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https://www.readbyqxmd.com/read/28213195/blunt-traumatic-brain-injury-patients-a-role-for-ct-angiography-of-the-head-to-evaluate-non-traumatic-etiologies
#1
REVIEW
Ha Nguyen, Ninh Doan, Michael Gelsomino, Saman Shabani
BACKGROUND: In the setting of trauma, the etiology of intracranial hemorrhage (ICH) is frequently attributed to the physical, traumatic event. Caution should still be directed towards non-traumatic (or spontaneous) etiologies responsible for the trauma, such as hypertension, cerebral amyloid angiopathy, aneurysms, vascular malformation, and hemorrhagic infarcts. The role for immediate CT angiography (CTA) remains controversial to evaluate for non-traumatic etiologies. METHODS: A systematic review of the available literature in Medline PubMed database...
February 14, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28210801/patient-radiation-doses-and-reference-levels-in-pediatric-interventional-radiology
#2
Bouchra Habib Geryes, Adeline Bak, Julie Lachaux, Augustin Ozanne, Nathalie Boddaert, Francis Brunelle, Olivier Naggara, Guillaume Saliou
OBJECTIVES: To describe, in a multicentric paediatric population, reference levels (RLs) for three interventional radiological procedures. METHODS: From January 2012 to March 2015, children scheduled for an interventional radiological procedure in two French tertiary centres were retrospectively included and divided into four groups according to age: children younger than 2 years (A1), aged 2-7 years (A5), 8-12 years (A10) and 13-18 years (A15). Three procedures were identified: cerebral digital subtraction angiography (DSA), brain arteriovenous malformation (bAVM) embolization, and head and neck superficial vascular malformation (SVM) percutaneous sclerotherapy...
February 16, 2017: European Radiology
https://www.readbyqxmd.com/read/28210239/flow-diversion-for-the-treatment-of-mca-bifurcation-aneurysms-a-single-centre-experience
#3
Pervinder Bhogal, Muhammad AlMatter, Hansjörg Bäzner, Oliver Ganslandt, Hans Henkes, Marta Aguilar Pérez
BACKGROUND: Intracranial aneurysms located at the bifurcation of the middle cerebral artery (MCA) can often be challenging for the neurointerventionalist. We aimed to evaluate the efficacy and safety of flow diverting stents (FDS) in the treatment of these aneurysms. MATERIALS AND METHODS: We retrospectively reviewed our prospectively maintained database to collect information for all patients with unruptured saccular bifurcation MCA aneurysms treated with FDS between January 2010 and January 2016...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28209306/successful-coil-embolization-of-a-ruptured-mycotic-aneurysm-that-developed-three-days-after-septic-embolic-infarction-case-report-and-review-of-the-literature
#4
Joshua L Wang, Archana P Hinduja, Ciarán J Powers
BACKGROUND: Infectious intracranial aneurysms (IIAs) are rare entities and are often associated with septic embolus from infectious endocarditis. They may develop rapidly and carry a higher risk of rupture and mortality compared to noninfectious aneurysms. However, the development and rupture of an IIA within 48h in a patient with septic infarction patient is exceedingly rare. CASE DESCRIPTION: In this report, we describe a 25-year-old male who presented with left-sided hemiparesis and dysarthria from septic embolus to the right middle cerebral artery...
February 10, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28209305/initial-vasodilatation-in-a-child-with-reversible-cerebral-vasoconstriction-syndrome
#5
Yoshitsugu Oikawa, Yukimune Okubo, Yurika Numata-Uematsu, Yu Aihara, Taro Kitamura, Masaru Takayanagi, Yukitoshi Takahashi, Shigeo Kure, Mitsugu Uematsu
We describe the case of a 10-year-old boy who developed reversible cerebral vasoconstriction syndrome (RCVS) after cerebellitis. He received intravenous immunoglobulin and methylprednisolone to treat the cerebellitis. However, he then presented with a sudden severe headache, vomiting, and generalized tonic-clonic seizure. Brain magnetic resonance angiography (MRA) initially revealed diffuse cerebral vasodilatations, and diffuse multifocal segmental vasoconstrictions developed several days later. His clinical symptoms gradually resolved after several days, in the absence of any specific therapy...
