1
|
Broumpoulis G, Karavasilis E, Lama N, Papadopoulos I, Zachos P, Apostolopoulou S, Kelekis N. Left ventricular structural integrity on tetralogy of Fallot patients: approach using longitudinal relaxation time mapping. J Med Imaging (Bellingham) 2024; 11:044004. [PMID: 39099641 PMCID: PMC11293558 DOI: 10.1117/1.jmi.11.4.044004] [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: 01/15/2024] [Revised: 05/04/2024] [Accepted: 07/09/2024] [Indexed: 08/06/2024] Open
Abstract
Purpose Tetralogy of Fallot (TOF) is a congenital heart disease, and patients undergo surgical repair early in their lives. The evaluation of TOF patients is continuous through their adulthood. The use of cardiac magnetic resonance imaging (CMR) is vital for the evaluation of TOF patients. We aim to correlate advanced MRI sequences [parametric longitudinal relaxation time (T1), extracellular volume (ECV) mapping] with cardiac functionality to provide biomarkers for the evaluation of these patients. Methods A complete CMR examination with the same imaging protocol was conducted in a total of 11 TOF patients and a control group of 25 healthy individuals. A Modified Look-Locker Inversion recovery (MOLLI) sequence was included to acquire the global T1 myocardial relaxation times of the left ventricular (LV) pre and post-contrast administration. Appropriate software (Circle cmr42) was used for the CMR analysis and the calculation of native, post-contrast T1, and ECV maps. A regression analysis was conducted for the correlation between global LV T1 values and right ventricular (RV) functional indices. Results Statistically significant results were obtained for RV cardiac index [RV_CI= -32.765 + 0.029 × T1 native; p = 0.003 ], RV end diastolic volume [RV_EDV/BSA = -1023.872 + 0.902 × T1 native; p = 0.001 ], and RV end systolic volume [RV_ESV/BSA = -536.704 + 0.472 × T1 native; p = 0.011 ]. Conclusions We further support the diagnostic importance of T1 mapping as a structural imaging tool in CMR. In addition to the well-known affected RV function in TOF patients, the LV structure is also impaired as there is a strong correlation between LV T1 mapping and RV function, evoking that the heart operates as an entity.
Collapse
Affiliation(s)
- Giorgos Broumpoulis
- National and Kapodistrian University of Athens, Research and Radiology Unit, Athens, Greece
| | - Efstratios Karavasilis
- National and Kapodistrian University of Athens, Research and Radiology Unit, Athens, Greece
- Democritus University of Thrace, School of Medicine, Alexandroupolis, Greece
| | - Niki Lama
- National and Kapodistrian University of Athens, Research and Radiology Unit, Athens, Greece
| | - Ioannis Papadopoulos
- National and Kapodistrian University of Athens, Research and Radiology Unit, Athens, Greece
| | - Panagiotis Zachos
- General Hospital of Karditsa, Pediatric Cardiology and Adult Congenital Heart Disease Department, Karditsa, Greece
| | - Sotiria Apostolopoulou
- Onassis Cardiac Surgery Center, Pediatric Cardiology and Adult Congenital Heart Disease Department, Athens, Greece
| | - Nikolaos Kelekis
- National and Kapodistrian University of Athens, Research and Radiology Unit, Athens, Greece
- General University Hospital “Attikon”, National and Kapodistrian University of Athens, Medical School, 2nd Department of Radiology, Athens, Greece
| |
Collapse
|
2
|
Truesdell W, Salavitabar A, Zampi JD, Agarwal P, Joshi A. An Imager's Overview to Transcatheter Pulmonic Valve Replacement. Semin Roentgenol 2024; 59:76-86. [PMID: 38388100 DOI: 10.1053/j.ro.2023.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 11/22/2023] [Accepted: 11/22/2023] [Indexed: 02/24/2024]
Affiliation(s)
| | - Arash Salavitabar
- Department of Pediatric Cardiology, Nationwide Children's Hospital, Columbus, OH
| | - Jeffrey D Zampi
- Department of Pediatric Cardiology, Michigan Medicine, Ann Arbor, MI
| | - Prachi Agarwal
- Department of Radiology, Michigan Medicine, Ann Arbor, MI
| | - Aparna Joshi
- Department of Radiology, Michigan Medicine, Ann Arbor, MI
| |
Collapse
|
3
|
