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JOURNAL ARTICLE
Ricarda Schwarz, Georg Bier, Vera Wilke, Carlo Wilke, Oliver Taubmann, Hendrik Ditt, Johann-Martin Hempel, Ulrike Ernemann, Marius Horger, Georg Gohla
(1) Background: to test the diagnostic performance of a fully convolutional neural network-based software prototype for clot detection in intracranial arteries using non-enhanced computed tomography (NECT) imaging data. (2) Methods: we retrospectively identified 85 patients with stroke imaging and one intracranial vessel occlusion. An automated clot detection prototype computed clot location, clot length, and clot volume in NECT scans. Clot detection rates were compared to the visual assessment of the hyperdense artery sign by two neuroradiologists...
September 5, 2023: Diagnostics
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JOURNAL ARTICLE
Rogier F de Best, Michel W Coppieters, Emiel van Trijffel, Annette Compter, Maarten Uyttenboogaart, Joost C Bot, Rene Castien, Jan Jm Pool, Barbara Cagnie, Gwendolyne Gm Scholten-Peeters
QUESTION: What is the diagnostic accuracy of the International Federation of Orthopaedic Manipulative Physical Therapists (IFOMPT) framework to assess the risk of vascular complications in patients seeking physiotherapy care for neck pain and/or headache? DESIGN: Cross-sectional diagnostic accuracy study. PARTICIPANTS: One hundred and fifty patients seeking physiotherapy for neck pain and/or headache in primary care. METHODS: Nineteen physiotherapists performed the index test according to the IFOMPT framework...
September 8, 2023: Journal of Physiotherapy
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JOURNAL ARTICLE
Helena Guerreiro, Fabian A Flottmann, Anna A Kyselyova, Maximilian Wagner, Caspar Brekenfeld, Bernd Eckert, Till Illies, Fritz Wodarg, Jens Fiehler, Maxim Bester
PURPOSE: Flow arrest using a balloon guide catheter (BGC) in mechanical thrombectomy (MT) due to large vessel occlusion has been associated with better outcomes. Known limitations of currently commercially available BGCs are incompatibility with large bore aspiration catheters (AC) and lack of distal flexibility. Walrus presents variable stiffness and compatibility with large bore AC. The goal of this study is to describe the first experience with Walrus in a realistic stroke simulation model...
August 29, 2023: Neuroradiology
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JOURNAL ARTICLE
Radosław Rzepliński, Mikołaj Sługocki, Michał Tomaszewski, Michał Kucewicz, Paweł Krajewski, Jerzy Małachowski, Bogdan Ciszek
The basilar bifurcation region is a common site for intracranial aneurysms, as well as it gives rise to a group of perforating arteries that supply the mesencephalon and the thalamus. Complex vascular microanatomy poses a diagnostic and therapeutic challenge for neurosurgeons, neuroradiologists and neurologists. In this paper, we present a previously unreported case of basilar tip fenestration that gave rise to five perforating arteries: the artery of Percheron and four mesencephalic arteries. Due to invaluable clinical significance, the possibility of such a variant must be considered during performing various neurovascular procedures, since e...
August 25, 2023: Folia Morphologica (Warsz)
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REVIEW
Elsa Nico, Jessica Hossa, Laura Stone McGuire, Ali Alaraj
Arteriovenous malformations (AVMs) are high-pressure, low-resistance arterial-venous shunts without intervening capillaries. Up to 60% of AVMs present with an intracranial hemorrhage; however, noninvasive neuroimaging has increasingly diagnosed incidental AVMs. AVM management depends on weighing the lifetime rupture risk against the risks of intervention. Although AVM rupture risk relies primarily on angioarchitectural features, measuring hemodynamic flow is gaining traction. Accurate understanding of AVM hemodynamic flow parameters will help endovascular neurosurgeons and interventional neuroradiologists stratify patients by rupture risk and select treatment plans...
August 17, 2023: World Neurosurgery
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JOURNAL ARTICLE
Tiago Lorga, Silvia Pizzuto, Oguzhan Coskun, Alessandro Sgreccia, Martino Cavazza, Mohammad Habibur Rahman, Georges Rodesch, Federico Di Maria, Arturo Consoli
BACKGROUND: Intracavernous carotid aneurysms (ICCAs) are rare, frequently asymptomatic, with a low rupture risk, which, however, can lead to life-threatening epistaxis. The aim of this study was to assess the effect of the treatment of asymptomatic ICCAs with flow diverters (FD) on sphenoid bone erosion or dehiscence in a selected cohort of patients. METHODS: We retrospectively reviewed all asymptomatic ICCAs with sphenoid bone erosion or dehiscence detected on cone beam CT (CBCT) and treated with FD between December 2018 and December 2022...
