2,067 results match your criteria Interventional Neuroradiology[Journal]


Embryology of the ophthalmic artery.

Authors:
Masaki Komiyama

Interv Neuroradiol 2019 Apr 20:1591019919845511. Epub 2019 Apr 20.

Interventional Neuroradiology, Department of Neuro-Intervention, Osaka City General Hospital, Osaka, Japan.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019919845511DOI Listing

The variant with the absence of the superior petrosal venous and sinus: A potential pitfall of transvenous balloon-assisted embolisation of Borden type II transverse-sigmoid dural arteriovenous fistula.

Interv Neuroradiol 2019 Apr 18:1591019919841929. Epub 2019 Apr 18.

Neurosurgery Department, Beijing Tsinghua Changgung Hospital, Beijing, China.

We describe a patient with Borden type II transverse-sigmoid dural arteriovenous fistula. On the venous phase of the left vertebral artery injection, there was no superior petrosal veins and sinus on the side of lesion. After transvenous balloon-assisted Onyx embolisation, the patient developed extensive venous infarction from venous occlusion. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019919841929DOI Listing
April 2019
1 Read

Intracranial mechanical thrombectomy using a proximal balloon guide catheter via a transradial access.

Interv Neuroradiol 2019 Apr 18:1591019919844850. Epub 2019 Apr 18.

1 Department of Neuroradiology, University Medical Center Goettingen, Goettingen, Germany.

We present a description of a successful recanalization of an intracranial vessel occlusion by stent retriever-based mechanical thrombectomy with a proximal balloon guide catheter introduced via a transradial access. Therefore, we used the radial artery itself as a natural sheath, as the introduction of a balloon guide catheter would not have been possible through a common radial sheath. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019919844850DOI Listing

Medium-term results of undersized angioplasty and stenting for symptomatic high-grade intracranial atherosclerotic stenosis with Enterprise.

Interv Neuroradiol 2019 Apr 16:1591019919832244. Epub 2019 Apr 16.

1 Department of Radiology, University of Health Sciences, Dr Sadi Konuk Training and Research Hospital, Istanbul, Turkey.

Purpose: The aim of this retrospective study is to evaluate medium-term results of undersized balloon angioplasty and stenting for symptomatic high-grade (70-99%) stenosis of a major intracranial artery with Enterprise stent.

Methods: This study included 68 consecutive symptomatic (recurrent transient ischemic attack (TIA) or ischemic stroke under dual antiplatelet treatment) patients with high-grade (70-99%) stenosis of a major intracranial artery who were endovascularly treated with undersized balloon angioplasty and Enterprise stent deployment between July 2012 and December 2017. Primary outcomes were any stroke or death within 30 days after procedure. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019919832244DOI Listing
April 2019
1 Read

Clots retrieved by mechanical thrombectomy from acute ischemic stroke patients show no evidence of bacteria.

Interv Neuroradiol 2019 Apr 2:1591019918819707. Epub 2019 Apr 2.

1 Department of Radiology, Mayo Clinic, Rochester, USA.

Background: Bacteria and bacterial components have been associated with the activation of coagulation factors and initiating the blood clot formation. The aim of this study was to investigate whether bacterial populations are present in clots retrieved from patients that have suffered a large vessel occlusion acute ischemic stroke (AIS).

Materials And Methods: Clot samples were collected from 20 AIS patients who underwent clot retrieval with mechanical thrombectomy. Read More

View Article

Download full-text PDF

Source
http://journals.sagepub.com/doi/10.1177/1591019918819707
Publisher Site
http://dx.doi.org/10.1177/1591019918819707DOI Listing
April 2019
2 Reads

Initial experience and one-year follow-up with Neuroform Atlas Stent System for the treatment of brain aneurysms.

Interv Neuroradiol 2019 Apr 2:1591019918819087. Epub 2019 Apr 2.

1 Department of Radiology-Interventional Neuroradiology, Hospital Universitario Central de Asturias, Oviedo, Asturias, Spain.

Introduction: The Neuroform Atlas Stent System is a recently introduced modification of the original Neuroform Stent System consisting of a hybrid design with open and closed cells. Initial experience, technical considerations and treatment outcomes including 1-year follow-up using the Atlas stent in combination with coil embolization are reported.

Material And Methods: Thirty patients with 30 unruptured aneurysms were treated with stent reconstruction. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019918819087DOI Listing
April 2019
2 Reads

Effectiveness of alternative routes of intra-arterial chemotherapy administration for retinoblastoma: Potential for response and complications.

Interv Neuroradiol 2019 Mar 31:1591019919831953. Epub 2019 Mar 31.

