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Computed tomography of the airways and lungs in congenital heart disease. Pediatr Radiol 2022; 52:2529-2537. [PMID: 34562108 DOI: 10.1007/s00247-021-05186-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 07/21/2021] [Accepted: 08/12/2021] [Indexed: 10/20/2022]
Abstract
The presence of airway and lung disease in children with congenital heart disease is commonly observed with both cardiac CT angiography and routine chest CT. In this review we discuss abnormalities encountered on CT imaging of the chest beyond the heart and central vasculature, focusing on the airways, lung parenchyma and peripheral vasculature. Preoperative and postoperative findings are reviewed as well.
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2
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Liu C, Feng B, He S, Liu Y, Chen L, Chen Y, Yao Z, Jian M. Preparation and evaluation of a silk fibroin–polycaprolactone biodegradable biomimetic tracheal scaffold. J Biomed Mater Res B Appl Biomater 2022; 110:1292-1305. [PMID: 35061311 DOI: 10.1002/jbm.b.35000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 11/25/2021] [Accepted: 12/09/2021] [Indexed: 11/10/2022]
Affiliation(s)
- Cai‐Sheng Liu
- School of Medicine South China University of Technology Guangzhou China
- Department of Neonatology, Guangdong Provincial People's Hospital Guangdong Academy of Medical Sciences Guangzhou China
| | - Bo‐Wen Feng
- Department of Child Healthcare Guangzhou Women and Children's Medical Center Guangzhou China
| | - Shao‐Ru He
- School of Medicine South China University of Technology Guangzhou China
- Department of Neonatology, Guangdong Provincial People's Hospital Guangdong Academy of Medical Sciences Guangzhou China
| | - Yu‐Mei Liu
- Department of Neonatology, Guangdong Provincial People's Hospital Guangdong Academy of Medical Sciences Guangzhou China
| | - Liang Chen
- Department of Neonatology, Guangdong Provincial People's Hospital Guangdong Academy of Medical Sciences Guangzhou China
| | - Yan‐Ling Chen
- Department of Neonatology, Guangdong Provincial People's Hospital Guangdong Academy of Medical Sciences Guangzhou China
| | - Zhi‐Ye Yao
- Department of Neonatology, Guangdong Provincial People's Hospital Guangdong Academy of Medical Sciences Guangzhou China
| | - Min‐Qiao Jian
- Department of Pediatrics, Sun Yat‐Sen Memorial Hospital Sun Yat‐Sen University Guangzhou China
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Prountzos S, Papakonstantinou O, Bizimi V, Velonakis G, Mazioti A, Douros K, Alexopoulou E. Large airway diseases in pediatrics: a pictorial essay. Acta Radiol Open 2021; 9:2058460120972694. [PMID: 33403124 PMCID: PMC7747119 DOI: 10.1177/2058460120972694] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Accepted: 10/21/2020] [Indexed: 12/12/2022] Open
Abstract
“Large airway diseases” is being used as an all-encompassing phrase to describe a broad spectrum of pathological entities, which involves the trachea, main, lobar, and segmental bronchi of up to 3 mm diameter. Imaging modalities such as radiography, computed tomography, and magnetic resonance imaging contribute to the identification and diagnosis of each entity. Knowledge of clinical information, normal cross-sectional anatomy, and imaging characteristics of large airway diseases is necessary for appropriate radiologic evaluation. This review provides information about congenital and acquired diseases of the large airways in the pediatric population.
