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Darwish OI, Gharib AM, Jeljeli S, Metwalli NS, Feeley J, Rotman Y, Brown RJ, Ouwerkerk R, Kleiner DE, Stäb D, Speier P, Sinkus R, Neji R. Single Breath-Hold 3-Dimensional Magnetic Resonance Elastography Depicts Liver Fibrosis and Inflammation in Obese Patients. Invest Radiol 2023; 58:413-419. [PMID: 36719974 PMCID: PMC10735168 DOI: 10.1097/rli.0000000000000952] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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] [Indexed: 02/02/2023]
Abstract
OBJECTIVES Three-dimensional (3D) magnetic resonance elastography (MRE) measures liver fibrosis and inflammation but requires several breath-holds that hamper clinical acceptance. The aim of this study was to evaluate the technical and clinical feasibility of a single breath-hold 3D MRE sequence as a means of measuring liver fibrosis and inflammation in obese patients. METHODS From November 2020 to December 2021, subjects were prospectively enrolled and divided into 2 groups. Group 1 included healthy volunteers (n = 10) who served as controls to compare the single breath-hold 3D MRE sequence with a multiple-breath-hold 3D MRE sequence. Group 2 included liver patients (n = 10) who served as participants to evaluate the clinical feasibility of the single breath-hold 3D MRE sequence in measuring liver fibrosis and inflammation. Controls and participants were scanned at 60 Hz mechanical excitation with the single breath-hold 3D MRE sequence to retrieve the magnitude of the complex-valued shear modulus (|G*| [kPa]), the shear wave speed (Cs [m/s]), and the loss modulus (G" [kPa]). The controls were also scanned with a multiple-breath-hold 3D MRE sequence for comparison, and the participants had histopathology (Ishak scores) for correlation with Cs and G". RESULTS For the 10 controls, 5 were female, and the mean age and body mass index were 33.1 ± 9.5 years and 23.0 ± 2.1 kg/m 2 , respectively. For the 10 participants, 8 were female, and the mean age and body mass index were 45.1 ± 16.5 years and 33.1 ± 4.0 kg/m 2 (obese range), respectively. All participants were suspected of having nonalcoholic fatty liver disease. Bland-Altman analysis of the comparison in controls shows there are nonsignificant differences in |G*|, Cs, and G" below 6.5%, suggesting good consensus between the 2 sequences. For the participants, Cs and G" correlated significantly with Ishak fibrosis and inflammation grades, respectively ( ρ = 0.95, P < 0.001, and ρ = 0.84, P = 0.002). CONCLUSION The single breath-hold 3D MRE sequence may be effective in measuring liver fibrosis and inflammation in obese patients.
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Affiliation(s)
- Omar Isam Darwish
- School of Biomedical Engineering and Imaging Sciences, King’s College London, London, United Kingdom
- INSERM U1148, LVTS, University Paris Diderot, Paris, France
- MR Research Collaborations, Siemens Healthcare Limited, Frimley, United Kingdom
| | - Ahmed M. Gharib
- National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD
| | - Sami Jeljeli
- School of Biomedical Engineering and Imaging Sciences, King’s College London, London, United Kingdom
| | - Nader S. Metwalli
- National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD
| | - Jenna Feeley
- National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD
| | - Yaron Rotman
- National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD
| | - Rebecca J. Brown
- National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD
| | - Ronald Ouwerkerk
- National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD
| | | | - Daniel Stäb
- MR Research Collaborations, Siemens Healthcare Limited, Melbourne, Australia
| | - Peter Speier
- MR Application Predevelopment, Siemens Healthcare GmbH, Erlangen, Germany
| | - Ralph Sinkus
- School of Biomedical Engineering and Imaging Sciences, King’s College London, London, United Kingdom
- INSERM U1148, LVTS, University Paris Diderot, Paris, France
| | - Radhouene Neji
- School of Biomedical Engineering and Imaging Sciences, King’s College London, London, United Kingdom
- MR Research Collaborations, Siemens Healthcare Limited, Frimley, United Kingdom
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Nazari MA, Abd-Elmoniem KZ, Jha A, Matta J, Talvacchio S, Charles K, Feeley J, Patel M, Feelders R, Pacak K, Gharib AM. Reduced coronary artery luminal area in pheochromocytoma and paraganglioma patients. J Endocrinol Invest 2022:10.1007/s40618-022-01982-5. [PMID: 36538160 DOI: 10.1007/s40618-022-01982-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 12/04/2022] [Indexed: 12/24/2022]
Affiliation(s)
- M A Nazari
- Section on Medical Neuroendocrinology, Eunice Kennedy Shriver National Institute of Child Health and Development (NICHD), National Institutes of Health, Bethesda, MD, USA
| | - K Z Abd-Elmoniem
- Biomedical and Metabolic Imaging Branch, National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), National Institutes of Health, Bethesda, MD, USA.