4 Department of Radiology, University of Minnesota, Minneapolis, MN, USA.

Objective: Intra-arterial chemotherapy (IAC) is now the first line treatment for selected patients with retinoblastoma (Rb). Typically, IAC is infused following the selective catheterization of the ophthalmic artery (OA) on the affected side. However, in some patients, the OA alone may not provide vascular supply to the tumor, whereas in other instances the efficacy of IAC could be compromised due to the presence of prominent collateral vessels from the external carotid artery (ECA). Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019919831953DOI Listing

The Silk Vista Baby: Initial experience and report of two cases.

Interv Neuroradiol 2019 Mar 31:1591019919839196. Epub 2019 Mar 31.

1 Department of Interventional Neuroradiology, The Royal London Hospital, London, UK.

In this report, we present two cases using a novel flow diverter, the Silk Vista Baby, to treat aneurysms successfully, both ruptured and unruptured, that would have been difficult to treat using alternative flow diverters. We describe the clinical and radiological features, outcome and the unique features of the Silk Vista Baby flow diverter. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019919839196DOI Listing
March 2019
2 Reads
0.730 Impact Factor

Metameric spinal AVM: Long-term symptomatic relief achieved by embolization of the extradural component.

Interv Neuroradiol 2019 Mar 28:1591019919828135. Epub 2019 Mar 28.

1 University of Ottawa, Ottawa, Canada.

Background: Metameric spinal cord arteriovenous malformations (AVMs) are rare lesions characterized by an intradural and extradural component. They are difficult to treat surgically by the endovascular route. We report a case in which symptomatic relief was achieved by embolization of the extradural component only. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019919828135DOI Listing

Pre-procedural simulation for precision stent-assisted coiling of cerebral aneurysm.

Interv Neuroradiol 2019 Mar 28:1591019919831923. Epub 2019 Mar 28.

1 Department of Radiological Sciences, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA.

Artificial vascular models are emerging as a newly-inexpensive and accurate way to simulate a procedure before the treatment. Through utilization of precision three-dimensionally printed, silicone-reconstructed, patient-specific models of aneurysms, we can compare the performance of devices including stents, and accurately predict the behavior of the microcatheter and stent-assisted coiling in the aneurysm to not only reduce procedural time, but also make the procedure safer. Here we report two challenging cases of wide-necked aneurysms, which could be safely treated with stent-assisted coiling as simulated in the patient-specific aneurysm models. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019919831923DOI Listing

Cerebral foreign body reaction due to hydrophilic polymer embolization following aneurysm treatment by pipeline flow diversion device.

Interv Neuroradiol 2019 Mar 28:1591019919830767. Epub 2019 Mar 28.

2 Stanford Hospital and Clinics, Stanford, USA.

The use of flow diverting stents for wide based, intracranial aneurysms has become an invaluable treatment option. While intracranial hemorrhage and ischemic stroke from dislodged atherosclerotic emboli are common adverse events, the potential for delayed granulomatous inflammation from possible hydrophilic polymer emboli is rarely recognized. We present a unique case in which visible chipping of the pusher wire for stent placement was observed, followed by clinical and radiographic evidence suggestive of a delayed foreign body reaction to intracranial hydrophilic polymer emboli. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019919830767DOI Listing
March 2019
1 Read

Balloon-assisted coiling of cerebral aneurysms with the dual-lumen Scepter XC balloon catheter: Experience at two high-volume centers.

Interv Neuroradiol 2019 Mar 28:1591019919828677. Epub 2019 Mar 28.

3 University of Iowa, Department of Neurology, Iowa City, United States of America.

Background: The Scepter XC is a dual-lumen balloon catheter that accommodates a 0.014-inch microwire and can be used for balloon-assisted coiling of cerebral aneurysms. We describe our experience with the use of this device. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019919828677DOI Listing
March 2019
1 Read

Endovascular management of a ruptured aneurysm associated with distal PICA fenestration.

Interv Neuroradiol 2019 Mar 28:1591019919838194. Epub 2019 Mar 28.

Department of Neuroimaging and Interventional Neuroradiology, All India Institute of Medical Sciences, New Delhi, India.

Fenestrations are rare but well-known arterial anatomic variations in which a segment of artery divides into two parallel channels that reunite distally. Although fenestrations as such are asymptomatic, they have gained clinical significance because of their association with aneurysms and other intracranial vascular pathologies. Here we present a 35-year-old woman with history of sudden severe occipital headache and vomiting. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019919838194DOI Listing

Pipeline embolization device implantation in large carotid cavernous aneurysm associated with situs inversus totalis.

Interv Neuroradiol 2019 Mar 21:1591019919834628. Epub 2019 Mar 21.

3 Department of Neurosurgery, Juntendo University Faculty of Medicine, Tokyo, Japan.

Situs anomalies are a heterogenous class of inborn visceral and vascular abnormalities with a broad range of radiographic characteristics. Situs inversus totalis is characterized by mirror image location of the heart and viscera relative to situs solitus (normal position). Few aberrations involving the neuraxis, and rarely intracranial aneurysms, have been reported in association with situs inversus totalis. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019919834628DOI Listing

Can silicone models replace animal models in hands-on training for endovascular stroke therapy?