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Affiliation(s)
- Spyridon Prountzos
- 2nd Department of Radiology, National and Kapodistrian University of Athens, "Attikon" University Hospital of Athens, Athens, Greece
| | - Olympia Papakonstantinou
- 2nd Department of Radiology, National and Kapodistrian University of Athens, "Attikon" University Hospital of Athens, Athens, Greece
| | - Vasiliki Bizimi
- 2nd Department of Radiology, National and Kapodistrian University of Athens, "Attikon" University Hospital of Athens, Athens, Greece
| | - Georgios Velonakis
- 2nd Department of Radiology, National and Kapodistrian University of Athens, "Attikon" University Hospital of Athens, Athens, Greece
| | - Argyro Mazioti
- 2nd Department of Radiology, National and Kapodistrian University of Athens, "Attikon" University Hospital of Athens, Athens, Greece
| | - Konstantinos Douros
- Allergology and Pulmonology Unit, 3rd Pediatric Department, Attikon Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Efthymia Alexopoulou
- 2nd Department of Radiology, National and Kapodistrian University of Athens, "Attikon" University Hospital of Athens, Athens, Greece
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Tagliati C, Lanza C, Pieroni G, Amici L, Carotti M, Giuseppetti GM, Giovagnoni A. Ultra-low-dose chest CT in adult patients with cystic fibrosis using a third-generation dual-source CT scanner. Radiol Med 2020; 126:544-552. [PMID: 33200307 DOI: 10.1007/s11547-020-01304-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 10/29/2020] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Chest computed tomography (CT) examinations are performed routinely in some cystic fibrosis (CF) centers in order to evaluate lung disease progression in CF patients. Continuous CT technological advancement in theory could allows a lower radiation exposure of CF patients during chest CT examinations without an image quality reduction, and this could become increasingly important over time in order to reduce the cumulative radiation dose effects given the continuous increase of CF patients predicted median survival. OBJECTIVE The aim of this study was to compare objective and subjective image quality and radiation dose between low-dose chest CT examinations performed in adult CF patients using a third-generation DSCT scanner and a 64-slices single-source CT (SSCT) scanner. MATERIALS AND METHODS Between January 2016 and August 2019, 81 CF patients underwent low-dose chest CT examinations using both a 64-slices SSCT scanner (2016-2017) and a third-generation DSCT scanner (2018-2019). Objective image noise standard deviation (INSD), signal-to-noise ratio (SNR), contrast-to-noise ratio (CNR), overall subjective image quality (OSIQ), subjective image noise (SIN), subjective evaluation of streaking artifacts (SA), movement artifacts (MA) and edge resolution (ER), dose-length product (DLP), volume computed tomography dose index (CTDIvol) and effective radiation dose (ERD) were compared between DSCT and SSCT examinations. DSCT examinations consisted in spiral inspiratory end expiratory acquisitions. SSCT examinations consisted in spiral inspiratory acquisitions and five axial expiratory ones. RESULTS DSCT protocol showed statistically significant lower spiral inspiratory phase mean DLP, CTDIvol and ERD than SSCT protocol, with a 25% DLP, CTDIvol and ERD reduction. DSCT protocol showed statistically significant higher overall (inspiratory and expiratory phases) mean DLP, CTDIvol and ERD than SSCT protocol, with a 40% DLP, CTDIvol and ERD increase. Objective image quality (INSD, SNR and CNR) and SIN differences were not statistically significant, but subjective evaluation of DSCT images showed statistically significant better OSIQ and ER, as well as statistically significant lower SA and MA with respect to SSCT images. CONCLUSIONS To our knowledge, this is the first study evaluating chest CT image quality and radiation dose in adult CF patients using a third-generation DSCT scanner, and it showed that technological advancements could be used in order to reduce radiation exposure of volumetric examinations. The spiral inspiratory dose reduction can be obtained with concomitant improvements in subjective image quality with comparable objective quality. This will probably allow a wider use of this imaging modality in order to assess bronchiectasis and will probably foster spiral expiratory acquisition for small airways disease evaluation.
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Affiliation(s)
- Corrado Tagliati
- School of Radiology, Università Politecnica Delle Marche, Ancona, Italy.
| | - Cecilia Lanza
- Department of Radiological Sciences, Azienda Ospedaliero Universitaria Ospedali Riuniti, Università Politecnica Delle Marche, Ancona, Italy
| | - Giovanni Pieroni
- Department of Radiological Sciences, Azienda Ospedaliero Universitaria Ospedali Riuniti, Università Politecnica Delle Marche, Ancona, Italy
| | - Lucia Amici
- Department of Radiological Sciences, Azienda Ospedaliero Universitaria Ospedali Riuniti, Università Politecnica Delle Marche, Ancona, Italy
| | - Marina Carotti
- Department of Radiological Sciences, Azienda Ospedaliero Universitaria Ospedali Riuniti, Università Politecnica Delle Marche, Ancona, Italy
| | - Gian Marco Giuseppetti
- Department of Radiological Sciences, Azienda Ospedaliero Universitaria Ospedali Riuniti, Università Politecnica Delle Marche, Ancona, Italy
| | - Andrea Giovagnoni
- Department of Radiological Sciences, Azienda Ospedaliero Universitaria Ospedali Riuniti, Università Politecnica Delle Marche, Ancona, Italy
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Umkehrer S, Morrone C, Dinkel J, Aigner L, Reiser MF, Herzen J, Yildirim AÖ, Pfeiffer F, Hellbach K. A proof-of principal study using phase-contrast imaging for the detection of large airway pathologies after lung transplantation. Sci Rep 2020; 10:18444. [PMID: 33116193 PMCID: PMC7595203 DOI: 10.1038/s41598-020-75185-4] [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] [Received: 03/13/2020] [Accepted: 10/08/2020] [Indexed: 11/09/2022] Open
Abstract
In this study we aim to evaluate the assessment of bronchial pathologies in a murine model of lung transplantation with grating-based X-ray interferometry in vivo. Imaging was performed using a dedicated grating-based small-animal X-ray dark-field and phase-contrast scanner. While the contrast modality of the dark-field signal already showed several promising applications for diagnosing various types of pulmonary diseases, the phase-shifting contrast mechanism of the phase contrast has not yet been evaluated in vivo. For this purpose, qualitative analysis of phase-contrast images was performed and revealed pathologies due to previous lung transplantation, such as unilateral bronchial stenosis or bronchial truncation. Dependent lung parenchyma showed a strong loss in dark-field and absorption signal intensity, possibly caused by several post transplantational pathologies such as atelectasis, pleural effusion, or pulmonary infiltrates. With this study, we are able to show that bronchial pathologies can be visualized in vivo using conventional X-ray imaging when phase-contrast information is analysed. Absorption and dark-field images can be used to quantify the severity of lack of ventilation in the affected lung.
