Inici
→
Recerca: articles, congressos, llibres
→
Visualitza Recerca: articles, congressos, llibres per matèria

Visualitza Recerca: articles, congressos, llibres per matèria "Quantification"

Ara mostrant els elements 1-10 de 10

A multisite analysis of the concordance between visual image interpretation and quantitative analysis of [18F]flutemetamol amyloid PET images

Bucci, Marco; Savitcheva, Irina; Farrar, Gill; Salvadó, Gemma; Collij, Lyduine E.; Doré, Vincent; Gispert López, Juan Domingo; Gunn, Roger; Hanseeuw, Bernard; Hansson, Oskar; Shekari, Mahnaz; Lhommel, Renaud; Molinuevo, José Luis; Rowe, Christopher; Sur, Cyrille; Whittington, Alex; Buckley, Christopher, 1948-; Nordberg, Agneta (Springer, 2021)

Background: [18F]flutemetamol PET scanning provides information on brain amyloid load and has been approved for routine clinical use based upon visual interpretation as either negative (equating to none or sparse amyloid ...
Distributional modification: the case of frequency adjectives

Gehrke, Berit; McNally, Louise, 1965- (Linguistic Society of America, 2015)
Impact of cerebral blood flow and amyloid load on SUVR bias

Heeman, Fiona; Yaqub, Maqsood; Hendriks, Janine; van Berckel, Bart N. M.; Collij, Lyduine E.; Gray, Katherine R.; Manber, Richard; Wolz, Robin; Garibotto, Valentina; Wimberley, Catriona; Ritchie, Craig; Barkhof, Frederik; Gispert López, Juan Domingo; Vállez García, David; Lopes Alves, Isadora; Lammertsma, Adriaan A.; AMYPAD Consortium (SpringerOpen, 2022)

Background: despite its widespread use, the semi-quantitative standardized uptake value ratio (SUVR) may be biased compared with the distribution volume ratio (DVR). This bias may be partially explained by changes in ...
“Look, some green circles!”: learning to quantify from images

Boleda, Gemma; Sorodoc, Ionut-Teodor; Lazaridou, Angeliki; Herbelot, Aurélie; Pezzelle, Sandro; Bernardi, Raffaella (ACL (Association for Computational Linguistics), 2016)

In this paper, we investigate whether a neural network model can learn the meaning of natural language quantifiers (no,some and all) from their use in visual contexts. We show that memory networks perform well in this ...
Optimized dual-time-window protocols for quantitative [18F]flutemetamol and [18F]florbetaben PET studies

Heeman, Fiona; Yaqub, Maqsood; Lopes Alves, Isadora; Heurling, Kerstin; Berkhof, Johannes; Gispert López, Juan Domingo; Bullich, Santiago; Foley, Christopher; Lammertsma, Adriaan A.; AMYPAD Consortium (Springer, 2019)

Background: A long dynamic scanning protocol may be required to accurately measure longitudinal changes in amyloid load. However, such a protocol results in a lower patient comfort and scanning efficiency compared to static ...
Quantification of amyloid PET for future clinical use: a state-of-the-art review

Pemberton, Hugh G.; Collij, Lyduine E.; Heeman, Fiona; Bollack, Ariane; Shekari, Mahnaz; Salvadó, Gemma; Lopes Alves, Isadora; Vallez Garcia, David; Battle, Mark; Buckley, Christopher, 1948-; Stephens, Andrew W.; Bullich, Santiago; Garibotto, Valentina; Barkhof, Frederik; Gispert López, Juan Domingo; Farrar, Gill; AMYPAD Consortium (Springer, 2022)

Amyloid-β (Aβ) pathology is one of the earliest detectable brain changes in Alzheimer's disease (AD) pathogenesis. The overall load and spatial distribution of brain Aβ can be determined in vivo using positron emission ...
Quantificational strategies across language modalities

Quer, Josep, 1965- (Springer, 2011)

The study of quantification traditionally focused on structures where quantificational meanings are encoded in determiners. Only as a later development attention was paid to quantificational strategies that rely on adverbs, ...
Quantifying the immeasurable: a reflection on sport, time and media

López González, Hibai, 1983- (Taylor & Francis (Routledge), 2014)

In the last century, professional sport has experienced a process of standardization that has favoured the development of its two most recent characteristics: the quantification and the pursuit of records, as Guttmann ...
Quantitative plasma profiling by 1H NMR-based metabolomics: impact of sample treatment

Madrid-Gambin, Francisco; Oller, Sergio; Marco Sola, Santiago; Pozo Mendoza, Óscar J., 1975-; Andrés Lacueva, Cristina; Llorach, Rafael (Frontiers, 2023)

Introduction: There is evidence that sample treatment of blood-based biosamples may affect integral signals in nuclear magnetic resonance-based metabolomics. The presence of macromolecules in plasma/serum samples makes ...
Simulating the effect of cerebral blood flow changes on regional quantification of [18F]flutemetamol and [18F]florbetaben studies

Heeman, Fiona; Yaqub, Maqsood; Lopes Alves, Isadora; Heurling, Kerstin; Bullich, Santiago; Gispert López, Juan Domingo; Boellaard, Ronald; Lammertsma, Adriaan A.; AMYPAD Consortium (SAGE Publications, 2021)

Global and regional changes in cerebral blood flow (CBF) can result in biased quantitative estimates of amyloid load by PET imaging. Therefore, the current simulation study assessed effects of these changes on amyloid ...