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Ouyang R, Leng S, Chen L, Ma Y, Hu L, Sun A, Wang Q, Zhao X, Tan RS, Guo C, Yao X, Zhong L, Zhong Y. Assessment of right ventricular diastolic function in pediatric patients with repaired tetralogy of Fallot by cardiovascular magnetic resonance and echocardiography. Eur Radiol 2024:10.1007/s00330-023-10538-x. [PMID: 38180528 DOI: 10.1007/s00330-023-10538-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 10/18/2023] [Accepted: 12/04/2023] [Indexed: 01/06/2024]
Abstract
OBJECTIVES Cardiovascular magnetic resonance (CMR) imaging is routinely performed for assessing right ventricular (RV) systolic but not diastolic function. We aimed to investigate CMR-based assessment of RV diastolic function in pediatric patients with repaired tetralogy of Fallot (rTOF), compared to transthoracic echocardiography (TTE) measurements. METHODS A total of 130 consecutive pediatric patients with rTOF who underwent clinically indicated CMR and same-day TTE were included. Forty-three controls were recruited. Phase-contrast images were used to measure trans-tricuspid valve flow velocities during early (E) and late diastolic (A) phases (measured in cm/s). Feature tracking of the tricuspid annulus was performed to derive early (e') and late diastolic (a') myocardial velocities (measured in cm/s). RV diastolic function was evaluated by E/A ratio, E/e' ratio, and E-wave deceleration time (measured in milliseconds). Regression analyses were utilized to identify potential variables associated with RV diastolic dysfunction (DD). The performance of CMR-derived parameters in diagnosing RV DD was assessed using receiver-operating characteristic analyses. RESULTS Good agreement was found between CMR and TTE measurements (ICC 0.70-0.89). Patients with RV DD (n = 67) showed significantly different CMR-derived parameters including E and e' velocities, and E/A and E/e' ratio, compared to patients without DD (n = 63) (all p < 0.05). CMR-derived E and e' velocities and E/e' ratio were independent predictors of RV DD. E/e' of 5.8 demonstrated the highest discrimination of RV DD (AUC 0.76, sensitivity 70%, specificity 86%). CONCLUSIONS CMR-derived parameters showed good agreement with TTE parameters in determining RV DD. CMR-derived E/e' was proved to be the most effective in identifying RV DD. CLINICAL RELEVANCE STATEMENT This study demonstrated the feasibility and efficacy of CMR in assessing diastolic function in pediatric patients. RV DD was presented in over half of patients according to current TTE guidelines, highlighting the need for assessing RV diastolic function during follow-up. KEY POINTS • Routinely acquired cine and phase-contrast cardiovascular magnetic resonance (CMR) images yielded right ventricular (RV) diastolic parameters which demonstrated good agreement with transthoracic echocardiography (TTE) measurements. • There was a high prevalence of RV diastolic function impairment in pediatric patients with repaired tetralogy of Fallot (rTOF). • CMR is a reliable complementary modality of TTE for RV diastolic function evaluation.
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Affiliation(s)
- Rongzhen Ouyang
- Department of Radiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, 1678 Dong Fang Rd, Shanghai, 200127, China
| | - Shuang Leng
- National Heart Centre Singapore, 5 Hospital Drive, Singapore, 169609, Singapore
- Duke-NUS Medical School, National University of Singapore, 8 College Rd, Singapore, 169857, Singapore
| | - Lijun Chen
- Department of Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, 1678 Dong Fang Rd, Shanghai, 200127, China
| | - Yanyan Ma
- Department of Radiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, 1678 Dong Fang Rd, Shanghai, 200127, China
| | - Liwei Hu
- Department of Radiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, 1678 Dong Fang Rd, Shanghai, 200127, China
| | - Aimin Sun
- Department of Radiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, 1678 Dong Fang Rd, Shanghai, 200127, China
| | - Qian Wang
- Department of Radiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, 1678 Dong Fang Rd, Shanghai, 200127, China
| | - Xiaodan Zhao
- National Heart Centre Singapore, 5 Hospital Drive, Singapore, 169609, Singapore
| | - Ru-San Tan
- National Heart Centre Singapore, 5 Hospital Drive, Singapore, 169609, Singapore
- Duke-NUS Medical School, National University of Singapore, 8 College Rd, Singapore, 169857, Singapore
| | - Chen Guo
- Department of Radiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, 1678 Dong Fang Rd, Shanghai, 200127, China
| | - Xiaofen Yao
- Department of Radiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, 1678 Dong Fang Rd, Shanghai, 200127, China
| | - Liang Zhong
- National Heart Centre Singapore, 5 Hospital Drive, Singapore, 169609, Singapore.
- Duke-NUS Medical School, National University of Singapore, 8 College Rd, Singapore, 169857, Singapore.
- Department of Biomedical Engineering, National University of Singapore, Engineering Drive 3 Block 4, Singapore, 117583, Singapore.
| | - Yumin Zhong
- Department of Radiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, 1678 Dong Fang Rd, Shanghai, 200127, China.
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Kikano SD, Weingarten A, Sunthankar SD, McEachern W, George-Durett K, Parra DA, Soslow JH, Chew JD. Association of cardiovascular magnetic resonance diastolic indices with arrhythmia in repaired Tetralogy of Fallot. J Cardiovasc Magn Reson 2023; 25:17. [PMID: 36907898 PMCID: PMC10009941 DOI: 10.1186/s12968-023-00928-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 02/23/2023] [Indexed: 03/14/2023] Open
Abstract
BACKGROUND Patients with repaired Tetralogy of Fallot (rTOF) experience a high burden of long-term morbidity, particularly arrhythmias. Cardiovascular magnetic resonance (CMR) is routinely used to assess ventricular characteristics but the relationship between CMR diastolic function and arrhythmia has not been evaluated. We hypothesized in rTOF, left ventricular (LV) diastolic dysfunction on CMR would correlate with arrhythmias and mortality. METHODS Adolescents and adults with rTOF who underwent CMR were compared to healthy controls (n = 58). Standard ventricular parameters were assessed and manual planimetry was performed to generate filling curves and indices of diastolic function. Chart review was performed to collect outcomes. Univariate and multivariable logistic regression was performed to identify outcome associations. RESULTS One-hundred sixty-seven subjects with rTOF (mean age 32 years) and 58 healthy control subjects underwent CMR. Patients with rTOF had decreased LV volumes and increased right ventricular (RV) volumes, lower RV ejection fraction (RVEF), lower peak ejection rate (PER), peak filling rate (PFR) and PFR indexed to end-diastolic volume (PFR/EDV) compared to healthy controls. Eighty-three subjects with rTOF had arrhythmia (63 atrial, 47 ventricular) and 11 died. Left atrial (LA) volumes, time to peak filling rate (tPFR), and PFR/EDV were associated with arrhythmia on univariate analysis. PER/EDV was associated with ventricular (Odds ratio, OR 0.43 [0.24-0.80], p = 0.007) and total arrhythmia (OR 0.56 [0.37-0.92], p = 0.021) burden. A multivariable predictive model including diastolic covariates showed improved prediction for arrhythmia compared to clinical and conventional CMR measures (area under curve (AUC) 0.749 v. 0.685 for overall arrhythmia). PFR/EDV was decreased and tPFR was increased in rTOF subjects with mortality as compared to those without mortality. CONCLUSIONS Subjects with rTOF have abnormal LV diastolic function compared to healthy controls. Indices of LV diastolic function were associated with arrhythmia and mortality. CMR diastolic indices may be helpful in risk stratification for arrhythmia.
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Affiliation(s)
- Sandra D Kikano
- Thomas P. Graham Division of Pediatric Cardiology Monroe Carell Jr Children's Hospital at Vanderbilt University, 2200 Children's Way Suite 5230, Doctors' Office Tower, Nashville, TN, 37232-9119, USA.
