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Alnaimat S, Nasr LA, Biederman RWW. Novel use of dynamic MR hydrography to rule out esophageal perforation post atrial fibrillation ablation in a patient with anaphylaxis to gadolinium. Magn Reson Imaging 2024; 109:96-99. [PMID: 38467266 DOI: 10.1016/j.mri.2024.03.007] [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: 02/19/2024] [Revised: 03/04/2024] [Accepted: 03/07/2024] [Indexed: 03/13/2024]
Abstract
Esophageal thermal injury is one of the most devastating complications of atrial radiofrequency ablation, and its diagnosis can be challenging. In this report, we highlight the novel use of free water as a contrast material to better visualize the esophageal lumen in a patient with anaphylaxis to Iodinated contrast media and Gadolinium who recently underwent atrial fibrillation ablation. This becomes particularly handy in patients with contrast allergy, and further emphasizes the role of multimodality imaging.
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Affiliation(s)
- Saed Alnaimat
- Allegheny General Hospital, Center of Cardiac MRI, 320 E North Ave, Pittsburgh, PA 15212, United States of America.
| | - Layla A Nasr
- Allegheny General Hospital, Department of Radiology, 320 E North Ave, Pittsburgh, PA 15212, United States of America
| | - Robert W W Biederman
- West Virginia University School of Medicine, 64 Medical Center Dr, Morgantown, WV 26506, United States of America; Carnegie Mellon University, Bioengineering Department, 5000 Forbes Ave, Pittsburgh, PA 15213, United States of America; Medical University of South Carolina and Roper/SF Hospital, 268 Calhoun St, Charleston, SC 29425, United States of America
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2
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Ballatore A, Negrello E, Gatti M, Matta M, Desalvo P, Marcialis L, Marconi S, Tore D, Magnano M, Bissolino A, De Lio G, De Ferrari GM, Conti M, Faletti R, Anselmino M. Evaluation of Pulmonary Vein Fibrosis Following Cryoballoon Ablation of Atrial Fibrillation: A Semi-Automatic MRI Analysis. J Cardiovasc Dev Dis 2023; 10:396. [PMID: 37754825 PMCID: PMC10531798 DOI: 10.3390/jcdd10090396] [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: 06/30/2023] [Revised: 09/08/2023] [Accepted: 09/10/2023] [Indexed: 09/28/2023] Open
Abstract
Current guidelines recommend the use of cardiac magnetic resonance imaging (MRI) for the management of atrial fibrillation (AF). However, the widespread use of cardiac MRI in clinical practice is difficult to achieve. The aim of the present study is to assess whether cardiac MRI can be adopted to identify ablation-induced fibrosis, and its relationship with AF recurrences. Fifty patients undergoing AF cryoballoon ablation were prospectively enrolled. Cardiac MRI was performed before and 30 days after the index ablation. Commercially available software and a specifically designed image processing workflow were used to quantify left atrium (LA) fibroses. Thirty-six patients were finally included in the analysis; twenty-eight were analyzed with the dedicated workflow. Acute electrical isolation was achieved in 98% of the treated pulmonary veins (PVs). After a median follow-up of 16 months, AF recurrences occurred in 12 patients (33%). In both analyses, no differences were found between the subgroups of patients with and without recurrence in the variation of either LA fibrosis or fibrosis at the ostium of the PV, before and after ablation. The ability to predict arrhythmic recurrences evaluated via the ROC curve of the variations in both LA fibrosis (AUC 0.566) and PV fibrosis (AUC 0.600) was low. Cardiac MRI holds the potential to provide clinically significant information on LA disease and AF progression; however, LA fibrosis cannot be easily identified, either by currently available commercial programs or custom tools.
