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Haddad R, Dagenais C, Huynh C, Fallu JS. Facilitators of and barriers to healthcare providers' adoption of harm reduction in cannabis use: a scoping review protocol. BMJ Open 2024; 14:e078427. [PMID: 38580357 PMCID: PMC11002399 DOI: 10.1136/bmjopen-2023-078427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 03/20/2024] [Indexed: 04/07/2024] Open
Abstract
INTRODUCTION The high prevalence of cannabis use and the potential for negative effects indicate the need for effective prevention strategies and treatment of people who use cannabis. Studies show that harm reduction (HR) in cannabis use is effective in minimising the harmful consequences of the substance. However, health professionals often misunderstand it and resist its adoption due to various obstacles. To our knowledge, there has been no review of the scientific literature on the factors that facilitate or hinder practitioners' adoption of HR in cannabis use. To fill this gap, we aim to identify, through a scoping review, facilitators and barriers to healthcare providers' adoption of HR in cannabis use in Organisation for Economic Cooperation and Development (OECD) countries. METHODS AND ANALYSIS Our methodology will be guided by the six-step model initially proposed by Arksey and O'Malley (2005). The search strategy will be executed on different databases (Medline, PsycINFO, CINAHL, Web of Science, Embase, Sociological Abstracts, Érudit, BASE, Google Web and Google Scholar) and will cover articles published between 1990 and October 2022. Empirical studies published in French or English in an OECD country and identifying factors that facilitate or hinder healthcare providers' adoption of HR in cannabis use, will be included. Reference lists of the selected articles as well as relevant systematic reviews will be scanned to identify any missed publications by the electronic searches. ETHICS AND DISSEMINATION Ethics approval is not required. The results will be disseminated through various activities (eg, publication in peer-reviewed journals, conferences, webinars and knowledge translation activities). The results will also allow us to conduct a future study aiming to develop and implement a knowledge translation process among healthcare practitioners working with youth in Quebec in order to enhance their adoption of HR in cannabis use.
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Affiliation(s)
- Roula Haddad
- Department of Psychology, Université de Montréal, Montreal, Quebec, Canada
| | - Christian Dagenais
- Department of Psychology, Université de Montréal, Montreal, Quebec, Canada
| | - Christophe Huynh
- University Institute on Addictions, Centre intégré universitaire de santé et de services sociaux du Centre-Sud-de-l'Île-de-Montréal, Montreal, Quebec, Canada
- Department of Psychiatry, Université de Montréal, Montreal, Quebec, Canada
| | - Jean-Sébastien Fallu
- University Institute on Addictions, Centre intégré universitaire de santé et de services sociaux du Centre-Sud-de-l'Île-de-Montréal, Montreal, Quebec, Canada
- School of Psychoeducation, Université de Montréal, Montreal, Quebec, Canada
- Centre de recherche en santé publique (CReSP), Centre intégré universitaire de santé et de services sociaux du Centre-Sud-de-l'Île-de-Montréal, Montreal, Quebec, Canada
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Couture V, Germain N, Côté É, Lavoie L, Robitaille J, Morin M, Chouinard J, Couturier Y, Légaré F, Hardy MS, Chartier LB, Brousseau AA, Sourial N, Mercier É, Dallaire C, Fleet R, Leblanc A, Melady D, Roy D, Sinha S, Sirois MJ, Witteman HO, Émond M, Rivard J, Pelletier I, Turcotte S, Samb R, Giguère R, Abrougui L, Smith PY, Archambault PM. Transitions of care for older adults discharged home from the emergency department: an inductive thematic content analysis of patient comments. BMC Geriatr 2024; 24:8. [PMID: 38172725 PMCID: PMC10763115 DOI: 10.1186/s12877-023-04482-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Accepted: 11/13/2023] [Indexed: 01/05/2024] Open
Abstract
OBJECTIVE Improving care transitions for older adults can reduce emergency department (ED) visits, adverse events, and empower community autonomy. We conducted an inductive qualitative content analysis to identify themes emerging from comments to better understand ED care transitions. METHODS The LEARNING WISDOM prospective longitudinal observational cohort includes older adults (≥ 65 years) who experienced a care transition after an ED visit from both before and during COVID-19. Their comments on this transition were collected via phone interview and transcribed. We conducted an inductive qualitative content analysis with randomly selected comments until saturation. Themes that arose from comments were coded and organized into frequencies and proportions. We followed the Standards for Reporting Qualitative Research (SRQR). RESULTS Comments from 690 patients (339 pre-COVID, 351 during COVID) composed of 351 women (50.9%) and 339 men (49.1%) were analyzed. Patients were satisfied with acute emergency care, and the proportion of patients with positive acute care experiences increased with the COVID-19 pandemic. Negative patient comments were most often related to communication between health providers across the care continuum and the professionalism of personnel in the ED. Comments concerning home care became more neutral with the COVID-19 pandemic. CONCLUSION Patients were satisfied overall with acute care but reported gaps in professionalism and follow-up communication between providers. Comments may have changed in tone from positive to neutral regarding home care over the COVID-19 pandemic due to service slowdowns. Addressing these concerns may improve the quality of care transitions and provide future pandemic mitigation strategies.
