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. 2013 Nov;34(11):2192–2198. doi: 10.3174/ajnr.A3531

Table 2:

Comparison of arterial damage in the device and control samplesa

Solitaire 4 Samples (n = 4) Solitaire 6 Samples (n = 4) Catch Samples (n = 4) Merci Retriever Samples (n = 4) Penumbra Samples (n = 4) All Device Samples (n = 20) Control Samples (n = 20) P Valueb
Mural thrombus (%) 14.1 ± 28.1 0 9.4 ± 15.6 3.1 ± 6.2 0 5.3 ± 14.2 0 .05
Endothelial denudation (%) 85.8 ± 22.9 76.2 ± 12.8 76.1 ± 21.2 85.9 ± 12.1 40.1 ± 47.6 72.8 ± 29.4 0.9 ± 1.9 .0001
Intimal layer edema (%) 43.8 ± 51.5 81.3 ± 65.7 43.8 ± 37.5 66.5 ± 47.1 100 ± 89.1 67 ± 56.2 44.6 ± 43.6 .25
IEL fractured (%) 12.5 ± 14.4 25 ± 35.4 18.8 ± 23.9 50 ± 100 12.5 ± 14.4 23.7 ± 46.2 20.6 ± 33.3 .78
Medial layer edema (%) 25 ± 0 37.5 ± 43.3 81.3 ± 23.9 41.5 ± 35.2 75 ± 35.4 52 ± 35.9 18.1 ± 27.8 .004
EEL fractured (%) 0 0 0 0 0 0 0 Not applicable
Adventitia edema (%) 0 0 0 0 0 0 0 Not applicable
a

Data are means +/− standard deviations.

b

Mann-Whitney test comparing all device samples combined with control samples.