1
|
Shin SM, Lee JY, Nam Hun H, Choo SW, Jeon YP, Chung J, Ko JH, Koo HW, Shin DS, Lee MR, Oh JS. Efficacy and safety of a new torque-controlled angiographic catheter in cerebral angiography: A multicenter, randomized, open-label trial. Heliyon 2024; 10:e35205. [PMID: 39157386 PMCID: PMC11328082 DOI: 10.1016/j.heliyon.2024.e35205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 07/23/2024] [Accepted: 07/24/2024] [Indexed: 08/20/2024] Open
Abstract
Objective We aimed to examine the effectiveness and safety of a novel torque-controlled catheter for cerebral angiography. Methods A total of 417 patients who underwent routine transfemoral cerebral angiography were enrolled in a randomized controlled study to compare the new torque-controlled and control group catheters. Device success was assessed on parameters such as the assessment of the common carotid artery, device rotation force, and success rate with the crossover group after the failed procedure. Four neurointerventionalists investigated the degree of satisfaction of using the new device. Superiority and non-inferiority tests of satisfaction scores were estimated for the new torque-controlled and the control group catheters. Results The new torque-controlled catheter showed improved performance in terms of technical device success (92.79 vs. 98.09 %, P = 0.010), crossover after technical device failure (0 vs. 86.67 %, P = 0.004), and common carotid artery access (92.79 vs. 98.56 %, P = 0.004). The flexibility and rotational force of the new torque-controlled catheter were higher than those of the control group catheters (75.48 vs. 100 %, P < 0.001). No marked adverse cerebrovascular accidents or vessel damage occurred in either group during the procedure. The differences between the two groups in terms of the device rotational force and operator satisfaction were 1.836 (1.765-1.907) and 2.092 (2.000-2.183), respectively. The new torque-controlled catheter showed superior device rotational force satisfaction, operator satisfaction, and manufacturer satisfaction, with statistical significance. Conclusion The new torque-controlled catheter was effective, safe, and convenient compared to the control group catheters for diagnostic cerebrovascular angiography.
Collapse
Affiliation(s)
- Seung Min Shin
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, College of Medicine, Soonchunhyang University, Cheonan, Republic of Korea
| | - Ji Young Lee
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, College of Medicine, Soonchunhyang University, Cheonan, Republic of Korea
| | - Heo Nam Hun
- Clinical Trial Center, Soonchunhyang University Cheonan Hospital, Cheonan, Republic of Korea
| | | | | | - Jaewoo Chung
- Department of Neurosurgery, Dankook University Hospital, College of Medicine, Dankook University, Cheonan, Republic of Korea
| | - Jung Ho Ko
- Department of Neurosurgery, Dankook University Hospital, College of Medicine, Dankook University, Cheonan, Republic of Korea
| | - Hae-Won Koo
- Department of Neurosurgery, Ilsan Paik Hospital, College of Medicine, Inje University, Goyang, Republic of Korea
| | - Dong Seoung Shin
- Department of Neurosurgery, Soonchunhyang University Bucheon Hospital, College of Medicine, Soonchunhyang University, Bucheon, Republic of Korea
| | - Man Ryul Lee
- Soonchunhyang, Institute of Medi-Bio Science (SIMS), Soonchunhyang University, Cheonan, Republic of Korea
| | - Jae Sang Oh
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, College of Medicine, Soonchunhyang University, Cheonan, Republic of Korea
- Department of Neurosurgery, Uijeonbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Uijeonbu, Republic of Korea
| |
Collapse
|
2
|
Alghamdi I, Dmytriw AA, Amirabadi A, Lebarron S, Rea V, Parra-Fariñas C, Muthusami P. Clinical and subclinical microemboli following neuroangiography in children. J Neurointerv Surg 2024; 16:934-938. [PMID: 37562819 DOI: 10.1136/jnis-2023-020686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 07/27/2023] [Indexed: 08/12/2023]
Abstract
BACKGROUND To assess the frequency, imaging appearances, and risk factors of brain microemboli following pediatric neuroangiography, as assessed by early diffusion-weighted MRI imaging (DWI). METHODS This single-center, retrospective analysis investigated early DWI post-pediatric neuroangiography. Patients aged 0-18 years who had diagnostic neuroangiography and DWI within a week postprocedure were included. Data on clinical and procedural parameters and MRI findings were recorded. Univariate and multivariate analyses were performed on the following risk factors: age, weight, vasculopathy, antiplatelet drug use, access type, intraprocedural heparin, procedure duration, neck arteries catheterized, and angiographic runs. A p-value<0.05 indicated statistical significance. RESULTS Eighty-two children were included (40.2% female), mean age 10.1±4.5 years (range: 7 months-17 years). There were no intraprocedural thromboembolic complications recognized. DWI positivity was seen following 3.6% (3/82) procedures: two with transient symptoms, and one instance of silent microemboli. There were no territorial infarcts or clinical stroke. Children with underlying vasculopathy had a higher risk of microemboli from angiography than children without vasculopathy (OR 31.6, p=0.02), and the OR of microemboli following transradial angiography was 79.1 (p=0.005) as compared with transfemoral angiography. Univariate and multivariate analysis showed a significant association between microemboli and number of angiographic runs (p=0.004). Follow-up MRI in all three patients showed no residual abnormal signal. CONCLUSIONS Cerebral microemboli are unusual following uncomplicated neuroangiography in children. However, in the presence of underlying vasculopathy and with transradial technique, the incidence approaches that reported in the adult literature. An increased association with the number of angiographic runs is an important and controllable factor.
Collapse
Affiliation(s)
- Ibrahim Alghamdi
- Divisions of Neuroradiology & Neurointervention, Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
| | - Adam A Dmytriw
- Divisions of Neuroradiology & Neurointervention, Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
| | - Afsaneh Amirabadi
- Divisions of Neuroradiology & Neurointervention, Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
| | - Samantha Lebarron
- Divisions of Neuroradiology & Neurointervention, Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
| | - Vanessa Rea
- Divisions of Neuroradiology & Neurointervention, Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
| | - Carmen Parra-Fariñas
- Divisions of Neuroradiology & Neurointervention, Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
| | - Prakash Muthusami
- Divisions of Neuroradiology & Neurointervention, Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
| |
Collapse
|
3
|
Pradhan A, Mut F, Sosale M, Cebral J. Flow reduction due to arterial catheterization during stroke treatment - A computational study using a distributed compartment model. INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN BIOMEDICAL ENGINEERING 2024:e3853. [PMID: 39090842 DOI: 10.1002/cnm.3853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 06/07/2024] [Accepted: 07/12/2024] [Indexed: 08/04/2024]
Abstract
The effectiveness of various stroke treatments depends on the anatomical variability of the cerebral vasculature, particularly the collateral blood vessel network. Collaterals at the level of the Circle of Willis and distal collaterals, such as the leptomeningeal arteries, serve as alternative avenues of flow when the primary pathway is obstructed during an ischemic stroke. Stroke treatment typically involves catheterization of the primary pathway, and the potential risk of further flow reduction to the affected brain area during this treatment has not been previously investigated. To address this clinical question, we derived the lumped parameters for catheterized blood vessels and implemented a corresponding distributed compartment (0D) model. This 0D model was validated against an experimental model and benchmark test cases solved using a 1D model. Additionally, we compared various off-center catheter trajectories modeled using a 3D solver to this 0D model. The differences between them were minimal, validating the simplifying assumption of the central catheter placement in the 0D model. The 0D model was then used to simulate blood flows in realistic cerebral arterial networks with different collateralization characteristics. Ischemic strokes were modeled by occlusion of the M1 segment of the middle cerebral artery in these networks. Catheters of different diameters were inserted up to the obstructed segment and flow alterations in the network were calculated. Results showed up to 45% maximum blood flow reduction in the affected brain region. These findings suggest that catheterization during stroke treatment may have a further detrimental effect for some patients with poor collateralization.
