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Werner J, Wolf L, Tscherpel C, Bauer EK, Wollring M, Ceccon G, Deckert M, Brunn A, Pappesch R, Goldbrunner R, Fink GR, Galldiks N. P11.53.B Efficacy and tolerability of regorafenib in pretreated patients with progressive CNS grade 3 or 4 gliomas. Neuro Oncol 2022. [DOI: 10.1093/neuonc/noac174.242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
The phase 2 REGOMA trial suggested an encouraging overall survival benefit in glioblastoma patients at first relapse treated with the multikinase inhibitor regorafenib. Here, we evaluated the efficacy and side effects of regorafenib in a real-life setting.
Material and Methods
From 2018-2021, 30 patients with progressive WHO CNS grade 3 or 4 gliomas treated with regorafenib (160 mg/d; first 3 weeks of each 4-week cycle) with individual dose adjustment depending on toxicity were retrospectively identified. Side effects were evaluated according to the Common Terminology Criteria for Adverse Events (version 5.0). MRI was obtained at baseline and after every second cycle. Tumor progression was assessed according to RANO criteria. After regorafenib initiation, the median progression-free survival (PFS) and overall survival (OS) were calculated.
Results
The median number of treatment lines before regorafenib was 2 (range, 1-4). The majority of patients (73%) had two or more pretreatment lines. At first relapse, 27% of patients received regorafenib. A total of 94 regorafenib cycles were administered (median number of cycles, 2; range, 1-9 cycles). Grade 3 and 4 side effects were observed in 47% and 7% of patients, respectively, and were not significantly increased in patients with two or more pretreatments (P>0.05). The most frequent grade 3 or 4 side effects were laboratory abnormalities (62%). PFS was 2.6 months (range, 0.8-8.2 months), and the OS was 6.2 months (range, 0.9-24 months).
Conclusion
In patients with progressive WHO grade 3 or 4 gliomas, predominantly with two pretreatment lines or more, regorafenib seems to be effective despite considerable grade 3 or 4 side effects.
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Affiliation(s)
- J Werner
- Dept. of Neurology, Faculty of Medicine and University Hospital Cologne, University of Cologne , Cologne , Germany
| | - L Wolf
- Dept. of Neurology, Faculty of Medicine and University Hospital Cologne, University of Cologne , Cologne , Germany
| | - C Tscherpel
- Dept. of Neurology, Faculty of Medicine and University Hospital Cologne, University of Cologne , Cologne , Germany
- Inst. of Neuroscience and Medicine (INM-3), Research Center Juelich , Juelich , Germany
| | - E K Bauer
- Dept. of Neurology, Faculty of Medicine and University Hospital Cologne, University of Cologne , Cologne , Germany
| | - M Wollring
- Dept. of Neurology, Faculty of Medicine and University Hospital Cologne, University of Cologne , Cologne , Germany
- Inst. of Neuroscience and Medicine (INM-3), Research Center Juelich , Juelich , Germany
| | - G Ceccon
- Dept. of Neurology, Faculty of Medicine and University Hospital Cologne, University of Cologne , Cologne , Germany
| | - M Deckert
- Inst. of Neuropathology, Faculty of Medicine and University Hospital Cologne, University of Cologne , Cologne , Germany
- Center of Integrated Oncology (CIO), Universities of Aachen, Bonn, Cologne, and Düsseldorf , Cologne , Germany
| | - A Brunn
- Inst. of Neuropathology, Faculty of Medicine and University Hospital Cologne, University of Cologne , Cologne , Germany
| | - R Pappesch
- Inst. of Pathology, Faculty of Medicine and University Hospital Cologne, University of Cologne , Cologne , Germany
| | - R Goldbrunner
- Dept. of General Neurosurgery, Faculty of Medicine and University Hospital Cologne, University of Cologne , Cologne , Germany
- Center of Integrated Oncology (CIO), Universities of Aachen, Bonn, Cologne, and Düsseldorf , Cologne , Germany
| | - G R Fink
- Dept. of Neurology, Faculty of Medicine and University Hospital Cologne, University of Cologne , Cologne , Germany
- Inst. of Neuroscience and Medicine (INM-3), Research Center Juelich , Juelich , Germany
| | - N Galldiks
- Dept. of Neurology, Faculty of Medicine and University Hospital Cologne, University of Cologne , Cologne , Germany
- Inst. of Neuroscience and Medicine (INM-3), Research Center Juelich , Juelich , Germany
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2
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Rosen J, Ceccon G, Bauer EK, Werner JM, Kabbasch C, Fink GR, Langen KJ, Galldiks N. P14.41 Cost-effectiveness of FET PET for early treatment response assessment in glioma patients following adjuvant temozolomide chemotherapy. Neuro Oncol 2021. [DOI: 10.1093/neuonc/noab180.158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
BACKGROUND
In light of increasing healthcare costs, higher medical expenses should be justified socio-economically. Therefore, we calculated the effectiveness and cost-effectiveness of PET using the radiolabeled amino acid O-(2-[18F]-fluoroethyl)-L-tyrosine (FET) compared to conventional MRI for early identification of responders to adjuvant temozolomide chemotherapy. A recent study in IDH-wildtype glioma patients suggested that after two cycles, FET-PET parameter changes predicted a significantly longer survival while MRI changes were not significant.