Moscatelli S, Pergola V, Motta R, Fortuni F, Borrelli N, Sabatino J, Leo I, Avesani M, Montanaro C, Surkova E, Mapelli M, Perrone MA, di Salvo G. Multimodality Imaging Assessment of Tetralogy of Fallot: From Diagnosis to Long-Term Follow-Up. CHILDREN (BASEL, SWITZERLAND) 2023; 10:1747. [PMID: 38002838 PMCID: PMC10670209 DOI: 10.3390/children10111747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 10/21/2023] [Accepted: 10/24/2023] [Indexed: 11/26/2023]
Abstract
Tetralogy of Fallot (TOF) is the most common complex congenital heart disease with long-term survivors, demanding serial monitoring of the possible complications that can be encountered from the diagnosis to long-term follow-up. Cardiovascular imaging is key in the diagnosis and serial assessment of TOF patients, guiding patients' management and providing prognostic information. Thorough knowledge of the pathophysiology and expected sequalae in TOF, as well as the advantages and limitations of different non-invasive imaging modalities that can be used for diagnosis and follow-up, is the key to ensuring optimal management of patients with TOF. The aim of this manuscript is to provide a comprehensive overview of the role of each modality and common protocols used in clinical practice in the assessment of TOF patients.
Collapse
Affiliation(s)
- Sara Moscatelli
- Centre for Inherited Cardiovascular Diseases, Great Ormond Street Hospital, London WC1N 3JH, UK
- Institute of Cardiovascular Sciences, University College London, London WC1E 6BT, UK
- Paediatric Cardiology Department, Royal Brompton and Harefield Hospitals, Guy's and St. Thomas' NHS Foundation Trust, London SW3 5NP, UK
| | - Valeria Pergola
- Dipartimento di Scienze Cardio-Toraco-Vascolari e Sanità pubblica, University Hospital of Padua, 35128 Padua, Italy
| | - Raffaella Motta
- Dipartimento di Scienze Cardio-Toraco-Vascolari e Sanità pubblica, University Hospital of Padua, 35128 Padua, Italy
| | - Federico Fortuni
- Department of Cardiology, San Giovanni Battista Hospital, 06034 Foligno, Italy
- Department of Cardiology, Leiden University Medical Center, 2300 Leiden, The Netherlands
| | - Nunzia Borrelli
- Adult Congenital Heart Disease Unit, A.O. dei Colli, Monaldi Hospital, 80131 Naples, Italy
| | - Jolanda Sabatino
- Experimental and Clinical Medicine Department, University Magna Graecia of Catanzaro, 88100 Catanzaro, Italy
| | - Isabella Leo
- Experimental and Clinical Medicine Department, University Magna Graecia of Catanzaro, 88100 Catanzaro, Italy
| | - Martina Avesani
- Division of Paediatric Cardiology, Department of Women and Children's Health, University Hospital of Padua, 35128 Padua, Italy
| | - Claudia Montanaro
- Adult Congenital Heart Centre and National Centre for Pulmonary Hypertension, Royal Brompton Hospital, Guy's and St. Thomas's NHS Foundation Trust, London SW3 5NP, UK
- CMR Unit, Cardiology Department, Royal Brompton and Harefield Hospitals, Guy's and St. Thomas' NHS Foundation Trust, London SW3 5NP, UK
- National Heart and Lung Institute, Imperial College London, London SW3 6LY, UK
| | - Elena Surkova
- Department of Echocardiography, Royal Brompton and Harefield Hospitals, Guy's and St. Thomas' NHS Foundation Trust, London SW3 5NP, UK
| | - Massimo Mapelli
- Centro Cardiologico Monzino, IRCCS, 20138 Milan, Italy
- Department of Clinical Sciences and Community Health, Cardiovascular Section, University of Milan, 20122 Milan, Italy
| | - Marco Alfonso Perrone
- Clinical Pathways and Epidemiology Unit, Bambino Gesù Children's Hospital IRCCS, 00165 Rome, Italy
- Division of Cardiology and Cardio Lab, Department of Clinical Science and Translational Medicine, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Giovanni di Salvo
- Division of Paediatric Cardiology, Department of Women and Children's Health, University Hospital of Padua, 35128 Padua, Italy
| |
Collapse
|
4
|
Computed tomography in tetralogy of Fallot: pre- and postoperative imaging evaluation. Pediatr Radiol 2022; 52:2485-2497. [PMID: 34427695 DOI: 10.1007/s00247-021-05179-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 07/02/2021] [Accepted: 08/02/2021] [Indexed: 10/20/2022]