August 16, 2023: Journal of Neurointerventional Surgery
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REVIEW
Kester A Phillips, David O Kamson, David Schiff
PURPOSE OF REVIEW: The neuro-oncology team faces a unique challenge when assessing treatment response in patients diagnosed with glioblastoma. Magnetic resonance imaging (MRI) remains the standard imaging modality for measuring therapeutic response in both clinical practice and clinical trials. However, even for the neuroradiologist, MRI interpretations are not straightforward because of tumor heterogeneity, as evidenced by varying degrees of enhancement, infiltrating tumor patterns, cellular densities, and vasogenic edema...
July 20, 2023: Current Oncology Reports
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JOURNAL ARTICLE
Isabel Moreno Parro, David Ortiz Sánchez, Rosa García Moreno, Rubén Gómez Rioja, Remedios Frutos Martínez, Cristina Álvarez-Escolá
OBJECTIVES: Bilateral inferior petrosal sinus sampling (BIPSS) is a useful test for differential diagnosis of central vs. ectopic adrenocorticotropic hormone (ACTH)-dependent Cushing's syndrome (CS). We provide a description of the protocol used in our Center and an analysis of its diagnostic accuracy. METHODS: A retrospective study was conducted of 28 patients who underwent BIPSS combined with corticotropin-releasing hormone (CRH) stimulation. The procedure is performed in an interventional neuroradiology suite, involving a multidisciplinary team of neuroradiologists, endocrinologists and laboratory professionals...
October 2022: Adv Lab Med
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REVIEW
Joseph Reidy, Kenneth Faulder, Keryn Davidson, Timothy Harrington, Brendan Steinfort, Nazih Assaad, Mark Dexter, Alice Ma
Blister aneurysms (BA) are high-risk cerebrovascular lesions accounting for 1% of intracranial aneurysms. The defective vessel wall and broad-based neck make this clinical entity difficult to treat, with high rates of re-rupture and mortality in patients presenting with acute subarachnoid haemorrhage. Blister aneurysms pose substantial challenges for both endovascular and microsurgical management. The objective of this study is to evaluate endovascular and microsurgical outcomes in intracranial blister aneurysm management across two tertiary hospitals...
June 24, 2023: Neurosurgical Review
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JOURNAL ARTICLE
Akim Adoum, Leila Mazzolo, Augustin Lecler, Jean-Claude Sadik, Julien Savatovsky, Loïc Duron
PURPOSE: The purpose of this study was to compare the performance of three magnetic resonance imaging (MRI) reading methods in the follow-up of patients with multiple sclerosis (MS). MATERIALS AND METHODS: This retrospective study included patients with MS who underwent two brain follow-up MRI examinations with three-dimensional fluid-attenuated inversion recovery (FLAIR) sequences between September 2016 and December 2019. Two neuroradiology residents independently reviewed FLAIR images using three post-processing methods including conventional reading (CR), co-registration fusion (CF), and co-registration subtraction with color-coding (CS), while being blinded to all data but FLAIR images...
June 7, 2023: Diagnostic and Interventional Imaging
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JOURNAL ARTICLE
Vasisht Srinivasan, Jane Hall, Sarah Wahlster, Nicholas J Johnson, Kelley Branch
BACKGROUND/OBJECTIVE: Post-cardiac arrest patients are vulnerable to hypoxic-ischaemic brain injury (HIBI), but HIBI may not be identified until computed tomography (CT) scan of the brain is obtained post-resuscitation and stabilization. We aimed to evaluate the association of clinical arrest characteristics with early CT findings of HIBI to identify those at the highest risk for HIBI. METHODS: This is a retrospective analysis of out-of-hospital cardiac arrest (OHCA) patients who underwent whole-body imaging...
