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Burns R, Mulé S, Blanc-Durand P, Tofighi M, Belhadj K, Zerbib P, Le Bras F, Baranes L, Haioun C, Itti E, Luciani A. Optimization of whole-body 2-[ 18F]FDG-PET/MRI imaging protocol for the initial staging of patients with myeloma. Eur Radiol 2021; 32:3085-3096. [PMID: 34842956 DOI: 10.1007/s00330-021-08388-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 09/08/2021] [Accepted: 09/30/2021] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To determine the optimal 2-[18F]FDG-PET/MRI imaging protocol for the initial staging of patients with suspected or confirmed multiple myeloma. METHODS Radiologists and nuclear medicine specialists reviewed all PET/MRI exams of 104 patients with a monoclonal gammopathy (MG). The presence of focal and diffuse bone marrow involvement (BMI) was assessed using 4 different image datasets: WB-MRI, PET, WB-PET/MRI, and WB-DCE-PET/MRI. A reference standard was established by a panel review of all baseline and follow-up imaging, and biological and pathological information. The diagnostic performance for each image dataset to detect BMI was evaluated and compared (Fisher's exact test). RESULTS Sensitivity, specificity, and accuracy for focal BMI of WB-MRI was 87%, 97%, and 92%; of PET was 78%, 97%, and 95%; of WB-PET/MRI was 93%, 97%, and 95%; and of WB-DCE-PET/MRI was 93%, 97%, and 95%, respectively. WB-PET/MRI and WB-DCE-PET/MRI were statistically superior to PET (p = 0.036) without decreasing specificity. The sensitivity, specificity, and accuracy of WB-MRI for diffuse BMI detection was 91%, 80%, and 85%; of 3DT1-PET was 53%, 89%, and 74%; of WB-PET/MRI was 98%, 66%, and 79%; and of WB-DCE-PET/MRI was 98%, 59%, and 75%, respectively. PET lacked sensitivity compared to all other dataset studies (p < 0.0001). WB-MRI had the best accuracy without reaching statistical significance when compared to the other datasets. CONCLUSION The WB-PET/MRI dataset including T1 and T2 Dixon, WB-DWI, and PET images provides optimal diagnostic performance to detect both focal lesions and diffuse BMI, with limited added value of WB-DCE for baseline staging of patients with MG. Key Points • The combination of morphological and functional MRI sequences and metabolic (2-[18F]FDG-PET) images increases the diagnostic performance of PET/MRI to detect focal bone lesions. • The adjunction of dynamic contrast-enhanced sequences did not improve diagnostic performance.
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Affiliation(s)
- Robert Burns
- SyMPTOm PET/MRI Platform, Henri Mondor Hospital, AP-HP, 94010, Créteil, France. .,Department of Medical Imaging, 51 Av. du Maréchal de Lattre de Tassigny, Henri Mondor Hospital, AP-HP, 94010, Créteil, France.
| | - Sébastien Mulé
- SyMPTOm PET/MRI Platform, Henri Mondor Hospital, AP-HP, 94010, Créteil, France.,Department of Medical Imaging, 51 Av. du Maréchal de Lattre de Tassigny, Henri Mondor Hospital, AP-HP, 94010, Créteil, France.,Université Paris-Est Créteil, 94010, Créteil, France
| | - Paul Blanc-Durand
- SyMPTOm PET/MRI Platform, Henri Mondor Hospital, AP-HP, 94010, Créteil, France.,Université Paris-Est Créteil, 94010, Créteil, France.,Department of Nuclear Medicine, Henri Mondor Hospital, AP-HP, 94010, Créteil, France
| | - Mojdeh Tofighi
- SyMPTOm PET/MRI Platform, Henri Mondor Hospital, AP-HP, 94010, Créteil, France.,Department of Nuclear Medicine, Henri Mondor Hospital, AP-HP, 94010, Créteil, France
| | - Karim Belhadj
- Hematology Department, University Hospital, Creteil, France
| | - Pierre Zerbib
- SyMPTOm PET/MRI Platform, Henri Mondor Hospital, AP-HP, 94010, Créteil, France.,Department of Medical Imaging, 51 Av. du Maréchal de Lattre de Tassigny, Henri Mondor Hospital, AP-HP, 94010, Créteil, France
| | - Fabien Le Bras
- Hematology Department, University Hospital, Creteil, France
| | - Laurence Baranes
- SyMPTOm PET/MRI Platform, Henri Mondor Hospital, AP-HP, 94010, Créteil, France.,Department of Medical Imaging, 51 Av. du Maréchal de Lattre de Tassigny, Henri Mondor Hospital, AP-HP, 94010, Créteil, France
| | - Corinne Haioun
- Université Paris-Est Créteil, 94010, Créteil, France.,Hematology Department, University Hospital, Creteil, France
| | - Emmanuel Itti
- SyMPTOm PET/MRI Platform, Henri Mondor Hospital, AP-HP, 94010, Créteil, France.,Université Paris-Est Créteil, 94010, Créteil, France.,Department of Nuclear Medicine, Henri Mondor Hospital, AP-HP, 94010, Créteil, France
| | - Alain Luciani
- SyMPTOm PET/MRI Platform, Henri Mondor Hospital, AP-HP, 94010, Créteil, France.,Department of Medical Imaging, 51 Av. du Maréchal de Lattre de Tassigny, Henri Mondor Hospital, AP-HP, 94010, Créteil, France.,Université Paris-Est Créteil, 94010, Créteil, France