Abstract
Tetralogy of Fallot (TOF) is the most common cause of cyanotic congenital heart disease (CHD) and the most frequent complex CHD encountered in adulthood. Although children with TOF share four characteristic features (subaortic ventricular septal defect, overriding aorta, right ventricular hypertrophy, pulmonary stenosis), the clinical spectrum and course are in fact greatly heterogeneous. Echocardiography remains the mainstay for diagnosis, presurgical planning and postoperative follow-up. However, with continued technological advances, CT now plays an increasing role in TOF evaluation and management, helping to minimize routine invasive catheter angiography. Preoperatively, CT is uniquely suited to assess associated pulmonary arterial, aortic and coronary anomalies as well as extra-cardiovascular structures and is particularly helpful for delineating complex anatomy in the TOF subtypes of absent pulmonary valve and pulmonary atresia with major aortopulmonary collaterals. Postoperatively, CT is useful for identifying surgical complications and for long-term monitoring including volumetry quantification, especially in children for whom MRI is contraindicated or limited by implanted devices such as pacemakers and stents. In this article, we review key clinical features and considerations in the pre- and postoperative TOF patient and the burgeoning role of CT for facilitating accurate diagnosis and personalized intervention.
Collapse
|
5
|
Attalla RA, Helmy IM, Nassar IA, Elbarbary AA, Elshafey KE. CMR parameters and CMR-FT in repaired tetralogy of Fallot. THE EGYPTIAN JOURNAL OF RADIOLOGY AND NUCLEAR MEDICINE 2022. [DOI: 10.1186/s43055-022-00775-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Repaired tetralogy of Fallot patients develops postoperative complications that are in need for follow-up and re-intervention in some circumstances. CMR myocardial feature tracking is a novel method that allows quantification of bi-atrial and bi-ventricular mechanics of deformation. So our aim is to assess the added value of cardiac magnetic resonance imaging and its advanced feature tracking analysis in evaluation of repaired tetralogy of Fallot patients.
Results
CMR was done with feature tracking post-processing analysis for 56 patients with repaired tetralogy of Fallot and 56 healthy volunteers. The commonest postoperative complications in patients with repaired tetralogy of Fallot are in the following order: pulmonary regurgitation with subsequent right ventricular dilatation and tricuspid regurgitation followed by pulmonary stenosis, right ventricular dysfunction, right ventricular outflow tract dilatation, left ventricular dysfunction, aortic and mitral regurgitation and residual ventricular septal defect. All right ventricular volumes were found to be significantly increased compared to those of the healthy volunteers (p value < 0.001) also left ventricular end-diastolic and end-systolic volumes indexed were found to be increased in those patients compared to healthy volunteers (p value < 0.001). Right and left ventricular function were significantly lower in those patients compared to controls. Bi-ventricular CMR-FT indices and right atrial global longitudinal strain were found to be significantly lower in patients with repaired tetralogy of Fallot compared to controls. Right atrium global longitudinal strain was found to be significantly correlated with right ventricular global longitudinal strain and did not correlate with right ventricular ejection fraction and end-diastolic volume indexed; p value < 0.001, 0.109 and 0.565, respectively. Right ventricular global circumferential strain was found to be significantly increased in patients with right ventricular outflow tract obstruction compared to those without obstruction (− 16.26 ± 4.27% vs. − 12.2 ± 3.78%, respectively). Pulmonary regurgitant volume indexed was found to be significantly related to right ventricle longitudinal strain (p value 0.027).
