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Chan WX, Zheng Y, Wiputra H, Leo HL, Yap CH. Full cardiac cycle asynchronous temporal compounding of 3D echocardiography images. Med Image Anal 2021; 74:102229. [PMID: 34571337 DOI: 10.1016/j.media.2021.102229] [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: 07/01/2020] [Revised: 08/10/2021] [Accepted: 09/09/2021] [Indexed: 10/20/2022]
Abstract
It is important to improve echocardiography image quality, because the accuracy of echocardiographic assessment and diagnosis relies on image quality. Previous work on 2D temporal image compounding for image frames with matching cardiac phases (synchronous), and for temporally neighbouring image frames (asynchronous) over small ranges of time frames showed good improvement to image quality. Here, we extend this by performing asynchronous temporal compounding to echocardiographic images in 3D, involving all frames within a cardiac cycle, via a robust 3D cardiac motion estimation algorithm to describe the large image deformations. After compounding, the images can be reanimated via the motion model. Various methods of fusing image frames together are tested, including mean, max, and wavelet methods, and outlier rejection algorithms. The compounding algorithm is applied on 3D human adult, porcine adolescent, and human fetal echocardiography images. Results show significant improvements to contrast-to-noise ratio (CNR) and boundary clarity, and significantly decreased variability in manual quantification of cardiac chamber volumes after compounding. Interestingly, compounding can extend the field of view of the echo images, by reconstructing cardiac structures that momentarily exceeded the field of view, using the motion estimation algorithm to calculate their locations outside the field of view during these time periods. Although all compounding methods provide general improvements, the mean method led to blurred boundaries, while the max methods led to high variability of CNR. Outlier rejection algorithms were found to be useful in addressing these weaknesses.
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Affiliation(s)
- Wei Xuan Chan
- Department of Biomedical Engineering, National University of Singapore, Singapore.
| | - Yu Zheng
- Department of Biomedical Engineering, National University of Singapore, Singapore
| | - Hadi Wiputra
- Department of Biomedical Engineering, National University of Singapore, Singapore
| | - Hwa Liang Leo
- Department of Biomedical Engineering, National University of Singapore, Singapore.
| | - Choon Hwai Yap
- Department of Bioengineering, Imperial College London, London, UK.
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Levack MM, Mecozzi G, Jainandunsing JS, Bouma W, Jassar AS, Pouch AM, Yushkevich PA, Mariani MA, Jackson BM, Gorman JH, Gorman RC. Quantitative three-dimensional echocardiographic analysis of the bicuspid aortic valve and aortic root: A single modality approach. J Card Surg 2019; 35:375-382. [PMID: 31794089 DOI: 10.1111/jocs.14387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Patients with bicuspid aortic valves (BAV) are heterogeneous with regard to patterns of root remodeling and valvular dysfunction. Two-dimensional echocardiography is the standard surveillance modality for patients with aortic valve dysfunction. However, ancillary computed tomography or magnetic resonance imaging is often necessary to characterize associated patterns of aortic root pathology. Conversely, the pairing of three-dimensional (3D) echocardiography with novel quantitative modeling techniques allows for a single modality description of the entire root complex. We sought to determine 3D aortic valve and root geometry with this quantitative approach. METHODS Transesophageal real-time 3D echocardiography was performed in five patients with tricuspid aortic valves (TAV) and in five patients with BAV. No patient had evidence of valvular dysfunction or aortic root pathology. A customized image analysis protocol was used to assess 3D aortic annular, valvular, and root geometry. RESULTS Annular, sinus and sinotubular junction diameters and areas were similar in both groups. Coaptation length and area were higher in the TAV group (7.25 ± 0.98 mm and 298 ± 118 mm2 , respectively) compared to the BAV group (5.67 ± 1.33 mm and 177 ± 43 mm2 ; P = .07 and P = .01). Cusp surface area to annular area, coaptation height, and the sub- and supravalvular tenting indices did not differ significantly between groups. CONCLUSIONS Single modality 3D echocardiography-based modeling allows for a quantitative description of the aortic valve and root geometry. This technique together with novel indices will improve our understanding of normal and pathologic geometry in the BAV population and may help to identify geometric predictors of adverse remodeling and guide tailored surgical therapy.