| | - Angela Weingarten
- Thomas P. Graham Division of Pediatric Cardiology Monroe Carell Jr Children's Hospital at Vanderbilt University, 2200 Children's Way Suite 5230, Doctors' Office Tower, Nashville, TN, 37232-9119, USA
| | - Sudeep D Sunthankar
- Thomas P. Graham Division of Pediatric Cardiology Monroe Carell Jr Children's Hospital at Vanderbilt University, 2200 Children's Way Suite 5230, Doctors' Office Tower, Nashville, TN, 37232-9119, USA
| | - William McEachern
- Thomas P. Graham Division of Pediatric Cardiology Monroe Carell Jr Children's Hospital at Vanderbilt University, 2200 Children's Way Suite 5230, Doctors' Office Tower, Nashville, TN, 37232-9119, USA
| | - Kristen George-Durett
- Thomas P. Graham Division of Pediatric Cardiology Monroe Carell Jr Children's Hospital at Vanderbilt University, 2200 Children's Way Suite 5230, Doctors' Office Tower, Nashville, TN, 37232-9119, USA
| | - David A Parra
- Thomas P. Graham Division of Pediatric Cardiology Monroe Carell Jr Children's Hospital at Vanderbilt University, 2200 Children's Way Suite 5230, Doctors' Office Tower, Nashville, TN, 37232-9119, USA
| | - Jonathan H Soslow
- Thomas P. Graham Division of Pediatric Cardiology Monroe Carell Jr Children's Hospital at Vanderbilt University, 2200 Children's Way Suite 5230, Doctors' Office Tower, Nashville, TN, 37232-9119, USA
| | - Joshua D Chew
- Thomas P. Graham Division of Pediatric Cardiology Monroe Carell Jr Children's Hospital at Vanderbilt University, 2200 Children's Way Suite 5230, Doctors' Office Tower, Nashville, TN, 37232-9119, USA
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Xue H, Artico J, Davies RH, Adam R, Shetye A, Augusto JB, Bhuva A, Fröjdh F, Wong TC, Fukui M, Cavalcante JL, Treibel TA, Manisty C, Fontana M, Ugander M, Moon JC, Schelbert EB, Kellman P. Automated In-Line Artificial Intelligence Measured Global Longitudinal Shortening and Mitral Annular Plane Systolic Excursion: Reproducibility and Prognostic Significance. J Am Heart Assoc 2022; 11:e023849. [PMID: 35132872 PMCID: PMC9245823 DOI: 10.1161/jaha.121.023849] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 01/04/2022] [Indexed: 12/25/2022]
Abstract
Background Global longitudinal shortening (GL-Shortening) and the mitral annular plane systolic excursion (MAPSE) are known markers in heart failure patients, but measurement may be subjective and less frequently reported because of the lack of automated analysis. Therefore, a validated, automated artificial intelligence (AI) solution can be of strong clinical interest. Methods and Results The model was implemented on cardiac magnetic resonance scanners with automated in-line processing. Reproducibility was evaluated in a scan-rescan data set (n=160 patients). The prognostic association with adverse events (death or hospitalization for heart failure) was evaluated in a large patient cohort (n=1572) and compared with feature tracking global longitudinal strain measured manually by experts. Automated processing took ≈1.1 seconds for a typical case. On the scan-rescan data set, the model exceeded the precision of human expert (coefficient of variation 7.2% versus 11.1% for GL-Shortening, P=0.0024; 6.5% versus 9.1% for MAPSE, P=0.0124). The minimal detectable change at 90% power was 2.53 percentage points for GL-Shortening and 1.84 mm for MAPSE. AI GL-Shortening correlated well with manual global longitudinal strain (R2=0.85). AI MAPSE had the strongest association with outcomes (χ2, 255; hazard ratio [HR], 2.5 [95% CI, 2.2-2.8]), compared with AI GL-Shortening (χ2, 197; HR, 2.1 [95% CI,1.9-2.4]), manual global longitudinal strain (χ2, 192; HR, 2.1 [95% CI, 1.9-2.3]), and left ventricular ejection fraction (χ2, 147; HR, 1.8 [95% CI, 1.6-1.9]), with P<0.001 for all. Conclusions Automated in-line AI-measured MAPSE and GL-Shortening can deliver immediate and highly reproducible results during cardiac magnetic resonance scanning. These results have strong associations with adverse outcomes that exceed those of global longitudinal strain and left ventricular ejection fraction.
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Affiliation(s)
- Hui Xue
- National Heart, Lung, and Blood InstituteNational Institutes of HealthBethesdaMD
| | - Jessica Artico
- Barts Heart CentreBarts Health NHS TrustLondonUnited Kingdom
- University Hospital and University of TriesteTriesteItaly
| | | | - Robert Adam
- Barts Heart CentreBarts Health NHS TrustLondonUnited Kingdom
| | - Abhishek Shetye
- Barts Heart CentreBarts Health NHS TrustLondonUnited Kingdom
| | - João B. Augusto
- Barts Heart CentreBarts Health NHS TrustLondonUnited Kingdom
- University College LondonLondonUnited Kingdom
| | - Anish Bhuva
- Barts Heart CentreBarts Health NHS TrustLondonUnited Kingdom
| | - Fredrika Fröjdh
- Department of Clinical PhysiologyKarolinska University Hospital, and Karolinska InstituteStockholmSweden
| | - Timothy C. Wong
- UPMC Cardiovascular Magnetic Resonance CenterUPMCPittsburghPA
- Department of MedicineUniversity of Pittsburgh School of MedicinePittsburghPA
- Heart and Vascular InstituteUPMCPittsburghPA
- Clinical and Translational Science InstituteUniversity of PittsburghPittsburghPA
| | - Miho Fukui
- Minneapolis Heart InstituteAbbott Northwestern HospitalMinneapolisMN
| | | | | | | | - Marianna Fontana
- University College LondonLondonUnited Kingdom
- Royal Free HospitalNHS TrustLondonUnited Kingdom
| | - Martin Ugander
- Department of Clinical PhysiologyKarolinska University Hospital, and Karolinska InstituteStockholmSweden
- Kolling InstituteRoyal North Shore Hospital, and Charles Perkins CentreFaculty of Medicine and HealthUniversity of SydneySydneyAustralia
| | - James C. Moon
- Barts Heart CentreBarts Health NHS TrustLondonUnited Kingdom
| | - Erik B. Schelbert
- Minneapolis Heart Institute, United HospitalSt. Paul, Minnesota and Abbott Northwestern HospitalMinneapolisMN
| | - Peter Kellman
- National Heart, Lung, and Blood InstituteNational Institutes of HealthBethesdaMD
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O'Brien AC, MacDermott R, Keane S, Ryan D, McVeigh N, Durand R, Ferre M, Murphy DJ, Teekakirikul P, Keane D, McDonald K, Ledwidge M, Dodd JD. Cardiac MRI e-prime Predicts Myocardial Late Gadolinium Enhancement and Diastolic Dysfunction in Hypertrophic Cardiomyopathy. Eur J Radiol 2022; 149:110192. [DOI: 10.1016/j.ejrad.2022.110192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/27/2022] [Accepted: 01/29/2022] [Indexed: 11/17/2022]
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Gonzales RA, Seemann F, Lamy J, Mojibian H, Atar D, Erlinge D, Steding-Ehrenborg K, Arheden H, Hu C, Onofrey JA, Peters DC, Heiberg E. MVnet: automated time-resolved tracking of the mitral valve plane in CMR long-axis cine images with residual neural networks: a multi-center, multi-vendor study. J Cardiovasc Magn Reson 2021; 23:137. [PMID: 34857009 PMCID: PMC8638514 DOI: 10.1186/s12968-021-00824-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 10/20/2021] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Mitral annular plane systolic excursion (MAPSE) and left ventricular (LV) early diastolic velocity (e') are key metrics of systolic and diastolic function, but not often measured by cardiovascular magnetic resonance (CMR). Its derivation is possible with manual, precise annotation of the mitral valve (MV) insertion points along the cardiac cycle in both two and four-chamber long-axis cines, but this process is highly time-consuming, laborious, and prone to errors. A fully automated, consistent, fast, and accurate method for MV plane tracking is lacking. In this study, we propose MVnet, a deep learning approach for MV point localization and tracking capable of deriving such clinical metrics comparable to human expert-level performance, and validated it in a multi-vendor, multi-center clinical population. METHODS The proposed pipeline first performs a coarse MV point annotation in a given cine accurately enough to apply an automated linear transformation task, which standardizes the size, cropping, resolution, and heart orientation, and second, tracks the MV points with high accuracy. The model was trained and evaluated on 38,854 cine images from 703 patients with diverse cardiovascular conditions, scanned on equipment from 3 main vendors, 16 centers, and 7 countries, and manually annotated by 10 observers. Agreement was assessed by the intra-class correlation coefficient (ICC) for both clinical metrics and by the distance error in the MV plane displacement. For inter-observer variability analysis, an additional pair of observers performed manual annotations in a randomly chosen set of 50 patients. RESULTS MVnet achieved a fast segmentation (<1 s/cine) with excellent ICCs of 0.94 (MAPSE) and 0.93 (LV e') and a MV plane tracking error of -0.10 ± 0.97 mm. In a similar manner, the inter-observer variability analysis yielded ICCs of 0.95 and 0.89 and a tracking error of -0.15 ± 1.18 mm, respectively. CONCLUSION A dual-stage deep learning approach for automated annotation of MV points for systolic and diastolic evaluation in CMR long-axis cine images was developed. The method is able to carefully track these points with high accuracy and in a timely manner. This will improve the feasibility of CMR methods which rely on valve tracking and increase their utility in a clinical setting.