MATERIALS AND METHODS
To determine the effectiveness and cost-effectiveness of serial FET-PET imaging, we analyzed published clinical data and calculated the associated costs in the context of the German healthcare system.Based on a decision-tree model, FET-PET and MRI’s effectiveness was calculated, i.e., the probability to correctly identify a responder as defined by an overall survival ≥15 months. To determine the cost-effectiveness, the incremental cost-effectiveness ratio (ICER) was calculated, i.e., the cost for each additionally identified responder by FET-PET who would have remained undetected by MRI. The robustness of the results was tested by deterministic and probabilistic (Monte Carlo simulation) sensitivity analyses.
RESULTS
Compared to MRI, FET-PET increases the rate of correctly identified responders to chemotherapy by 26%; thus, four patients need to be examined by FET-PET to identify one additional responder. Considering the respective cost for serial FET-PET and MRI, the ICER resulted in €4,396.83 for each additional correctly identified responder by FET-PET. The sensitivity analyses confirmed the robustness of the results.
CONCLUSION
In contrast to conventional MRI, the model suggests that FET PET is cost-effective in terms of ICER values. Concerning the high cost of temozolomide, the integration of FET-PET has the potential to avoid premature chemotherapy discontinuation at a reasonable cost.
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Affiliation(s)
- J Rosen
- Dept. of Neurology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - G Ceccon
- Dept. of Neurology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - E K Bauer
- Dept. of Neurology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - J M Werner
- Dept. of Neurology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - C Kabbasch
- Department of Neuroradiology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - G R Fink
- Dept. of Neurology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
- Institute of Neuroscience and Medicine (INM-3, -4), Research Center Juelich, Juelich, Germany
| | - K J Langen
- Institute of Neuroscience and Medicine (INM-3, -4), Research Center Juelich, Juelich, Germany
- Dept. of Nuclear Medicine, University Hospital Aachen, Aachen, Germany
| | - N Galldiks
- Dept. of Neurology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
- Institute of Neuroscience and Medicine (INM-3, -4), Research Center Juelich, Juelich, Germany
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3
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Lohmann P, Stavrinou P, Lipke K, Bauer EK, Ceccon G, Werner J, Fink GR, Shah NJ, Langen K, Galldiks N. P14.32 Spatial discrepancies between FET PET and conventional MRI in patients with newly diagnosed glioblastoma. Neuro Oncol 2019. [DOI: 10.1093/neuonc/noz126.267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
BACKGROUND
In patients with glioblastoma, the tissue showing contrast enhancement (CE) in MRI is usually the target for resection or radiotherapy. However, the solid tumor mass typically extends beyond the area of CE. Amino acid PET can detect tumor parts that show no CE. We systematically investigated tumor volumes delineated by amino acid PET and MRI in newly diagnosed, untreated glioblastoma patients.
MATERIAL AND METHODS
Preoperatively, 50 patients with subsequently neuropathologically confirmed glioblastoma underwent O-(2-[18F]-fluoroethyl)-L-tyrosine (FET) PET, fluid-attenuated inversion recovery (FLAIR), and CE MRI. Areas of CE were manually delineated. FET PET tumor volumes were segmented using a tumor-to-brain ratio ≥ 1.6. The percentage of overlapping volumes (OV), as well as Dice and Jaccard spatial similarity coefficients (DSC; JSC), were calculated. FLAIR images were evaluated visually.