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Affiliation(s)
- Andrea Ballatore
- Division of Cardiology, Cardiovascular and Thoracic Department, Città della Salute e della Scienza Hospital, 10126 Turin, Italy
| | - Erika Negrello
- SC Chirurgia Generale 2, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy
| | - Marco Gatti
- Radiology Unit, Department of Diagnostic Imaging and Interventional Radiology, Città della Salute e della Scienza Hospital, 10126 Turin, Italy
| | - Mario Matta
- Division of Cardiology, Cardiovascular and Thoracic Department, Città della Salute e della Scienza Hospital, 10126 Turin, Italy
| | - Paolo Desalvo
- Division of Cardiology, Cardiovascular and Thoracic Department, Città della Salute e della Scienza Hospital, 10126 Turin, Italy
| | - Lorenzo Marcialis
- Dipartimento di Ingegneria Civile e Architettura, Università di Pavia, 27100 Pavia, Italy
| | - Stefania Marconi
- Dipartimento di Ingegneria Civile e Architettura, Università di Pavia, 27100 Pavia, Italy
- Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy
| | - Davide Tore
- Radiology Unit, Department of Diagnostic Imaging and Interventional Radiology, Città della Salute e della Scienza Hospital, 10126 Turin, Italy
| | - Massimo Magnano
- Division of Cardiology, Cardiovascular and Thoracic Department, Città della Salute e della Scienza Hospital, 10126 Turin, Italy
| | - Arianna Bissolino
- Division of Cardiology, Cardiovascular and Thoracic Department, Città della Salute e della Scienza Hospital, 10126 Turin, Italy
| | - Giulia De Lio
- Division of Cardiology, Cardiovascular and Thoracic Department, Città della Salute e della Scienza Hospital, 10126 Turin, Italy
| | - Gaetano Maria De Ferrari
- Division of Cardiology, Cardiovascular and Thoracic Department, Città della Salute e della Scienza Hospital, 10126 Turin, Italy
| | - Michele Conti
- Dipartimento di Ingegneria Civile e Architettura, Università di Pavia, 27100 Pavia, Italy
| | - Riccardo Faletti
- Radiology Unit, Department of Diagnostic Imaging and Interventional Radiology, Città della Salute e della Scienza Hospital, 10126 Turin, Italy
| | - Matteo Anselmino
- Division of Cardiology, Cardiovascular and Thoracic Department, Città della Salute e della Scienza Hospital, 10126 Turin, Italy
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Tore D, Faletti R, Biondo A, Carisio A, Giorgino F, Landolfi I, Rocco K, Salto S, Santonocito A, Ullo F, Anselmino M, Fonio P, Gatti M. Role of Cardiovascular Magnetic Resonance in the Management of Atrial Fibrillation: A Review. J Imaging 2022; 8:300. [PMID: 36354873 PMCID: PMC9696856 DOI: 10.3390/jimaging8110300] [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: 06/30/2022] [Revised: 09/26/2022] [Accepted: 09/30/2022] [Indexed: 08/30/2023] Open
Abstract
Atrial fibrillation (AF) is the most common arrhythmia, and its prevalence is growing with time. Since the introduction of catheter ablation procedures for the treatment of AF, cardiovascular magnetic resonance (CMR) has had an increasingly important role for the treatment of this pathology both in clinical practice and as a research tool to provide insight into the arrhythmic substrate. The most common applications of CMR for AF catheter ablation are the angiographic study of the pulmonary veins, the sizing of the left atrium (LA), and the evaluation of the left atrial appendage (LAA) for stroke risk assessment. Moreover, CMR may provide useful information about esophageal anatomical relationship to LA to prevent thermal injuries during ablation procedures. The use of late gadolinium enhancement (LGE) imaging allows to evaluate the burden of atrial fibrosis before the ablation procedure and to assess procedural induced scarring. Recently, the possibility to assess atrial function, strain, and the burden of cardiac adipose tissue with CMR has provided more elements for risk stratification and clinical decision making in the setting of catheter ablation planning of AF. The purpose of this review is to provide a comprehensive overview of the potential applications of CMR in the workup of ablation procedures for atrial fibrillation.