Conclusion
Biventricular volumetric measures are increased in patients with repaired tetralogy of Fallot compared to controls; however, feature tracking parameters for both ventricles and right atrium are lower in those patients compared to controls.
Collapse
|
6
|
Saleh M, Gendy D, Voges I, Nyktari E, Arzanauskaite M. Complex adult congenital heart disease on cross-sectional imaging: an introductory overview. Insights Imaging 2022; 13:78. [PMID: 35467233 PMCID: PMC9038985 DOI: 10.1186/s13244-022-01201-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 02/26/2022] [Indexed: 11/16/2022] Open
Abstract
Congenital heart disease is the most common group of congenital pathology. Over the past few decades, advances in surgical treatment have resulted in a rising population of adult patients with repaired complex congenital heart disease. Although the quality of life has greatly improved, a significant proportion of morbidities encountered in clinical practice is now seen in adults rather than in children. These patients often have significant haemodynamic pathophysiology necessitating repeat intervention. CT and MRI are excellent imaging modalities, which help elucidate potential complications that may need urgent management. Although imaging should be performed in specialised centres, occasionally patients may present acutely to emergency departments in hospitals with little experience in managing potentially complex patients. The purpose of this article is to provide an introductory overview to the radiologist who may not be familiar with complex congenital heart disease in adult patients. This educational review has three main sections: (1) a brief overview of the post-operative anatomy and surgical management of the most common complex conditions followed by (2) a discussion on CT/MRI protocols and (3) a review of the various complications and their CT/MRI findings.
Collapse
Affiliation(s)
- Mahdi Saleh
- Department of Radiology, Liverpool Heart and Chest Hospital, Liverpool, UK.
| | - David Gendy
- Department of Radiology, Liverpool Heart and Chest Hospital, Liverpool, UK
| | - Inga Voges
- Department of Congenital Heart Disease and Paediatric Cardiology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Eva Nyktari
- Cardiovascular MRI Unit, BIOIATRIKI SA (Biomedicine Group of Companies), Athens, Greece
| | - Monika Arzanauskaite
- Department of Radiology, Liverpool Heart and Chest Hospital, Liverpool, UK.,Cardiovascular Research Center-ICCC, Hospital de la Santa Creu i Sant Pau, IIB-Sant Pau, Barcelona, Spain
| |
Collapse
|
7
|
Can T1 mapping be an alternative of post-contrast magnetic resonance sequences in patients with surgically corrected tetralogy of Fallot? Anatol J Cardiol 2020; 24:377-381. [PMID: 33253132 PMCID: PMC7791296 DOI: 10.14744/anatoljcardiol.2020.73576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Objective: The objective of this study is to investigate the ability of native T1 mapping in the determination of myocardial fibrosis in patients with surgically corrected tetralogy of Fallot (TOF). Methods: We included 35 patients with surgically corrected TOF who underwent cardiac magnetic resonance imaging in this study. Additionally, we added pre- and post-contrast T1 mapping sequences at the right ventricular outflow tract (RVOT) and short-axis planes to the routine protocol. We visually evaluated the pre-contrast native T1 mapping images to determine the presence of areas with higher T1 times that indicate focal fibrosis. We