February 10, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28208149/distal-middle-cerebral-artery-branch-recanalization-does-not-affect-final-lesion-volume-in-ischemic-stroke
#6
Verena van Ginneken, Daniel Gierhake, Heinrich J Audebert, Jochen B Fiebach
BACKGROUND: Early recanalization in ischemic stroke is associated with favorable outcome. However, limited data are available on the effect of recanalization on infarct growth and functional outcome in stroke with distal middle cerebral artery (MCA) pathology. This study was aimed at determining the effect of recanalization in acute stroke patients with perfusion-diffusion mismatch and occlusion or high-grade stenosis of a distal MCA branch. METHODS: We prospectively examined 34 consecutive stroke patients with perfusion-diffusion mismatch and M3 or M4 pathology within 24 h of symptom onset...
February 17, 2017: Cerebrovascular Diseases
https://www.readbyqxmd.com/read/28207465/two-rare-variants-of-left-vertebral-artery
#7
Rajani Singh
Though the variations of vertebral artery are clinically asymptomatic yet abnormalities are of diagnostic importance either prior to vascular surgery in the neck region or in patients of intravascular diseases such as arteriovenous malformations or cerebral aneurysms. Therefore, the aim of the study is to bring out 2 variations in the configuration of vertebral artery and their clinical implication. During dissection of thorax of 2 female cadavers, 2 different variants of configurations of left vertebral arteries were observed...
February 15, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28204602/measuring-cerebral-blood-flow-in-moyamoya-angiopathy-by-quantitative-magnetic-resonance-angiography-noninvasive-optimal-vessel-analysis
#8
Nadia Khan, Robert M Lober, Lauren Ostergren, Jacob Petralia, Teresa Bell-Stephens, Ramon Navarro, Abdullah Feroze, Gary K Steinberg
No abstract text is available yet for this article.
February 14, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28202831/-development-of-intracerebral-hemorrhage-and-subarachnoid-hemorrhage-shortly-after-cerebral-infarction-onset-in-an-adult-patient-with-moyamoya-disease
#9
Jun Yoshida, Yoshitaka Kubo, Kenji Yoshida, Kohei Chida, Masakazu Kobayashi, Kuniaki Ogasawara
Here we describe the case of a patient with moyamoya disease who developed cerebral infarction followed shortly by subarachnoid hemorrhage and intracerebral hemorrhage. A 50-year-old woman presenting with sudden and transient weakness of the left lower limb was transferred to a local hospital. Magnetic resonance imaging(MRI)revealed cerebral infarction in the corpus callosum and in the bilateral frontal lobes induced by moyamoya disease. Pyramidal tract was not affected. The patient was treated with an anti-platelet agent(ozagrel sodium 160mg/day)and did not undergo intentional antihypertensive therapy...
February 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/28202431/thrombus-migration-in-the-middle-cerebral-artery-incidence-imaging-signs-and-impact-on-success-of-endovascular-thrombectomy
#10
Johannes Kaesmacher, Christian Maegerlein, Mirjam Kaesmacher, Claus Zimmer, Holger Poppert, Benjamin Friedrich, Tobias Boeckh-Behrens, Justus F Kleine
BACKGROUND: Thrombus migration (TM) in intracranial vessels during ischemic stroke has been reported in the form of case reports, but its incidence, impact on the technical success of subsequent endovascular thrombectomy and patients' outcome have never been studied systematically. METHODS AND RESULTS: Retrospective analysis was done of 409 patients with isolated middle cerebral artery occlusions treated with endovascular thrombectomy. TM was observed (1) by analyzing discrepancies between computed tomographic angiography and digital subtraction angiography and (2) by comparing infarct pattern in the striatocapsular region with exact, angiographically assessed thrombus location within the M1-segment and the involvement of the middle cerebral artery perforators...