Interv Neuroradiol 2019 Mar 21:1591019919833843. Epub 2019 Mar 21.

1 Department of Diagnostic and Interventional Neuroradiology, RWTH Aachen University, Aachen, Germany.

Purpose: Since thrombectomy has become a standard treatment technique for stroke, there is great demand for well-trained interventionalists. We offer practical courses on both silicone models and porcine models, and conducted a survey to evaluate whether ex vivo training models could replace in vivo models in the future.

Methods: In total, 110 neurointerventionalists participating in 30 training courses were included in our survey using a semi-structured questionnaire. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019919833843DOI Listing

First-line contact aspiration vs stent-retriever thrombectomy in acute ischemic stroke patients with large-artery occlusion in the anterior circulation: Systematic review and meta-analysis.

Interv Neuroradiol 2019 Feb 4:1591019918821074. Epub 2019 Feb 4.

4 Department of Diagnostic and Therapeutic Neuroradiology, University Hospital of Nancy, Nancy, France.

Background: In acute ischemic stroke patients with large-artery occlusion, uncertainties remain about whether clinically important outcomes are comparable between first-line contact aspiration and stent-retriever thrombectomy, although two trials have investigated whether one strategy should be preferred over another.

Purpose: The purpose of this article is to compare the efficacy and safety of first-line contact aspiration and stent-retriever thrombectomy in stroke patients with anterior circulation large-artery occlusion.

Methods: We undertook a systematic review of studies of patients treated for large-artery occlusion, with the latest devices of either strategy, within six hours of stroke onset. Read More

View Article

Download full-text PDF

Source
http://journals.sagepub.com/doi/10.1177/1591019918821074
Publisher Site
http://dx.doi.org/10.1177/1591019918821074DOI Listing
February 2019
4 Reads

Transvenous Approach for the Treatment of cerebral Arteriovenous Malformations (TATAM): study protocol of a randomised controlled trial.

Interv Neuroradiol 2019 Feb 4:1591019918821738. Epub 2019 Feb 4.

7 Department of Radiology, Centre Hospitalier de l'Université de Montréal (CHUM), Montreal, Canada.

Background: Transvenous embolisation is a promising technique but the benefits remain uncertain. We hypothesised that transvenous embolisation leads to a higher rate of arteriovenous malformation angiographic occlusion than transarterial embolisation.

Methods: The Transvenous Approach for the Treatment of cerebral Arteriovenous Malformations (TATAM) is an investigator initiated, multicentre, prospective, phase 2, randomised controlled clinical trial. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019918821738DOI Listing
February 2019
3 Reads
0.730 Impact Factor

Endovascular recanalization of symptomatic non-acute intracranial artery occlusion: Procedural and mid-term clinical outcomes in the anterior circulation.

Interv Neuroradiol 2019 Feb 27:1591019919826616. Epub 2019 Feb 27.

1 Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.

Objective: Symptomatic non-acute intracranial arterial occlusion (NAICO) is not uncommon. We report a single-center experience of the feasibility and safety of endovascular treatment of anterior circulation NAICO and summarize the outcomes of patient groups with successful or failed recanalization.

Methods: Patients who underwent endovascular therapy for intracranial arterial stenosis between January 2010 and May 2017 were retrospectively reviewed. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019919826616DOI Listing
February 2019

Lyophilizing thrombin powder-based treatment for hemostasis during coil embolization of ruptured cerebral aneurysm: Two case reports.

Interv Neuroradiol 2019 Feb 25:1591019918824866. Epub 2019 Feb 25.

2 Department of Interventional Neuroradiology, Beijing Neurosurgical Institute and Beijing Tiantan Hospital, Capital Medical University, Beijing, China.

Background: Rupture of cerebral aneurysm is an inevitable complication during embolization, followed by subsequent acute subarachnoid hemorrhage or intracranial hematoma, and results in the aggravation of a patient's condition. In particular, for patients who have had a ruptured aneurysm, urgent treatment strategies are required during operation. The most common hemostatic methods seen in clinical practices are as follows: after lowering the blood pressure, we continue to embolize the aneurysms with detachable coils as soon as possible or inject with Glubran/Onyx embolization liquids, as well as use a balloon catheter to temporarily block the blood supply. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019918824866DOI Listing
February 2019
6 Reads
0.730 Impact Factor

Vacuum for straightening the microcatheter after intra-aneurysmal looping: The "Lagman vacuum" technique.

Interv Neuroradiol 2019 Feb 25:1591019918824867. Epub 2019 Feb 25.