September 2023: Resuscitation
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JOURNAL ARTICLE
Hannah Lambing, Dawn Gano, Yi Li, Ashley M Bach, Olivia Girvan, Elizabeth E Rogers, Donna M Ferriero, A James Barkovich, Duan Xu, Charles E McCulloch, Hannah C Glass
BACKGROUND: Children with neonatal encephalopathy (NE) are at risk for basal ganglia/thalamus (BG/T) and watershed patterns of brain injury. Children with BG/T injury are at high risk for motor impairment in infancy, but the predictive validity of a published rating scale for outcome at age four years is not known. We examined a cohort of children with NE and magnetic resonance imaging (MRI) to examine the relationship between BG/T injury and severity of cerebral palsy (CP) in childhood...
July 2023: Pediatric Neurology
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Vijay Yadav, Ratna Mani Gajurel, Chandra Mani Poudel, Paras Thapa, Manju Sharma, Suraj Shrestha
BACKGROUND: Contemporaneous acute myocardial infarction (AMI) and acute ischemic stroke (AIS), termed cardio-cerebral infarction (CCI), is a rare medical emergency. The effectual management of this situation is exigent since early management of one condition will inevitably delay the other. Case Presentation . A 60-year-old woman presented to our hospital with concurrent AMI of the inferior left ventricular wall, complicated by cardiogenic shock and transient complete heart block, and AIS of more than 4...
2023: Case Reports in Cardiology
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JOURNAL ARTICLE
Tyler J Harder, Owen P Leary, Zhihui Yang, Brandon Lucke-Wold, David D Liu, Megan E H Still, Miao Zhang, Sharon D Yeatts, Jason W Allen, David Wright, Derek Merck, Lisa H Merck
Traumatic brain injury (TBI) is a leading cause of death and disability in the United States. Early triage and treatment after TBI have been shown to improve outcome. However, identifying patients at risk for increased intracranial pressure (ICP) via baseline computed tomography (CT) has not previously been validated in a prospective dataset. We hypothesized that acute CT findings of elevated ICP, combined with direct ICP measurement, hold prognostic value in terms of 6-month patient outcome after TBI. Data were obtained from the Progesterone for Traumatic Brain Injury, Experimental Clinical Treatment (ProTECTIII) multicenter clinical trial...
April 21, 2023: Journal of Neurotrauma
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JOURNAL ARTICLE
Chika Offiah, Sean Tierney, Bridget Egan, Ronán D Collins, Daniel J Ryan, Allan J McCarthy, Deirdre R Smith, James Mahon, Emily Boyle, Holly Delaney, Rory O 'Donohoe, Alison Hurley, Richard A Walsh, Sinead M Murphy, Petya Bogdanova-Mihaylova, Sean O 'Dowd, Mark J Kelly, Taha Omer, Tara Coughlan, Desmond O 'Neill, Mary Martin, Stephen J X Murphy, Dominick J H McCabe
BACKGROUND/AIMS: Data are limited on the frequency of 'consensus decisions' between sub-specialists attending a neurovascular multidisciplinary meeting (MDM) regarding management of patients with extracranial carotid/vertebral stenoses and post-MDM 'adherence' to such advice. METHODS: This prospective audit/quality improvement project collated prospectively-recorded data from a weekly Neurovascular/Stroke Centre MDM documenting the proportion of extracranial carotid/vertebral stenosis patients in whom 'consensus management decisions' were reached by neurologists, vascular surgeons, stroke physicians-geriatricians and neuroradiologists...
April 21, 2023: Irish Journal of Medical Science
#36
REVIEW
Johanna Maria Ospel, Manon Kappelhof, Aravind Ganesh, David F Kallmes, Waleed Brinjikji, Mayank Goyal
Symptomatic non-stenotic carotid plaques (SyNC) are an under-researched and under-recognized source of stroke. Various imaging markers of non-stenotic carotid plaques that are associated with stroke risk have been identified, but these causal relationships need to be confirmed in additional prospective studies. Currently, there exists neither a standardized SyNC definition nor a dedicated set of imaging protocols, although researchers have started to address these shortcomings. Moreover, many neuroradiologists are still unaware of the condition, and hence do not comment on high-risk plaque features other than stenosis in their reports...