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Affiliation(s)
- Davide Tore
- Radiology Unit, Department of Surgical Sciences, University of Turin, Azienda Ospedaliero Universitaria (A.O.U.) Città della Salute e della Scienza di Torino, 10126 Turin, Italy
| | - Riccardo Faletti
- Radiology Unit, Department of Surgical Sciences, University of Turin, Azienda Ospedaliero Universitaria (A.O.U.) Città della Salute e della Scienza di Torino, 10126 Turin, Italy
| | - Andrea Biondo
- Radiology Unit, Department of Surgical Sciences, University of Turin, Azienda Ospedaliero Universitaria (A.O.U.) Città della Salute e della Scienza di Torino, 10126 Turin, Italy
| | - Andrea Carisio
- Department of Radiology, Humanitas Gradenigo Hospital, 10126 Turin, Italy
| | - Fabio Giorgino
- Radiology Unit, Department of Surgical Sciences, University of Turin, Azienda Ospedaliero Universitaria (A.O.U.) Città della Salute e della Scienza di Torino, 10126 Turin, Italy
| | - Ilenia Landolfi
- Radiology Unit, Department of Surgical Sciences, University of Turin, Azienda Ospedaliero Universitaria (A.O.U.) Città della Salute e della Scienza di Torino, 10126 Turin, Italy
| | - Katia Rocco
- Radiology Unit, Department of Surgical Sciences, University of Turin, Azienda Ospedaliero Universitaria (A.O.U.) Città della Salute e della Scienza di Torino, 10126 Turin, Italy
| | - Sara Salto
- Radiology Unit, Department of Surgical Sciences, University of Turin, Azienda Ospedaliero Universitaria (A.O.U.) Città della Salute e della Scienza di Torino, 10126 Turin, Italy
| | - Ambra Santonocito
- Radiology Unit, Department of Surgical Sciences, University of Turin, Azienda Ospedaliero Universitaria (A.O.U.) Città della Salute e della Scienza di Torino, 10126 Turin, Italy
| | - Federica Ullo
- Radiology Unit, Department of Surgical Sciences, University of Turin, Azienda Ospedaliero Universitaria (A.O.U.) Città della Salute e della Scienza di Torino, 10126 Turin, Italy
| | - Matteo Anselmino
- Division of Cardiology, Department of Medical Sciences, University of Turin, Azienda Ospedaliero Universitaria (A.O.U.) Città della Salute e della Scienza di Torino, 10126 Turin, Italy
| | - Paolo Fonio
- Radiology Unit, Department of Surgical Sciences, University of Turin, Azienda Ospedaliero Universitaria (A.O.U.) Città della Salute e della Scienza di Torino, 10126 Turin, Italy
| | - Marco Gatti
- Radiology Unit, Department of Surgical Sciences, University of Turin, Azienda Ospedaliero Universitaria (A.O.U.) Città della Salute e della Scienza di Torino, 10126 Turin, Italy
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Pellat A, Dohan A, Soyer P, Veziant J, Coriat R, Barret M. The Role of Magnetic Resonance Imaging in the Management of Esophageal Cancer. Cancers (Basel) 2022; 14:cancers14051141. [PMID: 35267447 PMCID: PMC8909473 DOI: 10.3390/cancers14051141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 02/16/2022] [Accepted: 02/18/2022] [Indexed: 02/01/2023] Open
Abstract
Esophageal cancer (EC) is the eighth more frequent cancer worldwide, with a poor prognosis. Initial staging is critical to decide on the best individual treatment approach. Current modalities for the assessment of EC are irradiating techniques, such as computed tomography (CT) and positron emission tomography/CT, or invasive techniques, such as digestive endoscopy and endoscopic ultrasound. Magnetic resonance imaging (MRI) is a non-invasive and non-irradiating imaging technique that provides high degrees of soft tissue contrast, with good depiction of the esophageal wall and the esophagogastric junction. Various sequences of MRI have shown good performance in initial tumor and lymph node staging in EC. Diffusion-weighted MRI has also demonstrated capabilities in the evaluation of tumor response to chemoradiotherapy. To date, there is not enough data to consider whole body MRI as a routine investigation for the detection of initial metastases or for prediction of distant recurrence. This narrative review summarizes the current knowledge on MRI for the management of EC.
