Evaluation of Electrocardiogram-Gated Computed Tomography Angiography to Quantify Changes in Geometry and Dynamic Behavior during the Cardiac Cycle of the Nellix Endovascular Sealing System
Table 3
Preoperative (PRE) versus postoperative (POST) changes in sack anatomy.
N = 8
PRE 20 (%)
PRE 78 (%)
Difference
values
POST 20 (%)
POST 78 (%)
Difference
values
values PRE vs POST 20 (%)
values PRE vs POST 78 (%)
Aneurysm length (mm)
121.2 (82.0–128.3)
116.7 (87.3–131.6)
−4.5
0.272
117.0 (100.3–137.7)
124.6 (96.1–136.8)
7.6
0.454
0.079
0.006
Max angulation aorta (°)
31.0 (25.3–34.0)
27.0 (20.0–34.8)
−4.0
0.434
25.0 (13.8–31.3)
24.5 (12.5–31.8)
−0.5
0.736
0.071
0.196
Max diameter (mm)
65.1 (59.3–66.7)
64.4 (58.9–68.4)
−0.7
0.984
63.2 (60.6–67.7)
62.5 (60.6–69.0)
−0.7
0.724
0.634
0.822
Area on max diameter (mm2)
3007.7 (2633.6–3288.0)
3033.4 (2540.3–3448.7)
25.7
0.876
2922.8 (2630.3–3268.2)
2825.2 (2640.5–3399.1)
−97.7
0.759
0.823
0.881
Total volume sac (mL)
238.2 (129.7–270.4)
232.2 (127.4–273.2)
−6.0
0.567
233.2 (150.4–284.1)
236.1 (143.1–278.8)
2.9
0.409
0.062
0.015
Lumen volume sac (mL)
77.0 (68.9–95.2)
75.1 (63.2–91.2)
−2.0
0.146
109.2 (91.3–138.7)
103.4 (87.7–129.0)
−5.8
0.014
<0.001
<0.001
Thrombus volume (mL)
144.8 (64.7–190.3)
151.2 (62.3–192.9)
6.3
0.692
116.2 (60.7–154.0)
121.1 (58.2–160.0)
4.9
0.231
0.009
0.037
Data are displayed as median, followed by interquartile range (IQR). Difference in significance in values when preimplantation and postimplantation values were compared.