RESULTS
In 86% of patients (n = 43), the FET PET tumor volume was significantly larger than the volume of CE (21.5 ± 14.3 mL vs. 9.4 ± 11.3 mL; P < 0.001). Forty patients (80%) showed both an increased uptake of FET and CE. In these 40 patients, the spatial similarity between FET and CE was low (mean DSC, 0.39 ± 0.21; mean JSC, 0.26 ± 0.16). Ten patients (20%) showed no CE, and one of these patients showed no FET uptake. In 10% of patients (n = 5), increased FET uptake was present outside of areas of FLAIR hyperintensity.
CONCLUSION
Our results show that the metabolically active tumor volume delineated by FET PET is significantly larger than tumor volume delineated by CE. The data strongly suggest that the information derived from FET PET should be integrated into the management of newly diagnosed glioblastoma patients.
FUNDING
This work was supported by the Wilhelm-Sander Stiftung, Germany
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Affiliation(s)
- P Lohmann
- Institute of Neuroscience and Medicine (INM-3,-4), Research Center Juelich, Juelich, Germany
| | - P Stavrinou
- Department of Neurosurgery, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - K Lipke
- Institute of Neuroscience and Medicine (INM-3,-4), Research Center Juelich, Juelich, Germany
| | - E K Bauer
- Department of Neurology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - G Ceccon
- Department of Neurology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - J Werner
- Department of Neurology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - G R Fink
- Institute of Neuroscience and Medicine (INM-3,-4), Research Center Juelich, Juelich, Germany
- Department of Neurology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - N J Shah
- Institute of Neuroscience and Medicine (INM-3,-4), Research Center Juelich, Juelich, Germany
- Department of Neurology, University Hospital RWTH Aachen, Aachen, Germany
| | - K Langen
- Institute of Neuroscience and Medicine (INM-3,-4), Research Center Juelich, Juelich, Germany
- Department of Nuclear Medicine, University Hospital RWTH Aachen, Aachen, Germany
| | - N Galldiks
- Institute of Neuroscience and Medicine (INM-3,-4), Research Center Juelich, Juelich, Germany
- Department of Neurology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
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Werner J, Stoffels G, Lichtenstein T, Borggrefe J, Lohmann P, Ceccon G, Fink GR, Langen K, Kabbasch C, Galldiks N. P14.17 Differentiation of treatment-related changes from tumor progression: A direct comparison between dynamic FET PET and ADC values obtained from DWI MRI. Neuro Oncol 2019. [DOI: 10.1093/neuonc/noz126.252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
BACKGROUND
Following brain cancer treatment, the capacity of anatomical MRI to differentiate neoplastic tissue from treatment-related changes (e.g., pseudoprogression) is limited. This study compared apparent diffusion coefficients (ADC) obtained by diffusion-weighted MRI (DWI) with static and dynamic parameters of O-(2-[18F]fluoroethyl)-L-tyrosine (FET) PET for the differentiation of treatment-related changes from tumor progression.
MATERIAL AND METHODS
Forty-eight pretreated high-grade glioma patients with anatomical MRI findings suspicious for progression (median time elapsed since last treatment, 16 weeks) were investigated using DWI and dynamic FET PET. Maximum and mean tumor-to-brain ratios (TBRmax, TBRmean) as well as dynamic parameters (time-to-peak and slope values) of FET uptake were calculated. For mean ADC calculation, regions-of-interest analyses were performed on ADC maps calculated from DWI co-registered with the contrast-enhanced MR image. Diagnoses were confirmed neuropathologically (21%) or clinicoradiologically. Diagnostic performance was evaluated using receiver-operating-characteristic analyses or Fisher’s exact test for a combinational approach.
RESULTS
Ten of 48 patients had treatment-related changes (21%). The diagnostic performance of FET PET was significantly higher (threshold for both TBRmax and TBRmean, 1.95; accuracy, 83%; AUC, 0.89±0.05; P<0.001) than that of ADC values (threshold ADC, 1.09x10-3 mm2/s; accuracy, 69%; AUC, 0.73±0.09; P=0.13). The addition of static FET PET parameters to ADC values increased the latter’s accuracy to 89%. The highest accuracy was achieved by combining static and dynamic FET PET parameters (93%).
