Category Archives: Interventional

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Cerebral Aneurysm Calculator

This recently revised website is dedicated to providing quality resources for the management of cerebral aneurysms and features an online calculator for calculating cerebral aneurysm volume and percent packing volume after coil embolization. The site now includes product information from five major coil manufacturers including newly released coils. There is also an Imaging Library featuring multiple high resolution Netter neurovascular anatomical drawings. The site is designed to aid in both daily practice and as a research tool.

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Posted in Interventional | Tagged | 2 Comments

A Second-Generation, Endoluminal, Flow-Disrupting Device for Treatment of Saccular Aneurysms

Satoshi Tateshima, MD, D.M.Sc., Assistant Professor-Director of the Aneurysm Program, Division of Interventional Neuroradiology, Ronald Reagan UCLA Medical Center.

Gary Duckwiler, MD, Director of Clinical Affairs and Fellowship Director, Division of Interventional Neuroradiology, Ronald Reagan UCLA Medical Center

Flow diversion stents and endoluminal flow-disrupting devices are new therapeutic approaches to treat challenging intracranial aneurysms [1,2]. The first generation Pipeline Embolization Device (PED) has already been used in clinical practice. The reported results of PED treatment of intracranial aneurysms appear to be promising and very encouraging for the neuro-endovascular field [1,2]. However, there has always been a lingering concern associated with … Continue reading >>

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Are C1–2 Punctures for Routine Cervical Myelography below the Standard of Care?

Comment on: D.M. Yousem and S.K. Gujar Are C1–2 Punctures for Routine Cervical Myelography below the Standard of Care? AJNR Am J Neuroradiol first published on April 15, 2009 as doi: 10.3174/ajnr.A1594

In an original research article published April 15, 2009, Yousem and Gujar set out to determine the current neruradiologic practices and opinions on the performance of C1-2 punctures for routine cervical myelography. The impetus behind this investigation was a medicolegal case where the plaintiffs attorney argued that the performance of a C1-2 puncture for cervical myelography was below the standard of care.

The authors used a survey instrument … Continue reading >>

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Willinsky RA et al, Clinical and Endovascular Follow-Up of Embolized Aneurysms

A recent article published by Dr Robert Willinsky and colleagues from Toronto is noteworthy and an excellent addition to the literature on the subject of endovascular treatment of ruptured aneurysms. This is one of the largest series on this subject and addresses, amongst other things, the important issue of rebleeding after endovascular repair.

In this large series, the rehemorrhage rate after embolization was 2.1%. The risk of rebleeding was 1.6% in the first 30 days, decreasing to 0.7% after this time. The authors use a protocol of imaging the ruptured aneurysms with enhanced MRA at the time of discharge, followed … Continue reading >>

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Intracranial Hypotension: Advice on Best Treatment

Middle age female patient diagnosed with Spontaneous intracranial hypotension.  Has multiple (approx 23) perineural cysts.  Has undergone several blood patches and artificial CSF infusions without relief.  Does anyone have any thoughts on other therapies, new techniques, experts in field.  Appreciate the input.… Continue reading >>

Posted in Interventional, Spine | Tagged , | 10 Comments

Multiple Giant Aneurysms

Has anyone come across cases of multiple giant aneurysms, in middle aged adult patients, not HIV positive? I’ve seen a few recently, and am wondering whether this is a specific vasculopathic entity.… Continue reading >>

Posted in Brain, Interventional | 3 Comments

CT Cisternogram

I would like to know how much intrathecal contrast to inject for a CT cisternogram via a lumbar puncture approach. I am not sure.… Continue reading >>

Posted in Imaging Protocols and Techniques, Interventional, Spine | Tagged | 3 Comments

AJNR Paper Points to Future of Severe Ischemic Stroke Treatment

Acute ischemic stroke remains the most important neurologic malady in the world.  Severe strokes caused by artery occlusion are a minority of all strokes, but cause most of the poor outcomes and costs associated with stroke.  Neurointerventionalists have effective therapies, but too few  stroke patients undergo endovascular procedures.  The reasons are multiple, but a major reason is that patients too frequently arrive beyond the traditional time windows for treatment.  A way to break out of this dilemma is described in the paper recently ePublished in the AJNR (N. Janjua, A. El-Gengaihy, J. Pile-Spellman, and A.I. Qureshi Late Endovascular Revascularization in Acute Ischemic Continue reading >>

Posted in Brain, Functional, Interventional | Tagged , | Leave a comment

Posterior Fossa Vascular Anomaly

I recently saw a patient with a solitary artery arising from the PCA on on each side coursing downwards to supply the cerebellum and the vermis on the same side. Has there been any similiar observations/publications?… Continue reading >>

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Embolization of Brain Arteriovenous Malformations for Cure

The editorial comment in the AJNR of Jan 09 by Jayaraman and Cloft is worthy of careful scrutiny, I believe. Although in my personal experience with Onyx and NBCA, final cure rates of brain AVMs from embolization alone are much lower than those published in the literature, the safety record of my patient population has been good, with one major exception. A patient in her 40′s, complaining of mild headache only, no previous bleed, ruptured a large AVM in the right frontal lobe some hours after an uneventful embolization with NBCA. The impact of this catastrophe on her life has been … Continue reading >>

Posted in Interventional | 9 Comments