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Affiliation(s)
- Melissa M Levack
- Gorman Cardiovascular Research Group, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Gianclaudio Mecozzi
- Department of Cardiothoracic Surgery, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Jayant S Jainandunsing
- Department of Anesthesiology and Pain Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Wobbe Bouma
- Gorman Cardiovascular Research Group, University of Pennsylvania, Philadelphia, Pennsylvania.,Department of Cardiothoracic Surgery, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Arminder S Jassar
- Gorman Cardiovascular Research Group, University of Pennsylvania, Philadelphia, Pennsylvania.,Department of Surgery, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Alison M Pouch
- Gorman Cardiovascular Research Group, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Paul A Yushkevich
- Department of Radiology, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Massimo A Mariani
- Department of Cardiothoracic Surgery, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Benjamin M Jackson
- Department of Surgery, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Joseph H Gorman
- Gorman Cardiovascular Research Group, University of Pennsylvania, Philadelphia, Pennsylvania.,Department of Surgery, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Robert C Gorman
- Gorman Cardiovascular Research Group, University of Pennsylvania, Philadelphia, Pennsylvania.,Department of Surgery, University of Pennsylvania, Philadelphia, Pennsylvania
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Chen Y, Liu J, Grondin J, Konofagou EE, Luo J. Compressed sensing reconstruction of synthetic transmit aperture dataset for volumetric diverging wave imaging. Phys Med Biol 2019; 64:025013. [PMID: 30523875 DOI: 10.1088/1361-6560/aaf5f1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
A high volume rate and high performance ultrasound imaging method based on a matrix array is proposed by using compressed sensing (CS) to reconstruct the complete dataset of synthetic transmit aperture (STA) from three-dimensional (3D) diverging wave transmissions (i.e. 3D CS-STA). Hereto, a series of apodized 3D diverging waves are transmitted from a fixed virtual source, with the ith row of a Hadamard matrix taken as the apodization coefficients in the ith transmit event. Then CS is used to reconstruct the complete dataset, based on the linear relationship between the backscattered echoes and the complete dataset of 3D STA. Finally, standard STA beamforming is applied on the reconstructed complete dataset to obtain the volumetric image. Four layouts of element numbering for apodizations and transmit numbers of 16, 32 and 64 are investigated through computer simulations and phantom experiments. Furthermore, the proposed 3D CS-STA setups are compared with 3D single-line-transmit (SLT) and 3D diverging wave compounding (DWC). The results show that, (i) 3D CS-STA has competitive lateral resolutions to 3D STA, and their contrast ratios (CRs) and contrast-to-noise ratios (CNRs) approach to those of 3D STA as the number of transmit events increases in noise-free condition. (ii) the tested 3D CS-STA setups show good robustness in complete dataset reconstruction in the presence of different levels of noise. (iii) 3D CS-STA outperforms 3D SLT and 3D DWC. More specifically, the 3D CS-STA setup with 64 transmit events and the Random layout achieves ~31% improvement in lateral resolution, ~14% improvement in ratio of the estimated-to-true cystic areas, a higher volume rate, and competitive CR/CNR when compared with 3D DWC. The results demonstrate that 3D CS-STA has great potential of providing high quality volumetric image with a higher volume rate.
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Affiliation(s)
- Yinran Chen
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, People's Republic of China
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Morgan MR, Broder JS, Dahl JJ, Herickhoff CD. Versatile Low-Cost Volumetric 3-D Ultrasound Platform for Existing Clinical 2-D Systems. IEEE TRANSACTIONS ON MEDICAL IMAGING 2018; 37:2248-2256. [PMID: 29993653 DOI: 10.1109/tmi.2018.2821901] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Ultrasound imaging has indications across many areas of medicine, but the need for training and the variability in skill and acquired image quality among 2-D ultrasound users have limited its wider adoption and utilization. Low-cost volumetric ultrasound with a known frame of reference has the potential to lower these operator-dependent barriers and enhance the clinical utility of ultrasound imaging. In this paper, we improve upon our previous research-scanner-based prototype to implement a versatile volumetric imaging platform for existing clinical 2-D ultrasound systems. We present improved data acquisition and image reconstruction schemes to increase quality, streamline workflow, and provide real-time visual feedback. We present initial results using the platform on a Vimedix simulator, as well as on phantom and in vivo targets using a variety of clinical ultrasound systems and probes.