Collapse
Affiliation(s)
- Aseem Pradhan
- Bioengineering Department, George Mason University, Fairfax, Virginia, USA
| | - Fernando Mut
- Bioengineering Department, George Mason University, Fairfax, Virginia, USA
| | - Medhini Sosale
- Bioengineering Department, George Mason University, Fairfax, Virginia, USA
| | - Juan Cebral
- Bioengineering Department, George Mason University, Fairfax, Virginia, USA
| |
Collapse
|
4
|
Pradhan AM, Mut F, Cebral JR. A one-dimensional computational model for blood flow in an elastic blood vessel with a rigid catheter. INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN BIOMEDICAL ENGINEERING 2024; 40:e3834. [PMID: 38736046 DOI: 10.1002/cnm.3834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 04/23/2024] [Accepted: 04/28/2024] [Indexed: 05/14/2024]
Abstract
Strokes are one of the leading causes of death in the United States. Stroke treatment involves removal or dissolution of the obstruction (usually a clot) in the blocked artery by catheter insertion. A computer simulation to systematically plan such patient-specific treatments needs a network of about 105 blood vessels including collaterals. The existing computational fluid dynamic (CFD) solvers are not employed for stroke treatment planning as they are incapable of providing solutions for such big arterial trees in a reasonable amount of time. This work presents a novel one-dimensional mathematical formulation for blood flow modeling in an elastic blood vessel with a centrally placed rigid catheter. The governing equations are first-order hyperbolic partial differential equations, and the hypergeometric function needs to be computed to obtain the characteristic system of these hyperbolic equations. We employed the Discontinuous Galerkin method to solve the hyperbolic system and validated the implementation by comparing it against a well-established 3D CFD solver using idealized vessels and a realistic truncated arterial network. The results showed clinically insignificant differences in steady flow cases, with overall variations between 1D and 3D models remaining below 10%. Additionally, the solver accurately captured wave reflection phenomena at domain discontinuities in unsteady cases. A primary advantage of this model over 3D solvers is its ease in obtaining a discretized geometry of complex vasculatures with multiple arterial branches. Thus, the 1D computational model offers good accuracy and applicability in simulating complex vasculatures, demonstrating promising potential for investigating patient-specific endovascular interventions in strokes.
Collapse
Affiliation(s)
| | - Fernando Mut
- Bioengineering Department, George Mason University, Fairfax, Virginia, USA
| | - Juan Raul Cebral
- Bioengineering Department, George Mason University, Fairfax, Virginia, USA
| |
Collapse
|
5
|
Lehman LL, Wu C, Kaseka ML, Muthusami P, Armstrong D, Dirks P, Shroff M, Moharir M, Macgregor D, deVeber G, Dlamini N. Magnetic Resonance Angiography Alone Is Insufficient for Diagnosis and Surgical Planning in Children With Moyamoya. Pediatr Neurol 2024; 159:1-3. [PMID: 39089182 DOI: 10.1016/j.pediatrneurol.2024.06.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 06/07/2024] [Accepted: 06/16/2024] [Indexed: 08/03/2024]
Abstract
BACKGROUND The gold standard for evaluation of the severity of moyamoya vasculopathy is the Suzuki grade determined with cerebral catheter angiography (CA). With greater use of magnetic resonance angiography (MRA) it is important to understand if MRA is truly comparable to CA. METHODS Children with moyamoya were evaluated using the Suzuki score for CA and the modified MRA six-stage Suzuki score to describe the angiographic findings in moyamoya from initial narrowing of the distal internal carotid artery to the "puff of smoke" appearance of the lenticulostriate collaterals and finally to the disappearance of this network of collaterals. Using Cohen kappa we compared Suzuki grade based on CA with MRA in the same patients. RESULTS A total of 27 children with moyamoya were reviewed. We calculated a weighted Cohen kappa of 0.49 (P < 0.0001), which is a moderate correlation. CONCLUSIONS We suggest caution in the reliance on MRA for the diagnosis and evaluation of severity of moyamoya in children.
Collapse
Affiliation(s)
- Laura L Lehman
- Department of Neurology, Boston Children's Hospital, Boston, Massachusetts.
| | - Clara Wu
- Department of Neurology, Boston Children's Hospital, Boston, Massachusetts
| | | | - Prakash Muthusami
- Department of Diagnostic Imaging, Hospital for Sick Kids, Toronto, Ontario
| | - Derek Armstrong
- Department of Diagnostic Imaging, Hospital for Sick Kids, Toronto, Ontario
| | - Peter Dirks
- Department of Neurosurgery, Hospital for Sick Kids, Toronto, Ontario
| | - Manohar Shroff
- Department of Diagnostic Imaging, Hospital for Sick Kids, Toronto, Ontario
| | | | - Daune Macgregor
- Division of Neurology, Hospital for Sick Children, Toronto, Ontario
| | | | - Nomazulu Dlamini
- Division of Neurology, Hospital for Sick Children, Toronto, Ontario
| |
Collapse
|
6
|
Pereira AC, Alakbarzade V, Shribman S, Crossingham G, Moullaali T, Werring D. Stroke as a career option for neurologists. Pract Neurol 2024:pn-2024-004111. [PMID: 38908861 DOI: 10.1136/pn-2024-004111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/04/2024] [Indexed: 06/24/2024]
Abstract
Stroke is one of the most common acute neurological disorders and a leading cause of disability worldwide. Evidence-based treatments over the last two decades have driven a revolution in the clinical management and design of stroke services. We need a highly skilled, multidisciplinary workforce that includes neurologists as core members to deliver modern stroke care. In the UK, the dedicated subspecialty training programme for stroke medicine has recently been integrated into the neurology curriculum. All neurologists will be trained to contribute to each aspect of the stroke care pathway. We discuss how training in stroke medicine is evolving for neurologists and the opportunities and challenges around practising stroke medicine in the UK and beyond.
Collapse
Affiliation(s)
- Anthony C Pereira
- Department of Neurology, St George's University Hospitals NHS Foundation Trust, London, UK
| | - Vafa Alakbarzade
- Department of Neurology, St George's University Hospitals NHS Foundation Trust, London, UK
| | - Samuel Shribman
- Department of Neurology, St George's University Hospitals NHS Foundation Trust, London, UK
| | - Ginette Crossingham
- Department of Neurology, University Hospitals Plymouth NHS Trust, Plymouth, UK
| | - Tom Moullaali
- Centre for Clinical Brain Sciences, University of Edinburgh Division of Medical and Radiological Sciences, Edinburgh, UK
| | - David Werring
- Stroke Research Group, UCL Queen Square Institute of Neurology, London, UK
| |
Collapse
|
7
|
De Sousa JMB, Rios GM, Fonseca JRF, Alves JDDDC. Cerebral thromboembolic complications during cerebral angiography and their risk factors in different subgroups: Analysis of 2,457 procedures. Neurol Sci 2024; 45:2759-2768. [PMID: 38217787 DOI: 10.1007/s10072-024-07302-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Accepted: 01/02/2024] [Indexed: 01/15/2024]
Abstract
PURPOSE Diagnostic cerebral digital subtraction angiography (DSA) is an invasive examination that involves catheterization of the major supra-aortic arterial trunks and evaluation of intracranial vessels for diagnostic purposes. Although considered the gold standard method for investigating cerebrovascular diseases, DSA carries measurable and potentially serious complication rates. This report describes the frequency of neurological and non-neurological complications of DSA performed in five hospitals in the state of São Paulo, Brazil, and analyzes them in different disease subgroups. It has a special focus on thromboembolic cerebral complications. METHODS We retrospectively reviewed clinical records of all adult patients who underwent DSAs between January 2019 and December 2022. Demographic variables, DSA reports, CT/MRI reports, and clinical follow-up notes were reviewed. RESULTS Twenty-four patients experienced some type of complication among 2,457 diagnostic DSAs (0.97%). Thromboembolic complications were recorded in 9 patients (0.36%), and access site hematomas larger than 5 cm were registered in six patients (0.24%). There was a statistical trend for thromboembolic complications in patients with cervical and/or intracranial atherosclerosis (p = 0.07), but age was not associated with them (p = 0.93). Patients who received heparin had lower rates of embolic complications than those who did not receive it, but there was no statistically significant difference (p = 0.17). Intravenous administration of heparin showed a trend toward significance with groin hematoma (p = 0.10). CONCLUSION Diagnostic catheter DSAs have low complication rates.
Collapse
Affiliation(s)
- Jorge Murilo Barbosa De Sousa
- Clínica NeuroEV, Rua Botucatu, 591, Sala 104, São Paulo, SP, 04023-062, Brazil.
- Conjunto Hospitalar Do Mandaqui, São Paulo, SP, Brazil.
- Hospital IGESP, São Paulo, SP, Brazil.
- Hospital Villa Lobos Rede D'Or, São Paulo, SP, Brazil.