February 15, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28201864/recurrent-contrast-induced-encephalopathy-following-coronary-angiography
#11
Roberto Spina, Neil Simon, Romesh Markus, David W M Muller, Krishna Kathir
Contrast-induced encephalopathy (CIE) is an acute and reversible neurological disturbance associated with the intra-arterial administration of iodinated contrast medium during cardiac catheterisation. It may manifest with encephalopathy, motor and sensory disturbances; vision disturbances, including cortical blindness, ophthalmoplegia, aphasia; and seizures. Disruption of the blood-brain barrier and direct neuronal toxicity are believed to be implicated in the pathophysiology of the syndrome. Symptoms appear soon after contrast administration and resolve completely within 24-48 h...
February 2017: Internal Medicine Journal
https://www.readbyqxmd.com/read/28199398/a-segmentation-based-volumetric-approach-to-localize-and-quantify-cerebral-vasospasm-based-on-tomographic-imaging-data
#12
Axel Neulen, Tobias Pantel, Michael Kosterhon, Stefanie Kirschner, Marc A Brockmann, Sven R Kantelhardt, Alf Giese, Serge C Thal
INTRODUCTION: Quantification of cerebral vasospasm after subarachnoid hemorrhage (SAH) is crucial in animal studies as well as clinical routine. We have developed a method for computer-based volumetric assessment of intracranial blood vessels from cross-sectional imaging data. Here we demonstrate the quantification of vasospasm from micro computed tomography (micro-CT) data in a rodent SAH model and the transferability of the volumetric approach to clinical data. METHODS: We obtained rodent data by performing an ex vivo micro-CT of murine brains after sham surgery or SAH by endovascular filament perforation on day 3 post hemorrhage...
2017: PloS One
https://www.readbyqxmd.com/read/28196123/correction-cerebral-hemodynamics-in-patients-with-hemolytic-uremic-syndrome-assessed-by-susceptibility-weighted-imaging-and-four-dimensional-non-contrast-mr-angiography
#13
Ulrike Löbel, Nils Daniel Forkert, Peter Schmitt, Thorsten Dohrmann, Maria Schroeder, Tim Magnus, Stefan Kluge, Christina Weiler-Normann, Xiaoming Bi, Jens Fiehler, Jan Sedlacik
[This corrects the article DOI: 10.1371/journal.pone.0164863.].
2017: PloS One
https://www.readbyqxmd.com/read/28191623/the-ivy-sign-on-fluid-attenuated-inversion-recovery-images-related-to-single-photon-emission-computed-tomography-cerebral-blood-flow-in-moyamoya-disease-a-case-report
#14
Fumihiro Matano, Yasuo Murai, Asami Kubota, Takayuki Mizunari, Shiro Kobayashi, Akio Morita
BACKGROUND: Moyamoya disease is an idiopathic progressive cerebrovascular steno-occlusive disorder characterized by the formation of numerous collaterals called moyamoya vessels. Accurate evaluation of vascular status and CBF is needed for prompt treatment to prevent ischemic and/or hemorrhagic events. The pathogenesis of the ivy sign on fluid attenuated inversion recovery (FLAIR) images of moyamoya disease patients is unclear. We report a moyamoya disease case wherein the ivy sign changed in relation to SPECT-measured CBF during progression and following treatment...
January 17, 2017: Turkish Neurosurgery
https://www.readbyqxmd.com/read/28190553/cervical-spine-imaging-for-young-children-with-inflicted-trauma-expanding-the-injury-pattern
#15
Joanne Baerg, Arul Thirumoorthi, Rosemary Vannix, Asma Taha, Amy Young, Alexander Zouros
AIM: The purpose of this study was to document the incidence and pattern of cervical spine (c-spine) injuries in children below 36months with inflicted trauma. METHODS: An IRB approved, prospective cohort study was performed between July 2011 and January 2016. Inclusion criteria were: age below 36months, loss of consciousness after inflicted trauma, and one initial head computed tomography finding: a subdural, intraventricular, intraparenchymal, subarachnoid hemorrhage, diffuse axonal injury, hypoxic injury, or cerebral edema...