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Tofighi M, Tirgari B, Fooladvandi M, Rasouli F, Jalali M. Relationship between emotional intelligence and organizational citizenship behavior in critical and emergency nurses in south east of Iran. Ethiop J Health Sci 2015; 25:79-88. [PMID: 25733788 PMCID: PMC4337087 DOI: 10.4314/ejhs.v25i1.11] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Several factors including emotional intelligence affect the efficiency of people. It seems that organizational behavior of each person is strongly influenced by emotional intelligence. Therefore, the present study is aimed to examine the relationship between emotional intelligence and organizational citizenship behavior in critical and emergency nurses in teaching hospitals supervised by Kerman Medical University in Southeast of Iran. METHODS This study employed a descriptive cross sectional design. A census sample consisted of 150 critical and emergency nurses working in teaching hospitals supervised by Kerman Medical University participated in this study. Emotional intelligence and organizational citizenship behavior questionnaire was used to assess nurses' emotional intelligence and organizational citizenship behavior by available sampling method. RESULTS The results showed that the mean age of the participants was 35 years. Most participants (94%) were females and belonged to the age group of 26-30 years. Overall mean score of organizational citizenship behavior scale was 88.21 (±10.4). In the organizational citizenship behavior categories, altruism mean score was higher than the other mean scores. Overall mean score of emotional intelligence was (121.08 ± 17.56). In the subgroups of emotional intelligence, mean score of the relationship management, was higher than the average of other factors. Pearson's correlation coefficient showed no significant relationship between emotional intelligence and organizational citizenship behavior (p ≥ 0.05). CONCLUSIONS The study suggests that health care managers should organize systematic and dynamic policies and procedures in dealing with emotional intelligence and organizational citizenship behavior to assist critical and emergency nurses.
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Affiliation(s)
- M Tofighi
- School of Nursing and Midwifery, Kerman University of Medical Sciences, Kerman, Iran
| | - B Tirgari
- Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - M Fooladvandi
- School of Nursing and Midwifery, Kerman University of Medical Sciences, Kerman, Iran
| | - F Rasouli
- School of Nursing and Midwifery, Kerman University of Medical Sciences, Kerman, Iran
| | - M Jalali
- School of Nursing and Midwifery, Esfahan University of Medical Silences, Esfahan, Iran
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Belhaj-Tayeb H, Briane D, Vergote J, Kothan S, Léger G, Bendada SE, Tofighi M, Tamgac F, Cao A, Moretti JL. In vitro and in vivo study of 99mTc-MIBI encapsulated in PEG-liposomes: a promising radiotracer for tumour imaging. Eur J Nucl Med Mol Imaging 2003; 30:502-9. [PMID: 12536243 DOI: 10.1007/s00259-002-1038-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2002] [Accepted: 10/08/2002] [Indexed: 02/07/2023]
Abstract
Encapsulation of technetium-99m sestamibi ((99m)Tc-MIBI) in polyethyleneglycol-liposomes ((99m)Tc-MIBI-PEG-liposomes) could extend the duration of its circulation in blood and alter its biodistribution, enabling its concentration in tumours to be increased. An original method to encapsulate (99m)Tc-MIBI in PEG-liposomes is described. The (99m)Tc-MIBI-PEG-liposomes were compared with free (99m)Tc-MIBI with respect to (a) tumour availability (b) ability to distinguish between chemotherapy-sensitive and -resistant cells and (c) uptake ratio in tumour imaging. PEG-liposomal systems composed of distearoylphosphatidylcholine/cholesterol/PEG(2000)-distearoyl phosphatidylethanolamine and lissamine-rhodamine B-labelled liposomes were used. The encapsulation of (99m)Tc-MIBI in liposomes was achieved using the K(+) diffusion potential method. We compared the uptake of free versus encapsulated (99m)Tc-MIBI by sensitive and resistant erythroleukaemia (K562) and breast tumour (MCF-7ras) cells. To assess the internalisation of these liposomes into cells, rhodamine B-labelled PEG-liposomes were used and visualised by fluorescence microscopy. Biodistribution and imaging characteristics of encapsulated and free radiotracer were determined in rats and tumour-bearing nude mice. The efficiency of (99m)Tc-MIBI encapsulation in PEG-liposomes was 50+/-5%. Use of (99m)Tc-MIBI-PEG-liposomes did not impair the ability of this tracer to distinguish between chemotherapy-sensitive and -resistant tumour cells; the percentage of radioactivity accumulated in the sensitive K562 cells was 1.24+/-0.04%, as compared with 0.41+/-0.04% in the resistant K562 cells. One hour post injection in rats, PEG-liposomes showed a ten times higher activity in blood than free (99m)Tc-MIBI, whereas activity of free (99m)Tc-MIBI in kidneys and bladder was markedly higher than that of encapsulated (99m)Tc-MIBI, indicating faster clearance of the free radiotracer. In the (MCF7-ras)-bearing nude mice, PEG-liposome uptake in tumour was two times that of free (99m)Tc-MIBI. Summarising, the (99m)Tc-MIBI-PEG-liposomes demonstrated a longer blood circulation time, enabled distinction between chemotherapy-sensitive and -resistant cells and improved tumour to background contrast in in vivo imaging. (99m)Tc-MIBI-PEG-liposomes therefore show promising potential for tumour imaging.
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Affiliation(s)
- Hayet Belhaj-Tayeb
- Laboratoire de radiopharmacologie et traitement de l'image, UPRES 2360, Université de Paris Nord, 74 rue Marcel Cachin, 93017 Bobigny cedex, France
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