Purpose To assess the ability of noninvasive vascular elastography (NIVE) to help characterize @entity1070 and @entity715 organization in a @entity235 model of @entity1028 after @entity439 repair with stent-grafts, in comparison with computed tomography (CT) and pathologic examination findings. Materials and Methods All protocols were approved by the Animal Care Committee in accordance with the guidelines of the Canadian Council of Animal Care. Stent-grafts were implanted in a group of 18 @entity235 with @entity439 created in the abdominal aorta. @entity1070 was created in four @entity439 ; @entity1070 , in 13 @entity439 ; and no @entity1070 , in one @entity439 . Doppler ultrasonography and NIVE examinations were performed at baseline and at 1-week, 1-month, 3-month, and 6-month follow-up. Angiography, CT, and macroscopic tissue examination were performed at sacrifice. Strain values were computed by using the Lagrangian speckle model estimator. @entity1070 , solid organized @entity715 , and fresh @entity715 were identified and segmented by comparing the results of CT and macroscopic tissue examination. Strain values were compared by using the Wilcoxon rank-sum and Kruskal-Wallis tests. Results All stent-grafts were successfully deployed, and @entity1070 were clearly depicted in the last follow-up elastography examinations. Maximal axial strains over consecutive heart cycles in @entity1070 , organized @entity715 , and fresh @entity715 areas were 0.78%    0.22, 0.23%    0.02, 0.10%    0.04, respectively. Strain values were significantly different between @entity1070 and organized or fresh @entity715 areas (P < .000) and between organized and fresh @entity715 areas (P < .0002). No correlation was found between strain values and type of @entity1070 , sac pressure, @entity1070 size, and @entity439 size. Conclusion NIVE may be able to help characterize @entity1070 and @entity715 organization, regardless of the size, pressure, and type of @entity1070 . (  ) RSNA, 2015.

Endovascular Repair of XXXX : Follow-up with Noninvasive Vascular Elastography in a @entity235 Model.

@entity1070 :: ('MESH:D057867', 'Disease') :: ['endoleaks', 'Type I endoleak', 'endoleak', 'type II endoleak', 'Areas of endoleak'] @entity235 :: ('9615', 'Species') :: ['canine', 'dogs'] @entity439 :: ('MESH:D000783', 'Disease') :: ['endovascular aneurysm', 'aneurysms', 'aneurysm'] @entity715 :: ('MESH:D013927', 'Disease') :: ['thrombus'] @entity1028 :: ('MESH:D017544', 'Disease') :: ['abdominal aortic aneurysm']
@entity1028 :: (MESH:D017544,Disease) :: ['Abdominal Aortic Aneurysm']
