Abdominal aortic aneurysm imaging with 3-D ultrasound: 3-D-based maximum diameter measurement and volume quantification.
Ultrasound Med Biol
; 39(8): 1325-36, 2013 Aug.
Article
em En
| MEDLINE
| ID: mdl-23743100
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.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Algoritmos
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Reconhecimento Automatizado de Padrão
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Interpretação de Imagem Assistida por Computador
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Ultrassonografia
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Aneurisma da Aorta Abdominal
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Imageamento Tridimensional
Tipo de estudo:
Diagnostic_studies
Limite:
Aged
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Female
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Humans
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Male
Idioma:
En
Revista:
Ultrasound Med Biol
Ano de publicação:
2013
Tipo de documento:
Article