LIVIVO - Search results -

Search results

Result 1 - 10 of total 26

Search options

Article: Is systematic Gadolinium injection relevant during MRI follow-up for non-functioning pituitary macroadenomas?

Villemaire, Axel / Adam, Gilles / Fayolle, Hélio / Roques, Margaux / Darcourt, Jean / Caron, Philippe / Bonneville, Fabrice

Journal of neuroradiology = Journal de neuroradiologie

2022 Volume 50, Issue 1, Page(s) 3–8

Abstract: Objective: To compare the performance of coronal contrast-enhanced T1-weighted (ceT1-w) and T2-weighted (T2-w) sequences for diagnosing progression during the MRI follow-up of Non-Functioning Pituitary MacroAdenomas (NFPMAs).: Patients and methods: ... ...

Abstract	Objective: To compare the performance of coronal contrast-enhanced T1-weighted (ceT1-w) and T2-weighted (T2-w) sequences for diagnosing progression during the MRI follow-up of Non-Functioning Pituitary MacroAdenomas (NFPMAs). Patients and methods: 106 patients, who had at least two MRIs for the follow-up of NFPMA, were enrolled retrospectively. The largest adenoma diameter was measured on coronal ceT1-w sequences and separately on T2-w sequences for all follow-up MRIs. Interobserver variability was also assessed by 2 independent neuroradiologists in a sample series of 100 examinations. Progression was defined by an increase ≥ 2 mm in diameter between 2 MRIs. Progression thresholds of 3 and 4 mm were also tested. The results of ceT1-w and T2-w sequences were analysed for concordance. Results: 93.1% concordance was achieved between ceT1-w and T2-w coronal sequences in 580 follow-up MRIs. In the case of progression detected on at least one sequence, 64.4% concordance was documented for a 2-mm threshold, 87.7% for 3-mm and 97.1% for 4-mm. Discordance was mainly observed on the first postoperative MRI and in case of NFPMAs with multiple recurrences. Kappa was better for diagnosing progression on T2-w than on ceT1-w sequences (0.67 vs. 0.54). It should be noted that 100% agreement was observed between the 2 sequences in the 82 follow-up MRIs of patients with complete surgical resection. Conclusion: 93.1% concordance was achieved for coronal ceT1-w and T2-w sequences during the MRI follow-up of NFPMAs, thus challenging systematic injection of gadolinium. If MRI without gadolinium injection is a first-line option, our results suggest that ceT1-w sequences should be reserved for the first postoperative MRI and for the follow-up of aggressive and recurrent NFPMAs.
MeSH term(s)	Humans ; Gadolinium ; Follow-Up Studies ; Retrospective Studies ; Magnetic Resonance Imaging/methods ; Observer Variation ; Contrast Media ; Pituitary Neoplasms/diagnostic imaging ; Pituitary Neoplasms/surgery
Chemical Substances	Gadolinium (AU0V1LM3JT) ; Contrast Media
Language	English
Publishing date	2022-08-30
Publishing country	France
Document type	Journal Article
ZDB-ID	131763-5
ISSN	1773-0406 ; 0150-9861
ISSN (online)	1773-0406
ISSN	0150-9861
DOI	10.1016/j.neurad.2022.08.003
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Cologne/Königswinter

Zs.A 1062: Show issues

Location:
Je nach Verfügbarkeit (siehe Angabe bei Bestand)
bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
Jg. 1995 - 2021: Lesesall (1.OG)
ab Jg. 2022: Lesesaal (EG)

Order via subito

This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

Details ▾
- See ZB MED holdings
- Order with fees

Article ; Online: Potential of acetic acid to restore methane production in anaerobic reactors critically intoxicated by ammonia as evidenced by metabolic and microbial monitoring.

