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Multidimensional growth measurements of abdominal aortic aneurysms
Giampaolo Martufi, PhD, Martin Auer, PhD, Joy Roy, MD, PhD, Jesper Swedenborg, MD, PhD, Natzi Sakalihasan, MD, PhD, Giuseppe Panuccio, MD, T. Christian Gasser, PhD Journal of Vascular Surgery Volume 58, Issue 3, Pages (September 2013) DOI: /j.jvs Copyright © 2013 Society for Vascular Surgery Terms and Conditions
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Fig 1 Abdominal aortic aneurysm (AAA) geometry acquisition. A, Three-dimensional anatomy is reconstructed from computed tomography angiography scans using a deformable segmentation model. B, Simplified geometry representation uses splines perpendicular to the aneurysm's centerline. Journal of Vascular Surgery , DOI: ( /j.jvs ) Copyright © 2013 Society for Vascular Surgery Terms and Conditions
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Fig 2 Definition of the geometric properties of an abdominal aortic aneurysm (AAA). A, Centerline-based outer aortic diameters. Dmax, maximum diameter; D1, aortic diameter at the lowest renal artery. B, Centerline length segments. N, neck length; S, aneurysm sac length. C, Angulation α. Journal of Vascular Surgery , DOI: ( /j.jvs ) Copyright © 2013 Society for Vascular Surgery Terms and Conditions
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Fig 3 Box and whisker plots show multiple centerline-based aneurysm expansions and global-based aneurysm expansions. gMAX, maximum diameter growth; gMEAN, mean diameter growth, which is averaged between the renal arteries and the aortic bifurcation; gD, global maximum diameter-based expansion rate; gS, global longitudinal aneurysm expansion; gV, global volume-based aneurysm expansion. The horizontal line in the middle of each box indicates the median, the top and bottom borders of the box mark the 75th and 25th percentiles, respectively, the top whiskers mark the 75th percentile +1.5 interquartile range (IQR), while the bottom whiskers mark the 25th percentile −1.5 IQR, and the + symbols denote outliers. Journal of Vascular Surgery , DOI: ( /j.jvs ) Copyright © 2013 Society for Vascular Surgery Terms and Conditions
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Fig 4 Locations of maximum diameter growth (gMAX) and maximum baseline diameter (Dmaxbaseline) as a function of the relative centerline position. 0 corresponds with the renal arteries location and 1 with the aortic bifurcation position. Journal of Vascular Surgery , DOI: ( /j.jvs ) Copyright © 2013 Society for Vascular Surgery Terms and Conditions
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Fig 5 Association of maximum (gMAX) and mean (gMEAN) diameter growth with global maximum diameter-based expansion rate (gD) and global volume-based aneurysm expansion (gV) with Pearson correlation. Journal of Vascular Surgery , DOI: ( /j.jvs ) Copyright © 2013 Society for Vascular Surgery Terms and Conditions
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Fig 6 Box and whisker plots of aortic aneurysm neck morphology change during the follow-up period. The horizontal line in the middle of each box indicates the median, the top and bottom borders of the box mark the 75th and 25th percentiles, respectively, the top whiskers mark the 75th percentile +1.5 interquartile range (IQR), while the bottom whiskers mark the 25th percentile −1.5 IQR, and the + symbols denote outliers. Journal of Vascular Surgery , DOI: ( /j.jvs ) Copyright © 2013 Society for Vascular Surgery Terms and Conditions
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