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Reproducibility of Abdominal Aortic Aneurysm Diameter Measurement and Growth Evaluation on Axial and Multiplanar Computed Tomography Reformations

Purpose To compare different methods measuring abdominal aortic aneurysm (AAA) maximal diameter (Dmax) and its progression on multidetector computed tomography (MDCT) scan. Materials and Methods Forty AAA patients with two MDCT scans acquired at different times (baseline and follow-up) were included...

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Bibliographic Details
Published in:Cardiovascular and interventional radiology 2012-08, Vol.35 (4), p.779-787
Main Authors: Dugas, Alexandre, Therasse, Éric, Kauffmann, Claude, Tang, An, Elkouri, Stephane, Nozza, Anna, Giroux, Marie-France, Oliva, Vincent L., Soulez, Gilles
Format: Article
Language:English
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Summary:Purpose To compare different methods measuring abdominal aortic aneurysm (AAA) maximal diameter (Dmax) and its progression on multidetector computed tomography (MDCT) scan. Materials and Methods Forty AAA patients with two MDCT scans acquired at different times (baseline and follow-up) were included. Three observers measured AAA diameters by seven different methods: on axial images (anteroposterior, transverse, maximal, and short-axis views) and on multiplanar reformation (MPR) images (coronal, sagittal, and orthogonal views). Diameter measurement and progression were compared over time for the seven methods. Reproducibility of measurement methods was assessed by intraclass correlation coefficient (ICC) and Bland–Altman analysis. Results Dmax, as measured on axial slices at baseline and follow-up (FU) MDCTs, was greater than that measured using the orthogonal method ( p  = 0.046 for baseline and 0.028 for FU), whereas Dmax measured with the orthogonal method was greater those using all other measurement methods ( p -value range:
ISSN:0174-1551
1432-086X
DOI:10.1007/s00270-011-0259-y