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Affiliation(s)
- Ricardo A. Gonzales
- Clinical Physiology, Department of Clinical Sciences, Lund University, Skåne University Hospital, Lund, Sweden
- Department of Radiology and Biomedical Imaging, Yale School of Medicine, Yale University, New Haven, Connecticut United States of America
- Department of Electrical Engineering, Universidad de Ingeniería y Tecnología, Lima, Peru
| | - Felicia Seemann
- Clinical Physiology, Department of Clinical Sciences, Lund University, Skåne University Hospital, Lund, Sweden
- Department of Radiology and Biomedical Imaging, Yale School of Medicine, Yale University, New Haven, Connecticut United States of America
- Department of Biomedical Engineering, Lund University, Lund, Sweden
| | - Jérôme Lamy
- Department of Radiology and Biomedical Imaging, Yale School of Medicine, Yale University, New Haven, Connecticut United States of America
| | - Hamid Mojibian
- Department of Radiology and Biomedical Imaging, Yale School of Medicine, Yale University, New Haven, Connecticut United States of America
| | - Dan Atar
- Department of Cardiology B, Oslo University Hospital Ullevål and Faculty of Medicine, University of Oslo, Oslo, Norway
| | - David Erlinge
- Department of Cardiology, Clinical Sciences, Lund University, Skåne University Hospital, Lund, Sweden
| | - Katarina Steding-Ehrenborg
- Clinical Physiology, Department of Clinical Sciences, Lund University, Skåne University Hospital, Lund, Sweden
| | - Håkan Arheden
- Clinical Physiology, Department of Clinical Sciences, Lund University, Skåne University Hospital, Lund, Sweden
| | - Chenxi Hu
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - John A. Onofrey
- Department of Radiology and Biomedical Imaging, Yale School of Medicine, Yale University, New Haven, Connecticut United States of America
- Department of Urology, Yale School of Medicine, Yale University, New Haven, Connecticut United States of America
- Department of Biomedical Engineering, Yale University, New Haven, Connecticut United States of America
| | - Dana C. Peters
- Department of Radiology and Biomedical Imaging, Yale School of Medicine, Yale University, New Haven, Connecticut United States of America
| | - Einar Heiberg
- Clinical Physiology, Department of Clinical Sciences, Lund University, Skåne University Hospital, Lund, Sweden
- Department of Biomedical Engineering, Lund University, Lund, Sweden
- Wallenberg Center for Molecular Medicine, Lund University, Lund, Sweden
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Ribeiro SM, Azevedo Filho CFD, Sampaio R, Tarasoutchi F, Grinberg M, Kalil-Filho R, Rochitte CE. Longitudinal Shortening of the Left Ventricle by Cine-CMR for Assessment of Diastolic Function in Patients with Aortic Valve Disease. Arq Bras Cardiol 2019; 114:284-292. [PMID: 31553387 PMCID: PMC7077567 DOI: 10.5935/abc.20190193] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 05/15/2019] [Indexed: 01/19/2023] Open
Abstract
Background Diastolic dysfunction, commonly evaluated by echocardiography, is an important early finding in many cardiomyopathies. Cardiac magnetic resonance (CMR) often requires specialized sequences that extends the test time. Recently, feature-tracking imaging has been made available, but still requires expensive software and lacks clinical validation. Objective To assess diastolic function in patients with aortic valve disease (AVD) and compare it with normal controls by evaluating left ventricular (LV) longitudinal displacement by CMR. Methods We compared 26 AVD patients with 19 normal controls. Diastolic function was evaluated as LV longitudinal displacement in 4-chamber view cine-CMR images using steady state free precession (SSFP) sequence during the entire cardiac cycle with temporal resolution < 50 ms. The resulting plot of atrioventricular junction (AVJ) position versus time generated variables of AVJ motion. Significance level of p < 0.05 was used. Results Maximum longitudinal displacement (0.12 vs. 0.17 cm), maximum velocity during early diastole (MVED, 0.6 vs. 1.4s-1), slope of the best-fit line of displacement in diastasis (VDS, 0.22 vs. 0.03s-1), and VDS/MVED ratio (0.35 vs. 0.02) were significantly reduced in AVD patients compared with controls, respectively. Aortic regurgitation showed significantly worse longitudinal LV shortening compared with aortic stenosis. Higher LV mass indicated worse diastolic dysfunction. Conclusions A simple linear measurement detected significant differences on LV diastolic function between AVD patients and controls. LV mass was the only independent predictor of diastolic dysfunction in these patients. This method can help in the evaluation of diastolic dysfunction, improving cardiomyopathy detection by CMR, without prolonging exam time or depending on expensive software.
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Affiliation(s)
| | | | - Roney Sampaio
- Instituto do Coração (InCor) - Universidade de São Paulo (USP), São Paulo, SP - Brazil
| | - Flávio Tarasoutchi
- Instituto do Coração (InCor) - Universidade de São Paulo (USP), São Paulo, SP - Brazil
| | - Max Grinberg
- Instituto do Coração (InCor) - Universidade de São Paulo (USP), São Paulo, SP - Brazil
| | - Roberto Kalil-Filho
- Instituto do Coração (InCor) - Universidade de São Paulo (USP), São Paulo, SP - Brazil
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Gufler H, Niefeldt S, Boltze J, Prietz S, Klopsch C, Wagner S, Vollmar B, Yerebakan C. Right Ventricular Function After Pulmonary Artery Banding: Adaptive Processes Assessed by CMR and Conductance Catheter Measurements in Sheep. J Cardiovasc Transl Res 2019; 12:459-466. [PMID: 30847657 DOI: 10.1007/s12265-019-09881-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Accepted: 02/26/2019] [Indexed: 01/23/2023]
Abstract
This experimental study describes the adaptive processes of the right ventricular (RV) myocardium after pulmonary artery banding (PAB) evaluated by cine cardiac magnetic resonance (CMR), phase-contrast CMR (PC-CMR), and conductance catheter. Seven sheep were subjected to CMR 3 months after PAB. Conductance catheter measurements were performed before and 3 months after PAB. Four nonoperated, healthy, age-matched animals served as controls. Higher RV masses (p < 0.01), elevated RV end-systolic volumes (p < 0.05), and lower RV ejection fraction (p < 0.01) were observed in the operated group. The time-to-peak pulmonary artery flow was longer in the banding group (p < 0.01). RV maximal pressure and RV end-diastolic pressure correlated with the time-to-peak flow in the pulmonary artery (r = - 0.70 and - 0.69, respectively). In summary, PAB caused RV hypertrophy, increased myocardial contractility, and decreased RV-EF and cardiac output. The time-to-peak pulmonary artery flow correlated with RV pressures.
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Affiliation(s)
- Hubert Gufler
- Department of Diagnostic and Interventional Radiology, University Clinic, Schillingallee 35, 10857, Rostock, Germany. .,Clinic and Policlinic of Radiology, Martin-Luther University Halle-Wittenberg, Ernst-Grube-Str. 40, 06120, Halle, Germany.
| | - Sabine Niefeldt
- Department of Cardiac Surgery, University Clinic, Schillingallee 35, 10857, Rostock, Germany
| | - Johannes Boltze
- Fraunhofer Research Institution for Marine Biotechnology, Department of Medical Cell Technology and Institute for Medical and Marine Biotechnology, University of Lübeck, Lübeck, Germany.,University of Warwick, School of Life Science, Gibbet Hill Road, CV4 7AL, Coventry, United Kingdom
| | - Stephanie Prietz
- Department of Cardiac Surgery, University Clinic, Schillingallee 35, 10857, Rostock, Germany
| | - Christian Klopsch
- Department of Cardiac Surgery, University Clinic, Schillingallee 35, 10857, Rostock, Germany
| | - Sabine Wagner
- Department of Diagnostic and Interventional Radiology, University Clinic, Schillingallee 35, 10857, Rostock, Germany
| | - Brigitte Vollmar
- Institute for Experimental Surgery, Rostock University Medical Center, Schillingallee 69a, 18057, Rostock, Germany
| | - Can Yerebakan
- Department of Cardiac Surgery, University Clinic, Schillingallee 35, 10857, Rostock, Germany
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Thavendiranathan P, Guetter C, da Silveira JS, Lu X, Scandling D, Xue H, Jolly MP, Raman SV, Simonetti OP. Mitral annular velocity measurement with cardiac magnetic resonance imaging using a novel annular tracking algorithm: Validation against echocardiography. Magn Reson Imaging 2019; 55:72-80. [PMID: 30172940 PMCID: PMC6330889 DOI: 10.1016/j.mri.2018.08.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 08/27/2018] [Indexed: 01/08/2023]
Abstract
BACKGROUND Doppler based mitral annular velocities are an integral part of echocardiographic left ventricular diastolic function assessment. Although these measurements can be obtained by phase contrast cardiac magnetic resonance imaging (PC-CMR), this approach has limitations. The aims of this study were to assess the accuracy and reproducibility of a high temporal resolution steady-state free precession (SSFP) cine acquisition coupled with semi-automated mitral annular tracking to measure tissue velocity, and compare to echocardiography as the reference method. METHODS High temporal resolution (17 ms) 4-chamber cines were acquired in 25 volunteers using retrospective and prospective gating on a 3.0 T magnet. Mitral annular early (e') and late (a') tissue velocities were derived using a novel algorithm to semi-automatically detect the mitral valve insertion points and track its motion. Additionally, PC-CMR was used to measure mitral inflow early diastolic (E) velocity. Those measurements were also obtained using echocardiography based pulsed and tissue Doppler techniques, on the same day. RESULTS Subjects were on average 34 ± 14 years-old (48% male). The lateral annulus e' measurements had the best agreement with echocardiography with a concordance correlation coefficient (CCC) of 0.76 and 0.75 for prospectively and retrospectively gated cine CMR respectively. There was no significant difference in the lateral annular tissue velocities between echocardiography (13.8 ± 3.7 cm/s) and prospective (13.4 ± 3.7 cm/s) or retrospective (14.0 ± 3.7) acquisitions. Similarly, CMR measurement of E/e' (a surrogate marker for LV filling pressures) using the lateral e' velocity showed moderate agreement with echocardiography (CCC of 0.56 and 0.51 for prospective and retrospective acquisitions respectively) without a significant difference in ratios (5.3 ± 1.6 and 5.0 ± 1.3) compared to echocardiography (5.2 ± 1.4). Intra- and inter-observer reproducibility of the CMR-based annular velocity measurements was good. CONCLUSION Measurements of mitral annular tissue velocities can be obtained from SSFP 4-chamber cine images using a semi-automated annular tracking algorithm, and demonstrates moderate agreement with echocardiography. The semi-automated method can provide quantitative mitral annular velocity measurements directly from conventional cine images, thereby providing additional clinically relevant information. The accuracy of this method in patients with diastolic dysfunction remains to be determined.