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Vegas A. Three-dimensional transesophageal echocardiography: Principles and clinical applications. Ann Card Anaesth 2017; 19:S35-S43. [PMID: 27762247 PMCID: PMC5100241 DOI: 10.4103/0971-9784.192622] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
A basic understanding of evolving 3D technology enables the echocardiographer to master the new skills necessary to acquire, manipulate, and interpret 3D datasets. Single button activation of specific 3D imaging modes for both TEE and transthoracic echocardiography (TTE) matrix array probes include (a) live, (b) zoom, (c) full volume (FV), and (d) color Doppler FV. Evaluation of regional LV wall motion by RT 3D TEE is based on a change in LV chamber subvolume over time from altered segmental myocardial contractility. Unlike standard 2D TEE, there is no direct measurement of myocardial thickening or displacement of individual segments.
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Affiliation(s)
- Annette Vegas
- Senior Consultant, Department of Anaesthesia, Toronto General Hospital, Toronto, Ontario, Canada
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Saranteas T, Mavrogenis AF, Mandila C, Poularas J, Panou F. Ultrasound in cardiac trauma. J Crit Care 2016; 38:144-151. [PMID: 27907878 DOI: 10.1016/j.jcrc.2016.10.032] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Accepted: 10/31/2016] [Indexed: 11/17/2022]
Abstract
In the perioperative period, the emergency department or the intensive care unit accurate assessment of variable chest pain requires meticulous knowledge, diagnostic skills, and suitable usage of various diagnostic modalities. In addition, in polytrauma patients, cardiac injury including aortic dissection, pulmonary embolism, acute myocardial infarction, and pericardial effusion should be immediately revealed and treated. In these patients, arrhythmias, mainly tachycardia, cardiac murmurs, or hypotension must alert physicians to suspect cardiovascular trauma, which would potentially be life threatening. Ultrasound of the heart using transthoracic and transesophageal echocardiography are valuable diagnostic tools that can be used interchangeably in conjunction with other modalities such as the electrocardiogram and computed tomography for the diagnosis of cardiovascular abnormalities in trauma patients. Although ultrasound of the heart is often underused in the setting of trauma, it does have the advantages of being easily accessible, noninvasive, and rapid bedside assessment tool. This review article aims to analyze the potential cardiac injuries in trauma patients, and to provide an elaborate description of the role of echocardiography for their accurate diagnosis.
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Affiliation(s)
- Theodosios Saranteas
- Department of Anaesthesiology, National and Kapodistrian University of Athens, School of Medicine, Attikon University Hospital, Athens, Greece.
| | - Andreas F Mavrogenis
- First Department of Orthopaedics, National and Kapodistrian University of Athens, School of Medicine, Attikon University Hospital, Athens, Greece
| | - Christina Mandila
- Intensive Care Unit, General State Hospital of Athens, Athens, Greece
| | - John Poularas
- Intensive Care Unit, General State Hospital of Athens, Athens, Greece
| | - Fotios Panou
- Second department of Cardiology, National and Kapodistrian University of Athens, School of Medicine, Attikon University Hospital, Athens, Greece
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Mahmood F, Jeganathan J, Saraf R, Shahul S, Swaminathan M, Burkhard Mackensen G, Knio Z, Matyal R. A Practical Approach to an Intraoperative Three-Dimensional Transesophageal Echocardiography Examination. J Cardiothorac Vasc Anesth 2016; 30:470-90. [DOI: 10.1053/j.jvca.2015.10.014] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Indexed: 12/15/2022]
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Gerstein NS, Copeland SG, Kratzert WB, Deriy L, Windsor J. Now you see it, now you don't: 3D echocardiographic evaluation of a prosthetic aortic valve. J Cardiothorac Vasc Anesth 2014; 27:1060-3. [PMID: 24054193 DOI: 10.1053/j.jvca.2013.05.039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2013] [Indexed: 11/11/2022]
Affiliation(s)
- Neal S Gerstein
- Department of Anesthesiology, University of New Mexico School of Medicine, Albuquerque, NM.