CONCLUSION
Data suggest that static and dynamic FET PET provide valuable information concerning the differentiation of early treatment-related changes from tumor progression and outperform ADC measurement for this highly relevant clinical question.
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Affiliation(s)
- J Werner
- Dept. of Neurology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - G Stoffels
- Inst. of Neuroscience and Medicine (INM-3, -4), Research Center Juelich, Juelich, Germany
| | - T Lichtenstein
- Dept. of Neuroradiology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - J Borggrefe
- Dept. of Neuroradiology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - P Lohmann
- Inst. of Neuroscience and Medicine (INM-3, -4), Research Center Juelich, Juelich, Germany
| | - G Ceccon
- Dept. of Neurology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - G R Fink
- Dept. of Neurology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
- Inst. of Neuroscience and Medicine (INM-3, -4), Research Center Juelich, Juelich, Germany
| | - K Langen
- Inst. of Neuroscience and Medicine (INM-3, -4), Research Center Juelich, Juelich, Germany
- Dept. of Nuclear Medicine, University Hospital Aachen, Aachen, Germany
| | - C Kabbasch
- Dept. of Neuroradiology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - N Galldiks
- Dept. of Neurology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
- Inst. of Neuroscience and Medicine (INM-3, -4), Research Center Juelich, Juelich, Germany
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Ribeiro LM, Flauzino DS, Ceccon G. ATRIBUTOS FÍSICOS DO SOLO E CRESCIMENTO DE RAIZ DA SOJA APÓS CULTIVOS DE OUTONO-INVERNO. Revista Brasileira de Engenharia de Biossistemas 2019. [DOI: 10.18011/bioeng2019v13n1p36-43] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Cultivos antecedentes podem modificar as condições físicas do solo, o desenvolvimento e produtividade das culturas. Objetivou-se avaliar os atributos físicos do solo e o crescimento de raízes da soja após cultivos de outono-inverno. O experimento foi conduzido na área experimental da Embrapa Agropecuária Oeste, em Dourados, MS, em LATOSSOLO VERMELHO distroférrico de textura argilosa. O delineamento experimental foi em blocos casualizados com parcelas sub-divididas, com quatro repetições. Nas parcelas foram alocados os quatro cultivos de outono-inverno (Urochloa ruziziensis, consórcio de milho com U. ruziziensis, milho safrinha e feijão-caupi (Vigna unguiculata)) e as sub-parcelas as duas cultivares de soja BRS 284 e BRS 360 RR. Foram coletadas amostras de solo e de raízes da soja nas profundidades 0,0 - 0,10 m; 0,10 - 0,20 m; 0,20 - 0,30 m; 0,30 - 0,40 m. O tipo de cultivo interferiu na qualidade física do solo. O feijão-caupi e U. ruziziensis proporcionaram maior microporosidade e porosidade total do solo; o consórcio milho com U. ruziziensis proporcionou maior macroporosidade e porosidade total do solo; o milho safrinha acarretou em maior densidade do solo, mas a soja apresentou maior crescimento de raízes após a U. ruziziensis.
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Affiliation(s)
- L. M. Ribeiro
- UFGD - Universidade Federal da Grande Dourados, Dourados, MS, Brasil
| | - D. S. Flauzino
- SENAR-MS - Serviço Nacional de Aprendizagem Rural, Dourados, MS, Brasil
| | - G. Ceccon
- Embrapa Agropecuária Oeste - CPAO, Dourados, MS, Brasil
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6
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Veronezi SDF, Ribeiro LM, Ceccon G. USO DE Azospirillum brasilense EM MILHO SAFRINHA SOLTEIRO E CONSORCIADO COM Brachiaria ruziziensis. Revista Brasileira de Engenharia de Biossistemas 2018. [DOI: 10.18011/bioeng2018v12n4p349-360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
A pesquisa teve como objetivo avaliar o desenvolvimento do milho solteiro e consorciado com B. ruziziensis, após aplicações de Azospirillum brasilense. O experimento foi conduzido na Embrapa-CPAO, Dourados-MS. O delineamento experimental foi DBC em parcelas subdivididas com quatro repetições. As parcelas principais foram milho solteiro e consorciado; nas subparcelas as aplicações de A. brasilense: T1) P-K (testemunha); T2) P-K + A. brasilense foliar; T3) P-K + A. brasilense na semente; T4) N-P-K; T5) N-P-K + A. brasilense foliar; T6) N-P-K + N em cobertura; T7) N-P-K + A. brasilense na semente; T8) N-P-K + A. brasilense na semente + N em cobertura. Na floração avaliou-se altura da planta, inserção da espiga, diâmetro do colmo, índice de área foliar, clorofila a, b e total, e na colheita a biomassa seca total do milho, de 100 grãos, de grãos por espiga e rendimento de grãos. Nas folhas verdes, nos grãos e nos tecidos secos da planta após colheita, foram avaliados teores de N, P, K, Ca, Mg, S, Cu, Fe, B, Mn e Zn. Os dados foram submetidos à análise de variância e as médias comparadas pelo teste de Tukey (p<0,05). A aplicação de A. brasilense estimulou o crescimento do milho safrinha, independentemente da modalidade de cultivo. Utilização de N e de A. brasilense na semeadura resulta no melhor desenvolvimento vegetativo do milho sem interferir na produtividade de grãos.
