title: Abdominal aortic aneurysm imaging with 3-D ultrasound: 3-D-based maximum diameter measurement and volume quantification.
abstract: The clinical reliability of 3-D ultrasound imaging (3-DUS) in quantification of abdominal aortic aneurysm (AAA) was evaluated. B-mode and 3-DUS images of AAAs were acquired for 42 patients. AAAs were segmented. A 3-D-based maximum diameter (Max3-D) and partial volume (Vol30) were defined and quantified. Comparisons between 2-D (Max2-D) and 3-D diameters and between orthogonal acquisitions were performed. Intra- and inter-observer reproducibility was evaluated. Intra- and inter-observer coefficients of repeatability (CRs) were less than 5.18 mm for Max3-D. Intra-observer and inter-observer CRs were respectively less than 6.16 and 8.71 mL for Vol30. The mean of normalized errors of Vol30 was around 7%. Correlation between Max2-D and Max3-D was 0.988 (p < 0.0001). Max3-D and Vol30 were not influenced by a probe rotation of 90°. Use of 3-DUS to quantify AAA is a new approach in clinical practice. The present study proposed and evaluated dedicated parameters. Their reproducibility makes the technique clinically reliable.
authors.affiliation: Vascular Medicine, Centre Hospitalier Universitaire de Reims, Hôpital Robert Debré, Reims, France. along@chu-reims.fr
authors.forename: A
authors.initials: A
authors.lastname: Long
authors.forename: L
authors.initials: L
authors.lastname: Rouet
authors.forename: A
authors.initials: A
authors.lastname: Debreuve
authors.forename: R
authors.initials: R
authors.lastname: Ardon
authors.forename: C
authors.initials: C
authors.lastname: Barbe
authors.forename: J P
authors.initials: JP
authors.lastname: Becquemin
authors.forename: E
authors.initials: E
authors.lastname: Allaire
mesh_terms: D000368:Aged; D000465:Algorithms; D017544:Aortic Aneurysm, Abdominal / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D007089:Image Enhancement / Q000379:methods; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D021621:Imaging, Three-Dimensional / Q000379:methods*; D008297:Male; D010363:Pattern Recognition, Automated / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014463:Ultrasonography / Q000379:methods*
keywords: Abdominal; Aortic aneurysm; Imaging; Partial volume; Three-dimensional; Ultrasonography