compared the findings with the findings of post-contrast images. Results: In 22 of the 35 cases, RVOT enhancement was observed in the delayed enhancement images; however, none of these cases could be distinguished on the native T1 maps. When compared to post-contrast imaging, 28 of the 30 contrast enhancements at right ventricle insertion points and 14 of the 17 contrast enhancements at the remaining left ventricle walls were visually observed on the color-coded native T1 maps. The sensitivity, specificity, positive and negative predictive values of native T1 mapping for the detection of focal fibrosis at the right ventricle insertion points were found to be 93.3%, 100%, 100%, and 71.4%, respectively, whereas these values were found to be 82.4%, 100%, 100%, and 85.8% in the detection of fibrosis in the remaining left ventricle walls. Conclusion: Native T1 mapping is valuable in the detection of focal fibrosis at the right ventricle insertion points and the remaining left ventricle walls; however, it was not possible to visually detect RVOT fibrosis by native T1 mapping. Hence, T1 mapping may not replace the contrast-enhanced imaging in patients with surgically corrected TOF. (Anatol J Cardiol 2020; 24: 377-81)
Collapse
|
8
|
Joshi A, Ghadimi Mahani M, Dorfman A, Balasubramanian S. Cardiac MR Evaluation of Repaired Tetralogy of Fallot. Semin Roentgenol 2020; 55:290-300. [PMID: 32859345 DOI: 10.1053/j.ro.2020.06.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Aparna Joshi
- Department of Radiology, Section of Pediatric Radiology, Michigan Medicine, Ann Arbor, MI.
| | - Maryam Ghadimi Mahani
- Department of Radiology, Section of Pediatric Radiology and Division of Cardiothoracic Radiology, Michigan Medicine, Ann Arbor, MI
| | - Adam Dorfman
- Department of Pediatrics, Division of Pediatric Cardiology, Michigan Medicine, Ann Arbor, MI
| | - Sowmya Balasubramanian
- Department of Pediatrics, Division of Pediatric Cardiology, Michigan Medicine, Ann Arbor, MI
| |
Collapse
|
9
|
Ojha V, Pandey NN, Sharma A, Ganga KP. Spectrum of changes on cardiac magnetic resonance in repaired tetralogy of Fallot: Imaging according to surgical considerations. Clin Imaging 2020; 69:102-114. [PMID: 32717537 DOI: 10.1016/j.clinimag.2020.07.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 06/10/2020] [Accepted: 07/13/2020] [Indexed: 11/16/2022]
Abstract
Imaging of repaired tetralogy of Fallot (TOF) is one of the common indications for cardiac magnetic resonance (CMR) examinations. With advances in CMR imaging techniques like phase contrast imaging and functional imaging, it has superseded investigations like echocardiography for anatomical and functional assessment of the pathophysiological changes in repaired TOF. Common repair procedures for TOF include infundibulectomy, transannular patch repair and right ventricle to pulmonary artery (RV-PA) conduit. While each of these procedures cause dynamic changes in heart and pulmonary arteries resulting in some expected imaging findings, CMR also helps in diagnosing the complications associated with these repair procedures like pulmonary stenosis, right ventricular outflow tract aneurysm, pulmonary regurgitation, RV-PA conduit stenosis, tricuspid regurgitation, right ventricular failure, and residual ventricular septal defects. Hence, it is imperative for a radiologist to be familiar with the expected changes on CMR in repaired TOF along with some of the common complications that may be encountered on imaging in such patients.
