Non-contrast CT markers of intracerebral hematoma expansion : a reliability study
dc.contributor.author | Nehme, Ahmad | |
dc.contributor.author | Ducroux, Célina | |
dc.contributor.author | Panzini, Marie-Andrée | |
dc.contributor.author | Bard, Céline | |
dc.contributor.author | Bereznyakova, Olena | |
dc.contributor.author | Boisseau, William | |
dc.contributor.author | Deschaintre, Yan | |
dc.contributor.author | Bengzon Diestro, Jose Danilo | |
dc.contributor.author | Guilbert, François | |
dc.contributor.author | Jacquin, Grégory | |
dc.contributor.author | Taoubane Maallah, Mohamed | |
dc.contributor.author | Nelson, Kristoff | |
dc.contributor.author | Gomes Padilha, Igor | |
dc.contributor.author | Poppe, Alexandre Y. | |
dc.contributor.author | Rioux, Bastien | |
dc.contributor.author | Roy, Daniel | |
dc.contributor.author | Touma, Lahoud | |
dc.contributor.author | Weill, Alain | |
dc.contributor.author | Gioia, Laura C. | |
dc.contributor.author | Létourneau-Guillon, Laurent | |
dc.date.accessioned | 2023-10-16T11:58:41Z | |
dc.date.available | NO_RESTRICTION | fr |
dc.date.available | 2023-10-16T11:58:41Z | |
dc.date.issued | 2022-03-29 | |
dc.identifier.uri | http://hdl.handle.net/1866/31906 | |
dc.publisher | Springer | fr |
dc.subject | Cerebral hemorrhage | fr |
dc.subject | Humans | fr |
dc.subject | Observer variation | fr |
dc.subject | Tomography, X-Ray computed | fr |
dc.title | Non-contrast CT markers of intracerebral hematoma expansion : a reliability study | fr |
dc.type | Article | fr |
dc.contributor.affiliation | Université de Montréal. Faculté de médecine. Département de neurosciences | fr |
dc.identifier.doi | 10.1007/s00330-022-08710-w | |
dcterms.abstract | Objectives: We evaluated whether clinicians agree in the detection of non-contrast CT markers of intracerebral hemorrhage (ICH) expansion. Methods: From our local dataset, we randomly sampled 60 patients diagnosed with spontaneous ICH. Fifteen physicians and trainees (Stroke Neurology, Interventional and Diagnostic Neuroradiology) were trained to identify six density (Barras density, black hole, blend, hypodensity, fluid level, swirl) and three shape (Barras shape, island, satellite) expansion markers, using standardized definitions. Thirteen raters performed a second assessment. Inter and intra-rater agreement were measured using Gwet’s AC1, with a coefficient > 0.60 indicating substantial to almost perfect agreement. Results: Almost perfect inter-rater agreement was observed for the swirl (0.85, 95% CI: 0.78-0.90) and fluid level (0.84, 95% CI: 0.76-0.90) markers, while the hypodensity (0.67, 95% CI: 0.56-0.76) and blend (0.62, 95% CI: 0.51-0.71) markers showed substantial agreement. Inter-rater agreement was otherwise moderate, and comparable between density and shape markers. Inter-rater agreement was lower for the three markers that require the rater to identify one specific axial slice (Barras density, Barras shape, island: 0.46, 95% CI: 0.40-0.52 versus others: 0.60, 95% CI: 0.56-0.63). Inter-observer agreement did not differ when stratified for raters’ experience, hematoma location, volume or anticoagulation status. Intrarater agreement was substantial to almost perfect for all but the black hole marker. Conclusion: In a large sample of raters with different backgrounds and expertise levels, only four of nine non-contrast CT markers of ICH expansion showed substantial to almost perfect inter-rater agreement. | fr |
dcterms.isPartOf | urn:ISSN:0938-7994 | fr |
dcterms.isPartOf | urn:ISSN:1432-1084 | fr |
dcterms.language | eng | fr |
UdeM.ReferenceFournieParDeposant | 10.1007/s00330-022-08710-w | fr |
UdeM.VersionRioxx | Version acceptée / Accepted Manuscript | fr |
oaire.citationTitle | European radiology | fr |
oaire.citationVolume | 32 | fr |
oaire.citationIssue | 9 | fr |
oaire.citationStartPage | 6126 | fr |
oaire.citationEndPage | 6135 | fr |
Fichier·s constituant ce document
Ce document figure dans la ou les collections suivantes
Ce document diffusé sur Papyrus est la propriété exclusive des titulaires des droits d'auteur et est protégé par la Loi sur le droit d'auteur (L.R.C. (1985), ch. C-42). Il peut être utilisé dans le cadre d'une utilisation équitable et non commerciale, à des fins d'étude privée ou de recherche, de critique ou de compte-rendu comme le prévoit la Loi. Pour toute autre utilisation, une autorisation écrite des titulaires des droits d'auteur sera nécessaire.