- Fundação Instituto de Pesquisa e Estudo de Diagnóstico por Imagem - FIDI, São Paulo, SP, Brazil.
| | - Gleyson Moraes Rios
- Clínica NeuroEV, Rua Botucatu, 591, Sala 104, São Paulo, SP, 04023-062, Brazil
- Fundação Instituto de Pesquisa e Estudo de Diagnóstico por Imagem - FIDI, São Paulo, SP, Brazil
- Hospital Galileo, Valinhos, SP, Brazil
- Hospital Unimed Piracicaba, Piracicaba, SP, Brazil
| | - José Roberto Falco Fonseca
- Clínica NeuroEV, Rua Botucatu, 591, Sala 104, São Paulo, SP, 04023-062, Brazil
- Hospital IGESP, São Paulo, SP, Brazil
- Fundação Instituto de Pesquisa e Estudo de Diagnóstico por Imagem - FIDI, São Paulo, SP, Brazil
| | - João de Deus da Costa Alves
- Clínica NeuroEV, Rua Botucatu, 591, Sala 104, São Paulo, SP, 04023-062, Brazil
- Conjunto Hospitalar Do Mandaqui, São Paulo, SP, Brazil
- Hospital IGESP, São Paulo, SP, Brazil
- Hospital Villa Lobos Rede D'Or, São Paulo, SP, Brazil
- Hospital Galileo, Valinhos, SP, Brazil
- Hospital Unimed Piracicaba, Piracicaba, SP, Brazil
| |
Collapse
|
8
|
Hakim M, Kawnayn G, Hassan MS, Uddin MN, Hasan M, Huq MR. Transcranial Doppler in the Detection of Cerebral Vasospasm After Subarachnoid Hemorrhage. Cureus 2024; 16:e61569. [PMID: 38962631 PMCID: PMC11221191 DOI: 10.7759/cureus.61569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/03/2024] [Indexed: 07/05/2024] Open
Abstract
Background Transcranial Doppler (TCD) is a simple, noninvasive, nonionizing, portable technique but not widely practiced to detect cerebral vasospasm after subarachnoid hemorrhage (SAH). Objective The aim of this study was to assess the performance of TCD in the detection of cerebral vasospasm in patients with SAH considering CT angiography (CTA) as a gold standard. Methods and material This cross-sectional study included 50 patients with acute SAH admitted to the National Institute of Neurosciences & Hospital (NINS & H), Dhaka, Bangladesh, from February to June 2021. The neurological status, severity of SAH, and initial CT findings were recorded. All patients were screened for cerebral vasospasm with TCD on the 4th, 7th, 10th, and 14th days after the event. Screening of cerebral vasospasm by CTA was done on the 14th day of the event or earlier if TCD suggested vasospasm. Results The mean age of the participants was 51.4 ±13.4 years (mean ± SD), and females were predominant (N=29, 58%). CTA detected cerebral vasospasm in 18 (36%) participants, but TCD could detect it in only 13 (26%) cases. Among the participants who had no vasospasm by CTA, all but one were also found to have no vasospasm by TCD. The agreement between TCD and CTA in detecting cerebral vasospasm was significant (p<0.001, κ=0.726). TCD shows good specificity (96.9%) and positive predictive value (92.8%), but sensitivity (72.2%) and negative predictive value (81.6%) were comparatively lower. Overall, the diagnostic accuracy of TCD in detecting cerebral vasospasm was 88%. Conclusions Although compared to CTA, TCD is a highly specific but less sensitive tool in detecting vasospasm, TCD remains a reliable screening tool for detecting vasospasm following SAH.
Collapse
Affiliation(s)
- Maliha Hakim
- Neurology, National Institute of Neurosciences and Hospital, Dhaka, BGD
| | | | | | | | - Mashfiqul Hasan
- Endocrinology, Diabetes, and Metabolism, National Institute of Neurosciences and Hospital, Dhaka, BGD
| | | |
Collapse
|
9
|
Lauzier DC, Srienc AI, Vellimana AK, Dacey Jr RG, Zipfel GJ. Peripheral macrophages in the development and progression of structural cerebrovascular pathologies. J Cereb Blood Flow Metab 2024; 44:169-191. [PMID: 38000039 PMCID: PMC10993883 DOI: 10.1177/0271678x231217001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 09/10/2023] [Accepted: 09/15/2023] [Indexed: 11/26/2023]
Abstract
The human cerebrovascular system is responsible for maintaining neural function through oxygenation, nutrient supply, filtration of toxins, and additional specialized tasks. While the cerebrovascular system has resilience imparted by elaborate redundant collateral circulation from supportive tertiary structures, it is not infallible, and is susceptible to developing structural vascular abnormalities. The causes of this class of structural cerebrovascular diseases can be broadly categorized as 1) intrinsic developmental diseases resulting from genetic or other underlying aberrations (arteriovenous malformations and cavernous malformations) or 2) extrinsic acquired diseases that cause compensatory mechanisms to drive vascular remodeling (aneurysms and arteriovenous fistulae). Cerebrovascular diseases of both types pose significant risks to patients, in some cases leading to death or disability. The drivers of such diseases are extensive, yet inflammation is intimately tied to all of their progressions. Central to this inflammatory hypothesis is the role of peripheral macrophages; targeting this critical cell type may lead to diagnostic and therapeutic advancement in this area. Here, we comprehensively review the role that peripheral macrophages play in cerebrovascular pathogenesis, provide a schema through which macrophage behavior can be understood in cerebrovascular pathologies, and describe emerging diagnostic and therapeutic avenues in this area.
Collapse
Affiliation(s)
- David C Lauzier
- Department of Neurological Surgery, Washington University School of Medicine, St. Louis, MO, USA
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO, USA
| | - Anja I Srienc
- Department of Neurological Surgery, Washington University School of Medicine, St. Louis, MO, USA
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO, USA
| | - Ananth K Vellimana
- Department of Neurological Surgery, Washington University School of Medicine, St. Louis, MO, USA
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO, USA
- Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA
| | - Ralph G Dacey Jr
- Department of Neurological Surgery, Washington University School of Medicine, St. Louis, MO, USA
| | - Gregory J Zipfel
- Department of Neurological Surgery, Washington University School of Medicine, St. Louis, MO, USA
- Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA
| |
Collapse
|
10
|
Goutnik M, Nguyen A, Fleeting C, Patel A, Lucke-Wold B, Laurent D, Wahbeh T, Amini S, Al Saiegh F, Koch M, Hoh B, Chalouhi N. Assessment of Blood Loss during Neuroendovascular Procedures. J Clin Med 2024; 13:677. [PMID: 38337371 PMCID: PMC10856135 DOI: 10.3390/jcm13030677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 12/31/2023] [Accepted: 01/23/2024] [Indexed: 02/12/2024] Open
Abstract
(1) Background: Neuroendovascular procedures have generally been considered to have minor or inconsequential blood loss. No study, however, has investigated this question. The purpose of this study is to quantify the blood loss associated with neuroendovascular procedures and identify predictors of blood loss, using hemoglobin change as a surrogate for blood loss. (2) Methods: A retrospective review of 200 consecutive endovascular procedures (diagnostic and therapeutic) at our institution from January 2020 to October 2020 was performed. Patients had to have pre- and post-operative hematocrit and hemoglobin levels recorded within 48 h of the procedure (with no intervening surgeries) for inclusion. (3) Results: The mean age of our cohort was 60.1 years and the male representation was 52.5%. The mean pre-operative hemoglobin/hematocrit was significantly lower among females compared to males (12.1/36.2 vs. 13.0/38.5, p = 0.003, p = 0.009). The mean hemoglobin decrease was 0.5 g/dL for diagnostic angiograms compared to 1.2 g/dL for endovascular interventions (p < 0.0001), and 1.0 g/dL for all procedures combined. In a multivariate linear regression analysis, pre-operative antiplatelet/anticoagulant use was associated with a statistically significant decrease in hemoglobin. (4) Conclusions: Our data support that blood loss from diagnostic angiograms is marginal. Blood loss in endovascular interventions, however, tends to be higher. Pre-operative blood antiplatelet/anticoagulant use and increasing age appear to increase bleeding risk and may require closer patient monitoring.
