Article Figures & Data
Figures
- Fig 1.
Surgical construction of the model. Schematic depicting surgical construction of lingual fusiform model with or without branches, with venous patch graft remodeling to form large or giant aneurysms.
- Fig 2.
Angiographic results of treatments. Angiographic demonstration of giant fusiform aneurysm with (A) or without (B) arterial branches, 6 weeks after construction, immediately before treatment. Both have been treated with multiple FD constructs to span the aneurysmal dilation (arrows in C and D). Stent placement in the aneurysm with arterial branches led to treatment failure (E), whereas, in the aneurysm with surgically occluded branches led to almost complete aneurysm thrombosis after FD (F).
- Fig 3.
Residual aneurysm, neointima formation, and leaks. Note patent, open aneurysms (A; corresponding to Fig 2E), when the aneurysm serves as a reservoir for feeding branches. When branches are absent (B) the aneurysm is almost completely occluded, with pouches containing thrombus in various stages or organization (*). A small crescentic remnant, fed by a small leak (curved arrows) is present (**; aneurysm corresponding to Fig 2F). The FDs are covered with neointima both inside and outside (C), and leaks penetrate both neointimal layers covering the stents (D and E). There is good neointimal coverage of the stent struts apposed to the parent artery (E). Note patent arterial branch ostium but partially covered with neointimal tissue and organizing clot (F).
Tables
Angiographic and pathologic outcomes after flow diversion in experimental fusiform aneurysms
Aneurysm Patent Branches Aneurysm Size (Length × Width × Height) (mm) No. of FD Stents Length of Deployed Stents (mm in 3.5 mm vessel) Angiographic Outcome % Occlusion at Pathology Immediate 2 wk 12 wk 1 Yes 25 × 12.5 × 12.5 2 52 + 52 (104) 3 3 3 0 2 Yes 17.5 × 10 × 10 1 52 (52) 3 3 3 0 3 Yes 25 × 12.5 × 12.5 3 46 + 30 + 26 (102) 3 3 3 0 4 Yes 25 × 12 × 12 4 46 + 40 + 26 + 26 (138) 3 3 3 0 5 No 18 × 10 × 12 2 46 + 17 (83) 3 2 1 80 6 No 19 × 10 × 12 3 37 + 37 + 26 (100) 3 2 1 80
In this issue
Jump to section
Related Articles
Cited By...
- Surgical technique for venous patch aneurysms with no neck in a rabbit model
- Flow diversion of bifurcation aneurysms is more effective when the jailed branch is occluded: an experimental study in a novel canine model
- Testing Stenting and Flow Diversion Using a Surgical Elastase-Induced Complex Fusiform Aneurysm Model
- Compaction of flow diverters improves occlusion of experimental wide-necked aneurysms
- The Success of Flow Diversion in Large and Giant Sidewall Aneurysms May Depend on the Size of the Defect in the Parent Artery
- Variable Porosity of the Pipeline Embolization Device in Straight and Curved Vessels: A Guide for Optimal Deployment Strategy
- Flow diversion to treat aneurysms: the free segment of stent
- The Varying Porosity of Braided Self-Expanding Stents and Flow Diverters: An Experimental Study
- Thrombosis Heralding Aneurysmal Rupture: An Exploration of Potential Mechanisms in a Novel Giant Swine Aneurysm Model
- Flow Diverters Can Occlude Aneurysms and Preserve Arterial Branches: A New Experimental Model