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Affiliation(s)
- Anna Pellat
- Department of Gastroenterology and Digestive Oncology, Hôpital Cochin, AP-HP, 27 rue du Faubourg Saint Jacques, 75014 Paris, France; (A.P.); (R.C.)
- Université de Paris, 75006 Paris, France; (A.D.); (P.S.); (J.V.)
| | - Anthony Dohan
- Université de Paris, 75006 Paris, France; (A.D.); (P.S.); (J.V.)
- Department of Radiology, Hôpital Cochin, AP-HP, 27 rue du Faubourg Saint Jacques, 75014 Paris, France
| | - Philippe Soyer
- Université de Paris, 75006 Paris, France; (A.D.); (P.S.); (J.V.)
- Department of Radiology, Hôpital Cochin, AP-HP, 27 rue du Faubourg Saint Jacques, 75014 Paris, France
| | - Julie Veziant
- Université de Paris, 75006 Paris, France; (A.D.); (P.S.); (J.V.)
- Department of Digestive Surgery, Hôpital Cochin, AP-HP, 27 rue du Faubourg Saint Jacques, 75014 Paris, France
| | - Romain Coriat
- Department of Gastroenterology and Digestive Oncology, Hôpital Cochin, AP-HP, 27 rue du Faubourg Saint Jacques, 75014 Paris, France; (A.P.); (R.C.)
- Université de Paris, 75006 Paris, France; (A.D.); (P.S.); (J.V.)
| | - Maximilien Barret
- Department of Gastroenterology and Digestive Oncology, Hôpital Cochin, AP-HP, 27 rue du Faubourg Saint Jacques, 75014 Paris, France; (A.P.); (R.C.)
- Université de Paris, 75006 Paris, France; (A.D.); (P.S.); (J.V.)
- Correspondence:
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Licciardi G, Rizzo D, Ravera E, Fragai M, Parigi G, Luchinat C. Not only manganese, but fruit component effects dictate the efficiency of fruit juice as an oral magnetic resonance imaging contrast agent. NMR IN BIOMEDICINE 2022; 35:e4623. [PMID: 34595785 PMCID: PMC9285043 DOI: 10.1002/nbm.4623] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 08/20/2021] [Accepted: 09/01/2021] [Indexed: 06/13/2023]
Abstract
Several fruit juices are used as oral contrast agents to improve the quality of images in magnetic resonance cholangiopancreatography. They are often preferred to conventional synthetic contrast agents because of their very low cost, natural origin, intrinsic safety, and comparable image qualities. Pineapple and blueberry juices are the most employed in clinical practice due to their higher content of manganese(II) ions. The interest of pharmaceutical companies in these products is testified by the appearance in the market of fruit juice derivatives with improved contrast efficacy. Here, we investigate the origin of the contrast of blueberry juice, analyze the parameters that can effect it, and elucidate the differences with pineapple juice and manganese(II) solutions. It appears that, although manganese(II) is the paramagnetic ion responsible for the contrast, it is the interaction of manganese(II) with other juice components that modulates the efficiency of the juice as a magnetic resonance contrast agent. On these grounds, we conclude that blueberry juice concentrated to the same manganese concentration of pineapple juice would prove a more efficient contrast agent than pineapple juice.