Collapse
Affiliation(s)
- Michael Goutnik
- Department of Neurosurgery, University of Florida, Gainesville, FL 32601, USA; (M.G.); (A.N.); (C.F.); (A.P.); (T.W.)
| | - Andrew Nguyen
- Department of Neurosurgery, University of Florida, Gainesville, FL 32601, USA; (M.G.); (A.N.); (C.F.); (A.P.); (T.W.)
| | - Chance Fleeting
- Department of Neurosurgery, University of Florida, Gainesville, FL 32601, USA; (M.G.); (A.N.); (C.F.); (A.P.); (T.W.)
| | - Aashay Patel
- Department of Neurosurgery, University of Florida, Gainesville, FL 32601, USA; (M.G.); (A.N.); (C.F.); (A.P.); (T.W.)
| | - Brandon Lucke-Wold
- Department of Neurosurgery, University of Florida, Gainesville, FL 32601, USA; (M.G.); (A.N.); (C.F.); (A.P.); (T.W.)
| | - Dimitri Laurent
- Department of Neurosurgery, University of Florida, Gainesville, FL 32601, USA; (M.G.); (A.N.); (C.F.); (A.P.); (T.W.)
| | - Tamara Wahbeh
- Department of Neurosurgery, University of Florida, Gainesville, FL 32601, USA; (M.G.); (A.N.); (C.F.); (A.P.); (T.W.)
| | - Shawna Amini
- Department of Neurosurgery, University of Florida, Gainesville, FL 32601, USA; (M.G.); (A.N.); (C.F.); (A.P.); (T.W.)
| | - Fadi Al Saiegh
- Department of Neurosurgery, University of Texas Health Science Center, San Antonio, TX 78229, USA
| | - Matthew Koch
- Department of Neurosurgery, University of Florida, Gainesville, FL 32601, USA; (M.G.); (A.N.); (C.F.); (A.P.); (T.W.)
| | - Brian Hoh
- Department of Neurosurgery, University of Florida, Gainesville, FL 32601, USA; (M.G.); (A.N.); (C.F.); (A.P.); (T.W.)
| | - Nohra Chalouhi
- Department of Neurosurgery, University of Florida, Gainesville, FL 32601, USA; (M.G.); (A.N.); (C.F.); (A.P.); (T.W.)
| |
Collapse
|
11
|
Suzuki T, Hasegawa H, Okamoto K, Shibuya K, Takahashi H, Fujiwara H, Oishi M, Fujii Y. Superior Visualization of Neovascularization with Silent Magnetic Resonance Angiography Compared to Time-of-Flight Magnetic Resonance Angiography After Bypass Surgery in Moyamoya Disease. World Neurosurg 2023; 175:e1292-e1299. [PMID: 37149090 DOI: 10.1016/j.wneu.2023.04.119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 04/25/2023] [Accepted: 04/26/2023] [Indexed: 05/08/2023]
Abstract
OBJECTIVE The evaluation of postsurgical neoangiogenesis in patients with moyamoya disease (MMD) is crucial for appropriate patient management. This study aimed to assess the visualization of neovascularization after bypass surgery using noncontrast-enhanced silent magnetic resonance angiography (MRA) with ultrashort echo time and arterial spin labeling. METHODS After bypass surgery, 13 patients with MMD were followed up for >6 months between September 2019 and November 2022. They underwent silent MRA in the same session as time-of-flight magnetic resonance angiography (TOF-MRA) and digital subtraction angiography (DSA). Two observers independently rated the visualization of neovascularization in both types of MRA from 1 (not visible) to 4 (nearly equal to DSA), with reference to DSA images as the standard. RESULTS The mean scores were significantly higher for silent MRA compared with TOF-MRA (3.81 ± 0.48 and 1.92 ± 0.70, respectively) (P < 0.01). The intermodality agreements were 0.83 and 0.71 for silent MRA and TOF-MRA, respectively. TOF-MRA depicted the donor artery and recipient cortical artery after direct bypass surgery, although fine neovascularization developed after indirect bypass surgery was poorly visualized. Silent MRA could reveal the developed bypass flow signal and perfused middle cerebral artery territory, which was almost equal to the DSA images. CONCLUSIONS Silent MRA achieves better visualization of postsurgical revascularization in patients with MMD than TOF-MRA. Moreover, it may have the potential to provide visualization of the developed bypass flow equivalent to DSA.
Collapse
Affiliation(s)
- Tomoaki Suzuki
- Department of Neurosurgery, Brain Research Institute, Niigata University, Niigata, Japan.
| | - Hitoshi Hasegawa
- Department of Neurosurgery, Brain Research Institute, Niigata University, Niigata, Japan
| | - Kouichirou Okamoto
- Department of Translational Research, Brain Research Institute, Niigata University, Niigata, Japan
| | - Kohei Shibuya
- Department of Neurosurgery, Brain Research Institute, Niigata University, Niigata, Japan
| | - Haruhiko Takahashi
- Department of Neurosurgery, Brain Research Institute, Niigata University, Niigata, Japan
| | - Hidemoto Fujiwara
- Department of Neurosurgery, Brain Research Institute, Niigata University, Niigata, Japan
| | - Makoto Oishi
- Department of Neurosurgery, Brain Research Institute, Niigata University, Niigata, Japan
| | - Yukihiko Fujii
- Department of Neurosurgery, Brain Research Institute, Niigata University, Niigata, Japan
| |
Collapse
|
12
|
Salem MM, Ravindran K, Hoang AN, Doron O, Esparza R, Raper D, Jankowitz BT, Tanweer O, Lopes D, Langer D, Nossek E, Burkhardt JK. Sonolucent Cranioplasty in Extracranial to Intracranial Bypass Surgery: Early Multicenter Experience of 44 Cases. Oper Neurosurg (Hagerstown) 2023:01787389-990000000-00655. [PMID: 36929760 DOI: 10.1227/ons.0000000000000674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 01/10/2023] [Indexed: 03/18/2023] Open
Abstract
BACKGROUND The new sonolucent cranioplasty implant (clear polymethyl methacrylate, PMMA) adds functionality besides surgical reconstruction. One possible application uses the transcranioplasty ultrasound (TCUS) technique after PMMA cranioplasty to assess graft patency of extracranial-intracranial (EC-IC) bypass procedures. OBJECTIVE To report our early multicenter experience. METHODS This is a multicenter analysis of consecutive EC-IC bypass patients from 5 US centers (2019-2022) with closure postbypass using PMMA implant. RESULTS Forty-four patients (median age 53 years, 68.2% females) were included. The most common indication for bypass was Moyamoya disease/syndrome (77.3%), and superficial temporal artery to middle cerebral artery bypass was the most common procedure (79.5%). Pretreatment modified Rankin Scales of 0 and 1 to 2 were noted in 11.4% and 59.1% of patients, respectively. Intraoperative imaging for bypass patency involved a combination of modalities; Doppler was the most used modality (90.9%) followed by indocyanine green and catheter angiography (86.4% and 61.4%, respectively). Qualitative TCUS assessment of graft patency was feasible in all cases. Postoperative inpatient TCUS confirmation of bypass patency was recorded in 56.8% of the cases, and outpatient TCUS surveillance was recorded in 47.7%. There were no cases of bypass failure necessitating retreatment. Similarly, no implant-related complications were encountered in the cohort. Major complications requiring additional surgery occurred in 2 patients (4.6%) including epidural hematoma requiring evacuation (2.3%) and postoperative surgical site infection (2.3%) that was believed to be unrelated to the implant. CONCLUSION This multicenter study supports safety and feasibility of using sonolucent PMMA implant in EC-IC bypass surgery with the goal of monitoring bypass patency using TCUS.
Collapse
Affiliation(s)
- Mohamed M Salem
- Department of Neurosurgery, Hospital of the University of Pennsylvania, Penn Medicine, Philadelphia, Pennsylvania, USA
| | - Krishnan Ravindran
- Department of Neurological Surgery, Mayo Clinic, Jacksonville, Florida, USA
| | - Alex Nguyen Hoang
- Department of Neurosurgery, Baylor College of Medicine, Houston, Texas, USA
| | - Omer Doron
- Department of Neurosurgery, Lenox Hill Hospital, New York City, New York, USA
| | - Rogelio Esparza
- Department of Neurosurgery, New York University School of Medicine, New York, New York, USA
| | - Daniel Raper
- Department of Neurosurgery, Baylor College of Medicine, Houston, Texas, USA
| | - Brian T Jankowitz
- Department of Neurosurgery, Hospital of the University of Pennsylvania, Penn Medicine, Philadelphia, Pennsylvania, USA
| | - Omar Tanweer
- Department of Neurosurgery, Baylor College of Medicine, Houston, Texas, USA
| | - Demetrius Lopes
- Department of Neurosurgery, Advocate Aurora Health System, Chicago, Illinois, USA
| | - David Langer
- Department of Neurosurgery, Lenox Hill Hospital, New York City, New York, USA
| | - Erez Nossek
- Department of Neurosurgery, New York University School of Medicine, New York, New York, USA
| | - Jan-Karl Burkhardt
- Department of Neurosurgery, Hospital of the University of Pennsylvania, Penn Medicine, Philadelphia, Pennsylvania, USA
| |
Collapse
|
13
|
Jabas A, Abello Mercado MA, Altmann S, Ringel F, Booz C, Kronfeld A, Sanner AP, Brockmann MA, Othman AE. Single-Energy Metal Artifact Reduction (SEMAR) in Ultra-High-Resolution CT Angiography of Patients with Intracranial Implants. Diagnostics (Basel) 2023; 13:diagnostics13040620. [PMID: 36832109 PMCID: PMC9955916 DOI: 10.3390/diagnostics13040620] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 02/05/2023] [Accepted: 02/06/2023] [Indexed: 02/11/2023] Open
Abstract
PURPOSE To evaluate the effects of single-energy metal artifact reduction (SEMAR) on image quality of ultra-high-resolution CT-angiography (UHR-CTA) with intracranial implants after aneurysm treatment. METHODS Image quality of standard and SEMAR-reconstructed UHR-CT-angiography images of 54 patients who underwent coiling or clipping was retrospectively evaluated. Image noise (i.e., index for metal-artifact strength) was analyzed in close proximity to and more distally from the metal implant. Frequencies and intensities of metal artifacts were additionally measured and intensity-differences between both reconstructions were compared in different frequencies and distances. Qualitative analysis was performed by two radiologists using a four-point Likert-scale. All measured results from both quantitative and qualitative analysis were then compared between coils and clips. RESULTS Metal artifact index (MAI) and the intensity of coil-artifacts were significantly lower in SEMAR than in standard CTA in close vicinity to and more distally from the coil-package (p < 0.001, each). MAI and the intensity of clip-artifacts were significantly lower in close vicinity (p = 0.036; p < 0.001, respectively) and more distally from the clip (p = 0.007; p < 0.001, respectively). In patients with coils, SEMAR was significantly superior in all qualitative categories to standard images (p < 0.001), whereas in patients with clips, only artifacts were significantly less (p < 0.05) for SEMAR. CONCLUSION SEMAR significantly reduces metal artifacts in UHR-CT-angiography images with intracranial implants and improves image quality and diagnostic confidence. SEMAR effects were strongest in patients with coils, whereas the effects were minor in patients with titanium-clips due to the absent of or minimal artifacts.