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Slipczuk L, Siegel RJ, Jilaihawi H, Hussaini A, Kar S. Optimizing procedural outcomes in percutaneous mitral valve therapy using transesophageal imaging: a stepwise analysis. Expert Rev Cardiovasc Ther 2014; 10:901-16. [DOI: 10.1586/erc.12.72] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Mahmood F, Shakil O, Mahmood B, Chaudhry M, Matyal R, Khabbaz KR. Mitral annulus: an intraoperative echocardiographic perspective. J Cardiothorac Vasc Anesth 2013; 27:1355-63. [PMID: 23962462 DOI: 10.1053/j.jvca.2013.02.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2012] [Indexed: 11/11/2022]
Affiliation(s)
- Feroze Mahmood
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA.
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Affiliation(s)
- José L Zamorano
- University Hospital Ramón y Cajal, Carretera de Colmenar Km 9.100, Madrid 28034, Spain.
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12
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Mahmood F, Swaminathan M. Aortic Stenosis and 3-Dimensional Echocardiography: The Saga Continues. J Cardiothorac Vasc Anesth 2013; 27:192-3. [DOI: 10.1053/j.jvca.2012.08.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2012] [Indexed: 11/11/2022]
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Katalinic D, Stern-Padovan R, Ivanac I, Aleric I, Tentor D, Nikolac N, Santek F, Juretic A, Plestina S. Symptomatic cardiac metastases of breast cancer 27 years after mastectomy: a case report with literature review--pathophysiology of molecular mechanisms and metastatic pathways, clinical aspects, diagnostic procedures and treatment modalities. World J Surg Oncol 2013; 11:14. [PMID: 23343205 PMCID: PMC3562152 DOI: 10.1186/1477-7819-11-14] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2012] [Accepted: 01/13/2013] [Indexed: 01/06/2023] Open
Abstract
Metastases to the heart and pericardium are rare but more common than primary cardiac tumours and are generally associated with a rather poor prognosis. Most cases are clinically silent and are undiagnosed in vivo until the autopsy. We present a female patient with a 27-year-old history of an operated primary breast cancer who was presented with dyspnoea, paroxysmal nocturnal dyspnoea and orthopnoea. The clinical signs and symptoms aroused suspicion of congestive heart failure. However, the cardiac metastases were detected during a routine cardiologic evaluation and confirmed with computed tomography imaging. Additionally, this paper outlines the pathophysiology of molecular and clinical mechanisms involved in the metastatic spreading, clinical presentation, diagnostic procedures and treatment of heart metastases. The present case demonstrates that a complete surgical resection and systemic chemotherapy may result in a favourable outcome for many years. However, a lifelong medical follow-up, with the purpose of a detection of metastases, is highly recommended. We strongly call the attention of clinicians to the fact that during the follow-up of all cancer patients, such heart failure may be a harbinger of the secondary heart involvement.
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Affiliation(s)
- Darko Katalinic
- Department of Oncology, University Hospital Centre (KBC Zagreb), University of Zagreb School of Medicine, Kispaticeva 12, Zagreb, Croatia.
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Update on Three Dimensional Echocardiography. CURRENT CARDIOVASCULAR IMAGING REPORTS 2012. [DOI: 10.1007/s12410-012-9166-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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15
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Mahmood F, Hess PE, Matyal R, Mackensen GB, Wang A, Qazi A, Panzica PJ, Lerner AB, Maslow A. Echocardiographic Anatomy of the Mitral Valve: A Critical Appraisal of 2-Dimensional Imaging Protocols With a 3-Dimensional Perspective. J Cardiothorac Vasc Anesth 2012; 26:777-84. [DOI: 10.1053/j.jvca.2012.06.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2011] [Indexed: 11/11/2022]
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Anwar AM, Nosir YFM, Zainal-Abidin SK, Ajam A, Chamsi-Pasha H. Real-time three-dimensional transthoracic echocardiography in daily practice: initial experience. Cardiovasc Ultrasound 2012; 10:14. [PMID: 22448671 PMCID: PMC3350441 DOI: 10.1186/1476-7120-10-14] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2012] [Accepted: 03/26/2012] [Indexed: 11/10/2022] Open
Abstract
AIM OF THE WORK To evaluate the feasibility and possible additional value of transthoracic real-time three-dimensional echocardiography (RT3D-TTE) for the assessment of cardiac structures as compared to 2D-TTE. METHODS 320 patients (mean age 45 ± 8.4 years, 75% males) underwent 2D-TTE and RT3D-TTE using 3DQ-Q lab software for offline analysis. Volume quantification and functional assessment was performed in 90 patients for left ventricle and in 20 patients for right ventricle. Assessment of native (112 patients) and prosthetic (30 patients) valves morphology and functions was performed. RT3D-TTE was performed for evaluation of septal defects in 30 patients and intracardiac masses in 52 patients. RESULTS RT3D-TTE assessment of left ventricle was feasible and reproducible in 86% of patients while for right ventricle, it was (55%). RT3D-TTE could define the surface anatomy of mitral valve optimally (100%), while for aortic and tricuspid was (88% and 81% respectively). Valve area could be planimetered in 100% for the mitral and in 80% for the aortic. RT3D-TTE provided a comprehensive anatomical and functional evaluation of prosthetic valves. RT3D-TTE enface visualization of septal defects allowed optimal assessment of shape, size, area and number of defects and evaluated the outcome post device closure. RT3D-TTE allowed looking inside the intracardiac masses through multiple sectioning, valuable anatomical delineation and volume calculation. CONCLUSION Our initial experience showed that the use of RT3D-TTE in the assessment of cardiac patients is feasible and allowed detailed anatomical and functional assessment of many cardiac disorders.