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Affiliation(s)
- Paaladinesh Thavendiranathan
- The Ohio State University, Columbus, OH, USA; Toronto General Hospital, Peter Munk Cardiac Center, University of Toronto, Toronto, ON, Canada.
| | - Christoph Guetter
- Siemens Medical Solutions, Medical Imaging Technologies, Princeton, NJ, USA.
| | | | - Xiaoguang Lu
- Siemens Medical Solutions, Medical Imaging Technologies, Princeton, NJ, USA.
| | | | | | - Marie-Pierre Jolly
- Siemens Medical Solutions, Medical Imaging Technologies, Princeton, NJ, USA.
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Leng S, Zhao X, Koh AS, Zhao L, Allen JC, Tan RS, Ma X, Zhong L. Age-related changes in four-dimensional CMR-derived atrioventricular junction velocities and displacements: Implications for the identification of altered annular dynamics for ventricular function assessment. IJC HEART & VASCULATURE 2018; 22:6-12. [PMID: 30480084 PMCID: PMC6240643 DOI: 10.1016/j.ijcha.2018.11.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 11/02/2018] [Indexed: 11/16/2022]
Abstract
Background We determined the age-related changes in atrioventricular junction (AVJ) velocities and displacements by feature tracking cardiovascular magnetic resonance (FT-CMR) in a healthy community-based population. We also investigated the importance of age-matching for the identification of altered AVJ dynamics. Methods FT-CMR was performed in 230 controls (18-78 years) and in two patient groups each consisting of 40 subjects (group 1: 23-55 years, group 2: 56-80 years). AVJ dynamic parameters, including systolic velocity Sm, early diastolic velocity Em, late diastolic velocity Am, maximal systolic excursion MAPSE and the new parameter sweep surface area velocity SSAV were measured. Results Increasing age in the control group was significantly associated with reductions in Sm, Em, MAPSE (r = -0.40, -0.76, -0.34, all P < 0.001) and an increase in Am (r = 0.45, P < 0.001). For patient group 1, the selection of an age-unmatched control group (56-76 years) underestimated the number of patients with abnormal AVJ dynamics during systole and early diastole (38% vs. 70% for Sm; 20% vs. 60% for Em; 35% vs. 50% for MAPSE). In contrast, for patient group 2, the number of patients with systolic and early diastolic AVJ dynamic abnormalities was overestimated (88% vs. 63% for Sm; 90% vs. 68% for Em; 73% vs. 58% for MAPSE) when compared with age-unmatched controls (24-55 years). Fifty-percent (20/40) of the sub-group of patients with normal left ventricular ejection fraction exhibited abnormal systolic Sm or MAPSE measurements. Conclusions Significant correlations exist between age and AVJ dynamics. Age matching is important for evaluating AVJ long-axis function.
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Affiliation(s)
- Shuang Leng
- National Heart Research Institute Singapore, National Heart Centre Singapore, 5 Hospital Drive, Singapore 169609, Singapore
| | - Xiaodan Zhao
- National Heart Research Institute Singapore, National Heart Centre Singapore, 5 Hospital Drive, Singapore 169609, Singapore
| | - Angela S Koh
- National Heart Research Institute Singapore, National Heart Centre Singapore, 5 Hospital Drive, Singapore 169609, Singapore.,Duke-NUS Medical School, 8 College Road, Singapore 169857, Singapore
| | - Lei Zhao
- Beijing Anzhen Hospital, 2 Anzhen Road, Chaoyang District, Beijing 100029, China
| | - John C Allen
- Duke-NUS Medical School, 8 College Road, Singapore 169857, Singapore
| | - Ru-San Tan
- National Heart Research Institute Singapore, National Heart Centre Singapore, 5 Hospital Drive, Singapore 169609, Singapore.,Duke-NUS Medical School, 8 College Road, Singapore 169857, Singapore
| | - Xiaohai Ma
- Beijing Anzhen Hospital, 2 Anzhen Road, Chaoyang District, Beijing 100029, China
| | - Liang Zhong
- National Heart Research Institute Singapore, National Heart Centre Singapore, 5 Hospital Drive, Singapore 169609, Singapore.,Duke-NUS Medical School, 8 College Road, Singapore 169857, Singapore
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10
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Seemann F, Baldassarre LA, Llanos‐Chea F, Gonzales RA, Grunseich K, Hu C, Sugeng L, Meadows J, Heiberg E, Peters DC. Assessment of diastolic function and atrial remodeling by MRI - validation and correlation with echocardiography and filling pressure. Physiol Rep 2018; 6:e13828. [PMID: 30187654 PMCID: PMC6125607 DOI: 10.14814/phy2.13828] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 07/18/2018] [Indexed: 12/31/2022] Open
Abstract
Atrial fibrosis can be estimated noninvasively by magnetic resonance imaging (MRI) using late gadolinium enhancement (LGE), but diastolic dysfunction is clinically assessed by transthoracic echocardiography (TTE), and rarely by MRI. This study aimed to evaluate well-established diastolic parameters using MRI, and validate them with TTE and left ventricular (LV) filling pressures, and to study the relationship between left atrial (LA) remodeling and parameters of diastolic function. The study retrospectively included 105 patients (53 ± 16 years, 39 females) who underwent 3D LGE MRI between 2012 and 2016. Medical charts were reviewed for the echocardiographic diastolic parameters E, A, and e' by TTE, and pressure catheterizations. E and A were measured from in-plane phase-contrast cardiac MRI images, and e' by feature-tracking, and validated with TTE. Interobserver and intraobserver variability was examined. Furthermore, LA volumes, function, and atrial LGE was correlated with diastolic parameters. Evaluation of e' in MRI had strong agreement with TTE (r = 0.75, P < 0.0001), and low interobserver and intraobserver variability. E and A by TTE showed strong agreement to MRI (r = 0.77, P = 0.001; r = 0.73, P = 0.003, for E and A, respectively). Agreement between E/e' by TTE and MRI was strong (r = 0.85, P = 0.0004), and E/e' by TTE correlated moderately to invasive pressures (r = 0.59, P = 0.03). There was a strong relationship between LA LGE and pulmonary capillary wedge pressure (r = 0.81, P = 0.01). In conclusion, diastolic parameters can be measured with good reproducibility by cardiovascular MRI. LA LGE exhibited a strong relationship with pulmonary capillary wedge pressure, an indicator of diastolic function.
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Affiliation(s)
- Felicia Seemann
- Department of Radiology and Biomedical ImagingYale UniversityNew HavenConnecticut
- Department of Clinical PhysiologySkane University HospitalLund UniversityLundSweden
- Department of Biomedical EngineeringFaculty of EngineeringLund UniversityLundSweden
| | - Lauren A. Baldassarre
- Department of Radiology and Biomedical ImagingYale UniversityNew HavenConnecticut
- Department of CardiologyYale UniversityNew HavenConnecticut
| | | | - Ricardo A. Gonzales
- Department of Radiology and Biomedical ImagingYale UniversityNew HavenConnecticut
- Department of Electrical EngineeringUniversidad de Ingenieria y Tecnologia ‐ UTECLimaPeru
| | - Karl Grunseich
- Department of Radiology and Biomedical ImagingYale UniversityNew HavenConnecticut
- San Francisco Department of Radiology and Biomedical ImagingUniversity of CaliforniaSan FranciscoCalifornia
| | - Chenxi Hu
- Department of Radiology and Biomedical ImagingYale UniversityNew HavenConnecticut
| | - Lissa Sugeng
- Section of Cardiovascular MedicineDepartment of MedicineYale UniversityNew HavenConnecticut
| | - Judith Meadows
- Section of Cardiovascular MedicineDepartment of MedicineYale UniversityNew HavenConnecticut
| | - Einar Heiberg
- Department of Clinical PhysiologySkane University HospitalLund UniversityLundSweden
- Department of Biomedical EngineeringFaculty of EngineeringLund UniversityLundSweden
- Wallenberg Center for Molecular MedicineLund UniversityLundSweden
| | - Dana C. Peters
- Department of Radiology and Biomedical ImagingYale UniversityNew HavenConnecticut
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11
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Leng S, Zhang S, Jiang M, Zhao X, Wu R, Allen J, He B, Tan RS, Zhong L. Imaging 4D morphology and dynamics of mitral annulus in humans using cardiac cine MR feature tracking. Sci Rep 2018; 8:81. [PMID: 29311562 PMCID: PMC5758818 DOI: 10.1038/s41598-017-18354-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Accepted: 12/11/2017] [Indexed: 12/19/2022] Open
Abstract
Feature tracking in cine cardiac magnetic resonance (CMR) is a quantitative technique to assess heart structure and function. We investigated 4-dimensional (4D) dynamics and morphology of the mitral annulus (MA) using a novel tracking system based on radially rotational long-axis cine CMR series. A total of 30 normal controls and patients with mitral regurgitation were enrolled. The spatiotemporal changes of the MA were characterized by an in-house developed program. Dynamic and morphological parameters extracted from all 18 radial slices were used as references and were compared with those from subsequently generated sub-datasets with different degrees of sparsity. An excellent agreement was found among all datasets including routine 2-, 3- and 4-chamber views for MA dynamics such as peak systolic velocity (Sm) and mitral annular plane systolic excursion (MAPSE). MA morphology for size and shape was addressed adequately by as few as 6 radial slices, but poorly by only three routine views. Patients with regurgitation showed significantly reduced mitral dynamics and mild annular deformation, which was consistent between three routine views and 18 reference slices. In conclusion, feature tracking cine CMR provided a comprehensive and distinctive profile for 4D MA dynamics and morphology, which may help in studying different cardiac diseases.