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Affiliation(s)
- Stephan Umkehrer
- Chair of Biomedical Physics, Physics Department & Munich School of BioEngineering, Technical University of Munich (TUM), Garching, Germany.
| | - Carmela Morrone
- Member of the German Center for Lung Research (DZL), Comprehensive Pneumology Center Munich (CPC-M), Ludwig-Maximilians University Munich, Munich, Germany
| | - Julien Dinkel
- Department of Radiology, University Hospital, Ludwig-Maximilians University Munich, Munich, Germany.,Institute of Lung Biology and Disease, Helmholtz Zentrum München, Neuherberg, Germany
| | - Laura Aigner
- Department of Radiology, University Hospital, Ludwig-Maximilians University Munich, Munich, Germany
| | - Maximilian F Reiser
- Department of Radiology, University Hospital, Ludwig-Maximilians University Munich, Munich, Germany.,Institute of Lung Biology and Disease, Helmholtz Zentrum München, Neuherberg, Germany
| | - Julia Herzen
- Chair of Biomedical Physics, Physics Department & Munich School of BioEngineering, Technical University of Munich (TUM), Garching, Germany
| | - Ali Ö Yildirim
- Member of the German Center for Lung Research (DZL), Comprehensive Pneumology Center Munich (CPC-M), Ludwig-Maximilians University Munich, Munich, Germany.,Institute of Lung Biology and Disease, Helmholtz Zentrum München, Neuherberg, Germany
| | - Franz Pfeiffer
- Chair of Biomedical Physics, Physics Department & Munich School of BioEngineering, Technical University of Munich (TUM), Garching, Germany.,Department of Diagnostic and Interventional Radiology, School of Medicine & Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Katharina Hellbach
- Department of Radiology, University Hospital, Ludwig-Maximilians University Munich, Munich, Germany.,Department of Diagnostic and Interventional Radiology, University Hospital of Heidelberg, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany.,Translational Lung Research Center Heidelberg (TLRC), Ruprecht-Karls-University Heidelberg, German Center for Lung Research (DZL), Heidelberg, Germany
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Singh A, Bhalla AS, Jana M. Bronchiectasis Revisited: Imaging-Based Pattern Approach to Diagnosis. Curr Probl Diagn Radiol 2019. [DOI: 10.1067/j.cpradiol.2017.12.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Andronikou S, Chopra M, Langton-Hewer S, Maier P, Green J, Norbury E, Price S, Smail M. Technique, pitfalls, quality, radiation dose and findings of dynamic 4-dimensional computed tomography for airway imaging in infants and children. Pediatr Radiol 2019; 49:678-686. [PMID: 30683962 PMCID: PMC6459803 DOI: 10.1007/s00247-018-04338-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 11/21/2018] [Accepted: 12/19/2018] [Indexed: 02/07/2023]
Abstract
This retrospective review of 33 children's dynamic 4-dimensional (4-D) computed tomography (CT) images of the airways, performed using volume scanning on a 320-detector array without anaesthesia (free-breathing) and 1.4-s continuous scanning, was undertaken to report technique, pitfalls, quality, radiation doses and findings. Tracheobronchomalacia (airway diameter collapse >28%) was recorded. Age-matched routine chest CT scans and bronchograms acted as benchmarks for comparing effective dose. Pitfalls included failure to administer intravenous contrast, pull back endotracheal tubes and/or remove nasogastric tubes. Twenty-two studies (67%) were diagnostic. Motion artefact was present in 16 (48%). Mean effective dose: dynamic 4-D CT 1.0 mSv; routine CT chest, 1.0 mSv, and bronchograms, 1.4 mSv. Dynamic 4-D CT showed tracheobronchomalacia in 20 patients (61%) and cardiovascular abnormalities in 12 (36%). Fourteen children (70%) with tracheobronchomalacia were managed successfully by optimising conservative management, 5 (25%) underwent surgical interventions and 1 (5%) died from the presenting disorder.
