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Source: Journal of Stroke and Cerebrovascular Diseases
Procedure: Angiography
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Total 337 results found since Jan 2013.
Simultaneous Onset of Anterior and Middle Cerebral Artery Dissections with an Old Vertebral Artery Dissection
We report a patient with infarctions caused by simultaneous arterial dissections in the right anterior cerebral artery and the left middle cerebral artery and discuss the characteristic feature of this vascular disorder. A 53-year-old woman presented with a severe headache and a mild aphasia. Magnetic resonance imaging revealed multiple acute cerebral infarctions in the left temporal and right frontal lobes. The initial angiographic findings revealed arterial dissections of the anterior cerebral, left middle cerebral, and right vertebral arteries. The follow-up angiographic examination found improvement of the stenosis in ...
Source: Journal of Stroke and Cerebrovascular Diseases - April 16, 2012 Category: Neurology Authors: Tatsuya Kato, Takashi Yagi, Hideyuki Yoshioka, Masakazu Ogiwara, Toru Horikoshi, Hiroyuki Kinouchi Tags: Original Articles Source Type: research
Predictors of Severity of Cerebral Vasospasm caused by Aneurysmal Subarachnoid Hemorrhage
Background: Cerebral vasospasm is one of the leading causes of poor outcome after aneurysmal subarachnoid hemorrhage. The risk factors for the development of vasospasm have been evaluated in many clinical studies. However, it remains unclear if vasospasm severity can be predicted. The purpose of this study was to determine if different demographic and clinical factors that appear to be predictors of vasospasm can also prognosticate the severity of cerebral vasospasm.Methods: We retrospectively analyzed consecutive patients with subarachnoid hemorrhage who underwent endovascular vasospasm treatment in a single center. In or...
Source: Journal of Stroke and Cerebrovascular Diseases - February 18, 2013 Category: Neurology Authors: Ramazan Jabbarli, Sven Gläsker, Johannes Weber, Christian Taschner, Manfred Olschewski, Vera Van Velthoven Tags: Original Articles Source Type: research
Measurement of Carotid Stenosis Using Duplex Ultrasonography with a Microconvex Array Transducer: A Validation with Cerebral Angiography
Background: We aimed to evaluate the validity of duplex ultrasonography (DUS) using a microconvex array transducer (MAT) with enhanced flow imaging (EFI) for visualization of the distal, internal carotid artery (ICA) and the accurate assessment of ICA stenosis.Methods: Patients who underwent both DUS and digital subtraction angiography (DSA) were registered for this study. DUS was performed by using a linear array transducer (LAT) and an MAT with EFI. The visibility of the ICA was compared between the 2 transducers. ICA stenosis was evaluated by the North American Symptomatic Carotid Endarterectomy Trial (NASCET) method on...
Source: Journal of Stroke and Cerebrovascular Diseases - April 22, 2013 Category: Neurology Authors: Yohei Tateishi, Akira Tsujino, Jumpei Hamabe, Osamu Tasaki, Minoru Morikawa, Nobutaka Horie, Kentaro Hayashi, Izumi Nagata Tags: Original Articles Source Type: research
Signal Intensity Changes for the Middle Cerebral Artery on 3-Dimensional Time-of-flight Magnetic Resonance Angiography Indicate Acute Hemodynamic Changes after Carotid Endarterectomy
In this study, we aimed to evaluate whether 3D-TOF-MRA could be used as an alternative to single-photon emission computed tomography (SPECT) for assessing the increase in the regional cerebral blood flow (rCBF) after carotid endarterectomy (CEA). To do this, we compared the SI of the middle cerebral artery (MCA) on magnetic resonance angiography (MRA) and the rCBF on SPECT.Methods: We enrolled 30 patients with internal carotid artery stenosis. SPECT and MRA were performed before and 3-4 days after CEA. rCBF was assessed using SPECT, and the SI of the MCA was assessed using single-slab 3D-TOF-MRA. Regions of interest were...
Source: Journal of Stroke and Cerebrovascular Diseases - July 1, 2013 Category: Neurology Authors: Kimitoshi Sato, Akira Kurata, Hidehiro Oka, Shinichi Kan, Yusuke Inoue, Yuji Asano, Kiyotaka Fujii Tags: Original Articles Source Type: research
Interobserver Reproducibility of Signal Intensity Ratio on Magnetic Resonance Angiography for Hemodynamic Impact of Intracranial Atherosclerosis
Conclusions: SIR was demonstrated to be highly reproducible between observers in the present study. Future studies are warranted to further explore the role of this index in comprehensive evaluation and risk stratification of symptomatic ICAS.