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Affiliation(s)
- Shuang Leng
- National Heart Research Institute Singapore, National Heart Centre, Singapore, 5 Hospital Drive, 169609, Singapore
| | - Shuo Zhang
- National Heart Research Institute Singapore, National Heart Centre, Singapore, 5 Hospital Drive, 169609, Singapore.,Philips Healthcare, 622 Lorong 1, Toa Payoh, 319763, Singapore, Singapore
| | - Meng Jiang
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200001, People's Republic of China
| | - Xiaodan Zhao
- National Heart Research Institute Singapore, National Heart Centre, Singapore, 5 Hospital Drive, 169609, Singapore
| | - Rui Wu
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200001, People's Republic of China
| | - John Allen
- Duke-NUS Medical School, 8 College Road, Singapore, 169857, Singapore
| | - Ben He
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200001, People's Republic of China
| | - Ru San Tan
- National Heart Research Institute Singapore, National Heart Centre, Singapore, 5 Hospital Drive, 169609, Singapore.,Duke-NUS Medical School, 8 College Road, Singapore, 169857, Singapore
| | - Liang Zhong
- National Heart Research Institute Singapore, National Heart Centre, Singapore, 5 Hospital Drive, 169609, Singapore. .,Duke-NUS Medical School, 8 College Road, Singapore, 169857, Singapore.
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12
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Ochs MM, Fritz T, Arenja N, Riffel J, Andre F, Mereles D, Siepen FAD, Hegenbart U, Schönland S, Katus HA, Friedrich MGW, Buss SJ. Regional differences in prognostic value of cardiac valve plane displacement in systemic light-chain amyloidosis. J Cardiovasc Magn Reson 2017; 19:87. [PMID: 29121956 PMCID: PMC5680757 DOI: 10.1186/s12968-017-0402-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Accepted: 10/16/2017] [Indexed: 01/29/2023] Open
Abstract
BACKGROUND To compare the prognostic value of cardiac valve plane displacement (CVPD) on various locations in cardiac light chain (AL) amyloidosis. METHODS Consecutive patients with biopsy-proven cardiac involvement in AL amyloidosis who had undergone cardiovascular magnetic resonance (CMR) between 2005 and 2014 in our institution, were retrospectively identified and data analyzed. The primary combined endpoint was all-cause mortality or heart transplantation. Systolic CVPD were obtained from standard cine bSSFP in 2-, 3- and 4-chamber views at anterior aortic plane systolic excursion (AAPSE); anterior, anterolateral, inferolateral, inferior, inferoseptal mitral (MAPSE); and lateral tricuspid (TAPSE) annular segments. RESULTS We identified 68 patients (58 ± 10 years; 59% male). Median follow-up period was 1.2 years (IQR, 0.3-4.1). Significant differences in CVPD between patients who reached a primary endpoint (n = 44) and transplant-free survivors were found only for AAPSE (6.1 mm (IQR, 4.6-9.4) vs. 8.8 mm (IQR, 6.9-10.4); p = 0.02) and MAPSEanterolateral (7.3 mm (IQR, 5.4-11.7) vs. 10.5 mm (IQR, 8.1-13.4); p = 0.03). AAPSE (χ2 = 15.6; p = 0.0002) provided the best predictive value for transplant-free survival compared to all other valvular plane locations. A high-risk cutoff (AAPSE ≤ 7.6 mm) was calculated by ROC analysis to predict all-cause death or heart transplantation within 6 months from index examination (AUC = 0.80; CI: 0.68 to 0.89; p < 0.0001). AAPSE added incremental prognostic power to an imaging prediction model of late gadolinium enhancement and global longitudinal strain (GLS) (∆χ2 = 5.8, p = 0.02) as well as to a clinical model including Karnofsky index and NT-proBNP (∆χ2 = 6.2, p = 0.01). CONCLUSION In patients with cardiac involvement in AL amyloidosis, systolic CVPD obtained from standard long axis cine views appear to indicate outcome better, when obtained in the anterior aortic plane (AAPSE) and provide incremental prognostic value to LGE and strain measurements.
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Affiliation(s)
- Marco M. Ochs
- Department of Cardiology, University of Heidelberg, INF 410, 69120 Heidelberg, Germany
| | - Thomas Fritz
- Department of Cardiology, University of Heidelberg, INF 410, 69120 Heidelberg, Germany
| | - Nisha Arenja
- Department of Cardiology, University of Heidelberg, INF 410, 69120 Heidelberg, Germany
| | - Johannes Riffel
- Department of Cardiology, University of Heidelberg, INF 410, 69120 Heidelberg, Germany
| | - Florian Andre
- Department of Cardiology, University of Heidelberg, INF 410, 69120 Heidelberg, Germany
| | - Derliz Mereles
- Department of Cardiology, University of Heidelberg, INF 410, 69120 Heidelberg, Germany
| | - Fabian aus dem Siepen
- Department of Cardiology, University of Heidelberg, INF 410, 69120 Heidelberg, Germany
| | - Ute Hegenbart
- Department of Hematooncology, University of Heidelberg, INF 410, 69120 Heidelberg, Germany
| | - Stefan Schönland
- Department of Hematooncology, University of Heidelberg, INF 410, 69120 Heidelberg, Germany
| | - Hugo A. Katus
- Department of Cardiology, University of Heidelberg, INF 410, 69120 Heidelberg, Germany
| | | | - Sebastian J. Buss
- Department of Cardiology, University of Heidelberg, INF 410, 69120 Heidelberg, Germany
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13
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Seemann F, Pahlm U, Steding-Ehrenborg K, Ostenfeld E, Erlinge D, Dubois-Rande JL, Jensen SE, Atar D, Arheden H, Carlsson M, Heiberg E. Time-resolved tracking of the atrioventricular plane displacement in Cardiovascular Magnetic Resonance (CMR) images. BMC Med Imaging 2017; 17:19. [PMID: 28241751 PMCID: PMC5330030 DOI: 10.1186/s12880-017-0189-5] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2016] [Accepted: 02/16/2017] [Indexed: 11/20/2022] Open
Abstract
Background Atrioventricular plane displacement (AVPD) is an indicator for systolic and diastolic function and accounts for 60% of the left ventricular, and 80% of the right ventricular stroke volume. AVPD is commonly measured clinically in echocardiography as mitral and tricuspid annular plane systolic excursion (MAPSE and TAPSE), but has not been applied widely in cardiovascular magnetic resonance (CMR). To date, there is no robust automatic algorithm available that allows the AVPD to be measured clinically in CMR with input in a single timeframe. This study aimed to develop, validate and provide a method that automatically tracks the left and right ventricular AVPD in CMR images, which can be used in the clinical setting or in applied cardiovascular research in multi-center studies. Methods The proposed algorithm is based on template tracking by normalized cross-correlation combined with a priori information by principal component analysis. The AVPD in each timeframe is calculated for the left and right ventricle separately using CMR long-axis cine images of the 2, 3, and 4-chamber views. The algorithm was developed using a training set (n = 40), and validated in a test set (n = 113) of healthy subjects, athletes, and patients after ST-elevation myocardial infarction from 10 centers. Validation was done using manual measurements in end diastole and end systole as reference standard. Additionally, AVPD, peak emptying velocity, peak filling velocity, and atrial contraction was validated in 20 subjects, where time-resolved manual measurements were used as reference standard. Inter-observer variability was analyzed in 20 subjects. Results In end systole, the difference between the algorithm and the reference standard in the left ventricle was (mean ± SD) -0.6 ± 1.9 mm (R = 0.79), and −0.8 ± 2.1 mm (R = 0.88) in the right ventricle. Inter-observer variability in end systole was −0.6 ± 0.7 mm (R = 0.95), and −0.5 ± 1.4 mm (R = 0.95) for the left and right ventricle, respectively. Validation of peak emptying velocity, peak filling velocity, and atrial contraction yielded lower accuracy than the displacement measures. Conclusions The proposed algorithm show good agreement and low bias with the reference standard, and with an agreement in parity with inter-observer variability. Thus, it can be used as an automatic method of tracking and measuring AVPD in CMR. Electronic supplementary material The online version of this article (doi:10.1186/s12880-017-0189-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Felicia Seemann
- Department of Clinical Physiology, Lund University, Skane University Hospital, Lund, Sweden.,Department of Numerical Analysis, Faculty of Engineering, Lund University, Lund, Sweden.,Department of Biomedical Engineering, Faculty of Engineering, Lund University, Lund, Sweden
| | - Ulrika Pahlm
- Department of Clinical Physiology, Lund University, Skane University Hospital, Lund, Sweden
| | - Katarina Steding-Ehrenborg
- Department of Clinical Physiology, Lund University, Skane University Hospital, Lund, Sweden.,Department of Health Sciences, Physiotherapy, Lund University, Lund, Sweden
| | - Ellen Ostenfeld
- Department of Clinical Physiology, Lund University, Skane University Hospital, Lund, Sweden
| | - David Erlinge
- Department of Cardiology, Clinical Sciences, Lund University, Lund, Sweden
| | | | | | - Dan Atar
- Department of Cardiology B, Oslo University Hospital Ullevål and Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Håkan Arheden
- Department of Clinical Physiology, Lund University, Skane University Hospital, Lund, Sweden
| | - Marcus Carlsson
- Department of Clinical Physiology, Lund University, Skane University Hospital, Lund, Sweden
| | - Einar Heiberg
- Department of Clinical Physiology, Lund University, Skane University Hospital, Lund, Sweden. .,Department of Biomedical Engineering, Faculty of Engineering, Lund University, Lund, Sweden.
