphology and function. Despite the diagnosis of AS being considered straightforward for a very long time, based on high gradients and reduced aortic valve area (AVA), many patients with AS represent a real dilemma for cardiologist. On the one hand, the acoustic window may be inadequate and the TTE limited in some cases. On the other hand, a growing body of evidence shows that patients with low gradients (due to systolic dysfunction, concentric hypertrophy or coexistence of another valve disease such as mitral stenosis or regurgitation) may develop severe AS (low-flow low-gradient severe AS) with a similar or even worse prognosis. The use of complementary imaging techniques such as transesophageal echocardiography (TEE), multidetector computed tomography (MDTC), or cardiac magnetic resonance (CMR) plays a key role in such scenarios. The aim of this review is to summarize the diagnostic challenges associated with patients with AS and the advantages of a comprehensive multimodality cardiac imaging (MCI) approach to reach a precise grading of the disease, a crucial factor to warrant an adequate management of patients.
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Affiliation(s)
- André González-García
- Department of Cardiology, Hospital Alvaro Cunqueiro, Complexo Hospitalario Universitario de Vigo, 36312 Vigo, Spain; (F.E.C.-I.); (T.M.M.-C.); (R.B.-Q.); (E.B.-G.); (C.G.-R.); (M.C.-B.); (M.B.-P.); (A.Í.-R.)
| | - Pablo Pazos-López
- Department of Cardiology, Hospital Alvaro Cunqueiro, Complexo Hospitalario Universitario de Vigo, 36312 Vigo, Spain; (F.E.C.-I.); (T.M.M.-C.); (R.B.-Q.); (E.B.-G.); (C.G.-R.); (M.C.-B.); (M.B.-P.); (A.Í.-R.)
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Blaser I, Papadis A, Kassar M, Nozica N, Gräni C, Seiler C, de Marchi S, Buffle E. Aortic Valve Planimetry in Aortic Stenosis Quantification: Reliability of Three-Dimensional-Multiplane Reconstruction and Comparison With Established Methods. Am J Cardiol 2024; 211:287-290. [PMID: 37952755 DOI: 10.1016/j.amjcard.2023.11.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 10/26/2023] [Accepted: 11/06/2023] [Indexed: 11/14/2023]
Abstract
We aim to evaluate the reliability and consistency of measuring the aortic valve area (AVA) using 3-dimensional (3D) transesophageal echocardiography and compare it with invasive and noninvasive methods using a continuity equation (CE). Measurements were taken from 119 patients with different severity of aortic stenosis and with normal aortic valve who underwent elective transesophageal echocardiography encompassing the whole spectrum of aortic opening. Three methods were compared to determine AVA. First, the effective AVA was calculated with the standard CE, where the left ventricular outflow tract area was calculated from its 2-dimensional diameter (AVA-CEstd). Second, a modified CE method (AVA-CEmod) was used, in which the left ventricular outflow tract area was measured using 3D-multiplane reconstruction. Third, the geometric AVA was directly measured using 3D-multiplane reconstruction planimetry (AVA-3D). Interobserver and intraobserver variability were analyzed using intraclass correlation coefficients (ICCs). The values were measured by two blinded readers for interobserver variability and by one observer on the same dataset. AVA-3D was significantly larger than AVA-CEmod and AVA-CEstd (1.87 ± 1.00 cm2 vs 1.81 ± 0.92 cm2 p = 0.03 and 1.87 ± 1.00 cm2 vs 1.71 ± 0.85 cm2 p <0.001). However, in the subset of patients with AVA-3D <1.5 cm2, there was no significant difference between AVA-3D and AVA-CEmod (1.06 ± 0.24 vs 1.08 ± 0.26 cm2, paired t test: t = 0.77, degree of freedom = 58, p = 0.44). The ICC between the measurements of AVA-3D and AVA-CEmod (ICC 0.979), and AVA-3D and AVA- CEstd (ICC 0.940), were excellent. AVA-3D delivers very similar results as compared with more established echocardiographic parameters. The difference between effective and geometric AVA did not appear to be clinically relevant in patients with a higher degree of stenosis.
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Affiliation(s)
- Isaac Blaser
- Department of Cardiology, University Hospital of Bern, Bern, Switzerland
| | - Athanasios Papadis
- Department of Cardiology, University Hospital of Bern, Bern, Switzerland
| | - Mohammad Kassar
- Department of Cardiology, University Hospital of Bern, Bern, Switzerland
| | - Nikolas Nozica
- Department of Cardiology, University Hospital of Bern, Bern, Switzerland
| | - Christoph Gräni
- Department of Cardiology, University Hospital of Bern, Bern, Switzerland
| | - Christian Seiler
- Department of Cardiology, University Hospital of Bern, Bern, Switzerland
| | - Stefano de Marchi
- Department of Cardiology, University Hospital of Bern, Bern, Switzerland
| | - Eric Buffle
- Department of Cardiology, University Hospital of Bern, Bern, Switzerland.