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Affiliation(s)
- Vanessa Couture
- Centre de recherche intégrée pour un système apprenant en santé et services sociaux, Centre intégré de santé et services sociaux de Chaudière-Appalaches, Lévis, Québec Canada
| | - Nathalie Germain
- Centre de recherche intégrée pour un système apprenant en santé et services sociaux, Centre intégré de santé et services sociaux de Chaudière-Appalaches, Lévis, Québec Canada
- Faculty of Medicine, Université Laval, Québec, Québec Canada
| | - Émilie Côté
- Centre de recherche intégrée pour un système apprenant en santé et services sociaux, Centre intégré de santé et services sociaux de Chaudière-Appalaches, Lévis, Québec Canada
| | - Lise Lavoie
- Centre de recherche intégrée pour un système apprenant en santé et services sociaux, Centre intégré de santé et services sociaux de Chaudière-Appalaches, Lévis, Québec Canada
| | - Joanie Robitaille
- Centre de recherche intégrée pour un système apprenant en santé et services sociaux, Centre intégré de santé et services sociaux de Chaudière-Appalaches, Lévis, Québec Canada
| | - Michèle Morin
- Centre de recherche intégrée pour un système apprenant en santé et services sociaux, Centre intégré de santé et services sociaux de Chaudière-Appalaches, Lévis, Québec Canada
- Faculty of Medicine, Université Laval, Québec, Québec Canada
| | - Josée Chouinard
- Centre de recherche intégrée pour un système apprenant en santé et services sociaux, Centre intégré de santé et services sociaux de Chaudière-Appalaches, Lévis, Québec Canada
| | - Yves Couturier
- Department of Social Work, Université de Sherbrooke, Sherbrooke, Québec Canada
| | - France Légaré
- Faculty of Medicine, Université Laval, Québec, Québec Canada
- VITAM - Centre de recherche en santé durable, Québec, Québec Canada
- Department of Family Medicine and Emergency Medicine, Université Laval, Québec, Québec Canada
- Centre de recherche du CHU de Québec - Université Laval, Axe santé des populations et pratiques optimales en santé, Université Laval, Québec, Québec Canada
| | - Marie-Soleil Hardy
- Centre de recherche intégrée pour un système apprenant en santé et services sociaux, Centre intégré de santé et services sociaux de Chaudière-Appalaches, Lévis, Québec Canada
| | - Lucas B. Chartier
- Department of Emergency Medicine, University Health Network, Toronto, ON Canada
| | | | - Nadia Sourial
- Department of Health Management, Evaluation and Policy, School of Public Health, Université de Montréal, Montréal, Québec Canada
| | - Éric Mercier
- Faculty of Medicine, Université Laval, Québec, Québec Canada
- Centre de recherche du CHU de Québec - Université Laval, Axe santé des populations et pratiques optimales en santé, Université Laval, Québec, Québec Canada
| | - Clémence Dallaire
- Centre de recherche intégrée pour un système apprenant en santé et services sociaux, Centre intégré de santé et services sociaux de Chaudière-Appalaches, Lévis, Québec Canada
- Faculty of Nursing Science, Université Laval, Québec, Québec Canada
| | - Richard Fleet
- Centre de recherche intégrée pour un système apprenant en santé et services sociaux, Centre intégré de santé et services sociaux de Chaudière-Appalaches, Lévis, Québec Canada
- Faculty of Medicine, Université Laval, Québec, Québec Canada
- VITAM - Centre de recherche en santé durable, Québec, Québec Canada
| | - Annie Leblanc
- Centre de recherche intégrée pour un système apprenant en santé et services sociaux, Centre intégré de santé et services sociaux de Chaudière-Appalaches, Lévis, Québec Canada
- Faculty of Medicine, Université Laval, Québec, Québec Canada
- VITAM - Centre de recherche en santé durable, Québec, Québec Canada
| | - Don Melady
- Department of Family and Community Medicine, University of Toronto, Ontario, Canada
- Schwartz-Reisman Emergency Medicine Institute, Mount Sinai Hospital, Toronto, ON Canada
| | - Denis Roy
- Commissaire à la santé et au bien-être (CSBE), Québec, Québec Canada
| | - Samir Sinha
- Department of Family and Community Medicine, University of Toronto, Ontario, Canada
- Department of Medicine, University of Toronto, Toronto, Canada
- Department of Medicine, Sinai Health System and University Health Network, Toronto, ON Canada
| | - Marie-Josée Sirois
- Faculty of Medicine, Université Laval, Québec, Québec Canada
- Département de réadaptation, Faculté de médecine, Université Laval, Québec, Québec Canada
| | - Holly O. Witteman
- Faculty of Medicine, Université Laval, Québec, Québec Canada