Lemaigre, Sébastien / Gerin, Patrick A / Adam, Gilles / Klimek, Dominika / Goux, Xavier / Herold, Malte / Frkova, Zuzana / Calusinska, Magdalena / Delfosse, Philippe

Biotechnology for biofuels and bioproducts

2023 Volume 16, Issue 1, Page(s) 188

Abstract: Background: Biogas and biomethane production from the on-farm anaerobic digestion (AD) of animal manure and agri-food wastes could play a key role in transforming Europe's energy system by mitigating its dependence on fossil fuels and tackling the ... ...

Abstract	Background: Biogas and biomethane production from the on-farm anaerobic digestion (AD) of animal manure and agri-food wastes could play a key role in transforming Europe's energy system by mitigating its dependence on fossil fuels and tackling the climate crisis. Although ammonia is essential for microbial growth, it inhibits the AD process if present in high concentrations, especially under its free form, thus leading to economic losses. In this study, which includes both metabolic and microbial monitoring, we tested a strategy to restore substrate conversion to methane in AD reactors facing critical free ammonia intoxication. Results: The AD process of three mesophilic semi-continuous 100L reactors critically intoxicated by free ammonia (> 3.5 g_N L Conclusions: Despite an extreme free ammonia intoxication, the proposed process recovery strategy allowed CH
Language	English
Publishing date	2023-12-02
Publishing country	England
Document type	Journal Article
ISSN	2731-3654
ISSN (online)	2731-3654
DOI	10.1186/s13068-023-02438-5
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Article: Microvascular ischemic isolated oculomotor nerve palsy revealed by contrast-enhanced 3D-CISS imaging.

Roques, Margaux / Biotti, Damien / Darcourt, Jean / Adam, Gilles / Varenne, Fanny / Bonneville, Fabrice

Journal of neuroradiology = Journal de neuroradiologie

2021 Volume 48, Issue 6, Page(s) 466–467

MeSH term(s)	Humans ; Magnetic Resonance Imaging ; Oculomotor Nerve Diseases/diagnostic imaging
Language	English
Publishing date	2021-01-17
Publishing country	France
Document type	Letter
ZDB-ID	131763-5
ISSN	1773-0406 ; 0150-9861
ISSN (online)	1773-0406
ISSN	0150-9861
DOI	10.1016/j.neurad.2021.01.001
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Cologne/Königswinter

Zs.A 1062: Show issues

Location:
Je nach Verfügbarkeit (siehe Angabe bei Bestand)
bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
Jg. 1995 - 2021: Lesesall (1.OG)
ab Jg. 2022: Lesesaal (EG)

Order via subito

Details ▾
- See ZB MED holdings
- Order with fees

Book: L'anguille européenne

Adam, Gilles

indicateurs d'abondance et de colonisation

(Savoir faire,)

2008

Author's details	Gilles Adam ... [et al.], coordinateurs
Series title	Savoir faire,
Keywords	Anguilla anguilla. ; Anguilla anguilla/Colonization.
Language	French
Size	v, 393 p. :, ill. (some col.), col. maps ;, 24 cm.
Publisher	Quae
Publishing place	Versailles
Document type	Book
ISBN	9782759200856 ; 275920085X
Database	NAL-Catalogue (AGRICOLA)

Order via subito

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Article ; Online: Reproducibility of volume analysis of dynamic susceptibility contrast perfusion-weighted imaging in untreated glioblastomas.

Roques, Margaux / Raveneau, Magali / Adam, Gilles / De Barros, Amaury / Catalaa, Isabelle / Patsoura, Sofia / Cognard, Christophe / Darcourt, Jean / Bonneville, Fabrice

Neuroradiology

2022 Volume 64, Issue 9, Page(s) 1763–1771

Abstract: Purpose: Despite a high variability, the hotspot method is widely used to calculate the cerebral blood volume (CBV) of glioblastomas on DSC-MRI. Our aim was to investigate inter- and intra-observer reproducibility of parameters calculated with the ... ...