2 Democritus University of Thrace, Radiology Department, University Hospital of Alexandroupolis, Greece.

In many cases, an intra-arterial microcatheter loop is necessary to bypass the neck of wide-necked giant aneurysms for the placement of a stent across it. The removal of this loop is usually challenging, and many techniques have been described to achieve it. We describe a simple novel technique for straightening the microcatheter across the aneurysm's neck, without the need for additional products/devices or complex exchanging techniques. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019918824867DOI Listing
February 2019
2 Reads

Delayed development of a de novo contralateral middle cerebral artery aneurysm in a patient with hyperimmunoglobulin E syndrome: A case report.

Interv Neuroradiol 2019 Feb 25:1591019919828657. Epub 2019 Feb 25.

3 St Paul Radiology, St Paul, USA.

A 50-year-old female patient with hyperimmunoglobulin E syndrome (HIES) presented initially at the age of 48 years with subarachnoid hemorrhage (SAH) from a ruptured left middle cerebral artery (MCA) bifurcation aneurysm, which was treated successfully with coiling and microsurgical clipping. Angiography and cross-sectional imaging did not indicate evidence of any additional intracranial aneurysm. However, the patient presented two years later with SAH secondary to a new ruptured right MCA bifurcation aneurysm, which was treated successfully with microsurgical clipping. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019919828657DOI Listing
February 2019
2 Reads

DWI-pc-ASPECT score in basilar artery occlusion: is 6 points or less always indicative of a bad outcome?

Interv Neuroradiol 2019 Feb 25:1591019919827505. Epub 2019 Feb 25.

2 Department of Radiology, University of Ulsan College of Medicine, Seoul, Republic of Korea.

Background And Purpose: The prognosis of patients with acute basilar arterial occlusion after endovascular reperfusion therapy with diffusion-weighted imaging - posterior circulation-Alberta Stroke Program Early Computed Tomography Score (DWI-pc-ASPECTS) of 6 or less remains unclear. We aimed to assess the characteristics and prognosis of endovascular reperfusion therapy in patients with acute basilar arterial occlusion and DWI-pc-ASPECTS of 6 or less.

Methods: We analysed data collected from 1 January 2012 to 31 January 2018 in a prospective neuro-interventional registry of consecutive patients treated with endovascular reperfusion therapy. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019919827505DOI Listing
February 2019

Precision microcatheter shaping in vertebrobasilar aneurysm coiling.

Interv Neuroradiol 2019 Feb 25:1591019918824012. Epub 2019 Feb 25.

2 Department of Neurosurgery, Jichi Medical University, Shimotsuke, Japan.

Background: Inventing an optimal curve on a microcatheter is required for successful intracranial aneurysm coiling. Shaping microcatheters for vertebrobasilar artery aneurysm coiling is difficult because of the vessel's long, tortuous and mobile anatomy. To overcome this problem, we devised a new method of shaping the microcatheter by using the patient's specific vessel anatomy and the highly shapable microcatheter. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019918824012DOI Listing
February 2019

Neuroform Atlas stent in treatment of iatrogenic dissections of extracranial internal carotid and vertebral arteries: a single-centre experience.

Interv Neuroradiol 2019 Feb 25:1591019919830215. Epub 2019 Feb 25.

Department of Surgical Sciences, University Hospital, Uppsala, Sweden.

Aim Of The Study: To present our experience in the treatment of iatrogenic dissections of extracranial internal carotid and vertebral arteries with the Neuroform Atlas stent.

Materials And Methods: Between January 2017 and February 2018 we treated iatrogenic dissections of three internal carotid arteries and three vertebral arteries. These iatrogenic dissections occurred during the endovascular treatment of ruptured and unruptured intracranial aneurysms. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019919830215DOI Listing
February 2019
2 Reads

Visual disorders caused by cranial arteriovenous fistula with venous drainage into the superior ophthalmic vein.

Interv Neuroradiol 2019 Feb 25:1591019919829626. Epub 2019 Feb 25.

2 Department of Neurosurgery, Kitasato University, Sagamihara, Japan.

Background: Although the abnormal venous drainage into the superior ophthalmic vein (SOV) is a well-known entity responsible for ocular symptoms, it remains unclear to what degree it affects the visual function. The purpose of this study was to evaluate the incidence, characteristics and outcomes of the visual disorders in patients with intracranial arteriovenous fistula (AVF) with venous drainage into the SOV.

Methods: This retrospective study involved eight patients diagnosed with intracranial AVFs with abnormal venous drainage into the SOV between January 2014 and December 2016. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019919829626DOI Listing
February 2019
2 Reads

Posterior communicating and anterior communicating arteries on pre-thrombectomy computed tomography scans are associated with good outcomes irrespective of leptomeningeal collateral status.

Interv Neuroradiol 2019 Feb 25:1591019919831215. Epub 2019 Feb 25.

7 University Hospitals Leuven, Leuven, Belgium.

Background: Collateral blood flow is known to be an important factor that sustains the penumbra during acute stroke. We looked at both the leptomeningeal collateral circulation and the presence of anterior and posterior communicating arteries to determine the factors associated with good outcomes and mortality.