- VITAM - Centre de recherche en santé durable, Québec, Québec Canada
| | - Marcel Émond
- Faculty of Medicine, Université Laval, Québec, Québec Canada
- VITAM - Centre de recherche en santé durable, Québec, Québec Canada
- Department of Family Medicine and Emergency Medicine, Université Laval, Québec, Québec Canada
| | - Josée Rivard
- Centre de recherche intégrée pour un système apprenant en santé et services sociaux, Centre intégré de santé et services sociaux de Chaudière-Appalaches, Lévis, Québec Canada
| | - Isabelle Pelletier
- Centre de recherche intégrée pour un système apprenant en santé et services sociaux, Centre intégré de santé et services sociaux de Chaudière-Appalaches, Lévis, Québec Canada
| | - Stéphane Turcotte
- Centre de recherche intégrée pour un système apprenant en santé et services sociaux, Centre intégré de santé et services sociaux de Chaudière-Appalaches, Lévis, Québec Canada
| | - Rawane Samb
- Centre de recherche intégrée pour un système apprenant en santé et services sociaux, Centre intégré de santé et services sociaux de Chaudière-Appalaches, Lévis, Québec Canada
| | - Raphaëlle Giguère
- Centre de recherche intégrée pour un système apprenant en santé et services sociaux, Centre intégré de santé et services sociaux de Chaudière-Appalaches, Lévis, Québec Canada
- Faculty of Science and Engineering, Université Laval, Québec, Québec Canada
| | - Lyna Abrougui
- Centre de recherche intégrée pour un système apprenant en santé et services sociaux, Centre intégré de santé et services sociaux de Chaudière-Appalaches, Lévis, Québec Canada
- Faculty of Science and Engineering, Université Laval, Québec, Québec Canada
| | - Pascal Y. Smith
- Centre de recherche intégrée pour un système apprenant en santé et services sociaux, Centre intégré de santé et services sociaux de Chaudière-Appalaches, Lévis, Québec Canada
| | - Patrick M. Archambault
- Centre de recherche intégrée pour un système apprenant en santé et services sociaux, Centre intégré de santé et services sociaux de Chaudière-Appalaches, Lévis, Québec Canada
- Faculty of Medicine, Université Laval, Québec, Québec Canada
- VITAM - Centre de recherche en santé durable, Québec, Québec Canada
- Department of Family Medicine and Emergency Medicine, Université Laval, Québec, Québec Canada
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Tullo D, Feng Y, Pahor A, Cote JM, Seitz AR, Jaeggi SM. Investigating the Role of Individual Differences in Adherence to Cognitive Training. J Cogn 2023; 6:48. [PMID: 37636013 PMCID: PMC10453960 DOI: 10.5334/joc.315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 07/31/2023] [Indexed: 08/29/2023] Open
Abstract
Consistent with research across several domains, intervention adherence is associated with desired outcomes. Our study investigates adherence, defined by participants' commitment to, persistence with, and compliance with an intervention's regimen, as a key mechanism underlying cognitive training effectiveness. We examine this relationship in a large and diverse sample comprising 4,775 adults between the ages of 18 and 93. We test the predictive validity of individual difference factors, such as age, gender, cognitive capability (i.e., fluid reasoning and working memory), grit, ambition, personality, self-perceived cognitive failures, socioeconomic status, exercise, and education on commitment to and persistence with a 20-session cognitive training regimen, as measured by the number of sessions completed. Additionally, we test the relationship between compliance measures: (i) spacing between training sessions, as measured by the average time between training sessions, and (ii) consistency in the training schedule, as measured by the variance in time between training sessions, with performance trajectories on the training task. Our data suggest that none of these factors reliably predict commitment to, persistence with, or compliance with cognitive training. Nevertheless, the lack of evidence from the large and representative sample extends the knowledge from previous research exploring limited, heterogenous samples, characterized by older adult populations. The absence of reliable predictors for commitment, persistence, and compliance in cognitive training suggests that nomothetic factors may affect program adherence. Future research will be well served to examine diverse approaches to increasing motivation in cognitive training to improve program evaluation and reconcile the inconsistency in findings across the field.