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14
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Ochs MM, Fritz T, André F, Riffel J, Mereles D, Müller-Hennessen M, Giannitsis E, Katus HA, Friedrich MG, Buss SJ. A comprehensive analysis of cardiac valve plane displacement in healthy adults: age-stratified normal values by cardiac magnetic resonance. Int J Cardiovasc Imaging 2017; 33:721-729. [PMID: 28110433 DOI: 10.1007/s10554-016-1058-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Accepted: 12/28/2016] [Indexed: 11/25/2022]
Abstract
Cardiac valve plane displacement (CVPD) reflects longitudinal LV function. The purpose of the present study was to determine regional heterogeneity of CVPD in healthy adults to provide normal values by cardiac magnetic resonance (CMR). We measured the anterior aortic plane systolic excursion (AAPSE); the anterior, anterolateral, inferolateral, inferior, and inferoseptal mitral annular plane systolic excursion (MAPSE); and the lateral tricuspid annulus plane systolic excursion (TAPSE). Systolic excursion was measured as the distance from peak end-diastolic to peak end-sysstolic annular position (peak-to-peak) in cine images acquired in 2-, 3- and 4-chamber views. Echocardiographic measurements of CVPD were performed in M-Mode as previously described. We retrospectively analyzed 209 healthy Caucasians (57% men), who participated in the Heidelberg normal cohort between March 2009 and September 2014. The analysis was possible in all participants. Mean values were: AAPSE = 14 ± 3 mm (8-20); MAPSEanterior = 14 ± 3 mm (8-20); MAPSEanterolateral = 16 ± 3 mm (10-22); MAPSEinferolateral = 16 ± 3 mm (10-22); MAPSEinferior = 17 ± 3 mm (11-23); MAPSEinferoseptal = 13 ± 3 mm (7-19) and TAPSE = 26 ± 4 mm (18-34) respectively. MAPSE was significantly elevated in lateral compared to septal regions (p = 0.0001). Sex-differences for CVPD were not found. Age-dependency of CVPD revealed distinct regional differences. AAPSE decreased the most with age (B=-0.48; p = 0.0001), whereas MAPSEinferior was the least age-dependent site (B=-0.17; p = 0.01). AAPSE revealed favorable intra-/interobserver reproducibility and interstudy agreement. Intermethod-comparison of CMR and M-Mode echocardiography showed good agreement between both measurements of CVPD. Age-stratified normal values of regional CVPD are provided. AAPSE revealed the most pronounced age-related decrease and provided favorable reproducibility compared to other regions of cardiac valve plane.
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Affiliation(s)
- Marco M Ochs
- Department of Cardiology, University of Heidelberg, INF 410, 69120, Heidelberg, Germany.
| | - Thomas Fritz
- Department of Cardiology, University of Heidelberg, INF 410, 69120, Heidelberg, Germany
| | - Florian André
- Department of Cardiology, University of Heidelberg, INF 410, 69120, Heidelberg, Germany
| | - Johannes Riffel
- Department of Cardiology, University of Heidelberg, INF 410, 69120, Heidelberg, Germany
| | - Derliz Mereles
- Department of Cardiology, University of Heidelberg, INF 410, 69120, Heidelberg, Germany
| | | | - Evangelos Giannitsis
- Department of Cardiology, University of Heidelberg, INF 410, 69120, Heidelberg, Germany
| | - Hugo A Katus
- Department of Cardiology, University of Heidelberg, INF 410, 69120, Heidelberg, Germany
| | - Matthias G Friedrich
- Department of Cardiology, University of Heidelberg, INF 410, 69120, Heidelberg, Germany
| | - Sebastian J Buss
- Department of Cardiology, University of Heidelberg, INF 410, 69120, Heidelberg, Germany
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15
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Pennell DJ, Baksi AJ, Prasad SK, Mohiaddin RH, Alpendurada F, Babu-Narayan SV, Schneider JE, Firmin DN. Review of Journal of Cardiovascular Magnetic Resonance 2015. J Cardiovasc Magn Reson 2016; 18:86. [PMID: 27846914 PMCID: PMC5111217 DOI: 10.1186/s12968-016-0305-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Accepted: 11/02/2016] [Indexed: 12/14/2022] Open
Abstract
There were 116 articles published in the Journal of Cardiovascular Magnetic Resonance (JCMR) in 2015, which is a 14 % increase on the 102 articles published in 2014. The quality of the submissions continues to increase. The 2015 JCMR Impact Factor (which is published in June 2016) rose to 5.75 from 4.72 for 2014 (as published in June 2015), which is the highest impact factor ever recorded for JCMR. The 2015 impact factor means that the JCMR papers that were published in 2013 and 2014 were cited on average 5.75 times in 2015. The impact factor undergoes natural variation according to citation rates of papers in the 2 years following publication, and is significantly influenced by highly cited papers such as official reports. However, the progress of the journal's impact over the last 5 years has been impressive. Our acceptance rate is <25 % and has been falling because the number of articles being submitted has been increasing. In accordance with Open-Access publishing, the JCMR articles go on-line as they are accepted with no collating of the articles into sections or special thematic issues. For this reason, the Editors have felt that it is useful once per calendar year to summarize the papers for the readership into broad areas of interest or theme, so that areas of interest can be reviewed in a single article in relation to each other and other recent JCMR articles. The papers are presented in broad themes and set in context with related literature and previously published JCMR papers to guide continuity of thought in the journal. We hope that you find the open-access system increases wider reading and citation of your papers, and that you will continue to send your quality papers to JCMR for publication.
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Affiliation(s)
- D. J. Pennell
- Cardiovascular Magnetic Resonance Unit, Royal Brompton & Harefield NHS Foundation Trust, Sydney Street, London, SW 3 6NP UK
| | - A. J. Baksi
- Cardiovascular Magnetic Resonance Unit, Royal Brompton & Harefield NHS Foundation Trust, Sydney Street, London, SW 3 6NP UK
| | - S. K. Prasad
- Cardiovascular Magnetic Resonance Unit, Royal Brompton & Harefield NHS Foundation Trust, Sydney Street, London, SW 3 6NP UK
| | - R. H. Mohiaddin
- Cardiovascular Magnetic Resonance Unit, Royal Brompton & Harefield NHS Foundation Trust, Sydney Street, London, SW 3 6NP UK
| | - F. Alpendurada
- Cardiovascular Magnetic Resonance Unit, Royal Brompton & Harefield NHS Foundation Trust, Sydney Street, London, SW 3 6NP UK
| | - S. V. Babu-Narayan
- Cardiovascular Magnetic Resonance Unit, Royal Brompton & Harefield NHS Foundation Trust, Sydney Street, London, SW 3 6NP UK
| | - J. E. Schneider
- Cardiovascular Magnetic Resonance Unit, Royal Brompton & Harefield NHS Foundation Trust, Sydney Street, London, SW 3 6NP UK
| | - D. N. Firmin
- Cardiovascular Magnetic Resonance Unit, Royal Brompton & Harefield NHS Foundation Trust, Sydney Street, London, SW 3 6NP UK
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16
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Leng S, Zhao X, Tan RS, Zhong L. Novel method for atrioventricular motion assessment from three-dimensional cine magnetic resonance imaging. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2016; 2015:319-22. [PMID: 26736264 DOI: 10.1109/embc.2015.7318364] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
This study was carried out to (i) track the motion of six atrioventricular junction (AVJ) sites from the two-, three-, and four-chamber cardiovascular magnetic resonance (CMR) views in 27 healthy subjects, (ii) extract four clinically most useful AVJ velocities (i.e., myocardial systolic velocities Sm1 and Sm2, early diastolic velocity Em, and late diastolic velocity Am) for each AVJ site, and (iii) assess the relationship between CMR measurements to age and gender, and set up preliminary normal reference ranges for CMR derived AVJ velocites stratified by age and gender. The data obtained by CMR based method demonstrated that men had significant higher Sm1 (10.5±3.7 cm/s vs. 7.8±2.5 cm/s, P<;0.05) and Am (10.5±4.5 cm/s vs. 7.7±2.6 cm/s, P<;0.05), but comparable Sm2 (6.6±2.2 cm/s vs. 6.9±1.6 cm/s, P>0.05) and Em (11.2±3.3 cm/s vs. 11.5±4.3 cm/s, P>0.05) than women. There was no significant correlation between Sm1, Sm2 and age, while Em and Am strongly or moderately correlated with age. The lateral, posterolateral and posterior AVJ velocities were significant higher than the ones in septal, anteroseptal and anterior locations. Atrioventricular motion and derived velocities are independent of imaging reference frames, and thereby computationally light-weight. They can be derived by post-processing three-dimensional routine CMR images without additional image acquisition. This shall potentially extend routine CMR's capability for left ventricular (LV) systolic and diastolic function assessment.