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Affiliation(s)
- Giulia Licciardi
- Magnetic Resonance Center (CERM), Department of Chemistry “Ugo Schiff”University of FlorenceSesto FiorentinoItaly
- Consorzio Interuniversitario Risonanze Magnetiche Metallo Proteine (CIRMMP)Sesto FiorentinoItaly
| | - Domenico Rizzo
- Magnetic Resonance Center (CERM), Department of Chemistry “Ugo Schiff”University of FlorenceSesto FiorentinoItaly
- Consorzio Interuniversitario Risonanze Magnetiche Metallo Proteine (CIRMMP)Sesto FiorentinoItaly
| | - Enrico Ravera
- Magnetic Resonance Center (CERM), Department of Chemistry “Ugo Schiff”University of FlorenceSesto FiorentinoItaly
- Consorzio Interuniversitario Risonanze Magnetiche Metallo Proteine (CIRMMP)Sesto FiorentinoItaly
| | - Marco Fragai
- Magnetic Resonance Center (CERM), Department of Chemistry “Ugo Schiff”University of FlorenceSesto FiorentinoItaly
- Consorzio Interuniversitario Risonanze Magnetiche Metallo Proteine (CIRMMP)Sesto FiorentinoItaly
| | - Giacomo Parigi
- Magnetic Resonance Center (CERM), Department of Chemistry “Ugo Schiff”University of FlorenceSesto FiorentinoItaly
- Consorzio Interuniversitario Risonanze Magnetiche Metallo Proteine (CIRMMP)Sesto FiorentinoItaly
| | - Claudio Luchinat
- Magnetic Resonance Center (CERM), Department of Chemistry “Ugo Schiff”University of FlorenceSesto FiorentinoItaly
- Consorzio Interuniversitario Risonanze Magnetiche Metallo Proteine (CIRMMP)Sesto FiorentinoItaly
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Siebermair J, Kholmovski EG, Sheffer D, Schroeder J, Jensen L, Kheirkhahan M, Baher AA, Ibrahim MM, Reiter T, Rassaf T, Wakili R, Marrouche NF, McGann CJ, Wilson BD. Saturation recovery-prepared magnetic resonance angiography for assessment of left atrial and esophageal anatomy. Br J Radiol 2021; 94:20210048. [PMID: 34111982 DOI: 10.1259/bjr.20210048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES Magnetic resonance angiography (MRA) has been established as an important imaging method in cardiac ablation procedures. In pulmonary vein (PV) isolation procedures, MRA has the potential to minimize the risk of severe complications, such as atrio-esophageal fistula, by providing detailed information on esophageal position relatively to cardiac structures. However, traditional non-gated, first-pass (FP) MRA approaches have several limitations, such as long breath-holds, non-uniform signal intensity throughout the left atrium (LA), and poor esophageal visualization. The aim of this observational study was to validate a respiratory-navigated, ECG-gated (EC), saturation recovery-prepared MRA technique for simultaneous imaging of LA, LA appendage, PVs, esophagus, and adjacent anatomical structures. METHODS Before PVI, 106 consecutive patients with a history of AF underwent either conventional FP-MRA (n = 53 patients) or our new EC-MRA (n = 53 patients). Five quality scores (QS) of LA and esophagus visibility were assessed by two experienced readers. The non-parametric Mann-Whitney U-test was used to compare QS between FP-MRA and EC-MRA groups, and linear regression was applied to assess clinical contributors to image quality. RESULTS EC-MRA demonstrated significantly better image quality than FP-MRA in every quality category. Esophageal visibility using the new MRA technique was markedly better than with the conventional FP-MRA technique (median 3.5 [IQR 1] vs median 1.0, p < 0.001). In contrast to FP-MRA, overall image quality of EC-MRA was not influenced by heart rate. CONCLUSION Our ECG-gated, respiratory-navigated, saturation recovery-prepared MRA technique provides significantly better image quality and esophageal visibility than the established non-gated, breath-holding FP-MRA. Image quality of EC-MRA technique has the additional advantage of being unaffected by heart rate. ADVANCES IN KNOWLEDGE Detailed information of cardiac anatomy has the potential to minimize the risk of severe complications and improve success rates in invasive electrophysiological studies. Our novel ECG-gated, respiratory-navigated, saturation recovery-prepared MRA technique provides significantly better image quality of LA and esophageal structures than the traditional first-pass algorithm. This new MRA technique is robust to arrhythmia (tachycardic, irregular heart rates) frequently observed in AF patients.