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Affiliation(s)
- Ashraf M Anwar
- Department of Cardiology, King Fahd Armed Forces Hospital, P,O, Box: 9862, Jeddah 21159, Saudi-Arabia.
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The added value of real-time three-dimensional echocardiography in the diagnosis of supravalvar mitral ring: case report and review of the literature. J Echocardiogr 2011; 9:127-9. [PMID: 27277288 DOI: 10.1007/s12574-011-0090-0] [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: 02/11/2011] [Revised: 03/21/2011] [Accepted: 03/23/2011] [Indexed: 10/18/2022]
Abstract
Supravalvular mitral stenosis is a rare condition characterized by an abnormal ridge, with one or two orifices, covering and obstructing the mitral valve. Preoperative identification of the supravalvular ring is the target for obtaining good surgical results. Two-dimensional echocardiogram and transesophageal echocardiography both failed in reaching this objective. In this case, we showed that three-dimensional echocardiogram is a new technique that provides additional and more accurate echocardiographic characterization of congenital supravalvular mitral stenosis.
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Three-dimensional echocardiography in paravalvular aortic regurgitation assessment after transcatheter aortic valve implantation. J Am Soc Echocardiogr 2011; 25:47-55. [PMID: 21962448 DOI: 10.1016/j.echo.2011.08.019] [Citation(s) in RCA: 86] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2011] [Indexed: 12/17/2022]
Abstract
BACKGROUND Paravalvular aortic regurgitation (AR) after transcatheter aortic valve implantation (TAVI) is common, but the evaluation of its severity by two-dimensional (2D) transthoracic echocardiography (TTE) presents several constrains. The aim of this study was to assess the usefulness of a new methodology, using three-dimensional (3D) TTE, for better assessment of paravalvular AR after TAVI. METHODS Two-dimensional and 3D TTE was performed in 72 patients, 5 months after TAVI, using the X5-1 PureWave microbeamforming xMATRIX probe. The position and severity of the paravalvular AR jets were described using 2D and 3D TTE, and a model was designed for paravalvular AR systematic location description. Vena contracta width was measured using 2D transthoracic echocardiographic views, and the planimetry of the vena contracta was assessed after the perfect alignment plane was obtained using the multiplanar 3D transthoracic echocardiographic reconstruction tool. AR volume was calculated as the difference between 3D TTE-derived total left ventricular stroke volume and right ventricular stroke volume estimated using 2D TTE. Diagnostic efficiency for moderate AR was assessed using receiver operating characteristic curve analysis. RESULTS Forty-three patients (57.4%) presented with AR; 10 (13.3%) had central AR, and 33 (44.0%) had paravalvular AR jets. Vena contracta widths were similar between patients with moderate and mild AR (2.1 ± 0.53 vs 1.9 ± 0.16 mm, P = .16), but vena contracta planimetry was larger in patients with moderate AR than in those with mild AR (0.30 ± 0.12 vs 0.09 ± 0.07 cm(2), P = .001). Vena contracta planimetry on 3D TTE was better correlated with AR volume than vena contracta width on 2D TTE (Kendall's τ = 0.82 [P < .001] vs 0.66 [P < .001]). The areas under the receiver operating characteristic curves were 0.96 for vena contracta planimetry and 0.35 for vena contracta width. CONCLUSIONS This study proposes an alternative methodology for paravalvular AR assessment after TAVI. Using vena contracta planimetry on 3D TTE, an accurate methodology for paravalvular AR jet evaluation and moderate AR classification is described.