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17
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Pennell DJ, Baksi AJ, Prasad SK, Raphael CE, Kilner PJ, Mohiaddin RH, Alpendurada F, Babu-Narayan SV, Schneider J, Firmin DN. Review of Journal of Cardiovascular Magnetic Resonance 2014. J Cardiovasc Magn Reson 2015; 17:99. [PMID: 26589839 PMCID: PMC4654908 DOI: 10.1186/s12968-015-0203-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Accepted: 11/08/2015] [Indexed: 01/19/2023] Open
Abstract
There were 102 articles published in the Journal of Cardiovascular Magnetic Resonance (JCMR) in 2014, which is a 6% decrease on the 109 articles published in 2013. The quality of the submissions continues to increase. The 2013 JCMR Impact Factor (which is published in June 2014) fell to 4.72 from 5.11 for 2012 (as published in June 2013). The 2013 impact factor means that the JCMR papers that were published in 2011 and 2012 were cited on average 4.72 times in 2013. The impact factor undergoes natural variation according to citation rates of papers in the 2 years following publication, and is significantly influenced by highly cited papers such as official reports. However, the progress of the journal's impact over the last 5 years has been impressive. Our acceptance rate is <25% and has been falling because the number of articles being submitted has been increasing. In accordance with Open-Access publishing, the JCMR articles go on-line as they are accepted with no collating of the articles into sections or special thematic issues. For this reason, the Editors have felt that it is useful once per calendar year to summarize the papers for the readership into broad areas of interest or theme, so that areas of interest can be reviewed in a single article in relation to each other and other recent JCMR articles. The papers are presented in broad themes and set in context with related literature and previously published JCMR papers to guide continuity of thought in the journal. We hope that you find the open-access system increases wider reading and citation of your papers, and that you will continue to send your quality papers to JCMR for publication.
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Affiliation(s)
- D J Pennell
- Cardiovascular Biomedical Research Unit, Royal Brompton & Harefield NHS Foundation Trust & Imperial College, Sydney Street, London, SW 3 6NP, UK.
| | - A J Baksi
- Cardiovascular Biomedical Research Unit, Royal Brompton & Harefield NHS Foundation Trust & Imperial College, Sydney Street, London, SW 3 6NP, UK.
| | - S K Prasad
- Cardiovascular Biomedical Research Unit, Royal Brompton & Harefield NHS Foundation Trust & Imperial College, Sydney Street, London, SW 3 6NP, UK.
| | - C E Raphael
- Cardiovascular Biomedical Research Unit, Royal Brompton & Harefield NHS Foundation Trust & Imperial College, Sydney Street, London, SW 3 6NP, UK.
| | - P J Kilner
- Cardiovascular Biomedical Research Unit, Royal Brompton & Harefield NHS Foundation Trust & Imperial College, Sydney Street, London, SW 3 6NP, UK.
| | - R H Mohiaddin
- Cardiovascular Biomedical Research Unit, Royal Brompton & Harefield NHS Foundation Trust & Imperial College, Sydney Street, London, SW 3 6NP, UK.
| | - F Alpendurada
- Cardiovascular Biomedical Research Unit, Royal Brompton & Harefield NHS Foundation Trust & Imperial College, Sydney Street, London, SW 3 6NP, UK.
| | - S V Babu-Narayan
- Cardiovascular Biomedical Research Unit, Royal Brompton & Harefield NHS Foundation Trust & Imperial College, Sydney Street, London, SW 3 6NP, UK.
| | - J Schneider
- Cardiovascular Biomedical Research Unit, Royal Brompton & Harefield NHS Foundation Trust & Imperial College, Sydney Street, London, SW 3 6NP, UK.
| | - D N Firmin
- Cardiovascular Biomedical Research Unit, Royal Brompton & Harefield NHS Foundation Trust & Imperial College, Sydney Street, London, SW 3 6NP, UK.
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18
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Leng S, Zhao XD, Huang FQ, Wong JI, Su BY, Allen JC, Kassab GS, Tan RS, Zhong L. Automated quantitative assessment of cardiovascular magnetic resonance-derived atrioventricular junction velocities. Am J Physiol Heart Circ Physiol 2015; 309:H1923-35. [PMID: 26408537 DOI: 10.1152/ajpheart.00284.2015] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Accepted: 09/23/2015] [Indexed: 11/22/2022]
Abstract
The assessment of atrioventricular junction (AVJ) deformation plays an important role in evaluating left ventricular systolic and diastolic function in clinical practice. This study aims to demonstrate the effectiveness and consistency of cardiovascular magnetic resonance (CMR) for quantitative assessment of AVJ velocity compared with tissue Doppler echocardiography (TDE). A group of 145 human subjects comprising 21 healthy volunteers, 8 patients with heart failure, 17 patients with hypertrophic cardiomyopathy, 52 patients with myocardial infarction, and 47 patients with repaired Tetralogy of Fallot were prospectively enrolled and underwent TDE and CMR scan. Six AVJ points were tracked with three CMR views. The peak systolic velocity (Sm1), diastolic velocity during early diastolic filling (Em), and late diastolic velocity during atrial contraction (Am) were extracted and analyzed. All CMR-derived septal and lateral AVJ velocities correlated well with TDE measurements (Sm1: r = 0.736; Em: r = 0.835; Am: r = 0.701; Em/Am: r = 0.691; all p < 0.001) and demonstrated excellent reproducibility [intrastudy: r = 0.921-0.991, intraclass correlation coefficient (ICC): 0.918-0.991; interstudy: r = 0.900-0.970, ICC: 0.887-0.957; all p < 0.001]. The evaluation of three-dimensional AVJ motion incorporating measurements from all views better differentiated normal and diseased states [area under the curve (AUC) = 0.918] and provided further insights into mechanical dyssynchrony diagnosis in HF patients (AUC = 0.987). These findings suggest that the CMR-based method is feasible, accurate, and consistent in quantifying the AVJ deformation, and subsequently in diagnosing systolic and diastolic cardiac dysfunction.
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Affiliation(s)
| | | | - Fei-Qiong Huang
- National Heart Centre Singapore, Singapore; Duke-NUS Graduate Medical School Singapore, Singapore; and
| | | | - Bo-Yang Su
- National Heart Centre Singapore, Singapore
| | | | | | - Ru-San Tan
- National Heart Centre Singapore, Singapore; Duke-NUS Graduate Medical School Singapore, Singapore; and
| | - Liang Zhong
- National Heart Centre Singapore, Singapore; Duke-NUS Graduate Medical School Singapore, Singapore; and
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19
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Riffel JH, Andre F, Maertens M, Rost F, Keller MGP, Giusca S, Seitz S, Kristen AV, Müller M, Giannitsis E, Korosoglou G, Katus HA, Buss SJ. Fast assessment of long axis strain with standard cardiovascular magnetic resonance: a validation study of a novel parameter with reference values. J Cardiovasc Magn Reson 2015; 17:69. [PMID: 26253220 PMCID: PMC4529700 DOI: 10.1186/s12968-015-0171-8] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Accepted: 07/16/2015] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Assessment of longitudinal function with cardiovascular magnetic resonance (CMR) is limited to measurement of systolic excursion of the mitral annulus (MAPSE) or elaborate strain imaging modalities. The aim of this study was to develop a fast assessable parameter for the measurement of long axis strain (LAS) with CMR. METHODS 40 healthy volunteers and 125 patients with different forms of cardiomyopathy were retrospectively analyzed. Four different approaches for the assessment of LAS with CMR measuring the distance between the LV apex and a line connecting the origins of the mitral valve leaflets in enddiastole and endsystole were evaluated. Values for LAS were calculated according to the strain formula. RESULTS LAS derived from the distance of the epicardial apical border to the midpoint of the line connecting the mitral valve insertion points (LAS-epi/mid) proved to be the most reliable parameter for the assessment of LAS among the different approaches. LAS-epi/mid displayed the highest sensitivity (81.6 %) and specificity (97.5 %), furthermore showing the best correlation with feature tracking (FTI) derived transmural longitudinal strain (r = 0.85). Moreover, LAS-epi/mid was non-inferior to FTI in discriminating controls from patients (Area under the curve (AUC) = 0.95 vs. 0.94, p = NS). The time required for analysis of LAS-epi/mid was significantly shorter than for FTI (67 ± 8 s vs. 180 ± 14 s, p < 0.0001). Additionally, LAS-epi/mid performed significantly better than MAPSE (Delta AUC = 0.09; p < 0.005) and the ejection fraction (Delta AUC = 0.11; p = 0.0002). Reference values were derived from 234 selected healthy volunteers. Mean value for LAS-epi/mid was -17.1 ± 2.3 %. Mean values for men were significantly lower compared to women (-16.5 ± 2.2 vs. -17.9 ± 2.1 %; p < 0.0001), while LAS decreased with age. CONCLUSIONS LAS-epi/mid is a novel and fast assessable parameter for the analysis of global longitudinal function with non-inferiority compared to transmural longitudinal strain.