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Affiliation(s)
- S. D. F. Veronezi
- UEMS-Universidade Estadual do Mato Grosso do Sul, departamento de Produção Vegetal, Aquidauana, MS, Brasil
| | - L. M. Ribeiro
- UFGD-Universidade Federal da Grande Dourados, departamento de Produção Vegetal, Dourados, MS, Brasil
| | - G. Ceccon
- Embrapa Agropecuária Oeste-CPAO, Dourados, MS, Brasil
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7
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Maddalo M, Moschini I, Benecchi G, Calabri E, Rossi R, Losardo P, Bergamini M, Dell’Anna C, Ceccon G, Grondelli C, Nurmahomed S, Gianni S, Rossi R, Manicone M, Andreani S, Ghetti F, Salaroli F, Ghetti C, D’Abbiero N. 42. The role of emphysema on radiation-induced lung toxicity and the feasibility of a “functional treatment plan”. Phys Med 2018. [DOI: 10.1016/j.ejmp.2018.04.052] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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8
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Maddalo M, Benecchi G, Grondelli C, Calabri E, Rossi R, Losardo P, Bergamini M, Dell’Anna C, Ceccon G, Nurmahomed S, Gianni S, Rossi R, Manicone M, Andreani S, Ghetti F, Salaroli F, Ghetti C, D’Abbiero N. 172. Predictors of cardiac dose reduction achieved with deep inspiration breath hold technique over free breathing technique in left breast radiotherapy. Phys Med 2018. [DOI: 10.1016/j.ejmp.2018.04.183] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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9
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Lohmann P, Stavrinou P, Lipke K, Bauer EK, Ceccon G, Werner J, Fink GR, Shah NJ, Langen K, Galldiks N. P01.014 Spatial correlation of FET uptake and MRI contrast enhancement in newly diagnosed glioblastoma patients prior to treatment. Neuro Oncol 2018. [DOI: 10.1093/neuonc/noy139.056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- P Lohmann
- Inst. of Neuroscience and Medicine, Forschungszentrum Juelich, Juelich, Germany
| | - P Stavrinou
- Dept. of Neurosurgery, University Cologne, Cologne, Germany
| | - K Lipke
- Inst. of Neuroscience and Medicine, Forschungszentrum Juelich, Juelich, Germany
| | - E K Bauer
- Dept. of Neurology, University of Cologne, Cologne, Germany
| | - G Ceccon
- Dept. of Neurology, University of Cologne, Cologne, Germany
| | - J Werner
- Dept. of Neurology, University of Cologne, Cologne, Germany
| | - G R Fink
- Inst. of Neuroscience and Medicine, Forschungszentrum Juelich, Juelich, Germany
- Dept. of Neurology, University of Cologne, Cologne, Germany
| | - N J Shah
- Inst. of Neuroscience and Medicine, Forschungszentrum Juelich, Juelich, Germany
- Dept. of Neurology, University Hospital RWTH Aachen, Aachen, Germany
| | - K Langen
- Inst. of Neuroscience and Medicine, Forschungszentrum Juelich, Juelich, Germany
- Dept. of Nuclear Medicine, University Hospital RWTH Aachen, Aachen, Germany
| | - N Galldiks
- Inst. of Neuroscience and Medicine, Forschungszentrum Juelich, Juelich, Germany
- Dept. of Neurology, University of Cologne, Cologne, Germany
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10
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Lohmann P, Kocher M, Ceccon G, Bauer EK, Stoffels G, Viswanathan S, Ruge MI, Neumaier B, Shah NJ, Fink GR, Langen K, Galldiks N. P05.11 Combined FET PET/MRI radiomics for the differentiation of radiation injury from recurrent brain metastasis. Neuro Oncol 2018. [DOI: 10.1093/neuonc/noy139.337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- P Lohmann
- Inst. of Neuroscience and Medicine, Forschungszentrum Juelich, Juelich, Germany
