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Fig. 2A —Vessel phantoms with 75% or 95% stenosis at CT angiography
and MR angiography. Bars represent attenuation of residual lumen
(y-axis) and subjective scores of visibility of residual lumen (light
gray indicates low subjective score; dark gray, high subjective score) inside
respective stents (x-axis) compared with attenuation of stenosis
without stent. Inserts show images with stenosis inside respective stent type.
1 = nitinol with 1.7-mm2 mesh size and 165-µm strut thickness
(Expander, Bolton Medical), 2 = nitinol with 3-mm2 mesh size and
170-µm strut thickness (Hemobahn, Prograft Medical), 3 = nitinol with
4.5-mm2 mesh size and 245-µm strut thickness (SelfX, Abbott
Laboratories), 4 = nitinol with 2-mm2 mesh size and 200-µm strut
thickness (SMART, Cordis), 5 = nitinol with 15-mm2 mesh size and
235-µm strut thickness (Symphony, Boston Scientific), 6 = cobalt alloy with
1.7-mm2 mesh size and 195-µm strut thickness (Wallstent, Boston
Scientific), 7 = standard, SE = standard error. Graph shows results for CT
angiography of 75% stenosis.