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Affiliation(s)
| | - Yi Feng
- University of California Irvine, Irvine, USA
| | - Anja Pahor
- Univerza v Mariboru, Maribor, Slovenia
- Northeastern University, Boston, USA
- University of California Riverside, Riverside, USA
| | | | - Aaron R. Seitz
- Northeastern University, Boston, USA
- University of California Riverside, Riverside, USA
| | - Susanne M. Jaeggi
- University of California Irvine, Irvine, USA
- Northeastern University, Boston, USA
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Khadangi F, Forgues AS, Tremblay-Pitre S, Dufour-Mailhot A, Henry C, Boucher M, Beaulieu MJ, Morissette M, Fereydoonzad L, Brunet D, Robichaud A, Bossé Y. Intranasal versus intratracheal exposure to lipopolysaccharides in a murine model of acute respiratory distress syndrome. Sci Rep 2021; 11:7777. [PMID: 33833346 PMCID: PMC8032690 DOI: 10.1038/s41598-021-87462-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 03/22/2021] [Indexed: 12/11/2022] Open
Abstract
Due to frequent and often severe lung affections caused by COVID-19, murine models of acute respiratory distress syndrome (ARDS) are increasingly used in experimental lung research. The one induced by a single lipopolysaccharide (LPS) exposure is practical. However, whether it is preferable to administer LPS intranasally or intratracheally remains an open question. Herein, female C57Bl/6 J mice were exposed intranasally or intratracheally to one dose of either saline or 3 mg/kg of LPS. They were studied 24 h later. The groups treated with LPS, either intranasally or intratracheally, exhibited a pronounced neutrophilic inflammation, signs of lung tissue damage and protein extravasation into the alveoli, and mild lung dysfunction. The magnitude of the response was generally not different between groups exposed intranasally versus intratracheally. However, the variability of some the responses was smaller in the LPS-treated groups exposed intranasally versus intratracheally. Notably, the saline-treated mice exposed intratracheally demonstrated a mild neutrophilic inflammation and alterations of the airway epithelium. We conclude that an intranasal exposure is as effective as an intratracheal exposure in a murine model of ARDS induced by LPS. Additionally, the groups exposed intranasally demonstrated less variability in the responses to LPS and less complications associated with the sham procedure.