- Dept. of Stereotaxy and Functional Neurosurgery, University of Cologne, Cologne, Germany
| | - M Kocher
- Inst. of Neuroscience and Medicine, Forschungszentrum Juelich, Juelich, Germany
- Dept. of Stereotaxy and Functional Neurosurgery, University of Cologne, Cologne, Germany
| | - G Ceccon
- Dept. of Neurology, University of Cologne, Cologne, Germany
| | - E K Bauer
- Dept. of Neurology, University of Cologne, Cologne, Germany
| | - G Stoffels
- Inst. of Neuroscience and Medicine, Forschungszentrum Juelich, Juelich, Germany
| | - S Viswanathan
- Inst. of Neuroscience and Medicine, Forschungszentrum Juelich, Juelich, Germany
| | - M I Ruge
- Dept. of Stereotaxy and Functional Neurosurgery, University of Cologne, Cologne, Germany
| | - B Neumaier
- Inst. of Neuroscience and Medicine, Forschungszentrum Juelich, Juelich, Germany
| | - N J Shah
- Inst. of Neuroscience and Medicine, Forschungszentrum Juelich, Juelich, Germany
- Dept. of Neurology, University Hospital RWTH Aachen, Aachen, Germany
| | - G R Fink
- Inst. of Neuroscience and Medicine, Forschungszentrum Juelich, Juelich, Germany
- Dept. of Neurology, University of Cologne, Cologne, Germany
| | - K Langen
- Inst. of Neuroscience and Medicine, Forschungszentrum Juelich, Juelich, Germany
- Dept. of Nuclear Medicine, University Hospital RWTH Aachen, Aachen, Germany
| | - N Galldiks
- Inst. of Neuroscience and Medicine, Forschungszentrum Juelich, Juelich, Germany
- Dept. of Neurology, University of Cologne, Cologne, Germany
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11
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Grondelli C, Benecchi G, Maddalo M, Nurmohamed S, Gianni S, Rossi R, Manicone M, Andreani S, Ghetti F, Salaroli F, Calabri E, Rossi R, Moschini I, Dell'Anna C, Ceccon G, Bergamini M, Losardo P, Ghetti C, D'Abbiero N. EP-1965: Predictors of cardiac dose reduction achieved with deep inspiration breath hold. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)32274-6] [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: 10/14/2022]
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Torres FE, Teodoro PE, Rodrigues EV, Santos A, Corrêa AM, Ceccon G. Simultaneous selection for cowpea (Vigna unguiculata L.) genotypes with adaptability and yield stability using mixed models. Genet Mol Res 2016; 15:gmr8272. [PMID: 27173301 DOI: 10.4238/gmr.15028272] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The aim of this study was to select erect cowpea (Vigna unguiculata L.) genotypes simultaneously for high adaptability, stability, and yield grain in Mato Grosso do Sul, Brazil using mixed models. We conducted six trials of different cowpea genotypes in 2005 and 2006 in Aquidauana, Chapadão do Sul, Dourados, and Primavera do Leste. The experimental design was randomized complete blocks with four replications and 20 genotypes. Genetic parameters were estimated by restricted maximum likelihood/best linear unbiased prediction, and selection was based on the harmonic mean of the relative performance of genetic values method using three strategies: selection based on the predicted breeding value, having considered the performance mean of the genotypes in all environments (no interaction effect); the performance in each environment (with an interaction effect); and the simultaneous selection for grain yield, stability, and adaptability. The MNC99542F-5 and MNC99-537F-4 genotypes could be grown in various environments, as they exhibited high grain yield, adaptability, and stability. The average heritability of the genotypes was moderate to high and the selective accuracy was 82%, indicating an excellent potential for selection.