Collapse
Affiliation(s)
- Abdullah Jabas
- Department of Neuroradiology, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
| | | | - Sebastian Altmann
- Department of Neuroradiology, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
| | - Florian Ringel
- Department of Neurosurgery, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
| | - Christian Booz
- Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt, 60590 Frankfurt, Germany
| | - Andrea Kronfeld
- Department of Neuroradiology, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
| | - Antoine P. Sanner
- Department of Neuroradiology, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
- Department of Computer Science, Technical University Darmstad, Fraunhofer IGD, Fraunhoferstraße 5, 64283 Darmstadt, Germany
| | - Marc A. Brockmann
- Department of Neuroradiology, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
| | - Ahmed E. Othman
- Department of Neuroradiology, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
- Correspondence: ; Tel.: +49-6131-177139
| |
Collapse
|
14
|
Shchederkina IO, Livshits MI, Kessel AE, Plavunov NF, Kuznetsova AA, Khachaturov YA, Vitkovskaya IP, Khasanova KA, Lim RT, Sidorov AM, Tenovskaya TA, Asalkhanova SB, Gorev VV. [Stroke in children: experience of the Center for the Treatment of Cerebrovascular Diseases in Children and Adolescents in Moscow]. Zh Nevrol Psikhiatr Im S S Korsakova 2023; 123:22-31. [PMID: 37682092 DOI: 10.17116/jnevro202312308222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/09/2023]
Abstract
OBJECTIVE To analyze the work of the Center for the Treatment of Cerebrovascular Pathology in Children and Adolescents, operating on the basis of the Morozov Children's City Clinical Hospital of the Moscow Health Department for the period 2018-2021 and to assess the peculiarities of organizing the provision of specialized care to children and adolescents with acute cerebrovascular accident (ACA). MATERIAL AND METHODS Annual reports of the Center for the period 2018-2021; included children and adolescents aged 1 month to 17 years 11 months 29 days, with new onset ischemic stroke (IS) and hemorrhagic stroke (HS), cerebral venous thrombosis (sinus thrombosis), confirmed clinically and radiologically. RESULTS Statistical data on stroke and organization of care for children with this pathology in Moscow are presented. The incidence of IS in Moscow for the period 2018-2021 ranged from 1.6 to 2.5 per 100.000 children, HI - from 2.35 to 3.3 per 100.000, sinus thrombosis from 0.5 to 1.38 per 100.000. When assessing the main etiological factors of stroke in The Center for International Pediatric Stroke Research categories, we noted a prevalence of chronic head and neck diseases (20-37%) and chronic systemic conditions (conditions or diseases with known changes in coagulation or vascular structure, including connective tissue dysplasia, genetic, hematological, inflammatory or diseases of the immune system) (15-20%). In addition, data on reperfusion therapy carried out at the Center are presented. From 2018 (first thrombolysis was performed) to 2021, 7.3-14.7% of all patients with IS underwent thrombolysis. CONCLUSION The experience of functioning of the Center for the Treatment of Cerebrovascular Pathology in Children and Adolescents has shown that the creation of such centers in the regions of the Russian Federation is relevant, but requires taking into account the characteristics of the pediatric population when organizing their work.
Collapse
Affiliation(s)
- I O Shchederkina
- Morozov Children's City Clinical Hospital, Moscow, Russia
- Moscow Reseach and Clinical Center for Neuropsychiatry, Moscow, Russia
| | - M I Livshits
- Morozov Children's City Clinical Hospital, Moscow, Russia
- Pirogov Russian National Research Medical University, Moscow, Russia
| | - A E Kessel
- Morozov Children's City Clinical Hospital, Moscow, Russia
| | - N F Plavunov
- Puchkov First Aid Station, Moscow, Russia
- Yevdokimov Moscow State University of Medicine and Dentistry, Moscow, Russia
| | - A A Kuznetsova
- Morozov Children's City Clinical Hospital, Moscow, Russia
- Moscow Reseach and Clinical Center for Neuropsychiatry, Moscow, Russia
| | | | - I P Vitkovskaya
- Morozov Children's City Clinical Hospital, Moscow, Russia
- Research Institute of Health Care Organization and Medical Management of Moscow Healthcare Department, Moscow, Russia
| | - K A Khasanova
- Morozov Children's City Clinical Hospital, Moscow, Russia
- Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - R T Lim
- Morozov Children's City Clinical Hospital, Moscow, Russia
| | - A M Sidorov
- Puchkov First Aid Station, Moscow, Russia
- Yevdokimov Moscow State University of Medicine and Dentistry, Moscow, Russia
| | - T A Tenovskaya
- Morozov Children's City Clinical Hospital, Moscow, Russia
| | | | - V V Gorev
- Morozov Children's City Clinical Hospital, Moscow, Russia
- Russian Medical Academy of Continuous Professional Education, Moscow, Russia
| |
Collapse
|
15
|
Nam HH, Jang DK, Cho BR. Complications and risk factors after digital subtraction angiography: 1-year single-center study. J Cerebrovasc Endovasc Neurosurg 2022; 24:335-340. [PMID: 36153862 PMCID: PMC9829562 DOI: 10.7461/jcen.2022.e2022.05.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Accepted: 06/23/2022] [Indexed: 01/21/2023] Open
Abstract
OBJECTIVE Digital subtraction angiography (DSA) is an imaging technique used to diagnose and confirm abnormal lesions of cerebral blood vessels in various situations. Several complications such as cerebral infarction, contrast-induced allergy, and angio-site hematoma or infection can occur after DSA. We investigated complication rates and risk factors related to DSA. METHODS All patients who underwent DSA at Incheon St. Mary's Hospital from January to December 2021 were included. Those who underwent emergency DSA due to stroke or who underwent endovascular surgery within 1 week after DSA were excluded. Complications that occurred within 1 week after DSA were included in the study and was classified into three categories (neurologic complications, contrast-induced allergy, and wound complications). RESULTS The mean age was 57.7±13.2 years old and the female was dominant at 63.9%. The overall complication rate was 5% (n=20/407). Regarding neurologic complications, the presence of malignancy (p<0.01), and a longer procedure time (>15 minutes, p=0.04) were statistically significant factors. Contrast-induced allergy did not show any statistically significant difference in any parameter. The wound complication rate was higher in men (p=0.02), trans-femoral approach (p=0.02), frequent alcohol drinkers (p=0.04), those taking anticoagulants (p=0.03), and longer procedure time (>15 minutes, p<0.01). CONCLUSIONS DSA is an invasive diagnostic modality and can cause several complications. Patients with cancer should be more careful about the occurrence of cerebral infarction, and men taking anticoagulants or drinking frequently should be more careful about the occurrence of angio-site hematomas.
