A new approach for the pre-clinical optimization of a spatial configuration of bifurcated endovascular prosthesis placed in abdominal aortic aneurysms - Fig 3

<p>Schematic representation of the analyzed geometric parameters: a) tortuosity, b) bends in the stent-graft branches. <i>L</i>–length of the branch calculated in its axis, <i>L</i>_<i>e</i><i>−</i>distance between two parallel planes (inlet/outlet in the stent-graft branch), <i>bend</i>_{<i>out_L</i>}−bend in the left branch of the stent-graft, <i>bend</i>_{<i>out_R</i>}−bend in the right branch of the stent-graft.</p

The relation of tortuosity <i>T</i> measured in the stent-graft branches as a function of <i>Hct</i>.

<p>Stent-grafts in which thrombus did not occur are marked in red; stent-grafts with thrombus are marked in blue; green color denotes the area in which the fewest clotted stent-grafts were observed.</p

The relation of bends (<i>bend</i>_{<i>out_L</i>}<i>/bend</i>_{<i>out_R</i>}) in the stent-graft branches as a function of <i>Hct</i>.

<p>Stent-grafts in which thrombus did not occur are marked in red; stent-grafts with thrombus are marked in blue; green color denotes the area in which the fewest clotted stent-grafts were observed.</p

Schematic representation of the diameters analyzed in the stent-graft.

<p><i>D</i>_<i>L</i>−outlet diameter of the left branch of the stent-graft, <i>D</i>_<i>R</i>−outlet diameter of the right branch of the stent-graft, <i>D</i>_<i>in</i>−inlet diameter of the stent-graft, <i>D</i>_{<i>out_avg</i>}−arithmetic average of both outlet diameters in the iliac part of the stent-graft.</p

The relation of the volume of upper part of the stent-graft <i>(V</i>_<i>B</i><i>)</i> to the volume of branches in stent-graft <i>(V</i>_<i>L</i><i>)</i> presented as a function of <i>Hct</i>.

<p>Stent-grafts in which thrombus did not occur are marked in red; stent-grafts with thrombus are marked in blue; green color denotes the area in which the fewest clotted stent-grafts were observed.</p

The relation of bends measured in the stent-graft branches as a function of <i>Hct</i>.

<p>Stent-grafts in which thrombus did not occur are marked in red; stent-grafts with thrombus are marked in blue; green color denotes the area in which the fewest clotted stent-grafts were observed.</p

Schematic representation of volumes analyzed in the stent-graft.

<p><i>V</i>_<i>B</i>−volume of the upper part of the stent-graft marked in blue, <i>V</i>_<i>L</i>−volume of the iliac part of the stent-graft marked in green.</p

The shape factors and WSS values for the analyzed stent-grafts.

<p>The shape factors and WSS values for the analyzed stent-grafts.</p

The WSS values in a function of shape factor <i>φ</i> for analyzed stent-grafts.

<p>Correlation was calculated with Spearman non-parametric test.</p

A scheme of reference cylinder for each stent-graft calculation procedure.

<p>A scheme of reference cylinder for each stent-graft calculation procedure.</p