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Zabadneh N, Santagati C, Reffo E, Biffanti R, Cerutti A, Maschietto N, Milanesi O. Usefulness of fetal three-dimensional ultrasonography for detecting of congenital heart defects and associated syndromes. Pediatr Cardiol 2011; 32:724-36. [PMID: 21479665 DOI: 10.1007/s00246-011-9977-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2010] [Accepted: 03/22/2011] [Indexed: 11/26/2022]
Abstract
Congenital heart defects (CHDs) occur in 1% of live-born infants and frequently are associated with extracardiac malformations. This study aimed to assess the feasibility and accuracy of three-dimensional ultrasonography (3DUS) in fetuses with CHD and to investigate whether 3DUS can add information about the heart and general fetal morphology that shows other congenital malformations or suggests syndromes. For 30 fetuses affected by CHD, 3DUS was performed using a Sonos 7500 ultrasound machine with a cardiac 3D transducer. In 44% of the exams, 3DUS was completely diagnostic for the CHD, providing additional information in 28% of the exams. Furthermore, 3DUS showed 82% of associated malformations, providing the complete diagnosis in 57% of the cases and helping with recognition of syndromes in others. The diagnostic accuracy of 3DUS was superior, with a higher number of acquisitions per exam. Performance was better in fetuses younger than 24 weeks for general morphologic details and in fetuses older than 24 weeks for the heart morphology.
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Affiliation(s)
- Nadia Zabadneh
- Department of Pediatrics, University of Padova, Via Giustiniani 3, 35128, Padova, Italy
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Antsaklis A, Daskalakis G, Theodora M, Hiridis P, Komita O, Blanas K, Anastasakis E. Assessment of nuchal translucency thickness and the fetal anatomy in the first trimester of pregnancy by two- and three-dimensional ultrasonography: a pilot study. J Perinat Med 2011; 39:185-93. [PMID: 21309629 DOI: 10.1515/jpm.2010.156] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AIM To evaluate the use of three-dimensional ultrasonography (3D) as an alternative for examining fetal anatomy and nuchal translucency (NT) in the 1(st) trimester of pregnancy. METHOD Prospective study of 199 low risk pregnant women undergoing 1(st) trimester ultrasound scan for fetal anomalies. The NT and fetal anatomy were evaluated by three-dimensional (3D) ultrasonography after the standard two-dimensional (2D) examination. The gold standard in this study was the 2D ultrasonography. RESULTS In some of the evaluated parameters the 3D method approaches the conventional 2D results. These parameters are the crown-rump length (CRL), the skull - brain anatomy (93.5%), the spine (85.4%), the upper (88.4%) and lower limbs (87.9%) and the examination of the fetal abdomen (98.5%). Some of the anatomic parameters under evaluation revealed a statistically significant difference in favor of the 2D examination. During the 3D examination the nasal bone was identified in 62.1% of the cases, the stomach in 85.9%, and the urinary bladder in 57.3% of the cases. The NT was assessed accurately in half of the cases compared to 2D examination. CONCLUSION The 3D ultrasound is insufficient for the detailed fetal anatomy examination during the 1(st) trimester of pregnancy. Nevertheless, the method might be improved in order to be considered as a screening method.
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Affiliation(s)
- Aris Antsaklis
- Fetal-Medicine Unit, 1st Department of Obstetrics and Gynaecology, "Alexandra" Maternity Hospital, University of Athens, Athens, Greece
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Imaging Atrial Septal Defects by Real-Time Three-Dimensional Transesophageal Echocardiography: Step-by-Step Approach. J Am Soc Echocardiogr 2010; 23:1128-35. [DOI: 10.1016/j.echo.2010.08.008] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2010] [Indexed: 11/21/2022]
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Gonçalves A, Zamorano JL. Valve anatomy and function with transthoracic three-dimensional echocardiography: advantages and limitations of instantaneous full-volume color Doppler imaging. Ther Adv Cardiovasc Dis 2010; 4:385-94. [PMID: 20965949 DOI: 10.1177/1753944710384771] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Three-dimensional echocardiography (3DE) is becoming part of everyday clinical practice worldwide. However, 3DE requires adequate electrocardiographic and respiratory gating and it complements instead of replacing bidimensional echocardiography (2D). The instantaneous full-volume echocardiography technique is trying to overcome some of these limitations and to present an effective alternative to 2D echocardiography. In this article we aim to review the contribution of 3DE to our knowledge of anatomic and functional valvular anatomy and the potential advantages of instantaneous full-volume color Doppler echocardiography.
