Article Figures & Data
Figures
- Fig 1.
Representative case (case 4).
A, Diameter of abdominal aorta is measured by using a measure wire.
B, Angiography is performed before stenting.
C, Just after stenting, angiography is performed to evaluate the patency of the lumbar artery (arrow).
D, Follow-up angiogram, obtained 3 months after stenting, confirms that the lumbar artery remains patent (arrow).
- Fig 2.
Case 5. Scanning electron microscopic findings obtained 1 week after stenting for the rabbit that became paraparetic after stenting reveal that the lumbar artery (asterisk) in the stent is patent without thrombus. The diameter of the lumbar artery is 729 μm. Endothelial integrity is injured along the struts by stent expansion (arrows), and underlying smooth muscle fiber is exposed in part of the luminal surface because of post-processing (original magnification ×100).
- Fig 3.
Representative case (case 4). Scanning electron microscopic findings obtained 3 months after stent placement reveal an open ostium of the lumbar artery (asterisk) and also show that regenerated endothelial-like cells are covered with stent strut in contact with the aorta and extend to the struts crossing the ostium of the lumbar artery (arrows). In this case, the extension of the regenerated endothelial cells into the ostia of lumbar arteries was observed (arrow), although the degree of narrowing due to this extension was not significant.
A, Original magnification ×80.
B, Original magnification ×150.
- Fig 4.
Microscopic findings stained with hematoxylin and eosin reveal that the luminal surface of the struts (S) across the ostium of the lumbar artery (asterisk) is lined with a monolayer of cells resembling regenerative endothelial cells.
A, Original magnification ×200.
B, Original magnification ×400.
Tables
Rabbit Diameter of Aorta (mm) Diameter of Lumbar Artery (μm) Deployed Stent Diameter (mm) Stent-to-Artery Ratio Angiographic Complication Patency of Lumbar Artery Just After 3 Months After 1 2.8 672 3.08 1.10 None Patent Patent 2 3.1 473 3.52 1.14 None Patent Patent 3 2.8 3.33 1.19 Dissection* 4 2.3 802 3.32 1.44 None Patent Patent 5 2.6 729 3.32 1.28 None† Patent Patent‡ 6 3.2 559 3.52 1.10 None Patent Patent 7 3.2 620 3.52 1.10 None Patent Patent 8 3.3 3.52 1.07 None Patent Patent Average 2.9 643 3.39 1.17 * In this case, the stent was delivered without a guidewire and caused intimal dissection.
† This rabbit became paraparetic after stenting, although the lumbar artery was patent on the post-stenting angiogram.
‡ Follow-up angiography of the rabbit was performed 1 week after stenting.
In this issue
Jump to section
Related Articles
Cited By...
- Preclinical safety and efficacy evaluation of the Pipeline Vantage Embolization Device with Shield Technology
- Long-Term Outcomes of Patients with Stent Tips Embedded into Internal Carotid Artery Branches during Aneurysm Coiling
- Critique of "Stenting Versus Aggressive Medical Therapy for Intracranial Arterial Stenosis" by Chimowitz et al in the New England Journal of Medicine
- Clinical and Angiographic Follow-Up of Stent-Only Therapy for Acute Intracranial Vertebrobasilar Dissecting Aneurysms
- A Second-Generation, Endoluminal, Flow-Disrupting Device for Treatment of Saccular Aneurysms
- Stent-Assisted Reconstructive Endovascular Repair of Cranial Fusiform Atherosclerotic and Dissecting Aneurysms: Long-Term Clinical and Angiographic Follow-Up
- A New Endoluminal, Flow-Disrupting Device for Treatment of Saccular Aneurysms