Collapse
Affiliation(s)
- Ho Hyun Nam
- Department of Neurosurgery, Daejeon St. Mary’s Hospital, The Catholic University of Korea, Daejeon, Korea
| | - Dong Kyu Jang
- Department of Neurosurgery, Incheon St. Mary’s Hospital, The Catholic University of Korea, Incheon, Korea
| | - Byung Rae Cho
- Department of Neurosurgery, Incheon St. Mary’s Hospital, The Catholic University of Korea, Incheon, Korea,Correspondence to Byung Rae Cho Department of Neurosurgery, Incheon St. Mary’s Hospital, The Catholic University of Korea, 56 Dongsu-ro, Bupyeong-gu, Incheon, Korea Tel +82-32-280-5973 Fax +82-32-280-5991 E-mail
| |
Collapse
|
16
|
Senthilkumar T, Kumarganesh S, Sivakumar P, Periyarselvam K. Primitive detection of Alzheimer’s disease using neuroimaging: A progression model for Alzheimer’s disease: Their applications, benefits, and drawbacks. JOURNAL OF INTELLIGENT & FUZZY SYSTEMS 2022. [DOI: 10.3233/jifs-220628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Alzheimer’s disease (A.D.) is the most widespread type of Dementia, and it is not a curable neurodegenerative disease that affects millions of older people. Researchers were able to use their understanding of Alzheimer’s disease risk variables to develop enrichment processes for longitudinal imaging studies. Using this method, they reduced their sample size and study time. This paper describes the primitive detective of Alzheimer’s diseases using Neuroimaging techniques. Several preprocessing methods were used to ensure that the dataset was ready for subsequent feature extraction and categorization. The noise was reduced by converting and averaging many scan frames from real to DCT space. Both sides of the averaged image were filtered and combined into a single shot after being converted to real space. InceptionV3 and DenseNet201 are two pre-trained models used in the suggested model. The PCA approach was used to select the traits, and the resulting explained variance ratio was 0.99The Simons Foundation Autism Research Initiative (SFARI)—Simon’s Simplex Collection (SSC)—and UCI machine learning datasets showed that our method is faster and more successful at identifying complete long-risk patterns when compared to existing methods.
Collapse
Affiliation(s)
- T. Senthilkumar
- GRT Institute of Engineering and Technology, Tiruttani, Tamilnadu, India
| | | | - P. Sivakumar
- GRT Institute of Engineering and Technology, Tiruttani, Tamilnadu, India
| | - K. Periyarselvam
- GRT Institute of Engineering and Technology, Tiruttani, Tamilnadu, India
| |
Collapse
|
17
|
Suzuki T, Hasegawa H, Ando K, Shibuya K, Takahashi H, Saito S, Oishi M, Fujii Y. Non-contrast-enhanced silent magnetic resonance angiography for assessing cerebral aneurysms after PulseRider treatment. Jpn J Radiol 2022; 40:979-985. [PMID: 35430678 PMCID: PMC9441419 DOI: 10.1007/s11604-022-01276-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 03/24/2022] [Indexed: 11/25/2022]
Abstract
Purpose Conventional time-of-flight (TOF) magnetic resonance angiography (MRA) failed to depict clear visualization of coiled cerebral aneurysms with PulseRider due to metal-induced susceptibility artifacts. Our aim was to overcome the metal artifact using a novel imaging technique of non-contrast-enhanced ultrashort echo-time magnetic resonance angiography (UTE-MRA). Materials and methods Five unruptured intracranial aneurysms were treated using PulseRider and the patients underwent silent MRA (UTE-MRA). The images were compared with TOF-MRA and digital subtraction angiography (DSA). Results Silent MRA can visualize the residual cavity of the coiled aneurysms, which was not well visualized and rather defective when using TOF-MRA. While a segment of the proximal marker composed of stainless steel was poorly visualized, the other parts of the parent artery and the arteries of bifurcation, including the aneurysmal neck, were clearly visualized, equivalent to that of DSA. Conclusions UTE-MRA achieves better visualization of cerebral aneurysms after PulseRider treatment than TOF-MRA.
Collapse
Affiliation(s)
- Tomoaki Suzuki
- Department of Neurosurgery, Brain Research Institute, Niigata University, 1-757 Asahimachi-Dori, Niigata, 951-8585, Japan.
| | - Hitoshi Hasegawa
- Department of Neurosurgery, Brain Research Institute, Niigata University, 1-757 Asahimachi-Dori, Niigata, 951-8585, Japan
| | - Kazuhiro Ando
- Department of Neurosurgery, Brain Research Institute, Niigata University, 1-757 Asahimachi-Dori, Niigata, 951-8585, Japan
| | - Kohei Shibuya
- Department of Neurosurgery, Brain Research Institute, Niigata University, 1-757 Asahimachi-Dori, Niigata, 951-8585, Japan
| | - Haruhiko Takahashi
- Department of Neurosurgery, Brain Research Institute, Niigata University, 1-757 Asahimachi-Dori, Niigata, 951-8585, Japan
| | - Shoji Saito
- Department of Neurosurgery, Brain Research Institute, Niigata University, 1-757 Asahimachi-Dori, Niigata, 951-8585, Japan
| | - Makoto Oishi
- Department of Neurosurgery, Brain Research Institute, Niigata University, 1-757 Asahimachi-Dori, Niigata, 951-8585, Japan
| | - Yukihiko Fujii
- Department of Neurosurgery, Brain Research Institute, Niigata University, 1-757 Asahimachi-Dori, Niigata, 951-8585, Japan
| |
Collapse
|
18
|
AlFawaz AA, AlShatti HJ, Safar AH. Surgical management of scalp cirsoid aneurysms: Kuwait experience. (case series). Ann Med Surg (Lond) 2022; 76:103479. [PMID: 35299941 PMCID: PMC8921340 DOI: 10.1016/j.amsu.2022.103479] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Revised: 03/03/2022] [Accepted: 03/06/2022] [Indexed: 11/25/2022] Open
Abstract
Background Cirsoid aneurysms are arteriovenous malformations of the scalp region that usually manifest as a painless pulsatile mass. These are present in the younger age group and frequently associated with trauma. Objectives Several treatment algorithms have been proposed, and we report our experience with sole surgical management. Methods Retrospective review of all the scalp vascular malformation cases performed in the main national Vascular Surgery Service of Kuwait. Pre-operative data, including patient demographics were obtained. All patients underwent diagnostic vascular Duplex ultrasound and angiography. Intra-operative and post-operative data, including outcomes and follow up were recorded. Results Six patients with Cirsoid aneurysm, four females and two males, had a mean age of 19.7 years (range, 10–33 years). All the patients presented with a painless pulsating mass in the scalp (4 Anterolateral and 2 posterior), and one case had associated dizziness and headache. These malformations were found to be solely fed by the extra-cranial vessels with no intra-cranial communication. One patient had pre-operative embolization prior to excision, and the rest had sole surgical excision. No postoperatively complications or recurrence were seen at 2–5 year follow up. Conclusions Cirsoid aneurysms are amenable to sole surgical excision with excellent results after excluding intra-cranial communication. Cirsoid aneurysms are extra cranial AVMs arising in the scalp Most patients present with painless mass. Diagnosis is made with duplex ultrasound and/or CT angiography. We recommend sole surgical over endovascular therapy or a hybrid approach.
Collapse
|
19
|
Maupu C, Lebas H, Boulaftali Y. Imaging Modalities for Intracranial Aneurysm: More Than Meets the Eye. Front Cardiovasc Med 2022; 9:793072. [PMID: 35242823 PMCID: PMC8885801 DOI: 10.3389/fcvm.2022.793072] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 01/17/2022] [Indexed: 11/21/2022] Open
Abstract
Intracranial aneurysms (IA) are often asymptomatic and have a prevalence of 3 to 5% in the adult population. The risk of IA rupture is low, however when it occurs half of the patients dies from subarachnoid hemorrhage (SAH). To avoid this fatal evolution, the main treatment is an invasive surgical procedure, which is considered to be at high risk of rupture. This risk score of IA rupture is evaluated mainly according to its size and location. Therefore, angiography and anatomic imaging of the intracranial aneurysm are crucial for its diagnosis. Moreover, it has become obvious in recent years that several other factors are implied in this complication, such as the blood flow complexity or inflammation. These recent findings lead to the development of new IA imaging tools such as vessel wall imaging, 4D-MRI, or molecular MRI to visualize inflammation at the site of IA in human and animal models. In this review, we will summarize IA imaging techniques used for the patients and those currently in development.