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White B, Wessel S, Zheng W, Gonzalez D, Sovari A, Konda S, Frazin L. Quantitative analysis of spectral Doppler clicks in assessment of aortic stenosis. Echocardiography 2019; 36:2158-2166. [DOI: 10.1111/echo.14541] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 10/24/2019] [Accepted: 10/25/2019] [Indexed: 11/29/2022] Open
Affiliation(s)
- Brent White
- University of Illinois at Chicago Chicago IL USA
| | - Sean Wessel
- University of Illinois at Chicago Chicago IL USA
| | - Weili Zheng
- University of Illinois at Chicago Chicago IL USA
| | | | - Ali Sovari
- University of Illinois at Chicago Chicago IL USA
| | | | - Leon Frazin
- University of Illinois at Chicago Chicago IL USA
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Contemporary Imaging of Aortic Stenosis. Heart Lung Circ 2019; 28:1310-1319. [PMID: 31266725 DOI: 10.1016/j.hlc.2019.05.177] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 04/29/2019] [Accepted: 05/17/2019] [Indexed: 12/26/2022]
Abstract
Degenerative or fibrocalcific aortic stenosis (AS) is now the most common native valvular heart disease assessed and managed by cardiologists in developed countries. Transthoracic echocardiography remains the quintessential imaging modality for the non-invasive characterisation of AS due to its widespread availability, superior assessment of flow haemodynamics, and a wealth of prognostic data accumulated over decades of clinical utility and research applications. With expanding technologies and increasing availability of treatment options such as transcatheter aortic valve replacements, in addition to conventional surgical approaches, accurate and precise assessment of AS severity is critical to guide decisions for and timing of interventions. Despite clear guideline echocardiographic parameters demarcating severe AS, discrepancies between transvalvular velocities, gradients, and calculated valve areas are commonly encountered in clinical practice. This often results in diagnostically challenging cases with significant implications. Greater emphasis must be placed on the quality of performance of basic two dimensional (2D) and Doppler measurements (attention to detail ensuring accuracy and precision), incorporating ancillary haemodynamic surrogates, understanding study- or patient-specific confounders, and recognising the role and limitations of stress echocardiography in the subgroups of low-flow low-gradient AS. A multiparametric approach, along with the incorporation of multimodality imaging (cardiac computed tomography or magnetic resonance imaging) in certain scenarios, is now mandatory to avoid incorrect misclassification of severe AS. This is essential to ensure appropriate selection of patients who would most benefit from interventions on the aortic valve to relieve the afterload mismatch resulting from truly severe valvular stenosis.
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Jun H, Hwang SH. Diagnostic performance of multidetector computed tomography for symptomatic lymphoceles in kidney transplant recipients. KOREAN JOURNAL OF TRANSPLANTATION 2019; 33:30-35. [PMID: 35769147 PMCID: PMC9186869 DOI: 10.4285/jkstn.2019.33.2.30] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 05/08/2019] [Accepted: 05/10/2019] [Indexed: 11/04/2022] Open
Affiliation(s)
- Heungman Jun
- Department of Surgery, Ilsan Paik Hospital, Inje University College of Medicine, Goyang, Korea
| | - Sung Ho Hwang
- Department of Radiology, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Korea
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Hahn RT, Nicoara A, Kapadia S, Svensson L, Martin R. Echocardiographic Imaging for Transcatheter Aortic Valve Replacement. J Am Soc Echocardiogr 2018; 31:405-433. [DOI: 10.1016/j.echo.2017.10.022] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Indexed: 02/06/2023]
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Argulian E, Seetharam K. Echocardiographic 3D-guided 2D planimetry in quantifying left-sided valvular heart disease. Echocardiography 2018; 35:695-706. [PMID: 29420834 DOI: 10.1111/echo.13828] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Echocardiographic 3D-guided 2D planimetry can improve the accuracy of valvular disease assessment. Acquisition of 3D pyramidal dataset allows subsequent multiplanar reconstruction with accurate orthogonal plane alignment to obtain the correct borders of an anatomic orifice or flow area. Studies examining the 3D-guided 2D planimetry approach in left-sided valvular heart disease were identified and reviewed. The strongest evidence exists for estimating mitral valve area in patients with rheumatic mitral valve stenosis and vena contracta area in patients with mitral regurgitation (both primary and secondary). 3D-guided approach showed excellent feasibility and reproducibility in most studies, as well as time efficiency and good correlation with reference and comparator methods. Therefore, 3D-guided 2D planimetry can be used as an important clinical tool in quantifying left-sided valvular heart disease, especially mitral valve disorders.