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Affiliation(s)
- Fatemeh Khadangi
- Institut Universitaire de Cardiologie et de Pneumologie de Québec - Université Laval, Pavillon Mallet, M2694, 2725, chemin Sainte-Foy, Quebec, QC, G1V 4G5, Canada
| | - Anne-Sophie Forgues
- Institut Universitaire de Cardiologie et de Pneumologie de Québec - Université Laval, Pavillon Mallet, M2694, 2725, chemin Sainte-Foy, Quebec, QC, G1V 4G5, Canada
| | - Sophie Tremblay-Pitre
- Institut Universitaire de Cardiologie et de Pneumologie de Québec - Université Laval, Pavillon Mallet, M2694, 2725, chemin Sainte-Foy, Quebec, QC, G1V 4G5, Canada
| | - Alexis Dufour-Mailhot
- Institut Universitaire de Cardiologie et de Pneumologie de Québec - Université Laval, Pavillon Mallet, M2694, 2725, chemin Sainte-Foy, Quebec, QC, G1V 4G5, Canada
| | - Cyndi Henry
- Institut Universitaire de Cardiologie et de Pneumologie de Québec - Université Laval, Pavillon Mallet, M2694, 2725, chemin Sainte-Foy, Quebec, QC, G1V 4G5, Canada
| | - Magali Boucher
- Institut Universitaire de Cardiologie et de Pneumologie de Québec - Université Laval, Pavillon Mallet, M2694, 2725, chemin Sainte-Foy, Quebec, QC, G1V 4G5, Canada
| | - Marie-Josée Beaulieu
- Institut Universitaire de Cardiologie et de Pneumologie de Québec - Université Laval, Pavillon Mallet, M2694, 2725, chemin Sainte-Foy, Quebec, QC, G1V 4G5, Canada
| | - Mathieu Morissette
- Institut Universitaire de Cardiologie et de Pneumologie de Québec - Université Laval, Pavillon Mallet, M2694, 2725, chemin Sainte-Foy, Quebec, QC, G1V 4G5, Canada
| | | | - David Brunet
- SCIREQ - Scientific Respiratory Equipment Inc., Montreal, Canada
| | | | - Ynuk Bossé
- Institut Universitaire de Cardiologie et de Pneumologie de Québec - Université Laval, Pavillon Mallet, M2694, 2725, chemin Sainte-Foy, Quebec, QC, G1V 4G5, Canada.
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Abstract
BACKGROUND This article is based upon data gathered during a study conducted in partnership with the World Intellectual Property Organization on the patent status of products appearing on the World Health Organization's 2013 Model List of Essential Medicines (MLEM). It is a statistical analysis aimed at answering: in which developing countries are patents on essential medicines being filed? METHODS Patent data were collected by linking those listed in the United States and Canada's medicine patent registers to corresponding patents in developing countries using two international patent databases (INPADOC and Derwent) via a commerical-grade patent search platform (Thomson Innovation). The respective supplier companies were then contacted to correct and verify our data. We next tallied the number of MLEM patents per developing country. Spearman correlations were done to assess bivariate relationships between variables, and a multivariate regression model was developed to explain the number of MLEM patents in each country using SPSS 23.0. RESULTS A subset of 20 of the 375 (5%) products on the 2013 MLEM fit our inclusion criteria. The patent estate reports (i.e., the global list of patents for a given drug) varied greatly in their number with a median of 48 patents (interquartile range [IQR]: 26-76). Their geographic reach had a median of 15% of the developing countries sampled (IQR: 8-28%). The number of developing countries covered appeared to increase with the age of the patent estate (r = .433, p = 0.028). The number of MLEM patents per country was significantly positively associated with human development index (HDI), gross domestic income (GDI) per capita, total healthcare expenditure per capita, population size, the Rule of Law Index, and average education level. Population size, GDI per capita, and healthcare expenditure (in % of national expenditure) were predictors of the number of MLEM patents in countries (p = 0.001, p = 0.001, p = 0.009, respectively). Population size was the most important predictor (β = 0.59), followed by income (GDI per capita) (β = 0.32), and healthcare expenditure (β = 0.15). Holding the other factors constant, (i) 14.3 million more people, (ii) $833.33 more per capita (GDI), or (iii) 0.88% more of national spending on healthcare resulted in 1 additional essential medicine patent. CONCLUSION Population was a powerful predictor of the number of patent filings in developing countries along with GDI and healthcare expenditure. The age and historical context of the patent estate may make a difference in the number of patents and countries covered. Broad surveillance and benchmarking of the global medicine patent landscape is valuable for detecting significant shifts that may occur over time. With improved international medicine patent transparency by companies and data available through third parties, such studies will be increasingly feasible.
