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https://www.readbyqxmd.com/read/28516244/a-comparison-of-basilar-artery-diameters-measured-by-t2wi-and-tof-mr-angiography
#1
Emre Can Çelebioğlu, Muhammed Mustafa Aldur, Selcuk Tunali, Murvet Hayran, Ayşe Beliz Taşçıoğlu, F Mustafa Sargon
PURPOSE: The purpose of our study is to compare basilar artery diameters (BAD) measured by T2WI to diameters measured by TOF MR angiography (MRA). By doing this, we hope to understand how compatible these two methodologies are with each other. METHODS: We used data from 100 patients (59 females, 41 males) who underwent a session of both T2W MRI and TOF MRA at the same time (ages between 18 and 83). We measured BAD by both T2WI and TOF MRA in three different levels...
May 17, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/28509611/efficacy-of-high-resolution-cone-beam-ct-in-the-evaluation-of-perforators-in-vertebral-artery-dissection
#2
Kenji Shimada, Michihiro Tanaka, Keisuke Kadooka, Hiromu Hadeishi
Introduction A major complication of internal coil trapping for vertebral artery dissection (VAD) is medullary infarction associated with perforator occlusion. Currently, higher spatial resolution imaging can be obtained with high-resolution cone-beam computed tomography (VASO CT), and the efficacy of perforator visualization adjacent to VAD was examined. Methods Eight patients who underwent internal coil trapping or stent-supported coil embolization underwent VASO CT to evaluate perforators around VAD. Visualization of perforators was compared with conventional digital subtraction angiography (DSA) and three-dimensional rotational angiography (3D-RA)...
January 1, 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/28495534/hybrid-treatment-of-the-aberrant-right-subclavian-artery-arteria-lusoria-feasibility-study-on-180-angio-cts
#3
Nicla Settembre, Charbel Saba, Zakariyae Bouziane, Fanette Jeannon, Damien Mandry, Serguei Malikov
OBJECTIVES: The aberrant right subclavian artery or arteria lusoria (AL) is the most frequent anatomical variation of the supra-aortic trunks (SAT). Treatment is only warranted in presence of an aneurysm because of the risk of rupture or in symptomatic cases with signs of compression of the esophagus or the trachea, with embolisms causing right upper limb ischemia of vertebrobasilar cerebrovascular accidents (CVA). The conventional surgical treatment of AL is the closure of the origin of AL and the revascularization of the artery right subclavian through a left thoracotomy...
May 8, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28491050/a-persistent-primitive-hypoglossal-artery-as-the-sole-supply-to-the-brain-associated-with-a-basilar-bifurcation-aneurysm
#4
Ming Wang, Jun Gu, Ping Lan, Shu Wan, Yongqing Zhou, Xiujue Zheng, Renya Zhan
The persistent primitive hypoglossal artery (PPHA) is the second most common persistent carotid-vertebrobasilar anastomosis, with an incidence of 0.027-0.26%. PPHAs change the hemodynamics of the carotid and vertebrobasilar system and may be associated with intracranial vascular anomalies, but basilar bifurcation aneurysms were rarely reported. We describe the first case of a PPHA as the sole supply to the brain associated with a basilar bifurcation aneurysm and review the literature. We reported a 34-year-old woman who presented with subarachnoid hemorrhage due to a ruptured basilar bifurcation aneurysm...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28479809/mild-encephalitis-with-a-reversible-splenial-lesion-a-clinical-benign-condition-often-underrecognized-clinical-case-and-literature-review
#5
Sandro Zambito Marsala, Eleonora Antichi, Michele Pistacchi, Manuela Gioulis, Rosa Maria Candeago, Roberta Taranto Montemurro, Manrico Gentile, Paolo D'Andrea, Franco Ferracci
Mild encephalitis with reversible lesion in the splenium is a clinicoradiological syndrome characterized by a variegated symptomatology with a solitary mass in the central portion of the splenium of the corpus callosum. Complete spontaneous resolution is the hallmark of this syndrome, though its pathogenesis is still unknown. We describe the clinical picture of a 51-year-old woman who developed a partial sensitive seizure, with MRI evidence of a lesion localized in the posterior portion of the corpus callosum...