Source: Journal of Stroke and Cerebrovascular Diseases - September 27, 2013 Category: Neurology Authors: Xinyi Leng, Hing Lung Ip, Yannie Soo, Thomas Leung, Liping Liu, Edward Feldmann, Ka Sing Wong, David S. Liebeskind Tags: Original Articles Source Type: research
Cerebral Infarction in Both Carotid and Vertebrobasilar Territories Associated with a Persistent Primitive Hypoglossal Artery with Severe Dilated Cardiomyopathy
A persistent primitive hypoglossal artery (PPHA) is a relatively rare vascular anomaly of a persistent carotid–basilar anastomosis. A 76-year-old man with severe dilated cardiomyopathy suddenly lost consciousness. A magnetic resonance imaging scan of his brain revealed extensive infarction in the carotid and vertebrobasilar territories. Magnetic resonance angiography revealed a PPHA and occlusion of the left internal carotid artery and vertebrobasilar artery. Cardioembolic infarction associated with a PPHA should be recognized as a possible cause of multiple infarctions in both the carotid and vertebrobasilar distributio...
Source: Journal of Stroke and Cerebrovascular Diseases - September 10, 2012 Category: Neurology Authors: Hiroyuki Kawano, Yuichiro Inatomi, Teruyuki Hirano, Toshiro Yonehara Tags: Case Reports Source Type: research
Dermatomal Sensory Manifestations in Lateral Medullary Infarction
In conclusion, lateral medullary infarction is an important entity to consider in the differential diagnosis of dermatomal sensory manifestations.
Source: Journal of Stroke and Cerebrovascular Diseases - October 24, 2012 Category: Neurology Authors: Hiroki Hongo, Yasutaka Tanaka, Yoshiaki Shimada, Ryota Tanaka, Nobutaka Hattori, Takao Urabe Tags: Case Reports Source Type: research
Ipsilateral Sensorimotor Deficits in Lateral Medullary Infarction: A Case Report
The patient, a 32-year-old man, presented with sudden onset of occipital headache, vertigo, dysarthria, gait ataxia, right Horner syndrome, numbness of the right hand, and mild right hemiparesis. On magnetic resonance imaging, an acute small infarction was located on the right side of the caudal medulla extending dorsomedially. Magnetic resonance angiography showed severe right vertebral artery stenosis. Lateral medullary infarction associated with ipsilateral sensorimotor deficits in the limb is very rare, and the lesion probably involved the ipsilateral dorsal column or decussating lemniscal fibers and corticospinal fibe...
Source: Journal of Stroke and Cerebrovascular Diseases - December 10, 2012 Category: Neurology Authors: Tetsuro Sameshima, Akio Morita, Yumiko Yamaoka, Yasumitsu Ichikawa Tags: Case Reports Source Type: research
MRI-guided Sonothrombolysis of Rabbit Carotid Artery
The potential of magnetic resonance imaging–guided focused ultrasound (MRgFUS) combined with the thrombolytic drug recombinant tissue plasminogen activator (rt-PA) to dissolve clots in the carotid of a New Zealand rabbit in vivo is evaluated. A spherically focused transducer of 5-cm diameter, focusing at 10 cm and operating at 1 MHz, was used. A pulsed ultrasound protocol was used that maintains a tissue temperature increase of less than 1°C in the clot (called safe temperature). MRgFUS has the potentials to dissolve clots that are injected in the carotid of rabbits in vivo. It was found that the time needed for ope...
Source: Journal of Stroke and Cerebrovascular Diseases - October 14, 2013 Category: Neurology Authors: Christakis Damianou, Venediktos Hadjisavvas, Nicos Mylonas, Andreas Couppis, Kleanthis Ioannides Tags: Original Articles Source Type: research
A Ruptured Aneurysm Arising at the Leptomeningeal Collateral Circulation from the Extracranial Vertebral Artery to the Posterior Inferior Cerebellar Artery Associated with Bilateral Vertebral Artery Occlusion
We report an extremely rare case of a small ruptured aneurysm of the leptomeningeal collateral circulation from the vertebral artery (VA) to the posterior inferior cerebellar artery (PICA); this aneurysm was associated with bilateral VA occlusion. A 72-year-old woman with sudden headache, nausea, and subarachnoid hemorrhage (SAH) was admitted to our hospital. On admission, no evidence of cerebral signs or cranial nerve palsy was found. Computed tomography imaging showed SAH predominantly in the posterior fossa, and digital subtraction angiography revealed bilateral VA occlusion and the left VA aneurysm located proximal to ...
