dc.contributor.author | Kauffmann, Claude | |
dc.contributor.author | Tang, An | |
dc.contributor.author | Dugas, Alexandre | |
dc.contributor.author | Therasse, Éric | |
dc.contributor.author | Oliva, Vincent L. | |
dc.contributor.author | Soulez, Gilles | |
dc.date.accessioned | 2023-10-16T18:18:04Z | |
dc.date.available | NO_RESTRICTION | fr |
dc.date.available | 2023-10-16T18:18:04Z | |
dc.date.issued | 2009-12-03 | |
dc.identifier.uri | http://hdl.handle.net/1866/31914 | |
dc.publisher | Elsevier | fr |
dc.rights | Attribution - Pas d’Utilisation Commerciale - Pas de Modification 4.0 International | |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/deed.fr | |
dc.subject | Abdominal aortic aneurysm | fr |
dc.subject | Quantitative analysis | fr |
dc.subject | D-max follow-up | fr |
dc.subject | 3D segmentation | fr |
dc.subject | CTA | fr |
dc.title | Clinical validation of a software for quantitative follow-up of abdominal aortic aneurysm maximal diameter and growth by CT angiography | fr |
dc.type | Article | fr |
dc.contributor.affiliation | Université de Montréal. Faculté de médecine. Département de radiologie, radio-oncologie et médecine nucléaire | fr |
dc.identifier.doi | 10.1016/j.ejrad.2009.07.027 | |
dcterms.abstract | Purpose
To compare the reproducibility and accuracy of abdominal aortic aneurysm (AAA) maximal diameter (D-max) measurements using segmentation software, with manual measurement on double-oblique MPR as a reference standard.
Materials and methods
The local Ethics Committee approved this study and waived informed consent. Forty patients (33 men, 7 women; mean age, 72 years, range, 49–86 years) had previously undergone two CT angiography (CTA) studies within 16 ± 8 months for follow-up of AAA ≥35 mm without previous treatment. The 80 studies were segmented twice using the software to calculate reproducibility of automatic D-max calculation on 3D models. Three radiologists reviewed the 80 studies and manually measured D-max on double-oblique MPR projections. Intra-observer and inter-observer reproducibility were calculated by intraclass correlation coefficient (ICC). Systematic errors were evaluated by linear regression and Bland–Altman analyses. Differences in D-max growth were analyzed with a paired Student's t-test.
Results
The ICC for intra-observer reproducibility of D-max measurement was 0.992 (≥0.987) for the software and 0.985 (≥0.974) and 0.969 (≥0.948) for two radiologists. Inter-observer reproducibility was 0.979 (0.954–0.984) for the three radiologists. Mean absolute difference between semi-automated and manual D-max measurements was estimated at 1.1 ± 0.9 mm and never exceeded 5 mm.
Conclusion
Semi-automated software measurement of AAA D-max is reproducible, accurate, and requires minimal operator intervention. | fr |
dcterms.isPartOf | urn:ISSN:0720-048X | fr |
dcterms.language | eng | fr |
UdeM.ReferenceFournieParDeposant | "Kauffmann, C., Tang, A., Dugas, A., Therasse, É., Oliva, V., & Soulez, G. (2011). Clinical validation of a software for quantitative follow-up of abdominal aortic aneurysm maximal diameter and growth by CT angiography. European journal of radiology, 77(3), 502–508. https://doi.org/10.1016/j.ejrad.2009.07.027
" | fr |
UdeM.VersionRioxx | Version acceptée / Accepted Manuscript | fr |
oaire.citationTitle | European journal of radiology | fr |
oaire.citationVolume | 77 | fr |
oaire.citationIssue | 9 | fr |
oaire.citationStartPage | 502 | fr |
oaire.citationEndPage | 508 | fr |