Methods: We included all patients with acute ischaemic stroke in the anterior circulation, who underwent thrombectomy with the same thrombectomy device from 2013 to 2016. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019919831215DOI Listing
February 2019
0.730 Impact Factor

Treatment of posterior inferior cerebellar artery aneurysms using flow-diverter stents: A single-center experience.

Interv Neuroradiol 2019 Feb 25:1591019918824003. Epub 2019 Feb 25.

Department of Radiology, Karadeniz Technical University Medical Faculty, Trabzon, Turkey.

Introduction: The effectiveness and reliability of flow-diverter stents, which are commonly used in aneurysms of the anterior circulation, have been demonstrated previously. However, the use of these devices is associated with higher rates of perforator and branch ischemia following the treatment of aneurysms of the posterior circulation.

Methods: This work involved a single-center; retrospective study reviewing eight patients who had aneurysms related to the posterior inferior cerebellar artery (PICA) and who were treated with flow-diverter stents from September 2013 to May 2017. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019918824003DOI Listing
February 2019
1 Read

Endovascular aspiration to treat acute ischemic stroke caused by embolic carcinoma.

Interv Neuroradiol 2019 Feb 20:1591019918817224. Epub 2019 Feb 20.

2 Department of Neurosurgery, National Brain Aneurysm and Tumor Center, Twin Cities, USA.

Although cardiac myxomas have been known to cause acute ischemic stroke and other cerebrovascular complications, intracranial embolization of metastatic tumor fragments is rare. This is likely because venous emboli generally cause pulmonary embolism. Pulmonary vein metastases and patent foramen ovales have previously shown to propagate intracranial embolic carcinomas, but these events are very uncommon, and are not well characterized. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019918817224DOI Listing
February 2019

Vessel wall enhancement of a ruptured intra-nidal aneurysm in a brain arteriovenous malformation.

Interv Neuroradiol 2019 Feb 14:1591019918824796. Epub 2019 Feb 14.

1 Department of Interventional Neuroradiology, The Royal London Hospital, London, UK.

Ruptured arteriovenous malformations are a frequently encountered pathology with significant associated morbidity and mortality. Identifying and securing the rupture point is mandatory; however, this can often be difficult. Black blood vessel wall magnetic resonance imaging is a promising technique for identifying ruptured saccular aneurysms and has been used in cases of multiple aneurysms. Read More

View Article

Download full-text PDF

Source
http://journals.sagepub.com/doi/10.1177/1591019918824796
Publisher Site
http://dx.doi.org/10.1177/1591019918824796DOI Listing
February 2019
6 Reads
0.730 Impact Factor

Endovascular treatment of dural arteriovenous fistulas with sinus drainage: Do we really need to protect the sinus?

Interv Neuroradiol 2019 Feb 4:1591019918819187. Epub 2019 Feb 4.

3 Amsterdam University Medical Center, Amsterdam, Netherlands.

Background And Purpose: Dural arteriovenous fistulas (DAVFs) with direct antegrade sinus drainage have a benign natural history but bruit can be disabling. Disconnection of the draining sinus is considered curative. We present the treatment results of 14 patients with a dural arteriovenous fistula with antegrade sinus return with emphasis on functionality of the involved sinus and the need for sinus patency. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019918819187DOI Listing
February 2019
1 Read

Initial experience with the novel EmboTrap II clot-retrieving device for the treatment of ischaemic stroke.

Interv Neuroradiol 2019 Feb 4:1591019918819709. Epub 2019 Feb 4.

2 Interventional Neurovascular Unit, Careggi University Hospital, Firenze, Italy.

Introduction: We report our experience with the novel stent-type clot-retrieval device EmboTrap II for the revascularization of large artery occlusions in acute ischaemic stroke.

Materials And Methods: Twenty-nine patients with acute ischaemic stroke due to large artery occlusion underwent mechanical thrombectomy with the new EmboTrap II in two Italian centres. Clinical, procedural and radiological data were collected. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019918819709DOI Listing
February 2019
18 Reads

Thrombus perviousness is not associated with first-pass revascularization using stent retrievers.

Interv Neuroradiol 2019 Feb 4:1591019918825444. Epub 2019 Feb 4.

Joint Department of Medical Imaging, Toronto Western Hospital, Toronto, Canada.

Background And Purpose: Recent studies suggest that thrombus imaging characteristics such as Hounsfield unit (HU) and perviousness assessed on noncontrast computed tomography (NCCT) and CT angiography (CTA) can predict successful recanalization. We assessed whether these thrombus imaging characteristics could predict successful first-pass recanalization.