Source: Journal of Stroke and Cerebrovascular Diseases - December 9, 2013 Category: Neurology Authors: Masashi Chonan, Shinjitu Nishimura, Naoto Kimura, Masayuki Ezura, Hiroshi Uenohara, Teiji Tominaga Tags: Case Reports Source Type: research
Brain Response Characteristics Associated with Subclavian Steal Phenomenon
Conclusions: Although we noted low rates of disabling or fatal strokes in patients with SSS, a variety of vascular and neural factors beyond severity of subclavian steal could influence the likelihood of brain damage.
Source: Journal of Stroke and Cerebrovascular Diseases - October 21, 2013 Category: Neurology Authors: Keun-Hwa Jung, Jeong-Min Kim, Soon-Tae Lee, Kon Chu, Jae-Kyu Roh Tags: Original Articles Source Type: research
A Case of Sinus Arrest and Post-hiccup Cough Syncope in Medullary Infarction
We describe asymptomatic sinus arrest and post-hiccup cough syncope in a patient with medullary infarction. A 78-year-old woman developed arrhythmia, hiccup, and cough syncope attacks. Neurological examination was not remarkable. Cough syncope occurs after hiccup attacks. Bradycardia and decreased blood pressure were also present after the beginning cough. Holter 24-hour electrocardiography monitor exhibited 65 episodes of asymptomatic sinus arrest more than 3 seconds. Magnetic resonance imaging disclosed acute infarction in the bilateral medial regions and the right tegmentum of the upper and middle medulla oblongata. Ce...
Source: Journal of Stroke and Cerebrovascular Diseases - May 8, 2013 Category: Neurology Authors: Takanori Takazawa, Ken Ikeda, Osamu Kano, Takayuki Kabuki, Kiyokazu Kawabe, Yasuo Iwasaki Tags: Case Reports Source Type: research
Postoperative Dural Arteriovenous Fistula in a Patient with Cowden Disease: A Case Report
We report the case of a 37-year-old male with Cowden disease that caused a gradual neurological deficit because of rupture of a brain stem cavernous hemangioma. Removal of the hemangioma and hematoma was performed with an infrafacial triangle approach. Nine months after the operation, magnetic resonance imaging showed abnormal vessels on the cerebellar surface. Digital subtraction angiography showed a dural arteriovenous fistula (dAVF) from part of the meningeal artery to the ectatic inferior vermian vein with cortical reflux. After embolization, surgical obliteration of the dAVF was performed. Surgical findings showed ne...
Source: Journal of Stroke and Cerebrovascular Diseases - May 15, 2013 Category: Neurology Authors: Hirokazu Sadahiro, Hideyuki Ishihara, Hisaharu Goto, Fumiaki Oka, Satoshi Shirao, Hiroshi Yoneda, Michiyasu Suzuki Tags: Case Reports Source Type: research
Effects of Carotid Endarterectomy or Stenting on Arterial Diameters in the Circle of Willis
Conclusions: Carotid revascularization improves anterior collateralization and reduces reliance on posterior collateral pathways via the CoW. Carotid stenting and endarterectomy appear to have different early effects on collateralization.
Source: Journal of Stroke and Cerebrovascular Diseases - July 17, 2013 Category: Neurology Authors: Rianne B.C. Bost, Jeroen Hendrikse, Ale Algra, Gert J. de Borst, Laurens Jaap Kappelle, Lisa M. Jongen, Martin M. Brown, Hendrik Bart van der Worp Tags: Original Articles Source Type: research
A Dilated Surface Appearance on Basiparallel Anatomic Scanning–Magnetic Resonance Imaging Is a Useful Tool for the Diagnosis of Spontaneous Vertebral Artery Dissection in Lateral Medullary Infarction
Spontaneous dissection of the vertebral artery (VA) is a major vascular lesion causing lateral medullary infarction (LMI). A dilated surface appearance of the VA is a feature of VA dissection and can be observed on basiparallel anatomic scanning (BPAS)–magnetic resonance imaging (MRI). The aim of this study was to validate BPAS-MRI in the diagnosis of VA dissection in patients with LMI. The subjects of the present study were 41 consecutive patients with LMI within 7 days of onset. The diagnosis of VA dissection was made with the clinical criteria-based diagnosis. Percent (%) dilatation of the VA on BPAS-MRI was calculat...
Source: Journal of Stroke and Cerebrovascular Diseases - August 19, 2013 Category: Neurology Authors: Ryo Itabashi, Etsuro Mori, Eisuke Furui, Shoichiro Sato, Yukako Yazawa, Kenta Kawata, Satoru Fujiwara Tags: Original Articles Source Type: research