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Salcedo EE, Quaife RA, Seres T, Carroll JD. A Framework for Systematic Characterization of the Mitral Valve by Real-Time Three-Dimensional Transesophageal Echocardiography. J Am Soc Echocardiogr 2009; 22:1087-99. [PMID: 19801300 DOI: 10.1016/j.echo.2009.07.007] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2009] [Indexed: 11/28/2022]
Affiliation(s)
- Ernesto E Salcedo
- University of Colorado Denver, Denver, Colorado, Aurora, CO 80045, USA.
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Karaman M, Wygant IO, Oralkan O, Khuri-Yakub BT. Minimally redundant 2-D array designs for 3-D medical ultrasound imaging. IEEE TRANSACTIONS ON MEDICAL IMAGING 2009; 28:1051-1061. [PMID: 19131299 DOI: 10.1109/tmi.2008.2010936] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
In real-time ultrasonic 3-D imaging, in addition to difficulties in fabricating and interconnecting 2-D transducer arrays with hundreds of elements, there are also challenges in acquiring and processing data from a large number of ultrasound channels. The coarray (spatial convolution of the transmit and receive arrays) can be used to find efficient array designs that capture all of the spatial frequency content (a transmit-receive element combination corresponds to a spatial frequency) with a reduced number of active channels and firing events. Eliminating the redundancies in the transmit-receive element combinations and firing events reduces the overall system complexity and improves the frame rate. Here we explore four reduced redundancy 2-D array configurations for miniature 3-D ultrasonic imaging systems. Our approach is based on 1) coarray design with reduced redundancy using different subsets of linear arrays constituting the 2-D transducer array, and 2) 3-D scanning using fan-beams (narrow in one dimension and broad in the other dimension) generated by the transmit linear arrays. We form the overall array response through coherent summation of the individual responses of each transmit-receive array pairs. We present theoretical and simulated point spread functions of the array configurations along with quantitative comparison in terms of the front-end complexity and image quality.
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Affiliation(s)
- Mustafa Karaman
- Department of Electronics Engineering, Işik University,34980 Istanbul, Turkey.
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Evaluation of atrial septal defect using real-time three-dimensional echocardiography: comparison with surgical findings. ACTA ACUST UNITED AC 2009; 29:257-9. [PMID: 19399417 DOI: 10.1007/s11596-009-0225-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2008] [Indexed: 10/19/2022]
Abstract
The present study evaluated the application of three dimensional echocardigraphy (3DE) in the diagnosis of atrial septal defect (ASD) and the measurement of its size by 3DE and compared the size with surgical findings. Two-dimensional and real-time three dimensional echocardiography (RT3DE) was performed in 26 patients with atrial septal defect, and the echocardiographic data were compared with the surgical findings. Significant correlation was found between defect diameter by RT3DE and that measured during surgery (r=0.77, P<0.001). The defect area changed significantly during cardiac cycle. Percentage change in defect size during cardiac cycle ranged from 6%-70%. Our study showed that the size and morphology of atrial septal defect obtained with RT3DE correlate well with surgical findings. Therefore, RT3DE is a feasible and accurate non-invasive imaging tool for assessment of atrial septal size and dynamic changes.