Abstract	Purpose: Despite a high variability, the hotspot method is widely used to calculate the cerebral blood volume (CBV) of glioblastomas on DSC-MRI. Our aim was to investigate inter- and intra-observer reproducibility of parameters calculated with the hotspot or a volume method and that of an original parameter assessing the fraction of pixels in the tumour volume displaying rCBV > 2: %rCBV > 2. Methods: Twenty-seven consecutive patients with untreated glioblastoma (age: 63, women: 11) were retrospectively included. Three observers calculated the maximum tumour CBV value (rCBVmax) normalized with a reference ROI in the contralateral white matter (CBVWM) with (i) the hotspot method and (ii) with a volume method following tumour segmentation on 3D contrast-enhanced T1-WI. From this volume method, %rCBV > 2 was also assessed. After 8-12 weeks, one observer repeated all delineations. Intraclass (ICC) and Lin's (LCC) correlation coefficients were used to determine reproducibility. Results: Inter-observer reproducibility of rCBVmax was fair with the hotspot and good with the volume method (ICC = 0.46 vs 0.65, p > 0.05). For CBVWM, it was fair with the hotspot and excellent with the volume method (0.53 vs 0.84, p < 0.05). Reproducibility of one pairwise combination of observers was significantly better for both rCBVmax and CBVWM (LCC = 0.33 vs 0.75; 0.52 vs 0.89, p < 0.05). %rCBV > 2 showed excellent inter- and intra-observer reproducibility (ICC = 0.94 and 0.91). Conclusion: Calculated in glioblastomas with a volume method, rCBVmax and CBVWM yielded good to excellent reproducibility but only fair with the hotspot method. Overall, the volume analysis offers a highly reproducible parameter, %rCBV > 2, that could be promising during the follow-up of such heterogeneous tumours.
MeSH term(s)	Brain Neoplasms/pathology ; Contrast Media ; Female ; Glioblastoma/diagnostic imaging ; Humans ; Magnetic Resonance Imaging/methods ; Middle Aged ; Perfusion ; Reproducibility of Results ; Retrospective Studies
Chemical Substances	Contrast Media
Language	English
Publishing date	2022-04-02
Publishing country	Germany
Document type	Journal Article
ZDB-ID	123305-1
ISSN	1432-1920 ; 0028-3940
ISSN (online)	1432-1920
ISSN	0028-3940
DOI	10.1007/s00234-022-02937-6
Database	MEDical Literature Analysis and Retrieval System OnLINE

Full text online

Accessible to users with ZB MED library card

In stock of ZB MED Cologne/Königswinter

Zs.A 658: Show issues

Location:
Je nach Verfügbarkeit (siehe Angabe bei Bestand)
bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
Jg. 1995 - 2021: Lesesall (1.OG)
ab Jg. 2022: Lesesaal (EG)

Order via subito

Details ▾

Article ; Online: Diagnostic utility of T2*-weighted GRE in migraine with aura attack. The cortical veins sign.

Hirtz, Chloe / Adam, Gilles / Raposo, Nicolas / Fabre, Nelly / Ducros, Anne / Calviere, Lionel / Rousseau, Vanessa / Albucher, Jean François / Olivot, Jean-Marc / Bonneville, Fabrice / Viguier, Alain

Cephalalgia : an international journal of headache

2022 Volume 42, Issue 8, Page(s) 730–738

Abstract: Objective: To evaluate the frequency, distribution, and clinical associations of the dilated appearance of cerebral cortical veins, termed cortical veins sign on T2*-weighted gradient recalled-echo (T2*-GRE) in the acute setting of migraine with aura ... ...