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Deeprasertkul P, Ahmad M. Evolving new concepts in the assessment of aortic stenosis. Echocardiography 2017; 34:731-745. [PMID: 28345156 DOI: 10.1111/echo.13501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Echocardiography has been pivotal in evaluating aortic stenosis (AS) over the past several decades. Recent experience has shown a wide spectrum in the clinical presentation of AS. A better understanding of the underlying hemodynamic principles has resulted in emergence of new subtypes of AS. New treatment modalities have also been introduced, requiring precise evaluation of aortic valve (AV) pathology for implementation of these therapies. This review will discuss new concepts and indices in the use of echocardiography in patients with AS. Specifically, we will address the hemodynamic characteristics, clinical presentation, and management of normal-flow, high-gradient; paradoxical low-flow, low-gradient; and classical low-flow, low-gradient aortic stenoses.
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Affiliation(s)
| | - Masood Ahmad
- Division of Cardiology, University of Texas Medical Branch, Galveston, TX, USA
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11
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Everett RJ, Newby DE, Jabbour A, Fayad ZA, Dweck MR. The Role of Imaging in Aortic Valve Disease. CURRENT CARDIOVASCULAR IMAGING REPORTS 2016; 9:21. [PMID: 27375833 PMCID: PMC4896976 DOI: 10.1007/s12410-016-9383-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
PURPOSE OF REVIEW Aortic valve disease is the most common form of heart valve disease in developed countries. Imaging remains central to the diagnosis and risk stratification of patients with both aortic stenosis and regurgitation and has traditionally been performed with echocardiography. Indeed, echocardiography remains the cornerstone of aortic valve imaging as it is cheap, widely available and provides critical information concerning valve hemodynamics and ventricular function. RECENT FINDINGS Whilst diagnostic in the vast majority of patients, echocardiography has certain limitations including operator variability, potential for measurement errors and internal inconsistencies in severity grading. In particular, low-gradient severe aortic stenosis is common and challenging to diagnose. Aortic valve imaging may therefore be improved with alternative and complimentary multimodality approaches. SUMMARY This review investigates established and novel techniques for imaging both the aortic valve and the myocardial remodelling response including echocardiography, computed tomography, cardiovascular magnetic resonance and positron emission tomography. Moreover, we examine how the complementary information provided by each modality may be used in both future clinical practice and the research arena.
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Affiliation(s)
- Russell J. Everett
- />BHF/Centre for Cardiovascular Science, University of Edinburgh, Chancellor’s Building, 49 Little France Crescent, EH16 4SB Edinburgh, UK
| | - David E. Newby
- />BHF/Centre for Cardiovascular Science, University of Edinburgh, Chancellor’s Building, 49 Little France Crescent, EH16 4SB Edinburgh, UK
| | | | - Zahi A. Fayad
- />Icahn School of Medicine at Mount Sinai, New York, USA
| | - Marc R. Dweck
- />BHF/Centre for Cardiovascular Science, University of Edinburgh, Chancellor’s Building, 49 Little France Crescent, EH16 4SB Edinburgh, UK
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Abstract
Transthoracic echocardiography is the most widely used imaging test in cardiology. Although completely noninvasive, transthoracic echocardiography has a well-established role in the diagnosis of numerous cardiovascular diseases, and also provides critical qualitative and quantitative information on their prognosis and pathophysiological processes. The aim of this Review is to outline the broad principles of transthoracic echocardiography, including the traditional techniques of two-dimensional, colour, and spectral Doppler echocardiography, and newly developed advances including tissue Doppler, myocardial deformation imaging, torsion, stress echocardiography, contrast and three-dimensional echocardiography. The advantages and disadvantages, clinical application, prognostic value, and salient research findings of each modality are described. Advances in complex imaging techniques are expected to continue unabated, and this Review highlights technical improvements that will influence the diagnosis and improve our understanding of cardiovascular function and disease.
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Affiliation(s)
- Anita C Boyd
- South Western Sydney Clinical School, University of New South Wales, Liverpool Hospital, Corner Elizabeth/Goulburn Street, NSW 2170, Australia
| | - Nelson B Schiller
- University of California, 505 Parnassus Avenue, San Francisco, CA 94143, USA
| | - Liza Thomas
- South Western Sydney Clinical School, University of New South Wales, Liverpool Hospital, Corner Elizabeth/Goulburn Street, NSW 2170, Australia
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Machida T, Izumo M, Suzuki K, Yoneyama K, Kamijima R, Mizukoshi K, Takai M, Kobayashi Y, Harada T, Miyake F, Ohtaki E, Nobuoka S, Matsumoto N, Akashi YJ. Value of anatomical aortic valve area using real-time three-dimensional transoesophageal echocardiography in patients with aortic stenosis: a comparison between tricuspid and bicuspid aortic valves. Eur Heart J Cardiovasc Imaging 2015; 16:1120-8. [DOI: 10.1093/ehjci/jev056] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Accepted: 02/18/2015] [Indexed: 11/12/2022] Open
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