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Karadayi K, Managuli R, Kim Y. Three-Dimensional Ultrasound: From Acquisition to Visualization and From Algorithms to Systems. IEEE Rev Biomed Eng 2009. [DOI: 10.1109/rbme.2009.2034132] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Biyikoglu SF, Guray Y, Turkvatan A, Boyaci A, Katircioglu F. A Serious Complication Late After Mitral Valve Replacement: Left Ventricular Rupture with Pseudoaneurysm. J Am Soc Echocardiogr 2008; 21:1178.e1-3. [DOI: 10.1016/j.echo.2007.11.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2007] [Indexed: 10/21/2022]
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Value of Real-Time 3-Dimensional Echocardiography Sectional Diagnosis in Complex Congenital Heart Disease Evaluated by Receiver Operating Characteristic Analysis. J Am Soc Echocardiogr 2008; 21:458-63. [DOI: 10.1016/j.echo.2007.08.040] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2007] [Indexed: 11/21/2022]
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Shahgaldi K, Söderqvist E, Gudmundsson P, Winter R, Nowak J, Brodin LA. Flow-volume loops derived from three-dimensional echocardiography: a novel approach to the assessment of left ventricular hemodynamics. Cardiovasc Ultrasound 2008; 6:13. [PMID: 18394157 PMCID: PMC2322957 DOI: 10.1186/1476-7120-6-13] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2008] [Accepted: 04/04/2008] [Indexed: 11/30/2022] Open
Abstract
Background This study explores the feasibility of non-invasive evaluation of left ventricular (LV) flow-volume dynamics using 3-dimensional (3D) echocardiography, and the capacity of such an approach to identify altered LV hemodynamic states caused by valvular abnormalities. Methods Thirty-one patients with moderate-severe aortic (AS) and mitral (MS) stenoses (21 and 10 patients, respectively) and 10 healthy volunteers underwent 3D echocardiography with full volume acquisition using Philips Sonos 7500 equipment. The digital 3D data were post- processed using TomTec software. LV flow-volume loops were subsequently constructed for each subject by plotting instantaneous LV volume data sampled throughout the cardiac cycle vs. their first derivative representing LV flow. After correction for body surface area, an average flow-volume loop was calculated for each subject group. Results Flow-volume loops were obtainable in all subjects, except 3 patients with AS. The flow-volume diagrams displayed clear differences in the form and position of the loops between normal individuals and the respective patient groups. In patients with AS, an "obstructive" pattern was observed, with lower flow values during early systole and larger end-systolic volume. On the other hand, patients with MS displayed a "restrictive" flow-volume pattern, with reduced diastolic filling and smaller end-diastolic volume. Conclusion Non-invasive evaluation of LV flow-volume dynamics using 3D-echocardiographic data is technically possible and the approach has a capacity to identify certain specific types of alteration of LV flow-volume pattern caused by valvular abnormalities, thus reflecting underlying hemodynamic states specific for these abnormalities.
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Affiliation(s)
- Kambiz Shahgaldi
- Department of Cardiology, Karolinska University Hospital Huddinge, Stockholm, Sweden.
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Banks DA, Khawaja HS. Editorial: Three-Dimensional Echocardiography Has Finally Arrived! J Cardiothorac Vasc Anesth 2008; 22:290-1. [DOI: 10.1053/j.jvca.2008.01.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2008] [Indexed: 11/11/2022]
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Kito G. [Evaluation of cardiac function in cynomolgus monkeys using real-time three dimensional echocardiography: applications to pharmacological and safety assessment]. Nihon Yakurigaku Zasshi 2007; 129:437-43. [PMID: 17575421 DOI: 10.1254/fpj.129.437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
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de Agustin JA, Nanda NC, Gill EA, de Isla LP, Zamorano JL. The Use of Three-Dimensional Echocardiography for the Evaluation of and Treatment of Mitral Stenosis. Cardiol Clin 2007; 25:311-8. [PMID: 17765111 DOI: 10.1016/j.ccl.2007.06.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
To date, mitral stenosis has been evaluated by both hemodynamic data derived from catheterization as well as 2D and Doppler echocardiography. However, the advent of real-time 3D echocardiography has allowed more precise measurement of the mitral valve orifice by planimetry. In addition, evaluation of the mitral commissures prior to and after percutaneous mitral valvuloplasty is greatly aided by 3D echocardiography. Here we discuss these subjects as well as provide specific clinical trials that support the use of real-time 3D echocardiography for the evaluation and treatment of mitral stenosis.
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Lin LC, Liau CS, Lee YT. Quantitative Assessment of Left Ventricle by Real-time Three-dimensional Echocardiography. J Med Ultrasound 2007. [DOI: 10.1016/s0929-6441(08)60021-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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