April 2017: Journal of Neurosciences in Rural Practice
https://www.readbyqxmd.com/read/28458386/carotid-vertebrobasilar-anastomoses-with-reference-to-their-segmental-property
#6
Katsunari Namba
The primitive carotid-vertebrobasilar anastomoses are primitive embryonic cerebral vessels that temporarily provide arterial supply from the internal carotid artery to the longitudinal neural artery, the future vertebrobasilar artery in the hindbrain. Four types known are the trigeminal, otic, hypoglossal, and proatlantal intersegmental arteries. The arteries are accompanied by their corresponding nerves and resemble an intersegmental pattern. These vessels exist in the very early period of cerebral arterial development and rapidly involute within a week...
May 1, 2017: Neurologia Medico-chirurgica
https://www.readbyqxmd.com/read/28451828/right-persistent-trigeminal-artery-variant-ptav-and-tiny-left-pta-associated-with-bilateral-ophthalmic-arteries-arising-from-the-cavernous-segments-of-the-internal-carotid-arteries
#7
Akira Uchino, Hiroaki Neki, Fumitaka Yamane
Persistent trigeminal artery (PTA) and its variant (PTAV) are the most prevalent types of carotid-vertebrobasilar anastomosis, but bilateral anastomoses are exceedingly rare. We report a case of a right PTAV and tiny left lateral-type PTA from which the cerebellar artery (presumed anterior inferior cerebellar artery) arose. And also, bilateral ophthalmic arteries arose from the cavernous segments of the internal carotid arteries and entered the orbits via the superior orbital fissures. Selective cerebral angiography, especially 3-dimensional angiography, is superior to magnetic resonance (MR) angiography to identify rare variations of the cerebral arteries...
April 27, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/28450231/bow-hunter-s-syndrome-surgical-management-video-and-review-of-the-literature
#8
Ben A Strickland, Martin H Pham, Joshua Bakhsheshian, Jonathan J Russin, William J Mack, Frank L Acosta
BACKGROUND: Bow Hunter's Syndrome (BHS) is a rare condition characterized by vertebrobasilar insufficiency associated with rotational vertebral artery occlusion during head movement. Many existing reports describe surgical management, though no single technique has proven superior. OBJECTIVE: To review all reported cases of BHS with focus on outcomes of individual techniques as well as present a video report of a posterior decompression without fusion performed at the authors' institution...
April 24, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28434468/the-effect-of-chinese-herbal-medicine-banxia-baizhu-tianma-decoction-for-the-treatment-of-vertebrobasilar-insufficiency-vertigo-a-systematic-review-and-meta-analysis-of-randomized-controlled-trials
#9
REVIEW
ZhenLang Guo, ZhenNing Su, ZhengFei Wang, XiaoMu Luo, RenKui Lai
OBJECTIVES: Banxia Baizhu Tianma Decoction (BBTD) is widely used to treat vertebrobasilar insufficiency vertigo (VBIV) in China, but its efficacy remains largely unexplored. We systemically summarized relevant evidence from randomized controlled trials (RCTs) to assess the therapeutic effect of BBTD. METHODS: Seven electronic databases were searched for relevant electronic studies published before July 2016. We evaluated RCTs that compared BBTD, anti-vertigo drugs and a combination of BBTD and anti-vertigo drugs...
April 2017: Complementary Therapies in Medicine
https://www.readbyqxmd.com/read/28424012/internal-carotid-artery-agenesis-a-case-report-and-review-of-literature
#10
REVIEW
Shuo Li, Kusum Hooda, Nishant Gupta, Yogesh Kumar
Congenital agenesis of the internal carotid artery is a very rare anomaly. Intracranial circulation in the involved internal carotid artery territory is maintained by collateral circulation from the contralateral internal carotid artery through the anterior communicating artery and from the vertebrobasilar system through the posterior communicating artery. Usually, patients with internal carotid artery agenesis are asymptomatic due to collateral circulation, but they may present with headache, seizures, or transient ischemic attack...
April 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28402528/macrovascular-decompression-of-the-brainstem-and-cranial-nerves-evolution-of-an-anteromedial-vertebrobasilar-artery-transposition-technique
#11
Omar Choudhri, Ian D Connolly, Michael T Lawton
BACKGROUND: Tortuous and dolichoectatic vertebrobasilar arteries can impinge on the brainstem and cranial nerves to cause compression syndromes. Transposition techniques are often required to decompress the brainstem with dolichoectatic pathology. We describe our evolution of an anteromedial transposition technique and its efficacy in decompressing the brainstem and relieving symptoms. OBJECTIVE: To present the anteromedial vertebrobasilar artery transposition technique for macrovascular decompression of the brainstem and cranial nerves...