Methods: We retrospectively reviewed cases of mechanical thrombectomy over a three-year period in which patients received a multiphase CTA and were treated with a stent retriever on first pass. Read More

View Article

Download full-text PDF

Source
http://journals.sagepub.com/doi/10.1177/1591019918825444
Publisher Site
http://dx.doi.org/10.1177/1591019918825444DOI Listing
February 2019
11 Reads
0.730 Impact Factor

Gadolinium to the rescue for mechanical thrombectomy in acute ischemic stroke.

Interv Neuroradiol 2018 Dec 19:1591019918815298. Epub 2018 Dec 19.

2 Department of Radiology, University of Minnesota, Minneapolis, Minnesota, USA.

Introduction: Mechanical thrombectomy in the setting of acute ischemic stroke (AIS) requires cerebral digital subtraction angiography (DSA), typically performed with iodinated contrast medium. We present a case of emergent cerebral DSA and mechanical thrombectomy using gadolinium-based contrast for cerebral DSA in a patient with a history of anaphylaxis to iodinated contrast agents (ICs).

Case Report: A 72-year-old man developed left ventricle assist device thrombus while on anticoagulation. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019918815298DOI Listing
December 2018
3 Reads

Analysis of revascularisation in ischaemic stroke with EmboTrap (ARISE I study) and meta-analysis of thrombectomy.

Interv Neuroradiol 2018 Dec 18:1591019918817406. Epub 2018 Dec 18.

7 Departments of Neuroradiology and Clinical Neuroscience, Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden.

Background And Purpose: The goal of the analysis of revascularisation in ischaemic stroke with EmboTrap study (ARISE I) was to demonstrate the effectiveness of EmboTrap.

Methods: ARISE I was an open label, single arm, multicentre, prospective study for the treatment of acute stroke due to large vessel occlusion. The primary outcome was revascularisation of the target vessel as measured by the modified thrombolysis in cerebrovascular infarction (mTICI) score of at least 2b following thrombectomy with EmboTrap. Read More

View Article

Download full-text PDF

Source
http://journals.sagepub.com/doi/10.1177/1591019918817406
Publisher Site
http://dx.doi.org/10.1177/1591019918817406DOI Listing
December 2018
7 Reads

Differences in characteristics and outcomes after endovascular therapy: A single-center analysis of patients with vertebrobasilar occlusion due to underlying intracranial atherosclerosis disease and embolism.

Interv Neuroradiol 2018 Dec 4:1591019918811800. Epub 2018 Dec 4.

1 Department of Interventional Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.

Background: Therapeutic strategies and outcomes vary with stroke subtypes for patients with acute vertebrobasilar occlusion (VBAO). This study aimed to compare characteristics and outcomes of VBAO due to intracranial atherosclerotic disease (ICAD) and embolisms and identify baseline predictors of ICAD.

Methods: Patients with VBAO who received endovascular therapy (EVT) were retrospectively analyzed. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019918811800DOI Listing
December 2018
9 Reads

Carotid surgical cut-down technique for neuroendovascular therapy.

Interv Neuroradiol 2018 Nov 28:1591019918815920. Epub 2018 Nov 28.

1 Department of Neurosurgery, Dokkyo Medical University, Saitama Medical Center, Japan.

Background: Neuroendovascular therapy is typically performed via the femoral artery, but there are rare cases in which a tortuous upstream angioarchitecture makes it difficult to access the intracranial circulation via this route.

Methods: In this case series, we describe six cases treated by surgical cut-down in the neck, with puncture of the carotid artery. Antiplatelet and anticoagulation agents were used in all cases. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019918815920DOI Listing
November 2018
21 Reads

Endovascular techniques for achievement of better flow diverter wall apposition.

Interv Neuroradiol 2018 Nov 28:1591019918815294. Epub 2018 Nov 28.

1 Division of Neuroimaging and Intervention, Department of Radiology and New England Center for Stroke Research, University of Massachusetts, Worcester, Massachusetts, USA.

Flow diverter malapposition has been described as a technical complication during endovascular procedures and can be associated with, potentially delayed, life-threatening aneurysm rupture or ischemic events. We performed a retrospective review of our flow diverter database to identify all patients in whom device malapposition was detected on follow-up angiogram immediately after device deployment. Feasibility and technical success of different endovascular approaches aiming to correct the inadequate vessel wall apposition were evaluated. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019918815294DOI Listing
November 2018
1 Read
0.730 Impact Factor

Middle meningeal artery occlusion for intra-arterial chemotherapy of retinoblastoma.

Interv Neuroradiol 2018 Nov 28:1591019918815286. Epub 2018 Nov 28.

1 Department of Radiology, Lausanne University Hospital, Lausanne, Switzerland.

We report the intentional occlusion of the middle meningeal artery arising from the lacrimal artery, a novel technique to improve drug delivery in a 14-month-old boy with a history of right sporadic unilateral cavitary retinoblastoma group D. The patient was referred to our institution for intra-arterial chemotherapy after two systemic chemotherapy treatments. The digital subtraction angiography showed a large middle meningeal artery arising from the right lacrimal artery and decrease choroidal enhancement thus decreased flow to the tumor. Read More

View Article

Download full-text PDF

Source
http://journals.sagepub.com/doi/10.1177/1591019918815286
Publisher Site
http://dx.doi.org/10.1177/1591019918815286DOI Listing
November 2018
5 Reads

3MAX catheter for thromboaspiration of downstream and new territory emboli after mechanical thrombectomy of large vessel occlusions: initial experience.