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Affiliation(s)
- Savvas Andronikou
- Department of Paediatric Radiology, Bristol Royal Hospital for Children, University Hospitals Bristol NHS Foundation Trust, Bristol, UK. .,Department of Paediatric Radiology, University of Bristol, Bristol, UK. .,Department of Pediatric Radiology, Section of Pulmonary Imaging, Children's Hospital of Philadelphia, 3NW 39, 3401 Civic Center Blvd., Philadelphia, PA, 19104, USA.
| | - Mark Chopra
- Department of Paediatric Radiology, Bristol Royal Hospital for Children, University Hospitals Bristol NHS Foundation Trust, Bristol, UK
| | - Simon Langton-Hewer
- Department of Paediatric Pulmonology, Bristol Royal Hospital for Children, Bristol, UK
| | - Pia Maier
- Department of Pediatric Radiology, Section of Pulmonary Imaging, Children’s Hospital of Philadelphia, 3NW 39, 3401 Civic Center Blvd., Philadelphia, PA 19104 USA
| | - Jon Green
- Department of Paediatric Radiology, Bristol Royal Hospital for Children, University Hospitals Bristol NHS Foundation Trust, Bristol, UK
| | - Emma Norbury
- Department of Paediatric Radiology, Bristol Royal Hospital for Children, University Hospitals Bristol NHS Foundation Trust, Bristol, UK
| | - Sarah Price
- Radiation Science Services, Medical Physics & Bioengineering, University Hospitals Bristol NHS Foundation Trust, Bristol, UK
| | - Mary Smail
- Radiation Science Services, Medical Physics & Bioengineering, University Hospitals Bristol NHS Foundation Trust, Bristol, UK
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Tiddens HAWM, Kuo W, van Straten M, Ciet P. Paediatric lung imaging: the times they are a-changin'. Eur Respir Rev 2018; 27:27/147/170097. [PMID: 29491035 DOI: 10.1183/16000617.0097-2017] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 12/13/2017] [Indexed: 02/06/2023] Open
Abstract
Until recently, functional tests were the most important tools for the diagnosis and monitoring of lung diseases in the paediatric population. Chest imaging has gained considerable importance for paediatric pulmonology as a diagnostic and monitoring tool to evaluate lung structure over the past decade. Since January 2016, a large number of papers have been published on innovations in chest computed tomography (CT) and/or magnetic resonance imaging (MRI) technology, acquisition techniques, image analysis strategies and their application in different disease areas. Together, these papers underline the importance and potential of chest imaging and image analysis for today's paediatric pulmonology practice. The focus of this review is chest CT and MRI, as these are, and will be, the modalities that will be increasingly used by most practices. Special attention is given to standardisation of image acquisition, image analysis and novel applications in chest MRI. The publications discussed underline the need for the paediatric pulmonology community to implement and integrate state-of-the-art imaging and image analysis modalities into their structure-function laboratory for the benefit of their patients.
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Affiliation(s)
- Harm A W M Tiddens
- Pediatric Pulmonology and Allergology, Erasmus MC - Sophia Children's Hospital, University Medical Centre, Rotterdam, The Netherlands .,Radiology and Nuclear Medicine, Erasmus University Medical Center - Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Wieying Kuo
- Pediatric Pulmonology and Allergology, Erasmus MC - Sophia Children's Hospital, University Medical Centre, Rotterdam, The Netherlands.,Radiology and Nuclear Medicine, Erasmus University Medical Center - Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Marcel van Straten
- Radiology and Nuclear Medicine, Erasmus University Medical Center - Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Pierluigi Ciet
- Pediatric Pulmonology and Allergology, Erasmus MC - Sophia Children's Hospital, University Medical Centre, Rotterdam, The Netherlands.,Radiology and Nuclear Medicine, Erasmus University Medical Center - Sophia Children's Hospital, Rotterdam, The Netherlands
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9
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Devaraj A. Special issue on thoracic imaging. Clin Radiol 2017; 72:341-342. [PMID: 28285705 DOI: 10.1016/j.crad.2017.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 02/14/2017] [Indexed: 10/20/2022]
Affiliation(s)
- A Devaraj
- Department of Radiology, Royal Brompton Hospital, Sydney Street, London SW3 6NP, UK.
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