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Affiliation(s)
- Johannes Siebermair
- Department of Cardiology and Vascular Medicine, West-German Heart and Vascular Center Essen, University of Essen Medical School, University Duisburg-Essen, Essen, Germany.,Comprehensive Arrhythmia Research & Management Center, University of Utah, Salt Lake City, UT, USA.,Department of Medicine I, University Hospital Munich, Ludwig-Maximilians University, Munich, Germany.,German Cardiovascular Research Center (DZHK), partner site: Munich Heart Alliance, Munich, Germany
| | - Eugene G Kholmovski
- Comprehensive Arrhythmia Research & Management Center, University of Utah, Salt Lake City, UT, USA.,UCAIR, Department of Radiology and Imaging Sciences, University of Utah, Salt Lake City, UT, USA
| | - Douglas Sheffer
- Comprehensive Arrhythmia Research & Management Center, University of Utah, Salt Lake City, UT, USA
| | - Joyce Schroeder
- UCAIR, Department of Radiology and Imaging Sciences, University of Utah, Salt Lake City, UT, USA
| | - Leif Jensen
- UCAIR, Department of Radiology and Imaging Sciences, University of Utah, Salt Lake City, UT, USA
| | - Mobin Kheirkhahan
- Comprehensive Arrhythmia Research & Management Center, University of Utah, Salt Lake City, UT, USA.,Department of Medicine, University of Mississippi Medical Center, Jackson, MS, USA
| | - Alex A Baher
- Comprehensive Arrhythmia Research & Management Center, University of Utah, Salt Lake City, UT, USA
| | - Majd M Ibrahim
- Division of Cardiovascular Medicine, University of Utah, Salt Lake City, UT, USA
| | - Theresa Reiter
- Department of Internal Medicine, Cardiology, University Hospital Wuerzburg, Würzburg, Germany
| | - Tienush Rassaf
- Department of Cardiology and Vascular Medicine, West-German Heart and Vascular Center Essen, University of Essen Medical School, University Duisburg-Essen, Essen, Germany
| | - Reza Wakili
- Department of Cardiology and Vascular Medicine, West-German Heart and Vascular Center Essen, University of Essen Medical School, University Duisburg-Essen, Essen, Germany.,Department of Medicine I, University Hospital Munich, Ludwig-Maximilians University, Munich, Germany.,German Cardiovascular Research Center (DZHK), partner site: Munich Heart Alliance, Munich, Germany
| | - Nassir F Marrouche
- Comprehensive Arrhythmia Research & Management Center, University of Utah, Salt Lake City, UT, USA.,Section of Cardiology, Tulane University School of Medicine, New Orleans, LA, USA
| | - Christopher J McGann
- Comprehensive Arrhythmia Research & Management Center, University of Utah, Salt Lake City, UT, USA.,Swedish Heart and Vascular Institute, Seattle, WA, USA
| | - Brent D Wilson
- Comprehensive Arrhythmia Research & Management Center, University of Utah, Salt Lake City, UT, USA.,Division of Cardiovascular Medicine, University of Utah, Salt Lake City, UT, USA
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Origin of the MRI Contrast in Natural and Hydrogel Formulation of Pineapple Juice. Bioinorg Chem Appl 2021; 2021:6666018. [PMID: 33488688 PMCID: PMC7803405 DOI: 10.1155/2021/6666018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 11/30/2020] [Indexed: 02/07/2023] Open
Abstract
Magnetic resonance imaging (MRI) often requires contrast agents to improve the visualization in some tissues and organs, including the gastrointestinal tract. In this latter case, instead of intravascular administration, oral agents can be used. Natural oral contrast agents, such as fruit juice, have the advantages of better taste, tolerability, and lower price with respect to the artificial agents. We have characterized the relaxometry profiles of pineapple juice in order to understand the origin of the increase in relaxation rates (and thus of the MRI contrast) in reference to its content of manganese ions. Furthermore, we have characterized the relaxometry profiles of pineapple juice in the presence of alginate in different amounts; the interaction of the manganese ions with alginate slows down their reorientation time to some extent, with a subsequent increase in the relaxation rates. The relaxometry profiles were also compared with those of manganese(II) solutions in 50 mmol/dm3 sodium acetate solution (same pH of pineapple juice), which revealed sizable differences, mostly in the number of water molecules coordinated to the metal ion, their lifetimes, and in the constant of the Fermi-contact interaction. Finally, the fit of the transverse relaxivity shows that the increased viscosity in the hydrogel formulations can improve significantly the negative contrast of pineapple juice at the magnetic fields relevant for clinical MRI.