Authors:
Fabio Settecase

Interv Neuroradiol 2018 Nov 21:1591019918811802. Epub 2018 Nov 21.

1 Department of Radiology, University of British Columbia, Vancouver, Canada.

Distal emboli and emboli to new territories occur in up to 14% and 11% of large vessel occlusion mechanical thrombectomies, respectively. A retrospective review was conducted of 18 consecutive patients with large vessel occlusion acute stroke undergoing mechanical thrombecomy, subsequently developing distal emboli and/or emboli to new territory for which thromboaspiration using the 3MAX catheter was performed. Eighteen distal emboli and two emboli to new territory in 18 patients were treated in the distal M2 and M3 middle cerebral artery, pericallosal and callosomarginal arteries, and P2 posterior cerebral artery (all arteries ≥1. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019918811802DOI Listing
November 2018
11 Reads

Accidental guide catheter fracture in mechanical thrombectomy.

Interv Neuroradiol 2018 Nov 21:1591019918814011. Epub 2018 Nov 21.

2 Neurology Research Institute of Neurointervention, Paracelsus Medical University, Salzburg, Austria.

Endovascular thrombectomy is now the standard of care for large vessel occlusion stroke. The aim is to achieve rapid and complete recanalisation while avoiding complications. Apart from the conventional complications of neurointerventional procedures, mechanical thrombectomy has its unique set of complications, inherent to the disease pathophysiology. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019918814011DOI Listing
November 2018
16 Reads

Current state of acute stroke care in Southeast Asian countries.

Interv Neuroradiol 2018 Nov 21:1591019918811804. Epub 2018 Nov 21.

8 National Neuroscience Institute, Singapore.

Acute stroke care systems in Southeast Asian countries are at various stages of development, with disparate treatment availability and practice in terms of intravenous thrombolysis and endovascular therapy. With the advent of successful endovascular therapy stroke trials over the past decade, the pressure to revise and advance acute stroke management has greatly intensified. Southeast Asian patients exhibit unique stroke features, such as increased susceptibility to intracranial atherosclerosis and higher prevalence of intracranial haemorrhage, likely secondary to modified vascular risk factors from differing dietary and lifestyle habits. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019918811804DOI Listing
November 2018
16 Reads

Use of a radial artery 'slender' sheath for facilitating transfemoral arterial access for neuroendovascular embolization in a very young infant.

Interv Neuroradiol 2018 Nov 21:1591019918813212. Epub 2018 Nov 21.

1 Department of Medical Imaging, University Hospital, London Health Sciences Centre, London, Ontario, Canada.

Pediatric neuroendovascular procedures are increasingly performed as several studies have shown the safety of these interventions. In the literature, an upper limit of 4 French catheter size is conventionally used for femoral access in neuroangiography of very young infants. However, this constraint in luminal size may not allow for more complex procedures. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019918813212DOI Listing
November 2018
17 Reads

Acute ischemic stroke secondary to cardiac embolus of a 'foreign body' material after a redo sternotomy for mitral valve replacement: A case report.

Interv Neuroradiol 2019 Apr 14;25(2):208-211. Epub 2018 Nov 14.

1 Department of Radiology, Mayo Clinic, Rochester, USA.

Cardiac surgery has been shown to be associated with increased risk of acute ischemic stroke. This report presents a case of a successful mechanical embolectomy procedure to treat a patient for an acute ischemic stroke, which was caused by the cardiac embolization of a 'foreign body' containing debris following a redo sternotomy procedure for mitral valve replacement and tricuspid valve annuloplasty. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019918810538DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6448371PMC
April 2019
1 Read
0.730 Impact Factor

Complete resolution of a cervical spine aneurysmal bone cyst after single session of endovascular embolization: Case report.

Interv Neuroradiol 2018 Nov 8:1591019918810534. Epub 2018 Nov 8.

2 Department of Neurological Surgery, University of South Florida, Tampa, USA.

Treatment options for aneurysmal bone cysts include intralesional curettage, segmental excision, en bloc resection and endovascular embolization. The most commonly used treatment is intralesional curettage and selective arterial embolization is normally an adjunctive therapy, not a definitive treatment. We report a case of a C1 lateral mass aneurysmal bone cyst treated with a single session of endovascular embolization. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019918810534DOI Listing
November 2018
2 Reads

Optical coherence tomography: Translation from 3D-printed vascular models of the anterior cerebral circulation to the first human images of implanted surface modified flow diverters.