Collapse
Affiliation(s)
- Vineeta Ojha
- Department of Cardiovascular Radiology and Endovascular Interventions, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Niraj Nirmal Pandey
- Department of Cardiovascular Radiology and Endovascular Interventions, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Arun Sharma
- Department of Cardiovascular Radiology and Endovascular Interventions, All India Institute of Medical Sciences, New Delhi 110029, India.
| | - Kartik P Ganga
- Department of Cardiovascular Radiology and Endovascular Interventions, All India Institute of Medical Sciences, New Delhi 110029, India
| |
Collapse
|
10
|
Preprocedural Imaging Evaluation of Pulmonary Valve Replacement After Repair of Tetralogy of Fallot: What the Radiologist Needs to Know. J Thorac Imaging 2020; 35:153-166. [PMID: 32073541 DOI: 10.1097/rti.0000000000000478] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Tetrallogy of Fallot (TOF) is the most frequent form of cyanotic congenital heart disease. Despite advances in surgical and medical treatment, mortality remains high. Residual dysfunction of the pulmonary valve (PV) after correction of right ventricular outflow tract obstruction is an important cause of morbidity, leading to irreversible right ventricular dysfunction, arrhythmias, heart failure and occasionally, death. The strategies for PVR have evolved over the last decades, and the timing of the intervention remains the foundation of the decision-making process. Symptoms of heart failure are unreliable indicators for optimal timing of repair. Imaging plays an essential role in the assessment of PV integrity and dysfunction. The identification of the best timing for PVR requires a multimodality approach. Transthoracic echocardiography is the most commonly used imaging modality for the initial assessment and follow-up of TOF patients, although its utility has technical limitations, especially in adults. Cardiac computed tomography and magnetic resonance imaging are now routinely used for preoperative and postoperative evaluation of these patients, and provide highly valuable information about the anatomy and pathophysiology. Imaging evidence of disease progression is now part of the major guidelines to define the best timing for reintervention. The purpose of this article is to review the pathophysiology after TOF repair, identify the main imaging anatomic and physiologic features, describe the indications for PVR and recognize the role of imaging in the assessment of these patients to define the appropriate timing of PVR.
Collapse
|
11
|
Restrepo CS, Vargas D, Martinez-Jimenez S, Ocazionez D. Post-operative imaging of pulmonary vessels. Cardiovasc Diagn Ther 2018; 8:362-371. [PMID: 30057882 DOI: 10.21037/cdt.2018.03.03] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Complications following cardiothoracic surgery are responsible for prolonged hospital stay, increase cost in patient care and increased morbidity and mortality. Vascular complications in particular are significant contributors to poor patient outcome due to either hemorrhage or thrombosis and ischemia. Evaluation of vascular complications in the postoperative patient requires a rapid and reliable imaging approach. Vascular complications after cardiothoracic surgery include pulmonary artery thrombosis, pseudoaneurysm, pulmonary vein thrombosis, vascular fistulas, stenosis and infarction. Multidetector CT (MDCT), often the imaging modality of choice, offers a one-stop-shop capability to visualize the entire cardiothoracic vasculature, airways, lung parenchyma, mediastinum and chest wall with excellent temporal and spatial resolution.
Collapse
Affiliation(s)
- Carlos Santiago Restrepo
- Department of Radiology, The University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - Daniel Vargas
- Department of Radiology, University of Colorado in Denver, Denver, CO, USA
| | | | - Daniel Ocazionez
- Department of Radiology, University of Texas Health Science Center at Houston, Houston, TX, USA
| |
Collapse
|
12
|
|
13
|
Vaujois L, Gorincour G, Alison M, Déry J, Poirier N, Lapierre C. Imaging of postoperative tetralogy of Fallot repair. Diagn Interv Imaging 2016; 97:549-60. [PMID: 26993966 DOI: 10.1016/j.diii.2016.02.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2015] [Revised: 02/04/2016] [Accepted: 02/09/2016] [Indexed: 10/22/2022]
Abstract
Over the last years, the surgical techniques used to repair Tetralogy of Fallot as well as the cross-sectional cardiac imaging techniques have substantially improved. Now, the survival rate after surgical repair is more than 90% at 40 years old. A follow-up is needed and the imaging evaluation should be guided by the surgical techniques used. This article reviews the most common surgical procedures for a complete repair, the associated anatomic and hemodynamic complications and the role of cardiac imaging, mainly magnetic resonance imaging.