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Leandri C, Soyer P, Oudjit A, Guillaumot MA, Chaussade S, Dohan A, Barret M. Contribution of magnetic resonance imaging to the management of esophageal diseases: A systematic review. Eur J Radiol 2019; 120:108684. [PMID: 31563109 DOI: 10.1016/j.ejrad.2019.108684] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 09/11/2019] [Accepted: 09/18/2019] [Indexed: 01/15/2023]
Abstract
PURPOSE Currently available imaging modalities used to investigate the esophagus are irradiating or limited to the analysis of the esophageal lumen. Magnetic resonance imaging (MRI) is a non-invasive and non-radiating imaging technique that provides high degrees of soft tissue contrast. Newly developed fast MRI sequences allow for both morphological and functional assessment of the esophageal body and esophagogastric junction. The purpose of this systematic review was to identify the contribution of MRI to the diagnosis and management of esophageal diseases, such as gastroesophageal reflux, esophageal motility disorders, esophageal neoplasms, and portal hypertension. METHODS We performed a systematic search of the Medline (via Ovid), EMBASE (via Ovid), PubMed and Cochrane Library databases from inception to December 2018 inclusively, using the MESH major terms "magnetic resonance imaging" AND "esophagus". RESULTS The initial search retrieved 310 references, of which 56 were found to be relevant for the study. References were analysed and classified in different subheadings: MRI protocols for the esophagus, gastroesophageal reflux disease, achalasia and other esophageal motility disorders, esophageal cancer, portal hypertension and other esophageal conditions. CONCLUSION MR Esophagography might become a non-invasive, non-irradiating technique of choice following diagnostic esophagogastroduodenoscopy for the assessment of esophageal diseases.
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Affiliation(s)
- Chloé Leandri
- Gastroenterology Department, Cochin University Hospital, Assistance Publique-Hôpitaux de Paris, France; Paris Descartes University, Paris, France.
| | - Philippe Soyer
- Paris Descartes University, Paris, France; Department of Radiology, Cochin University Hospital, Assistance Publique-Hôpitaux de Paris, France.
| | - Ammar Oudjit
- Department of Radiology, Cochin University Hospital, Assistance Publique-Hôpitaux de Paris, France.
| | - Marie-Anne Guillaumot
- Gastroenterology Department, Cochin University Hospital, Assistance Publique-Hôpitaux de Paris, France.
| | - Stanislas Chaussade
- Gastroenterology Department, Cochin University Hospital, Assistance Publique-Hôpitaux de Paris, France; Paris Descartes University, Paris, France.
| | - Anthony Dohan
- Paris Descartes University, Paris, France; Department of Radiology, Cochin University Hospital, Assistance Publique-Hôpitaux de Paris, France.
| | - Maximilien Barret
- Gastroenterology Department, Cochin University Hospital, Assistance Publique-Hôpitaux de Paris, France; Paris Descartes University, Paris, France.
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