Interv Neuroradiol 2019 Apr 5;25(2):150-156. Epub 2018 Nov 5.

6 Advocate Health, Cerebrovascular Neurosurgery and Comprehensive Stroke Center, Chicago, IL, USA.

Background: The new generation of flow diverters includes a surface modification with a synthetic biocompatible polymer, which makes the device more biocompatible and less thrombogenic. Optical coherence tomography (OCT) can be used to visualize perforators, stent wall apposition, and intra-stent thrombus. Unfortunately real world application of this technology has been limited because of the limited navigability of these devices in the intracranial vessels. Read More

View Article

Download full-text PDF

Source
http://journals.sagepub.com/doi/10.1177/1591019918808466
Publisher Site
http://dx.doi.org/10.1177/1591019918808466DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6448367PMC
April 2019
13 Reads

Intravenous versus intra-arterial digital subtraction angiography: Occlusion rate and complication assessment of experimental aneurysms after flow diverter treatment in rabbits.

Interv Neuroradiol 2019 Apr 4;25(2):157-163. Epub 2018 Nov 4.

1 Department of Neuroradiology, Saarland University Hospital, Homburg/Saar, Germany.

Purpose: Conventional intra-arterial digital subtraction angiography, which requires surgical exposure and ligation of the femoral or carotid artery, is a limited method of evaluating elastase-induced aneurysms in New Zealand white rabbits. The purpose of this study was to assess aneurysm morphology, occlusion rates and complications after flow diverter treatment comparing intravenous and intra-arterial digital subtraction angiography.

Methods: We previously published a preclinical study in which we evaluated the occlusion rates of elastase-induced aneurysms after treatment with a prototype flow diverter, by using intra-arterial digital subtraction angiography at three months ( n = 9) and six months ( n = 9). Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019918808537DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6448376PMC
April 2019
19 Reads

Surgical options in experimental porcine model for endovascular training in complex vascular lesions.

Interv Neuroradiol 2018 Nov 4:1591019918810850. Epub 2018 Nov 4.

1 Department of Neurosurgery, Vall d'Hebron University Hospital, Barcelona, Spain.

We describe a new, elegant, two-phase, microsurgical method that minimizes the surgical preparation time for different complex vascular lesions in a swine model. In the first phase, the model is prepared microsurgically in the experimental laboratory using arterial or/and venous grafts. In the second phase, the model is implanted in the experimental animal. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019918810850DOI Listing
November 2018
13 Reads

Transnasal devascularisation of a sinonasal hypervascular tumour (glomangiopericytoma) with direct injection of liquid polymer agent (Squid®).

Interv Neuroradiol 2019 Apr 4;25(2):230-233. Epub 2018 Nov 4.

1 Neuroradiology Department, University Hospital of Verona, Verona, Italy.

The technique of direct intratumoral injection of permanent liquid agents has evolved significantly over the past few decades. The percutaneous direct puncture technique is being utilised more and more for embolisation of head and neck hypervascular lesions. We describe a case treated via the direct percutaneous transnasal (TN) puncture technique for embolisation of a sinonasal hypervascular tumour, performed in a 21-year-old male patient. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019918805776DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6448383PMC
April 2019
16 Reads

Delayed intracranial aneurysm formation after cardiac myxoma resection: Report of two cases and review of the literature.

Interv Neuroradiol 2019 Apr 4;25(2):177-181. Epub 2018 Nov 4.

Division of Interventional Neuroradiology, New York Presbyterian Hospital/Weill Cornell Medical Center, New York, USA.

Myxomas are slowly growing benign neoplasms and represent the most common tumor of the heart. Embolism from cardiac myxoma occurs in 30-45% of patients and in at least half of the cases cerebral arteries are affected leading mainly to embolic ischemic strokes and rarely to delayed intracranial aneurysm formation. We present two cases with delayed intracranial aneurysmal formation 14 years and 18 years after cardiac myxoma resection. Read More

View Article

Download full-text PDF

Source
http://journals.sagepub.com/doi/10.1177/1591019918808026
Publisher Site
http://dx.doi.org/10.1177/1591019918808026DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6448373PMC
April 2019
21 Reads

Acute administration of tirofiban versus aspirin in emergent carotid artery stenting.

Interv Neuroradiol 2019 Apr 4;25(2):219-224. Epub 2018 Nov 4.

5 Department of Neuroradiology, Cantonal Hospital Aarau, Aarau, University of Bern, Switzerland.

Background: Carotid artery stenting requires antiplatelet therapy for prevention of in-stent thrombosis. Patients suffering from acute ischemic stroke undergoing intravenous thrombolysis and emergent carotid artery stenting (eCAS) are at high risk for intracranial bleeding. We assessed efficacy and safety of acute administration of intravenous tirofiban versus aspirin in these patients. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1591019918808777DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6448368PMC
April 2019
1 Read