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Affiliation(s)
- F E Torres
- Departamento de Fitotecnia, Universidade Estadual do Mato Grosso do Sul, Aquidauana, MS, Brasil
| | - P E Teodoro
- Departamento de Biologia Geral, Universidade Federal de Viçosa, Viçosa, MG, Brasil
| | - E V Rodrigues
- Departamento de Genética e Melhoramento de Plantas, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, RJ, Brasil
| | - A Santos
- Departamento de Genética e Melhoramento de Plantas, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, RJ, Brasil
| | - A M Corrêa
- Departamento de Fitotecnia, Universidade Estadual do Mato Grosso do Sul, Aquidauana, MS, Brasil
| | - G Ceccon
- Setor de Produção Vegetal, Embrapa Agropecuária-Oeste, Dourados, MS, Brasil
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Barroso LMA, Teodoro PE, Nascimento M, Torres FE, Dos Santos A, Corrêa AM, Sagrilo E, Corrêa CCG, Silva FA, Ceccon G. Bayesian approach increases accuracy when selecting cowpea genotypes with high adaptability and phenotypic stability. Genet Mol Res 2016; 15:15017625. [PMID: 26985961 DOI: 10.4238/gmr.15017625] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
This study aimed to verify that a Bayesian approach could be used for the selection of upright cowpea genotypes with high adaptability and phenotypic stability, and the study also evaluated the efficiency of using informative and minimally informative a priori distributions. Six trials were conducted in randomized blocks, and the grain yield of 17 upright cowpea genotypes was assessed. To represent the minimally informative a priori distributions, a probability distribution with high variance was used, and a meta-analysis concept was adopted to represent the informative a priori distributions. Bayes factors were used to conduct comparisons between the a priori distributions. The Bayesian approach was effective for selection of upright cowpea genotypes with high adaptability and phenotypic stability using the Eberhart and Russell method. Bayes factors indicated that the use of informative a priori distributions provided more accurate results than minimally informative a priori distributions.
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Affiliation(s)
- L M A Barroso
- Departamento de Estatística, Universidade Federal de Viçosa, Viçosa, MG, Brasil
| | - P E Teodoro
- Departamento de Fitotecnia, Universidade Estadual de Mato Grosso do Sul, Aquidauana, MS, Brasil
| | - M Nascimento
- Departamento de Estatística, Universidade Federal de Viçosa, Viçosa, MG, Brasil
| | - F E Torres
- Departamento de Fitotecnia, Universidade Estadual de Mato Grosso do Sul, Aquidauana, MS, Brasil
| | - A Dos Santos
- Departamento de Melhoramento Genético, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, RJ, Brasil
| | - A M Corrêa
- Departamento de Fitotecnia, Universidade Estadual de Mato Grosso do Sul, Aquidauana, MS, Brasil
| | - E Sagrilo
- Embrapa Meio-Norte, Teresina, PI, Brasil
| | - C C G Corrêa
- Departamento de Fitotecnia, Universidade Estadual de Mato Grosso do Sul, Aquidauana, MS, Brasil
| | - F A Silva
- Departamento de Fitotecnia, Universidade Estadual de Mato Grosso do Sul, Aquidauana, MS, Brasil
| | - G Ceccon
- Embrapa Agropecuária-Oeste, Dourados, MS, Brasil
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Benecchi G, Bonomi L, Palleri F, Calabri E, Rossi R, Ceccon G, Ghetti C. Development of an adaptive radiotherapy method using portal imaging and CBCT. Phys Med 2016. [DOI: 10.1016/j.ejmp.2016.01.014] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Teodoro P, Torres F, Santos A, Corrêa A, Nascimento M, Barroso L, Ceccon G. Measurements of experimental precision for trials with cowpea (Vigna unguiculata L. Walp.) genotypes. Genet Mol Res 2016; 15:gmr7991. [DOI: 10.4238/gmr.15027991] [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: 11/03/2022]
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Galldiks N, Ruge MI, Hamisch C, Stoffels G, Ceccon G, Rapp M, Sabel M, Langen K. O7.05 * DIFFERENTIATION OF LOCAL RECURRENT BRAIN METASTASIS FROM RADIATION-INDUCED CHANGES USING O-(2-[18F]FLUOROETHYL)-L-TYROSINE PET. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou174.56] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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