January 30, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28184353/spontaneous-regression-of-aneurysm-remnant-after-incomplete-surgical-clipping-in-a-patient-with-ruptured-cerebral-aneurysm
#16
Hyo Sub Jun, JunHyong Ahn, Joon Ho Song, In Bok Chang
Cases of spontaneous regression of cerebral aneurysm remnant after incomplete surgical clipping have been rarely reported. This paper reports the regression of an aneurysm remnant after incomplete surgical clipping during postsurgical follow-up. A 50-year-old male presented with subarachnoid hemorrhage because of rupture of an anterior communicating artery aneurysm. An emergency clipping of the aneurysm was performed. A cerebral angiography, which was performed two weeks postoperatively, revealed an aneurysm remnant...
December 2016: Journal of Cerebrovascular and Endovascular Neurosurgery
https://www.readbyqxmd.com/read/28184351/spontaneous-absorption-of-cerebral-air-embolus-developed-accidentally-during-an-intra-arterial-procedure
#17
Tae Ki Yang
Cerebral arterial air embolism (CAAE), although infrequent, is a complication that can occur at any time during an invasive medical procedure. We experienced two cases of CAAE during cerebral angiography accidentally. The author reports the two cases of CAAE wherein air emboli dissolved spontaneously and immediately under normal atmospheric pressure, not under therapeutic hyperbaric environment. One of the cases shows entire dissolution of the air embolus on the moving image. This report shows that arterial air embolus can be absorbed spontaneously, and air embolus size is one of the factors that influence air embolus dissolution besides hyperbaric oxygen condition...
December 2016: Journal of Cerebrovascular and Endovascular Neurosurgery
https://www.readbyqxmd.com/read/28184350/severe-cerebral-vasospasm-in-patients-with-hyperthyroidism
#18
Hyuk-Jin Oh, Seok-Mann Yoon, Jae-Sang Oh, Jai-Joon Shim, Hack-Gun Bae
Cerebral vasospasm associated with hyperthyroidism has not been reported to cause cerebral infarction. The case reported here is therefore the first of cerebral infarction co-existing with severe vasospasm and hyperthyroidism. A 30-year-old woman was transferred to our hospital in a stuporous state with right hemiparesis. At first, she complained of headache and dizziness. However, she had no neurological deficits or radiological abnormalities. She was diagnosed with hyperthyroidism 2 months ago, but she had discontinued the antithyroid medication herself three days ago...
December 2016: Journal of Cerebrovascular and Endovascular Neurosurgery
https://www.readbyqxmd.com/read/28184348/refractory-spontaneous-chronic-subdural-hematoma-a-rare-presentation-of-an-intracranial-arteriovenous-fistula
#19
El Kim
The author has encountered a 67-year-old man with dural arteriovenous fistula (AVF) presenting as a non-traumatic chronic subdural hematoma (CSDH). This previously healthy patient was hospitalized due to progressive headache with subacute onset. He underwent burr-hole surgery twice for evacuating the left CSDH that was thickest at the posterior temporal area. The operative procedure and finding was not extraordinary, but subdural hematoma slowly progressed for days following the revision surgery. After investigation by super-selective external carotid angiography, a dural AVF found near the transverse-sigmoid sinus was diagnosed...
December 2016: Journal of Cerebrovascular and Endovascular Neurosurgery
https://www.readbyqxmd.com/read/28182715/mr-angiography-allows-defining-severity-grades-of-cerebral-vasospasm-in-an-experimental-double-blood-injection-subarachnoid-hemorrhage-model-in-rats
#20
Vesna Malinova, Marios N Psychogios, Ioannis Tsogkas, Birte Koennecke, Kim Bleuel, Bogdan Iliev, Veit Rohde, Dorothee Mielke
OBJECTIVE: Magnetic resonance (MR) imaging has been used for the detection of cerebral vasospasm (VSP) related infarction in experimental subarachnoid hemorrhage (eSAH) in rats. Conventional angiography is generally used to visualize VSP, which is an invasive technique with a possible increase in morbidity and mortality. In this study we evaluated the validity of MR-angiography (MRA) in detecting VSP and its feasibility to define VSP severity grades after eSAH in rats. METHODS: SAH was induced using the double-hemorrhage model in 12 rats...
2017: PloS One
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