Wall stress analysis of abdominal aortic aneurysms using 3D ultrasound

A. M. Kok, V.L. Nguyen, L. Speelman, G.W.H. Schurink, F.N. van de Vosse, R.G.P. Lopata

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

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Wall stress analysis of abdominal aortic aneurysms is a novel tool that has proven high potential to improve risk stratification of abdominal aortic aneurysms (AAAs). Wall stress analysis is based on computed tomography (CT) and magnetic resonance imaging, however, 3D ultrasound (US) has not been used yet. In this study, the feasibility of 3D US based wall stress analysis is investigated and compared to CT. Three-dimensional US and CT data were acquired in 15 patients (diameter 35 - 90 mm). US data were segmented manually and compared to automatically acquired CT geometries by calculating the similarity index (SI) and Hausdorff distance (HD). Wall stresses were simulated at p = 140 mmHg using a non-linear material model (Raghavan & Vorp). The SI of US vs CT was 0.75 - 0.91, with a median HD of 5 - 15 mm, with the higher values found at the proximal and distal sides of the AAA. Wall stresses were in accordance with literature and a good agreement was found between US and CTbased median stresses and inter-quartile stresses. Stress values of US were typically higher, the result of geometrical irregularities, caused by the manual segmentation of the US data. In future work, an automated segmentation approach is the essential point of improvement.

Originele taal-2Engels
TitelIEEE International Ultrasonics Symposium, IUS
UitgeverijIEEE Computer Society
Pagina's2300-2303
Aantal pagina's4
ISBN van geprinte versie9781479970490
DOI's
StatusGepubliceerd - 20 okt 2014
Evenement2014 IEEE International Ultrasonics Symposium (IUS 2014) - Hilton Hotel, Chicago, Verenigde Staten van Amerika
Duur: 3 sep 20146 sep 2014
http://ewh.ieee.org/conf/ius_2014/

Congres

Congres2014 IEEE International Ultrasonics Symposium (IUS 2014)
Verkorte titelIUS 2014
LandVerenigde Staten van Amerika
StadChicago
Periode3/09/146/09/14
AnderInternational Ultrasonics Symposium
Internet adres

Vingerafdruk

stress analysis
tomography
quartiles
stratification
irregularities
magnetic resonance
geometry

Citeer dit

Kok, A. M., Nguyen, V. L., Speelman, L., Schurink, G. W. H., van de Vosse, F. N., & Lopata, R. G. P. (2014). Wall stress analysis of abdominal aortic aneurysms using 3D ultrasound. In IEEE International Ultrasonics Symposium, IUS (blz. 2300-2303). [6932026] IEEE Computer Society. https://doi.org/10.1109/ULTSYM.2014.0573
Kok, A. M. ; Nguyen, V.L. ; Speelman, L. ; Schurink, G.W.H. ; van de Vosse, F.N. ; Lopata, R.G.P. / Wall stress analysis of abdominal aortic aneurysms using 3D ultrasound. IEEE International Ultrasonics Symposium, IUS. IEEE Computer Society, 2014. blz. 2300-2303
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abstract = "Wall stress analysis of abdominal aortic aneurysms is a novel tool that has proven high potential to improve risk stratification of abdominal aortic aneurysms (AAAs). Wall stress analysis is based on computed tomography (CT) and magnetic resonance imaging, however, 3D ultrasound (US) has not been used yet. In this study, the feasibility of 3D US based wall stress analysis is investigated and compared to CT. Three-dimensional US and CT data were acquired in 15 patients (diameter 35 - 90 mm). US data were segmented manually and compared to automatically acquired CT geometries by calculating the similarity index (SI) and Hausdorff distance (HD). Wall stresses were simulated at p = 140 mmHg using a non-linear material model (Raghavan & Vorp). The SI of US vs CT was 0.75 - 0.91, with a median HD of 5 - 15 mm, with the higher values found at the proximal and distal sides of the AAA. Wall stresses were in accordance with literature and a good agreement was found between US and CTbased median stresses and inter-quartile stresses. Stress values of US were typically higher, the result of geometrical irregularities, caused by the manual segmentation of the US data. In future work, an automated segmentation approach is the essential point of improvement.",
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Kok, AM, Nguyen, VL, Speelman, L, Schurink, GWH, van de Vosse, FN & Lopata, RGP 2014, Wall stress analysis of abdominal aortic aneurysms using 3D ultrasound. in IEEE International Ultrasonics Symposium, IUS., 6932026, IEEE Computer Society, blz. 2300-2303, 2014 IEEE International Ultrasonics Symposium (IUS 2014), Chicago, Verenigde Staten van Amerika, 3/09/14. https://doi.org/10.1109/ULTSYM.2014.0573

Wall stress analysis of abdominal aortic aneurysms using 3D ultrasound. / Kok, A. M.; Nguyen, V.L.; Speelman, L.; Schurink, G.W.H.; van de Vosse, F.N.; Lopata, R.G.P.

IEEE International Ultrasonics Symposium, IUS. IEEE Computer Society, 2014. blz. 2300-2303 6932026.

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

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AB - Wall stress analysis of abdominal aortic aneurysms is a novel tool that has proven high potential to improve risk stratification of abdominal aortic aneurysms (AAAs). Wall stress analysis is based on computed tomography (CT) and magnetic resonance imaging, however, 3D ultrasound (US) has not been used yet. In this study, the feasibility of 3D US based wall stress analysis is investigated and compared to CT. Three-dimensional US and CT data were acquired in 15 patients (diameter 35 - 90 mm). US data were segmented manually and compared to automatically acquired CT geometries by calculating the similarity index (SI) and Hausdorff distance (HD). Wall stresses were simulated at p = 140 mmHg using a non-linear material model (Raghavan & Vorp). The SI of US vs CT was 0.75 - 0.91, with a median HD of 5 - 15 mm, with the higher values found at the proximal and distal sides of the AAA. Wall stresses were in accordance with literature and a good agreement was found between US and CTbased median stresses and inter-quartile stresses. Stress values of US were typically higher, the result of geometrical irregularities, caused by the manual segmentation of the US data. In future work, an automated segmentation approach is the essential point of improvement.

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Kok AM, Nguyen VL, Speelman L, Schurink GWH, van de Vosse FN, Lopata RGP. Wall stress analysis of abdominal aortic aneurysms using 3D ultrasound. In IEEE International Ultrasonics Symposium, IUS. IEEE Computer Society. 2014. blz. 2300-2303. 6932026 https://doi.org/10.1109/ULTSYM.2014.0573