Collapse
|
20
|
Uluc K, Ambady P, McIntyre MK, Tabb JP, Kersch CN, Nerison CS, Huddleston A, Liu JJ, Dogan A, Priest RA, Fu R, Prola Netto J, Siler DA, Muldoon LL, Gahramanov S, Neuwelt EA. Safety of intra-arterial chemotherapy with or without osmotic blood–brain barrier disruption for the treatment of patients with brain tumors. Neurooncol Adv 2022; 4:vdac104. [PMID: 35892048 PMCID: PMC9307096 DOI: 10.1093/noajnl/vdac104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Background Intra-arterial administration of chemotherapy with or without osmotic blood–brain barrier disruption enhances delivery of therapeutic agents to brain tumors. The aim of this study is to evaluate the safety of these procedures. Methods Retrospectively collected data from a prospective database of consecutive patients with primary and metastatic brain tumors who received intra-arterial chemotherapy without osmotic blood–brain barrier disruption (IA) or intra-arterial chemotherapy with osmotic blood–brain barrier disruption (IA/OBBBD) at Oregon Health and Science University (OHSU) between December 1997 and November 2018 is reported. Chemotherapy-related complications are detailed per Common Terminology Criteria for Adverse Events (CTCAE) guidelines. Procedure-related complications are grouped as major and minor. Results 4939 procedures (1102 IA; 3837 IA/OBBBD) were performed on 436 patients with various pathologies (primary central nervous system lymphoma [26.4%], glioblastoma [18.1%], and oligodendroglioma [14.7%]). Major procedure-related complications (IA: 12, 1%; IA/OBBBD: 27, 0.7%; P = .292) occurred in 39 procedures including 3 arterial dissections requiring intervention, 21 symptomatic strokes, 3 myocardial infarctions, 6 cervical cord injuries, and 6 deaths within 3 days. Minor procedure-related complications occurred in 330 procedures (IA: 41, 3.7%; IA/OBBBD: 289, 7.5%; P = .001). Chemotherapy-related complications with a CTCAE attribution and grade higher than 3 was seen in 359 (82.3%) patients. Conclusions We provide safety and tolerability data from the largest cohort of consecutive patients who received IA or IA/OBBBD. Our data demonstrate that IA or IA/OBBBD safely enhance drug delivery to brain tumors and brain around the tumor.
Collapse
Affiliation(s)
- Kutluay Uluc
- Department of Neurology, Oregon Health & Science University , Portland, Oregon , USA
| | - Prakash Ambady
- Department of Neurology, Oregon Health & Science University , Portland, Oregon , USA
| | - Matthew K McIntyre
- Department of Neurosurgery, Oregon Health & Science University , Portland, Oregon , USA
| | - John Philip Tabb
- Department of Neurosurgery, Oregon Health & Science University , Portland, Oregon , USA
| | - Cymon N Kersch
- Department of Neurology, Oregon Health & Science University , Portland, Oregon , USA
- Providence Portland Internal Medicine Residency Program , Providence, Portland, Oregon , USA
| | - Caleb S Nerison
- Western University of Health Sciences COMP-NW , Lebanon, Oregon , USA
| | - Amy Huddleston
- Department of Neurology, Oregon Health & Science University , Portland, Oregon , USA
| | - Jesse J Liu
- Department of Neurosurgery, Oregon Health & Science University , Portland, Oregon , USA
- Department of Interventional Radiology, Oregon Health & Science University , Portland, Oregon , USA
- Portland Veterans Affairs Medical Center , Portland, Oregon , USA
| | - Aclan Dogan
- Department of Neurosurgery, Oregon Health & Science University , Portland, Oregon , USA
| | - Ryan A Priest
- Department of Interventional Radiology, Oregon Health & Science University , Portland, Oregon , USA
| | - Rongwei Fu
- School of Public Health, Oregon Health & Science University , Portland, Oregon , USA
| | | | - Dominic A Siler
- Department of Neurosurgery, Oregon Health & Science University , Portland, Oregon , USA
| | - Leslie L Muldoon
- Department of Neurology, Oregon Health & Science University , Portland, Oregon , USA
| | - Seymur Gahramanov
- Capital Neurosurgery Specialists, Salem Health , Salem, Oregon , USA
| | - Edward A Neuwelt
- Department of Neurology, Oregon Health & Science University , Portland, Oregon , USA
- Department of Neurosurgery, Oregon Health & Science University , Portland, Oregon , USA
- Portland Veterans Affairs Medical Center , Portland, Oregon , USA
| |
Collapse
|
21
|
Early Diagnosis of Alzheimer’s Disease Using Cerebral Catheter Angiogram Neuroimaging: A Novel Model Based on Deep Learning Approaches. BIG DATA AND COGNITIVE COMPUTING 2021. [DOI: 10.3390/bdcc6010002] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Neuroimaging refers to the techniques that provide efficient information about the neural structure of the human brain, which is utilized for diagnosis, treatment, and scientific research. The problem of classifying neuroimages is one of the most important steps that are needed by medical staff to diagnose their patients early by investigating the indicators of different neuroimaging types. Early diagnosis of Alzheimer’s disease is of great importance in preventing the deterioration of the patient’s situation. In this research, a novel approach was devised based on a digital subtracted angiogram scan that provides sufficient features of a new biomarker cerebral blood flow. The used dataset was acquired from the database of K.A.U.H hospital and contains digital subtracted angiograms of participants who were diagnosed with Alzheimer’s disease, besides samples of normal controls. Since each scan included multiple frames for the left and right ICA’s, pre-processing steps were applied to make the dataset prepared for the next stages of feature extraction and classification. The multiple frames of scans transformed from real space into DCT space and averaged to remove noises. Then, the averaged image was transformed back to the real space, and both sides filtered with Meijering and concatenated in a single image. The proposed model extracts the features using different pre-trained models: InceptionV3 and DenseNet201. Then, the PCA method was utilized to select the features with 0.99 explained variance ratio, where the combination of selected features from both pre-trained models is fed into machine learning classifiers. Overall, the obtained experimental results are at least as good as other state-of-the-art approaches in the literature and more efficient according to the recent medical standards with a 99.14% level of accuracy, considering the difference in dataset samples and the used cerebral blood flow biomarker.
Collapse
|
22
|
Yasuda R, Satow T, Hashimura N, Nishimura M, Takahashi JC, Kataoka H. Usefulness of Craniograms in Discriminating Coiled Intracranial Aneurysms Requiring Retreatment. Neurol Med Chir (Tokyo) 2021; 62:118-124. [PMID: 34880195 PMCID: PMC8918367 DOI: 10.2176/nmc.oa.2021-0225] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
While endovascular coil embolization has become one of the major therapeutic modalities for intracranial aneurysms, long-term imaging follow-up is required because of the higher rate of retreatment compared with surgical clipping. The purpose of this study was to show the usefulness of craniograms to discriminate coiled intracranial aneurysms that required retreatment. Under the study protocol approved by institutional review board, a retrospective review of the medical record was done regarding coil embolization for intracranial aneurysms performed between January 2014 and December 2018. Coil embolization performed as the initial treatment and followed up for more than 1 year without additional treatment, and those performed as retreatment after the initial coil embolization performed at our institution were recruited. Craniograms obtained just after the initial treatment were compared with those obtained just before the additional treatment in the retreated cases and compared with the latest ones in the non-recurrence cases. Correlation between the morphological changes in the coil mass on the craniograms and retreatments was evaluated. During the study period, 288 coil embolization procedures for intracranial aneurysms were performed. From these, 191 treatments that were followed up for more than 1 year without any additional treatments and 30 retreatments were included. Morphological change of the coil mass was observed in 4 of the 191 non-recurrence treatments and 26 of the 30 retreatments, which was significantly correlated with retreatments (p <0.001). Craniogram was a useful modality in following up the coiled intracranial aneurysms to detect those required retreatments.
Collapse
Affiliation(s)
- Ryuta Yasuda
- Department of Neurosurgery, National Cerebral and Cardiovascular Center.,Department of Neurosurgery, Mie Graduate school of Medicine, Faculty of Medicine
| | - Tetsu Satow
- Department of Neurosurgery, National Cerebral and Cardiovascular Center
| | - Naoki Hashimura
- Department of Neurosurgery, National Cerebral and Cardiovascular Center
| | - Masaki Nishimura
- Department of Neurosurgery, National Cerebral and Cardiovascular Center
| | - Jun C Takahashi
- Department of Neurosurgery, National Cerebral and Cardiovascular Center
| | - Hiroharu Kataoka
- Department of Neurosurgery, National Cerebral and Cardiovascular Center
| |
Collapse
|
23
|
Mesquita Sousa Santos PE, Gabriela Figueiredo Pucci, Juliana Akita. Vertebral artery hypoplasia and chronic migraine: is there an association or just an incidental finding? HEADACHE MEDICINE 2021. [DOI: 10.48208/headachemed.2021.27] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
We describe a 29-year-old woman with chronic migraine and psychiatric comorbidities that presented with new transient left-sided hemiparesis and hemi-hypoesthesia and were found to have right vertebral artery hypoplasia (VAH). We briefly review the association of VAH and migraine and the influence of psychiatric disorders and VAH as possible risk factors for chronification of episodic migraine. Despite uncertain mechanisms, VAH may be one of thecontributing factors for the chronicity of migraine.