Collapse
Affiliation(s)
- L Vaujois
- CHU Sainte-Justine, 3175, Côte-Sainte-Catherine, Montréal, QC H3T 1C5, Canada
| | - G Gorincour
- CHU Sainte-Justine, 3175, Côte-Sainte-Catherine, Montréal, QC H3T 1C5, Canada
| | - M Alison
- CHU Sainte-Justine, 3175, Côte-Sainte-Catherine, Montréal, QC H3T 1C5, Canada
| | - J Déry
- CHU Sainte-Justine, 3175, Côte-Sainte-Catherine, Montréal, QC H3T 1C5, Canada
| | - N Poirier
- CHU Sainte-Justine, 3175, Côte-Sainte-Catherine, Montréal, QC H3T 1C5, Canada
| | - C Lapierre
- CHU Sainte-Justine, 3175, Côte-Sainte-Catherine, Montréal, QC H3T 1C5, Canada.
| |
Collapse
|
14
|
Hirtler D, Garcia J, Barker AJ, Geiger J. Assessment of intracardiac flow and vorticity in the right heart of patients after repair of tetralogy of Fallot by flow-sensitive 4D MRI. Eur Radiol 2016; 26:3598-607. [PMID: 26747260 DOI: 10.1007/s00330-015-4186-1] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Revised: 10/22/2015] [Accepted: 12/21/2015] [Indexed: 02/06/2023]
Abstract
OBJECTIVES To comprehensively and quantitatively analyse flow and vorticity in the right heart of patients after repair of tetralogy of Fallot (rTOF) compared with healthy volunteers. METHODS Time-resolved flow-sensitive 4D MRI was acquired in 24 rTOF patients and 12 volunteers. Qualitative flow evaluation was based on consensus reading of two observers. Quantitative analysis included segmentation of the right atrium (RA) and ventricle (RV) in a four-chamber view to extract volumes and regional haemodynamic information for computation of regional mean and peak vorticity. RESULTS Right heart intra-atrial, intraventricular and outflow tract flow patterns differed considerably between rTOF patients and volunteers. Peak RA and mean RV vorticity was significantly higher in patients (p = 0.02/0.05). Significant negative correlations were found between patients' maximum and mean RV and RA vorticity and ventricular volumes (p < 0.05). The main pulmonary artery (MPA) regurgitant flow was associated with higher RA and RV vorticity, which was significant for RA maximum and RV mean vorticity (p = 0.01/0.03). CONCLUSION The calculation of vorticity based on 4D flow data is an alternative approach to assess intracardiac flow changes in rTOF patients compared with qualitative flow visualization. Alterations in intracardiac vorticity could be relevant with regard to the development of RV dilation and impaired function. KEY POINTS • 4D flow MRI with vorticity calculation enables a novel approach to assess intracardiac flow. • Significantly higher intracardiac vorticity occurred in patients after repair of tetralogy of Fallot. • Regurgitant flow in the main pulmonary artery is associated with higher right heart vorticity.
Collapse
Affiliation(s)
- Daniel Hirtler
- Department of Congenital Heart Defects and Pediatric Cardiology (Heart Center, University of Freiburg), University Hospital Freiburg, Mathildenstr. 1, 79106, Freiburg, Germany.
| | - Julio Garcia
- Department of Radiology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Alex J Barker
- Department of Radiology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Julia Geiger
- Department of Radiology, University Childrens' Hospital Zurich, Zurich, Switzerland
| |
Collapse
|
15
|
|
16
|
Mid-term follow-up of pulmonary regurgitation in repaired asymptomatic TOF patients by transannular patch: A prospective cardiac MRI study. THE EGYPTIAN JOURNAL OF RADIOLOGY AND NUCLEAR MEDICINE 2015. [DOI: 10.1016/j.ejrnm.2015.02.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|