Abstract	Objective: To evaluate the frequency, distribution, and clinical associations of the dilated appearance of cerebral cortical veins, termed cortical veins sign on T2-weighted gradient recalled-echo (T2-GRE) in the acute setting of migraine with aura attack in adult patients. Methods: We conducted a retrospective analysis of 60 consecutive patients admitted for acute neurological symptoms with a final diagnosis of migraine with aura (42%) or probable migraine with aura (58%) who underwent emergency brain magnetic resonance imaging and 60 non-migrainous control adults. The cortical veins sign was defined as a marked hypo-intensity and/or an apparent increased diameter of at least one cortical vein. We examined the prevalence, the spatial distribution, and the associations of cortical veins sign with clinical characteristics of migraine with aura. Results: We detected the cortical veins sign in 25 patients (42%) with migraine with aura, compared to none in the control group ( Conclusion: In the setting of acute neurological symptoms, the presence of cortical veins sign is frequent in patients with migraine with aura and can be detected with good reliability. This imaging marker may help clinicians identify underlying migraine with aura.
MeSH term(s)	Adult ; Epilepsy ; Humans ; Magnetic Resonance Imaging ; Migraine Disorders ; Migraine with Aura/diagnostic imaging ; Reproducibility of Results ; Retrospective Studies
Language	English
Publishing date	2022-03-18
Publishing country	England
Document type	Journal Article
ZDB-ID	604567-4
ISSN	1468-2982 ; 0333-1024
ISSN (online)	1468-2982
ISSN	0333-1024
DOI	10.1177/03331024221076484
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Cologne/Königswinter

Zs.A 1645: Show issues

Location:
Je nach Verfügbarkeit (siehe Angabe bei Bestand)
bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
Jg. 1995 - 2021: Lesesall (1.OG)
ab Jg. 2022: Lesesaal (EG)

Order via subito

Details ▾
- See ZB MED holdings
- Order with fees

Article ; Online: Absence of susceptibility vessel sign is associated with aspiration-resistant fibrin/platelet-rich thrombi.

Darcourt, Jean / Garcia, Cédric / Phuong, Do M / Michelozzi, Caterina / Bellanger, Guillaume / Adam, Gilles / Roques, Margaux / Januel, Anne C / Tall, Philippe / Albucher, Jean F / Olivot, Jean M / Bonneville, Fabrice / Payrastre, Bernard / Cognard, Christophe

International journal of stroke : official journal of the International Stroke Society

2021 Volume 16, Issue 8, Page(s) 972–980

Abstract: Background: The composition of the thrombus influences its retrievability by mechanical thrombectomy.: Purpose: Our study aimed to report on thrombi resistant to aspiration, regarding susceptibility vessel sign and histologic composition.: Methods!# ...

Abstract	Background: The composition of the thrombus influences its retrievability by mechanical thrombectomy. Purpose: Our study aimed to report on thrombi resistant to aspiration, regarding susceptibility vessel sign and histologic composition. Methods: This observational study was based on a prospective database of acute anterior circulation ischemic strokes treated by mechanical thrombectomy. Endovascular first-line strategy was aspiration and in case of failure, combined therapy-rescue was performed. The positivity of susceptibility vessel sign (SVS+) or its negativity (SVS-) was assessed on T2* sequences. The thrombus composition was analyzed with hematoxylin eosin staining. Results: Histological analysis was performed on 102 clots. Thrombi with SVS- were significantly richer in fibrin/platelets, p = 0.04. Out of 210 mechanical thrombectomy, aspiration first pass strategy was performed in 131/210 (62%) patients. Combined therapy-rescue was needed in 37% of aspiration first pass strategy cases ( Conclusions: Our results confirm that SVS- clots are rich in fibrin/platelets and suggest that these "white clots" are less likely to be retrieved by aspiration alone and more often require the use of combined therapy.
MeSH term(s)	Blood Platelets ; Fibrin ; Humans ; Stroke/therapy ; Thrombectomy ; Thrombosis/therapy ; Treatment Outcome
Chemical Substances	Fibrin (9001-31-4)
Language	English
Publishing date	2021-01-12
Publishing country	United States
Document type	Journal Article ; Observational Study
ZDB-ID	2303728-3
ISSN	1747-4949 ; 1747-4930
ISSN (online)	1747-4949
ISSN	1747-4930
DOI	10.1177/1747493020986626
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Cologne/Königswinter

Zs.A 6582: Show issues

Location:
Je nach Verfügbarkeit (siehe Angabe bei Bestand)
bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular
ab Jg. 2022: Lesesaal (EG)

Order via subito

Details ▾
- See ZB MED holdings
- Order with fees

Article: Magnetic resonance imaging of arterial stroke mimics: a pictorial review.