April 17, 2023: Journal of Neurointerventional Surgery
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JOURNAL ARTICLE
Francesco Briganti, Mario Tortora, Giovanni Loiudice, Margherita Tarantino, Amedeo Guida, Giuseppe Buono, Mariano Marseglia, Ferdinando Caranci, Fabio Tortora
Successful endovascular treatment by stenting of intracranial aneurysms requires proper placement of the device and appropriate choice of its diameter and length. To date, several methods have been employed to achieve these goals, although each has inherent critical issues. Recently developed stent planning software applications can be used to assist interventional neuroradiologists. Based on a 3D-DSA image acquired before stenting, these applications simulate and visualize the final placement of the deployed stent...
April 7, 2023: La Radiologia Medica
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JOURNAL ARTICLE
Piers Klein, Xiaochuan Huo, Yimin Chen, Mohamad Abdalkader, Zhongming Qiu, Simon Nagel, Jean Raymond, Liping Liu, James E Siegler, Daniel Strbian, Thalia S Field, Shadi Yaghi, Muhammad M Qureshi, Jelle Demeestere, Volker Puetz, Anne Berberich, Patrik Michel, Urs Fischer, Johannes Kaesmacher, Hiroshi Yamagami, Fana Alemseged, Georgios Tsivgoulis, Wouter J Schonewille, Wei Hu, Xinfeng Liu, Chuanhui Li, Xunming Ji, Brian Drumm, Soma Banerjee, Simona Sacco, Else C Sandset, Espen Saxhaug Kristoffersen, Peter Slade, Robert Mikulik, Michele Romoli, Francesco Diana, Kailash Krishnan, Permesh Dhillon, Jin Soo Lee, Ekkehard Kasper, Hormuzdiyar Dasenbrock, Mai Duy Ton, Rytis Masiliūnas, Anita Ante Arsovska, João Pedro Marto, Adam A Dmytriw, Robert W Regenhardt, Gisele Sampaio Silva, Timo Siepmann, Dapeng Sun, Hongfei Sang, Jose Danilo Diestro, Pengfei Yang, Mahmoud H Mohammaden, Fengli Li, Hesham E Masoud, Alice Ma, Raynald, Aravind Ganesh, Jianmin Liu, Lukas Meyer, Diederik W J Dippel, Götz Thomalla, Mark Parsons, Adnan I Qureshi, Mayank Goyal, Albert J Yoo, Bertrand Lapergue, Osama O Zaidat, Hui-Sheng Chen, Bruce C V Campbell, Tudor G Jovin, Raul G Nogueira, Zhongrong Miao, Gustavo Saposnik, Thanh N Nguyen
BACKGROUND: The proper imaging modality for use in the selection of patients for endovascular thrombectomy (EVT) presenting in the late window remains controversial, despite current guidelines advocating the use of advanced imaging in this population. We sought to understand if clinicians with different specialty training differ in their approach to patient selection for EVT in the late time window. METHODS: We conducted an international survey of stroke and neurointerventional clinicians between January and May 2022 with questions focusing on imaging and treatment decisions of large vessel occlusion (LVO) patients presenting in the late window...
April 3, 2023: Clinical Neuroradiology
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JOURNAL ARTICLE
Vladimir Ivanovic, Kenneth Broadhead, Ryan Beck, Yu-Ming Chang, Alireza Paydar, Garrick Biddle, Lotfi Hacein-Bey, Lihong Qi
BACKGROUND. Numerous studies have explored factors associated with diagnostic errors in neuroradiology; however, large-scale multivariable analyses are lacking. OBJECTIVE. The purpose of this study was to evaluate associations of interpretation time, shift volume, care setting, day of week, and trainee participation with diagnostic errors by neuroradiologists at a large academic medical center. METHODS. This retrospective case-control study using a large tertiary-care academic medical center's neuroradiology quality assurance database evaluated CT and MRI examinations for which neuroradiologists had assigned RADPEER scores...
July 5, 2023: AJR. American Journal of Roentgenology
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JOURNAL ARTICLE
Ze'ev Itsekzon-Hayosh, Ronit Agid
AIM: Neurointervention (NIR) is a relatively new developing filed of medicine. Diversity and inclusion in various medical fields has made a significant progress. However, many surgical and interventional fields are still lagging in this respect. The aim of this study was to evaluate the degree of diversity and inclusion amongst neurointerventionalists in Canada. MATERIALS AND METHODS: A survey was completed in June 2022 by each neurointerventional division in Canada...
March 27, 2023: Interventional Neuroradiology
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