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Affiliation(s)
- Johannes H Riffel
- Department of Cardiology, Angiology and Pneumology, University of Heidelberg, INF 410, 69120, Heidelberg, Germany.
| | - Florian Andre
- Department of Cardiology, Angiology and Pneumology, University of Heidelberg, INF 410, 69120, Heidelberg, Germany.
| | - Malte Maertens
- Department of Cardiology, Angiology and Pneumology, University of Heidelberg, INF 410, 69120, Heidelberg, Germany.
| | - Franziska Rost
- Department of Cardiology, Angiology and Pneumology, University of Heidelberg, INF 410, 69120, Heidelberg, Germany.
| | - Marius G P Keller
- Department of Cardiology, Angiology and Pneumology, University of Heidelberg, INF 410, 69120, Heidelberg, Germany.
| | - Sorin Giusca
- Department of Cardiology, Angiology and Pneumology, University of Heidelberg, INF 410, 69120, Heidelberg, Germany.
| | - Sebastian Seitz
- Department of Cardiology, Angiology and Pneumology, University of Heidelberg, INF 410, 69120, Heidelberg, Germany.
| | - Arnt V Kristen
- Department of Cardiology, Angiology and Pneumology, University of Heidelberg, INF 410, 69120, Heidelberg, Germany.
| | - Matthias Müller
- Department of Cardiology, Angiology and Pneumology, University of Heidelberg, INF 410, 69120, Heidelberg, Germany.
| | - Evangelos Giannitsis
- Department of Cardiology, Angiology and Pneumology, University of Heidelberg, INF 410, 69120, Heidelberg, Germany.
| | - Grigorios Korosoglou
- Department of Cardiology, Angiology and Pneumology, University of Heidelberg, INF 410, 69120, Heidelberg, Germany.
| | - Hugo A Katus
- Department of Cardiology, Angiology and Pneumology, University of Heidelberg, INF 410, 69120, Heidelberg, Germany.
- DZHK (German Centre for Cardiovascular Research), Heidelberg, Germany.
| | - Sebastian J Buss
- Department of Cardiology, Angiology and Pneumology, University of Heidelberg, INF 410, 69120, Heidelberg, Germany.
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20
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Preliminary Assessment of Tricuspid Valve Annular Velocity Parameters by Cardiac Magnetic Resonance Imaging in Adults with a Volume-Overloaded Right Ventricle: Comparison of Unrepaired Atrial Septal Defect and Repaired Tetralogy of Fallot. Pediatr Cardiol 2015; 36:1294-300. [PMID: 25835201 DOI: 10.1007/s00246-015-1160-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2014] [Accepted: 03/25/2015] [Indexed: 10/23/2022]
Abstract
The aim is to compare tricuspid valve (TV) atrioventricular junction (AVJ) annular motion parameters in unrepaired atrial septal defect (ASD) and repaired Tetralogy of Fallot (TOF) by cardiac magnetic resonance (CMR) imaging. We retrospectively reviewed CMR studies performed between November 2007 and November 2013 in patients 16-45 years of age with unrepaired ASD (with or without partial anomalous pulmonary venous return) and with repaired TOF, who had previous infundibulotomy, but have not undergone pulmonary valve replacement. Longitudinal motion of lateral TV in four-chamber view cine image was tracked through the cardiac cycle with custom software. Twenty TOF patients and 12 ASD patients were included, and values were compared with 80 controls. Right ventricular end-diastolic volume index and right ventricular end-systolic volume index were similar in the ASD and TOF groups and were significantly higher in both groups than in controls. Maximum displacement of the TV in systole, velocity at half-maximal displacement during systole, and velocity at half-maximal displacement during early diastole were all significantly lower in the TOF group than the ASD group [1.39 ± 0.47 vs. 2.21 ± 0.46 (cm, p < 0.01), 5.9 ± 2.1 vs. 10.1 ± 2.3 (cm/s, p < 0.01), and 7.7 ± 2.6 vs. 10.9 ± 3.1 (cm/s, p < 0.05)]. TOF patients have diminished early diastolic TV AVJ velocity compared to patients with an unrepaired ASD, despite similar RV volumes. This observation could suggest diastolic dysfunction or cardiac mechanics unique to the postoperative, volume-overloaded right ventricle in patients with repaired TOF.
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21
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Wu V, Chyou JY, Chung S, Bhagavatula S, Axel L. Evaluation of diastolic function by three-dimensional volume tracking of the mitral annulus with cardiovascular magnetic resonance: comparison with tissue Doppler imaging. J Cardiovasc Magn Reson 2014; 16:71. [PMID: 25242199 PMCID: PMC4169226 DOI: 10.1186/s12968-014-0071-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Accepted: 08/26/2014] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Measurement of mitral annulus (MA) dynamics is an important component of the evaluation of left ventricular (LV) diastolic function; MA velocities are commonly measured using tissue Doppler imaging (TDI). This study aimed to examine the clinical potential of a semi-automated cardiovascular magnetic resonance (CMR) technique for quantifying global LV diastolic function, using 3D volume tracking of the MA with conventional cine-CMR images. METHODS 124 consecutive patients with normal ejection fraction underwent both clinically indicated transthoracic echocardiography (TTE) and CMR within 2 months. Interpolated 3D reconstruction of the MA over time was performed with semi-automated atrioventricular junction (AVJ) tracking in long-axis cine-CMR images, producing an MA sweep volume over the cardiac cycle. CMR-based diastolic function was evaluated, using the following parameters: peak volume sweep rates in early diastole (PSRE) and atrial systole (PSRA), PSRE/PSRA ratio, deceleration time of sweep volume (DTSV), and 50% diastolic sweep volume recovery time (DSVRT50); these were compared with TTE diastolic measurements. RESULTS Patients with TTE-based diastolic dysfunction (n = 62) showed significantly different normalized MA sweep volume profiles compared to those with TTE-based normal diastolic function (n = 62), including a lower PSRE (5.25 ± 1.38 s-1 vs. 7.72 ± 1.7 s-1), a higher PSRA (6.56 ± 1.99 s-1 vs. 4.67 ± 1.38 s-1), a lower PSRE/PSRA ratio (0.9 ± 0.44 vs. 1.82 ± 0.69), a longer DTSV (144 ± 55 ms vs. 96 ± 37 ms), and a longer DSVRT50 (25.0 ± 11.0% vs. 15.6 ± 4.0%) (all p < 0.05). CMR diastolic parameters were independent predictors of TTE-based diastolic dysfunction after adjusting for left ventricular hypertrophy, hypertension, and coronary artery disease. Good correlations were observed between CMR PSRE/PSRA and early-to-late diastolic annular velocity ratios (e'/a') measured by TDI (r = 0.756 to 0.828, p < 0.001). CONCLUSIONS 3D MA sweep volumes generated by semi-automated AVJ tracking in routinely acquired CMR images yielded diastolic parameters that were effective in identifying patients with diastolic dysfunction when correlated with TTE-based variables.
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Affiliation(s)
- Vincent Wu
- />Department of Radiology, Bernard and Irene Schwartz Center for Biomedical Imaging, New York University School of Medicine, 660 First Avenue, Room 411, New York, NY 10016 USA
| | - Janice Y Chyou
- />Department of Medicine, Leon H. Charney Division of Cardiology, New York University School of Medicine, New York, NY USA
| | - Sohae Chung
- />Department of Radiology, Bernard and Irene Schwartz Center for Biomedical Imaging, New York University School of Medicine, 660 First Avenue, Room 411, New York, NY 10016 USA
| | - Sharath Bhagavatula
- />Department of Radiology, Bernard and Irene Schwartz Center for Biomedical Imaging, New York University School of Medicine, 660 First Avenue, Room 411, New York, NY 10016 USA
| | - Leon Axel
- />Department of Radiology, Bernard and Irene Schwartz Center for Biomedical Imaging, New York University School of Medicine, 660 First Avenue, Room 411, New York, NY 10016 USA
- />Department of Medicine, Leon H. Charney Division of Cardiology, New York University School of Medicine, New York, NY USA
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