Adam, Gilles / Ferrier, Marine / Patsoura, Sofia / Gramada, Raluca / Meluchova, Zuzana / Cazzola, Vanessa / Darcourt, Jean / Cognard, Christophe / Viguier, Alain / Bonneville, Fabrice

Insights into imaging

2018 Volume 9, Issue 5, Page(s) 815–831

Abstract: Acute ischaemic stroke represents the most common cause of new sudden neurological deficit, but other diseases mimicking stroke happen in about one-third of the cases. Magnetic resonance imaging (MRI) is the best technique to identify those 'stroke ... ...

Abstract	Acute ischaemic stroke represents the most common cause of new sudden neurological deficit, but other diseases mimicking stroke happen in about one-third of the cases. Magnetic resonance imaging (MRI) is the best technique to identify those 'stroke mimics'. In this article, we propose a diagnostic approach of those stroke mimics on MRI according to an algorithm based on diffusion-weighted imaging (DWI), which can be abnormal or normal, followed by the results of other common additional MRI sequences, such as T2 with gradient recalled echo weighted imaging (T2-GRE) and fluid-attenuated inversion recovery (FLAIR). Analysis of the signal intensity of the parenchyma, the intracranial arteries and, overall, of the veins, is crucial on T2-GRE, while anatomic distribution of the parenchymal lesions is essential on FLAIR. Among stroke mimics with abnormal DWI, T2-GRE demonstrates obvious abnormalities in case of intracerebral haemorrhage or cerebral amyloid angiopathy, but this sequence also allows to propose alternative diagnoses when DWI is negative, such as in migraine aura or headaches with associated neurological deficits and lymphocytosis (HaNDL), in which cortical venous prominence is observed at the acute phase on T2-GRE. FLAIR is also of major interest when DWI is positive by better showing evocative distribution of cerebral lesions in case of seizure (involving the hippocampus, pulvinar and cortex), hypoglycaemia (bilateral lesions in the posterior limb of the internal capsules, corona radiata, striata or splenium of the corpus callosum) or in posterior reversible encephalopathy syndrome (PRES). Other real stroke mimics such as mitochondrial myopathy, encephalopathy, lactic acidosis, stroke-like episodes (MELAS), Susac's syndrome, brain tumour, demyelinating diseases and herpes simplex encephalitis are also included in our detailed and practical algorithm. KEY POINTS: • About 30% of sudden neurological deficits are due to non-ischaemic causes. • MRI is the best technique to identify stroke mimics. • Our practical illustrated algorithm based on DWI helps to recognise stroke mimics.
Language	English
Publishing date	2018-06-22
Publishing country	Germany
Document type	Journal Article ; Review
ZDB-ID	2543323-4
ISSN	1869-4101
ISSN	1869-4101
DOI	10.1007/s13244-018-0637-y
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Article: Upscaling of an electronic nose for completely stirred tank reactor stability monitoring from pilot-scale to real-scale agricultural co-digestion biogas plant

Bioresource technology. 2015 Feb., v. 178

2015

Abstract: This study investigated the use of an electronic nose for on-line anaerobic reactor state monitoring at the pilot-scale level and then upscaling to the full-scale level. E-nose indicator was compared to classical state indicators such as pH, alkalinity, ... ...