April 11, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28400985/spanning-from-the-west-to-east-an-updated-review-on-endovascular-treatment-of-intracranial-atherosclerotic-disease
#12
REVIEW
Mohammed Hussain, Neil Datta, Zhe Cheng, David Dornbos, Asif Bashir, Ibrahim Sultan, Tapan Mehta, Faris Shweikeh, Paul Mazaris, Nora Lee, Amre Nouh, Xiaokun Geng, Yuchuan Ding
Ischemic stroke is a major cause of morbidity and mortality, incurring significant cost. Intracranial atherosclerotic disease (ICAD) accounts for 10-15% of ischemic stroke in Western societies, but is an underlying pathology in up to 54% of ischemic strokes in Asian populations. ICAD has largely been treated with medical management, although a few studies have examined outcomes following endovascular treatment. Our objective was to summarize the major trials that have been performed thus far in regard to the endovascular treatment of ICAD and to provide direction for future management of this disease process...
April 2017: Aging and Disease
https://www.readbyqxmd.com/read/28395418/-efficacy-comparison-of-three-vascular-recanalization-in-patients-with-acute-vertebrobasilar-occlusion
#13
G H Ni, C Liang, W D Zhao, X Y Tian, H G Sun, S R Gao, L S Ding
Objectives: To investigate the therapeutic effects of intravenous thrombolysis, intra-artery thrombolysis, mechanical thrombectomy on patients with acute vertebrobasilar occlusion. Methods: Retrospective analysis of clinical data of patients with acute vertebrobasilar occlusion, admitted to Huai'an First People's Hospital and Bingtuan Qishi Hospital from January 2014 to January 2016, was performed. According to different vascular recanalization, these patients were divided into intravenous thrombolysis group, intra-artery thrombolysis group and mechanical thrombectomy group...
April 4, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28395002/monitored-anesthesia-care-vs-intubation-for-vertebrobasilar-stroke-endovascular-therapy
#14
Ashutosh P Jadhav, Mehdi Bouslama, Amin Aghaebrahim, Leticia C Rebello, Matthew T Starr, Diogo C Haussen, Manasa Ranginani, Matthew K Whalin, Tudor G Jovin, Raul G Nogueira
Importance: No consensus regarding the ideal sedation treatment for stroke endovascular therapy has been reached, and practices remain largely based on local protocols and clinician preferences. Most studies have focused on anterior circulation strokes; therefore, little is known regarding the optimal anesthesia type for vertebrobasilar occlusion strokes. Objective: To compare clinical and angiographic outcomes between monitored anesthesia care (MAC) and general anesthesia (GA) in patients presenting with vertebrobasilar occlusion strokes...
April 10, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/28393638/vascular-territorial-segmentation-and-volumetric-blood-flow-measurement-using-dynamic-contrast-enhanced-magnetic-resonance-angiography-of-the-brain
#15
Oren Geri, Shelly I Shiran, Jonathan Roth, Moran Artzi, Liat Ben-Sira, Dafna Ben Bashat
This study proposes a method for territorial segmentation and volumetric flow rate (VFR) distribution measurement of cerebral territories based on time-resolved contrast enhanced magnetic-resonance-angiography (MRA). The method uses an iterative region-growing algorithm based on bolus-arrival-time with increased temporal resolution. Eight territories were segmented: (1) right and (2) left internal carotid arteries, including the middle cerebral artery (ICA+MCA), excluding the anterior cerebral arteries (ACA); (3) right and left ACA (R+L-ACA); (4) right and (5) left external carotid arteries (ECA); (6) right and (7) left posterior cerebral arteries (PCA); and (8) vertebrobasilar territory...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28392449/clinical-analysis-and-surgical-treatment-of-trigeminal-neuralgia-caused-by-vertebrobasilar-dolichoectasia-a-retrospective-study
#16
Shoujia Sun, Wei Jiang, Junwen Wang, Pan Gao, Xiaojing Zhang, Liwu Jiao, Weihua Liu, Kai Shu, Ting Lei
BACKGROUND: Trigeminal neuralgia (TN) caused by vertebrobasilar dolichoectasia (VBD) is rare and needs further exploration. The purpose of this study is to investigate the clinical features and surgical treatment of TN caused by VBD. METHODS: 15 patients with TN caused by VBD were included in our study. The patient data regarding clinical characteristics, neuroimaging presentations, intraoperative findings and treatment outcomes were analyzed retrospectively. Moreover, the previous relevant literature was reviewed simultaneously...
