Cardiovascular and interventional radiology
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Cardiovasc Intervent Radiol · May 2009
First magnetic resonance imaging-guided aortic stenting and cava filter placement using a polyetheretherketone-based magnetic resonance imaging-compatible guidewire in swine: proof of concept.
The purpose of this study was to demonstrate feasibility of percutaneous transluminal aortic stenting and cava filter placement under magnetic resonance imaging (MRI) guidance exclusively using a polyetheretherketone (PEEK)-based MRI-compatible guidewire. Percutaneous transluminal aortic stenting and cava filter placement were performed in 3 domestic swine. Procedures were performed under MRI-guidance in an open-bore 1.5-T scanner. ⋯ Guidewire visibility through applied markers was rated acceptable for aortic stenting and good for venous filter placement. Steerability, pushability, and device support were good. The PEEK-based guidewire allows either percutaneous MRI-guided aortic stenting in the thoracic and abdominal segments of the descending aorta and filter placement in the inferior vena cava with acceptable to good device visibility and offers good steerability, pushability, and device support.
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Cardiovasc Intervent Radiol · May 2009
Letter Case ReportsStent-graft repair of a large cervical internal carotid artery pseudoaneurysm causing dysphagia.
Pseudoaneurysms of the cervical internal carotid artery (ICA) are rare and most frequently result from trauma, infection, or sometimes spontaneously. They have the potential to cause life-threatening hemorrhage; thus, their immediate management is necessary. Endovascular treatment by stent graft placement in the affected artery appears to be a safe and effective treatment option. We present a case of a child who presented with neck swelling and dysphagia caused by a ruptured cervical ICA pseudoaneurysm which was managed by stent graft placement.
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Cardiovasc Intervent Radiol · May 2009
Review Case ReportsEndovascular stent graft placement in the treatment of ruptured tuberculous pseudoaneurysm of the descending thoracic aorta: case report and review of the literature.
We report a successful repair of a ruptured tuberculous pseudoaneurysm of the descending thoracic aorta by endovascular stent graft placement. This procedure is starting to be accepted as an alternative method to surgery, and we review similar cases in the literature.
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Cardiovasc Intervent Radiol · May 2009
Case ReportsTranscatheter closure of a chronic iatrogenic arteriovenous fistula between the carotid artery and the brachiocephalic vein with an Amplatzer duct occluder in combination with a carotid stent.
We report an original method of transcatheter closure of an arteriovenous fistula using the combination of an Amplatzer PDA occluder and a carotid stent. The fistula was between the left carotid artery and the brachiocephalic vein. ⋯ The fistula was completely closed. The patient stopped having symptoms and, 2 years after the procedure, the effect persists.