Three-dimensional ultrasound evaluation of small asymptomatic abdominal aortic aneurysms
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Three-dimensional ultrasound evaluation of small asymptomatic abdominal aortic aneurysms. / Bredahl, K; Sandholt, B; Lönn, L; Rouet, L; Ardon, R; Eiberg, J P; Sillesen, H.
I: European Journal of Vascular and Endovascular Surgery, Bind 49, Nr. 3, 03.2015, s. 289-96.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Three-dimensional ultrasound evaluation of small asymptomatic abdominal aortic aneurysms
AU - Bredahl, K
AU - Sandholt, B
AU - Lönn, L
AU - Rouet, L
AU - Ardon, R
AU - Eiberg, J P
AU - Sillesen, H
N1 - Copyright © 2015 European Society for Vascular Surgery. Published by Elsevier Ltd. All rights reserved.
PY - 2015/3
Y1 - 2015/3
N2 - OBJECTIVE: Non-invasive and reproducible size measurements that correlate well with computed tomography (CT) are desirable in the management of small abdominal aortic aneurysms (AAA). Three dimensional ultrasound (3D-US) technology may reduce inaccuracy because of variations in orientation of the image planes and axis. This study aimed to determine any differences in paired size estimation associated with three 3D-US derived methods using 3D-CT as the gold standard. When CTA was not available, the patients were enrolled anyway to assess 3D-US reproducibility in terms of agreement between two physicians.METHODS: In the period from 1 March 2013 to 27 February 2014, consecutive patients with a small AAA, <5.5 cm for men and <5.2 cm for women, underwent 3D-US examination and three AAA size measures were obtained: dual plane diameter, diameter perpendicular to the residual sac's centreline and a partial volume.RESULT: In all, 122 consecutive US examinations were performed. Patients were excluded because of inadequate AAA size (n = 11) and for technical reasons (n = 11). Thus, 100 patients (F/M; 20/80) with a median maximum AAA diameter of 46 (range 31-55) mm were analysed. The mean US dual plane diameter and the 3D-US centreline diameter were 2.6 mm and 1.8 mm smaller than the mean 3D-CT centreline diameter, respectively (p = .003). The inter-observer reproducibility coefficient was 3.7 mm for the US dual plane diameter and 3.2 mm for the 3D-US centreline diameter (p = 0.222). For the partial volume, the reproducibility was 8-12%, corresponding to a diameter variability of ±3 mm. The median time used for post-processing of the 3D-US acquisition was 72 (range 46-108) seconds per examination.CONCLUSION: 3D-US demonstrated an acceptable reproducibility and a good agreement with 3D-CT, and has the potential to improve future AAA management through more reliable ultrasound guided size estimates.
AB - OBJECTIVE: Non-invasive and reproducible size measurements that correlate well with computed tomography (CT) are desirable in the management of small abdominal aortic aneurysms (AAA). Three dimensional ultrasound (3D-US) technology may reduce inaccuracy because of variations in orientation of the image planes and axis. This study aimed to determine any differences in paired size estimation associated with three 3D-US derived methods using 3D-CT as the gold standard. When CTA was not available, the patients were enrolled anyway to assess 3D-US reproducibility in terms of agreement between two physicians.METHODS: In the period from 1 March 2013 to 27 February 2014, consecutive patients with a small AAA, <5.5 cm for men and <5.2 cm for women, underwent 3D-US examination and three AAA size measures were obtained: dual plane diameter, diameter perpendicular to the residual sac's centreline and a partial volume.RESULT: In all, 122 consecutive US examinations were performed. Patients were excluded because of inadequate AAA size (n = 11) and for technical reasons (n = 11). Thus, 100 patients (F/M; 20/80) with a median maximum AAA diameter of 46 (range 31-55) mm were analysed. The mean US dual plane diameter and the 3D-US centreline diameter were 2.6 mm and 1.8 mm smaller than the mean 3D-CT centreline diameter, respectively (p = .003). The inter-observer reproducibility coefficient was 3.7 mm for the US dual plane diameter and 3.2 mm for the 3D-US centreline diameter (p = 0.222). For the partial volume, the reproducibility was 8-12%, corresponding to a diameter variability of ±3 mm. The median time used for post-processing of the 3D-US acquisition was 72 (range 46-108) seconds per examination.CONCLUSION: 3D-US demonstrated an acceptable reproducibility and a good agreement with 3D-CT, and has the potential to improve future AAA management through more reliable ultrasound guided size estimates.
KW - Aorta, Abdominal
KW - Aortic Aneurysm, Abdominal
KW - Aortography
KW - Asymptomatic Diseases
KW - Denmark
KW - Female
KW - Humans
KW - Image Interpretation, Computer-Assisted
KW - Imaging, Three-Dimensional
KW - Male
KW - Observer Variation
KW - Predictive Value of Tests
KW - Prognosis
KW - Prospective Studies
KW - Reproducibility of Results
KW - Tomography, X-Ray Computed
U2 - 10.1016/j.ejvs.2014.12.022
DO - 10.1016/j.ejvs.2014.12.022
M3 - Journal article
C2 - 25662155
VL - 49
SP - 289
EP - 296
JO - European Journal of Vascular and Endovascular Surgery
JF - European Journal of Vascular and Endovascular Surgery
SN - 1078-5884
IS - 3
ER -
ID: 162873025