Endovascular Management of Long-Segmental Petrocavernous Internal Carotid Artery (Carotid S) Occlusion.

Background And Purpose: Long-segmental thrombotic occlusion of the distal internal carotid artery (ICA) sparing the cervical segment proximally and the supraclinoid segment distally, which could be termed 'Carotid S occlusion', has an unusual clinical presentation. However, endovascular management of this lesion is challenging. The purpose of our study is to report our endovascular treatment clinical experience of the disease.

Microembolism after Endovascular Treatment of Unruptured Cerebral Aneurysms: Reduction of its Incidence by Microcatheter Lumen Aspiration.

Purpose: Diffusion-weighted MR images (DWI) obtained after endovascular treatment of cerebral aneurysms frequently show multiple high-signal intensity (HSI) dots. The purpose of this study was to see whether we could reduce their incidence after embolization of unruptured cerebral aneurysms by modification of our coiling technique, which involves the deliberate aspiration of the microcatheter lumen right after delivery of each detachable coil into the aneurysm sac.

Materials And Methods: From January 2011 to June 2011, all 71 patients with unruptured cerebral aneurysms were treated using various endovascular methods.

Outpatient (Same-day care) Neuroangiography and Neurointervention.

Purpose: There have been few reports regarding same-day discharge following uncomplicated procedures such as cerebral angiography and neurointervention. We present same-day experience with cerebral angiography and neurointervention during the past three years.

Materials And Methods: Four hundred and fifty-three patients underwent cerebral angiography or neurointervention at Asan Medical Center between January 2009 and December 2011.

The Use of Protection Device in Landmark-wire Technique of Symptomatic Subclavian Artery Occlusion with Combined Approach via Trans-femoral vs. Trans-brachial Arteries: Technical note.

Purpose: Since we reported about a landmark technique to reopen an occluded subclavian artery, we have faced difficulty in using protection devices in the vertebral artery to protect against thromboembolism from the reversed steal phenomenon after angioplasty and stenting. Therefore, we are presenting an optimal solution in using a protection device while recanalizing the occluded subclavian artery.

Materials And Methods: Among 21 cases of stenting for subclavian artery steno-occlusion, we applied the landmark technique at the opposite end of an occluded segment in 4 patients and used a protection device in two patients.

Cerebral artery dissection: spectrum of clinical presentations related to angiographic findings.

Purpose: Cerebral arterial dissections are recognized as a common cause of stroke. However, few studies have reported on the distribution of cerebral arterial dissection and angiographic pattern related to the presenting clinical symptom pattern. We analyzed the distribution of cerebral artery dissection along with angiographic and clinical presenting a pattern as depicted on angiograms.