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Affiliation(s)
- Reed F Beall
- Population Health Program, University of Ottawa, One Stewart St, Rm 221, Ottawa, ON K1N 6N5 Canada
- Faculties of Medicine, University of Ottawa, One Stewart St, Rm 221, Ottawa, ON K1N 6N5 Canada
- Faculties of Law, University of Ottawa, One Stewart St, Rm 221, Ottawa, ON K1N 6N5 Canada
- Present Address:, 1620 Tremont St., Suite 3030, Boston, MA 02120 USA
| | - Rosanne Blanchet
- Population Health Program, University of Ottawa, One Stewart St, Rm 221, Ottawa, ON K1N 6N5 Canada
- Interdisciplinary School of Health Sciences, University of Ottawa, 35 University Private, THN 050, Ottawa, ON K1N 6N5 Canada
| | - Amir Attaran
- Population Health Program, University of Ottawa, One Stewart St, Rm 221, Ottawa, ON K1N 6N5 Canada
- Faculties of Medicine, University of Ottawa, One Stewart St, Rm 221, Ottawa, ON K1N 6N5 Canada
- Faculties of Law, University of Ottawa, One Stewart St, Rm 221, Ottawa, ON K1N 6N5 Canada
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Tan S, Soulez G, Diez Martinez P, Larrivée S, Stevens LM, Goussard Y, Mansour S, Chartrand-Lefebvre C. Coronary Stent Artifact Reduction with an Edge-Enhancing Reconstruction Kernel - A Prospective Cross-Sectional Study with 256-Slice CT. PLoS One 2016; 11:e0154292. [PMID: 27128507 PMCID: PMC4851391 DOI: 10.1371/journal.pone.0154292] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Accepted: 04/12/2016] [Indexed: 11/23/2022] Open
Abstract
Purpose Metallic artifacts can result in an artificial thickening of the coronary stent wall which can significantly impair computed tomography (CT) imaging in patients with coronary stents. The objective of this study is to assess in vivo visualization of coronary stent wall and lumen with an edge-enhancing CT reconstruction kernel, as compared to a standard kernel. Methods This is a prospective cross-sectional study involving the assessment of 71 coronary stents (24 patients), with blinded observers. After 256-slice CT angiography, image reconstruction was done with medium-smooth and edge-enhancing kernels. Stent wall thickness was measured with both orthogonal and circumference methods, averaging thickness from diameter and circumference measurements, respectively. Image quality was assessed quantitatively using objective parameters (noise, signal to noise (SNR) and contrast to noise (CNR) ratios), as well as visually using a 5-point Likert scale. Results Stent wall thickness was decreased with the edge-enhancing kernel in comparison to the standard kernel, either with the orthogonal (0.97 ± 0.02 versus 1.09 ± 0.03 mm, respectively; p<0.001) or the circumference method (1.13 ± 0.02 versus 1.21 ± 0.02 mm, respectively; p = 0.001). The edge-enhancing kernel generated less overestimation from nominal thickness compared to the standard kernel, both with the orthogonal (0.89 ± 0.19 versus 1.00 ± 0.26 mm, respectively; p<0.001) and the circumference (1.06 ± 0.26 versus 1.13 ± 0.31 mm, respectively; p = 0.005) methods. The edge-enhancing kernel was associated with lower SNR and CNR, as well as higher background noise (all p < 0.001), in comparison to the medium-smooth kernel. Stent visual scores were higher with the edge-enhancing kernel (p<0.001). Conclusion In vivo 256-slice CT assessment of coronary stents shows that the edge-enhancing CT reconstruction kernel generates thinner stent walls, less overestimation from nominal thickness, and better image quality scores than the standard kernel.
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Affiliation(s)
- Stéphanie Tan
- Radiology, University of Montreal Medical Center (CHUM), Montreal, Canada
| | - Gilles Soulez
- Radiology, University of Montreal Medical Center (CHUM), Montreal, Canada
- University of Montreal Medical Center Research Center, Montreal, Canada
| | | | - Sandra Larrivée
- University of Montreal Medical Center Research Center, Montreal, Canada
- Biostatistics, Pennington Biomedical Research Center, Bâton Rouge, Louisiana, United States of America
| | - Louis-Mathieu Stevens
- University of Montreal Medical Center Research Center, Montreal, Canada
- Cardiac Surgery, University of Montreal Medical Center (CHUM), Montreal, Canada
| | - Yves Goussard
- Electrical Engineering, Ecole Polytechnique de Montréal, Montreal, Canada
| | - Samer Mansour
- University of Montreal Medical Center Research Center, Montreal, Canada
- Cardiology, University of Montreal Medical Center (CHUM), Montreal, Canada
| | - Carl Chartrand-Lefebvre
- Radiology, University of Montreal Medical Center (CHUM), Montreal, Canada
- University of Montreal Medical Center Research Center, Montreal, Canada
- * E-mail:
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