April 6, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28387631/aneurysm-wall-enhancement-on-magnetic-resonance-imaging-as-a-risk-factor-for-progression-of-unruptured-vertebrobasilar-dissecting-aneurysms-after-reconstructive-endovascular-treatment
#17
Yisen Zhang, Binbin Sui, Jian Liu, Yang Wang, Zhongbin Tian, Junfan Chen, Zhongxue Wu, Xinjian Yang
OBJECTIVE The recurrence rate of vertebrobasilar dissecting aneurysms (VBDAs) after reconstructive endovascular treatment (EVT) is relatively high. The aneurysm wall enhancement on high-resolution MRI (HRMRI) reportedly predicts an unsteady state of an intracranial aneurysm. The authors used HRMRI to investigate the relationship between wall enhancement on HRMRI and progression of VBDAs after reconstructive EVT. METHODS From January 2012 to December 2015, patients with an unruptured VBDA who underwent reconstructive EVT were enrolled in this study...
April 7, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28387624/dolichoectatic-aneurysms-of-the-vertebrobasilar-system-clinical-and-radiographic-factors-that-predict-poor-outcomes
#18
David S Xu, Michael R Levitt, M Yashar S Kalani, Leonardo Rangel-Castilla, Celene B Mulholland, Isaac J Abecassis, Ryan P Morton, John D Nerva, Adnan H Siddiqui, Elad I Levy, Robert F Spetzler, Felipe C Albuquerque, Cameron G McDougall
OBJECTIVE Fusiform dolichoectatic vertebrobasilar aneurysms are rare, challenging lesions. The natural history of these lesions and medium- and long-term patient outcomes are poorly understood. The authors sought to evaluate patient prognosis after diagnosis of fusiform dolichoectatic vertebrobasilar aneurysms and to identify clinical and radiographic predictors of neurological deterioration. METHODS The authors reviewed multiple, prospectively maintained, single-provider databases at 3 large-volume cerebrovascular centers to obtain data on patients with unruptured, fusiform, basilar artery dolichoectatic aneurysms diagnosed between January 1, 2000, and January 1, 2015...
April 7, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28387620/reoperation-and-readmission-after-clipping-of-an-unruptured-intracranial-aneurysm-a-national-surgical-quality-improvement-program-analysis
#19
Hormuzdiyar H Dasenbrock, Timothy R Smith, Robert F Rudy, William B Gormley, M Ali Aziz-Sultan, Rose Du
OBJECTIVE Although reoperation and readmission have been used as quality metrics, there are limited data evaluating the rate of, reasons for, and predictors of reoperation and readmission after microsurgical clipping of unruptured aneurysms. METHODS Adult patients who underwent craniotomy for clipping of an unruptured aneurysm electively were extracted from the prospective National Surgical Quality Improvement Program registry (2011-2014). Multivariable logistic regression and recursive partitioning analysis evaluated the independent predictors of nonroutine hospital discharge, unplanned 30-day reoperation, and readmission...
April 7, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28372948/acute-hearing-loss-caused-by-decreasing-anterior-inferior-cerebellar-arterial-perfusion-in-a-patient-with-vertebral-artery-stenosis
#20
Rintaro Fukuda, Nobukazu Miyamoto, Arisa Hayashida, Yuji Ueno, Kazuo Yamashiro, Ryota Tanaka, Nobutaka Hattori
We report a case of bilateral hearing loss caused by decreased vascular flow in the anterior inferior cerebellar artery (AICA) territory. A 74-year-old man who experienced right hearing loss 5 months ago presented with bilateral deafness and right cerebellar ataxia; however, no ischemic lesion was detected in the bilateral AICA area. After stroke treatment, hearing loss was improved. One month later, we obtained blood flow improvement in the left AICA territory on single-photon-emission computed tomography and vertebral artery stenosis on magnetic resonance angiography...
March 31, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
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