Abstract	This study investigated the use of an electronic nose for on-line anaerobic reactor state monitoring at the pilot-scale level and then upscaling to the full-scale level. E-nose indicator was compared to classical state indicators such as pH, alkalinity, volatile fatty acids concentration and to other gas phase compounds. Multivariate statistical process control method, based on principal component analysis and the Hotellingâs T2 statistics was used to derive an indicator representative of the reactor state. At the pilot-scale level, the e-nose indicator was relevant and could distinguish 3 process states: steady-state, transient and collapsing process. At the full-scale level, the e-nose indicator could provide the warning of the major disturbance whereas two slight disturbances were not detected and it gave one major false alarm. This work showed that gas phase relation with anaerobic process should be deeper investigated, as an e-nose could indicate the reactor state, focusing on the gas phase.
Keywords	alkalinity ; anaerobic digestion ; biogas ; control methods ; electronic nose ; fatty acid composition ; gases ; monitoring ; pH ; principal component analysis ; process control ; volatile fatty acids
Language	English
Dates of publication	2015-02
Size	p. 285-296.
Publishing place	Elsevier Ltd
Document type	Article
ZDB-ID	1065195-0
ISSN	1873-2976 ; 0960-8524
ISSN (online)	1873-2976
ISSN	0960-8524
DOI	10.1016/j.biortech.2014.09.106
Database	NAL-Catalogue (AGRICOLA)

In stock of ZB MED Bonn / Germany

Z 3258: Show issues

Order via subito

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Details ▾
- See ZB MED holdings
- Order with fees

Article ; Online: Upscaling of an electronic nose for completely stirred tank reactor stability monitoring from pilot-scale to real-scale agricultural co-digestion biogas plant.

Adam, Gilles / Lemaigre, Sébastien / Goux, Xavier / Delfosse, Philippe / Romain, Anne-Claude

Bioresource technology

2015 Volume 178, Page(s) 285–296

Abstract	This study investigated the use of an electronic nose for on-line anaerobic reactor state monitoring at the pilot-scale level and then upscaling to the full-scale level. E-nose indicator was compared to classical state indicators such as pH, alkalinity, volatile fatty acids concentration and to other gas phase compounds. Multivariate statistical process control method, based on principal component analysis and the Hotelling's T(2) statistics was used to derive an indicator representative of the reactor state. At the pilot-scale level, the e-nose indicator was relevant and could distinguish 3 process states: steady-state, transient and collapsing process. At the full-scale level, the e-nose indicator could provide the warning of the major disturbance whereas two slight disturbances were not detected and it gave one major false alarm. This work showed that gas phase relation with anaerobic process should be deeper investigated, as an e-nose could indicate the reactor state, focusing on the gas phase.
MeSH term(s)	Agriculture ; Biofuels/analysis ; Bioreactors ; Biotechnology/instrumentation ; Biotechnology/methods ; Electronic Nose ; Hydrogen-Ion Concentration ; Organic Chemicals/analysis ; Pilot Projects ; Principal Component Analysis
Chemical Substances	Biofuels ; Organic Chemicals
Language	English
Publishing date	2015-02
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	1065195-0
ISSN	1873-2976 ; 0960-8524
ISSN (online)	1873-2976
ISSN	0960-8524
DOI	10.1016/j.biortech.2014.09.106
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Bonn / Germany

Z 3258: Show issues

Order via subito

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Details ▾
- See ZB MED holdings
- Order with fees

To top

More links

Kategorien

In stock of ZB MED Cologne/Königswinter

Order via subito

More links

Kategorien

Order via subito

Inter-library loan at ZB MED

More links

Kategorien

In stock of ZB MED Cologne/Königswinter

Order via subito

More links

Kategorien

Order via subito

Inter-library loan at ZB MED

Full text online

More links

Kategorien

In stock of ZB MED Cologne/Königswinter

Order via subito

More links

Kategorien

In stock of ZB MED Cologne/Königswinter

Order via subito

More links

Kategorien

In stock of ZB MED Cologne/Königswinter

Order via subito

More links

Kategorien

Order via subito

More links

Kategorien

In stock of ZB MED Bonn / Germany

Order via subito

Inter-library loan at ZB MED

More links

Kategorien

In stock of ZB MED Bonn / Germany

Order via subito

Inter-library loan at ZB MED