| | - A Jha
- Section on Medical Neuroendocrinology, Eunice Kennedy Shriver National Institute of Child Health and Development (NICHD), National Institutes of Health, Bethesda, MD, USA
| | - J Matta
- Biomedical and Metabolic Imaging Branch, National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), National Institutes of Health, Bethesda, MD, USA
| | - S Talvacchio
- Section on Medical Neuroendocrinology, Eunice Kennedy Shriver National Institute of Child Health and Development (NICHD), National Institutes of Health, Bethesda, MD, USA
| | - K Charles
- Section on Medical Neuroendocrinology, Eunice Kennedy Shriver National Institute of Child Health and Development (NICHD), National Institutes of Health, Bethesda, MD, USA
| | - J Feeley
- Biomedical and Metabolic Imaging Branch, National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), National Institutes of Health, Bethesda, MD, USA
| | - M Patel
- Section on Medical Neuroendocrinology, Eunice Kennedy Shriver National Institute of Child Health and Development (NICHD), National Institutes of Health, Bethesda, MD, USA
| | - R Feelders
- Division of Endocrinology, Department of Internal Medicine, Erasmus Medical Center, Rotterdam, The Netherlands
| | - K Pacak
- Section on Medical Neuroendocrinology, Eunice Kennedy Shriver National Institute of Child Health and Development (NICHD), National Institutes of Health, Bethesda, MD, USA
| | - A M Gharib
- Biomedical and Metabolic Imaging Branch, National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), National Institutes of Health, Bethesda, MD, USA
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Affiliation(s)
- A Marcus
- AGRICULTURAL RESEARCH SERVICE, UNITED STATES DEPARTMENT OF AGRICULTURE, BELTSVILLE, MARYLAND
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Affiliation(s)
- A Marcus
- FIELD CROPS AND ANIMAL PRODUCTS BRANCH, MARKET QUALITY RESEARCH DIVISION, AGRICULTURAL MARKETING SERVICE, UNITED STATES DEPARTMENT OF AGRICULTURE, BELTSVILLE, MARYLAND
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Wyman M, Feeley J, Brimacombe G, Doucette K. Core and comprehensive health care services: 4. Economic issues. CMAJ 1995; 152:1601-4. [PMID: 7743446 PMCID: PMC1337856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
This article reviews the economic dimensions of the CMA's decision-making framework on core and comprehensive services. The framework was developed in a policy context characterized by three government objectives: reduction, reallocation and reassignment of health care resources. One economic-evaluation tool for the determination of core services is cost-effectiveness analysis. Some of the critical demand-side and supply-side considerations include the perceived value of medical services, the availability of private insurance and the supply of health care providers. The article concludes that shifting services to the private sector should not be viewed as a panacea for reducing the costs and improving the economic efficiency of the health care system, or for increasing patient access to, or the cost-effectiveness of high-quality care.
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Affiliation(s)
- M Wyman
- Department of Family and Community Medicine, University of Toronto, Ont
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O’Dwyer JA, Toland JA, Geraghty M, Hardiman O, Keogan M, O’Moore B, King M, Farrell MA, O’Neill D, Rowan M, Abrahamson D, P. Walsh J, Coakley D, Feeley J, Fahy J, Glynn D, Hutchinson M, McMenamin J, Monaghan G, Khan Y, Diamond T, Gray WJ, Chee CP, Fannin TF, Murphy SF, Phillips JP, Connolly S, Byrnes DP, Patterson V, Hicks E, Taylor T, Brown RH, Farrell MA, Halperin JJ, Shapiro BE, Wray IS, McMackin D, Murphy S, Staunton H, Phillips J, Farrell M, Radford I, Trew KJ, Hawkins SA, Burke TE, Keelin T, Lord D, O’Farrell AG, Connolly MJ, Stack J, Martin EA, Bergin A, Keoghane C, Callaghan N, O’Riordan T, Daly PA, Shattock A, Gardner S, Davies MG, Rowan MJ, MacMathuna P, Keeling PWN, Weir DG, Feely J, McLoughlin P, Keelan T, Tormey W, Donohoe J, O’Donovan C, Browne O, Dinn JJ, Fry GC, Pidgeon CN, Regan M, Moran J, Moran L, O’Kennedy R, Kaar G. Proceedings of the Irish Neurological Association 24th Annual Scientific Meeting, Beaumont Hospital, May 1988. Ir J Med Sci 1989. [DOI: 10.1007/bf02943061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Foley-Nolan D, Deegan R, Foley-Nolan A, Hone R, Barry C, Coughlan RJ, Quinlan W, Wong-Chung J, Doyle J, Mulpeter K, Quinn K, Casey E, Feighery C, Quinn C, Hassan J, Whelan A, Bresnihan B, Soden M, FitzGerald M, Gaine S, O’Laoide RM, Feeley J, McInerney DP, O’Brien M, Donohoe N, Comerford FR, Rooney M, O’Connor DP, Noones D, Weir D, Marron P, Keane C, McNicholl J, Glynes D, Hutchinson M, Murray A, Jackson J. Irish Association of Rheumatology and Rehabilitation Proceeding of Meeting held at St Vincent’s Hospital on Friday 30th October, 1987. Ir J Med Sci 1988. [DOI: 10.1007/bf02948318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Marcus A, Feeley J, Volcani T. Protein Synthesis in Imbibed Seeds III. Kinetics of Amino Acid Incorporation Ribosome Activation, and Polysome Formation. Plant Physiol 1966; 41:1167-72. [PMID: 16656380 PMCID: PMC550493 DOI: 10.1104/pp.41.7.1167] [Citation(s) in RCA: 52] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
The kinetics of development of protein-synthesizing capacity in the imbibing wheat embryo, were studied both in vivo and in vitro. During the first 30 minutes of imbibition protein-synthesizing capacity rises rapidly, lagging about 10 minutes behind water uptake. This rise in synthesizing capacity is accompanied by an increase in polysome content. As imbibition continues, both protein-synthesizing capacity and polysome content increase. With embryos from aged seed, the rate of protein synthesis is initially limited by another, presumably nonribosomal, reaction.
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Affiliation(s)
- A Marcus
- Market Quality Research Division, Agricultural Research Service, United States Department of Agriculture, Beltsville, Maryland
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