Collapse
|
24
|
Abstract
PURPOSE OF REVIEW This article discusses neurologic complications encountered in the postoperative care of neurosurgical patients that are common or key to recognize in the immediate postoperative period. The major neurosurgical subspecialty procedures (cerebrovascular neurosurgery, neuro-oncology, epilepsy neurosurgery, functional neurosurgery, CSF diversion, endovascular neurosurgery, and spinal surgery) are broadly included under craniotomy procedures, endovascular/vascular procedures, and spinal procedures. This article focuses on the range of complications inherent in these approaches with specific scenarios addressed as applicable. RECENT FINDINGS The morbidity and mortality related to neurosurgical procedures remains high, necessitating ongoing research and quality improvement efforts in perioperative screening, intraoperative management, surgical approaches, and postoperative care of these patients. Emerging research continues to investigate safer and newer options for routine neurosurgical approaches, such as coiling over clipping for amenable aneurysms, endoscopic techniques for transsphenoidal hypophysectomy, and minimally invasive spinal procedures; postoperative monitoring and care of patients after these procedures continues to be a key component in the continuum of care for improving outcomes. SUMMARY Postoperative care of patients undergoing major neurosurgical procedures is an integral part of many neurocritical care practices. Neurosurgeons often enlist help from neurologists to assist with evaluation, interpretation, and management of complications in routine inpatient settings. Awareness of the common neurologic complications of various neurosurgical procedures can help guide appropriate clinical monitoring algorithms and quality improvement processes for timely evaluation and management of these patients.
Collapse
|
25
|
Association of Aortic Arch Calcification on Chest X-ray with Procedural Thromboembolism after Mechanical Thrombectomy for Acute Ischemic Stroke. MEDICINA-LITHUANIA 2021; 57:medicina57090859. [PMID: 34577782 PMCID: PMC8467333 DOI: 10.3390/medicina57090859] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 08/20/2021] [Accepted: 08/23/2021] [Indexed: 11/29/2022]
Abstract
Background and Objective: Procedural thromboembolism after a mechanical thrombectomy (MT) for an acute ischemic stroke (AIS) has rarely been studied. It may occur from the artery-to-artery embolization of atherosclerotic plaque in the aortic arch. We investigated the relationship between aortic arch calcification (AoAC) on a chest X-ray and procedural thromboembolism on diffusion-weighted imaging (DWI) after an MT. Materials and Methods: From January 2017 to December 2020, 131 patients underwent DWI within two days following an MT for an AIS. Procedural thromboembolism was defined as new DWI-positive lesions in other territories from the occluded artery on DWI within two days after MT. Results: Procedural thromboembolism was observed in 30 (22.9%) patients. Procedural thromboembolism was associated with old age (72.3 ± 9.44 vs. 65.7 ± 12.8 years, p = 0.003), a longer procedural time (77.6 ± 37.6 vs. 60.1 ± 29.7 min, p = 0.024), and AoAC (calcification (73.3%) vs. no calcification (29.7%), p < 0.001). Multivariable logistic regression analysis showed that procedural thromboembolism was independently associated with AoAC (adjusted odds ratio (OR): 6.107, adjusted 95% confidence interval (CI): 2.374–15.705, p < 0.001) and a longer procedural time (adjusted OR: 1.015, adjusted 95% CI: 1.001–1.030, p = 0.031). Conclusions: Procedural thromboembolism after an MT for an AIS was related to AoAC on a chest X-ray and a longer procedural time. Our results suggest that although rapid recanalization is the most crucial goal of an MT for an AIS, the importance of the careful advance of the guiding catheter through the aortic arch should not be underestimated to reduce the risk of procedural thromboembolism, especially in patients with AoAC on a chest X-ray.
Collapse
|
26
|
Zhang Y, Zhou M, Wang D, Liu T, Chang P, Zhang J, Zhang R, Luo Y, Liu P. Case Report: A 62-Year-Old Woman With Contrast-Induced Encephalopathy Caused by Embolization of Intracranial Aneurysm. Front Surg 2021; 8:689713. [PMID: 34350209 PMCID: PMC8326837 DOI: 10.3389/fsurg.2021.689713] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 06/16/2021] [Indexed: 12/22/2022] Open
Abstract
Contrast-induced encephalopathy (CIE) is a rare complication of endovascular treatment and is extensively reported as a transient and reversible phenomenon. This report describes a 62-year-old woman for embolization of an internal carotid artery (ICA) aneurysm. The operation was successful, but postoperation the patient suffered unconsciousness, blindness, hemiplegia, ophthalmoplegia, fever, and seizures. CT of the brain without the contrast showed widespread edema in the right cerebral hemisphere, which is involved in the frontal, parietal, temporal, and occipital lobes. She was diagnosed with CIE in time and treated with supportive management as soon as possible, and fortunately, the patient improved a benign course and was discharged without any neurological deficits. This study emphasizes the prevention of the CIE and the importance of early diagnosis and symptomatic treatment.
Collapse
Affiliation(s)
- Ying Zhang
- Department of Encephalopathy, Traditional Chinese Medicine Hospital of Weifang, Weifang, China
| | - Ming Zhou
- Department of Encephalopathy, Traditional Chinese Medicine Hospital of Weifang, Weifang, China
| | - Dong Wang
- Department of Encephalopathy, Traditional Chinese Medicine Hospital of Weifang, Weifang, China
| | - Tao Liu
- Department of Encephalopathy, Traditional Chinese Medicine Hospital of Weifang, Weifang, China
| | - Pengfei Chang
- Department of Encephalopathy, Traditional Chinese Medicine Hospital of Weifang, Weifang, China
| | - Jie Zhang
- Department of Encephalopathy, Traditional Chinese Medicine Hospital of Weifang, Weifang, China
| | - Rui Zhang
- Department of Encephalopathy, Traditional Chinese Medicine Hospital of Weifang, Weifang, China
| | - Yumin Luo
- Department of Neurology, Xuanwu Hospital of Capital Medical University, Beijing, China
| | - Ping Liu
- Department of Neurology, Xuanwu Hospital of Capital Medical University, Beijing, China
| |
Collapse
|
27
|
Zhang HB, Wang P, Wang Y, Wang JH, Li Z, Li R. Mechanical thrombectomy for acute occlusion of the posterior inferior cerebellar artery: A case report. World J Clin Cases 2021; 9:2268-2273. [PMID: 33869602 PMCID: PMC8026849 DOI: 10.12998/wjcc.v9.i10.2268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Revised: 01/01/2021] [Accepted: 02/01/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Mechanical thrombectomy (MT) has been demonstrated to be useful for the treatment of ischemic stroke in patients with large vessel occlusions. However, recanalization by MT is not recommended for distal vessels such as second-order branches of the middle cerebral artery and posterior inferior cerebellar artery (PICA). Because of the small size and tortuosity of these arteries, the risks of using the available endovascular devices outweigh the benefits of treatment. However, MT appears to be effective in patients with primary distal vessel occlusion in eloquent areas, those with a high National Institutes of Health Stroke Scale score, and those ineligible for recombinant tissue plasminogen activator therapy. Here, we report the use of MT for treating acute occlusion of the PICA using a direct-aspiration first-pass technique (ADAPT).
CASE SUMMARY In this case, the patient received acute occlusion of the PICA with ADAPT when right internal carotid artery stenting was performed.
CONCLUSION With the introduction of advanced endovascular devices, MT may now be a feasible treatment for acute occlusion of the PICA.
Collapse
Affiliation(s)
- Hong-Bo Zhang
- Department of Neurology, Chengdu Fifth People's Hospital, Chengdu 611130, Sichuan Province, China
| | - Pian Wang
- Department of Neurology, Chengdu Fifth People's Hospital, Chengdu 611130, Sichuan Province, China
| | - Yan Wang
- Department of Neurology, Chengdu Fifth People's Hospital, Chengdu 611130, Sichuan Province, China
| | - Jiang-Hong Wang
- Department of Neurology, Chengdu Fifth People's Hospital, Chengdu 611130, Sichuan Province, China
| | - Zheng Li
- Department of Neurology, Chengdu Fifth People's Hospital, Chengdu 611130, Sichuan Province, China
| | - Rong Li
- Department of Neurology, Chengdu Fifth People's Hospital, Chengdu 611130, Sichuan Province, China
| |
Collapse
|
28
|
Kamimura T, Nakamori M, Imamura E, Hayashi Y, Matsushima H, Mizoue T, Wakabayashi S, Maruyama H. Low-dose Contrast-induced Encephalopathy During Diagnostic Cerebral Angiography. Intern Med 2021; 60:629-633. [PMID: 32999223 PMCID: PMC7946509 DOI: 10.2169/internalmedicine.5139-20] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Contrast-induced encephalopathy (CIE) is a rare complication of contrast agent use. We herein report a case of acute lacunar infarction in a 70-year-old woman. During diagnostic cerebral angiography for asymptomatic common carotid stenosis, she experienced transient drowsiness. After angiography, generalized tonic-clonic seizures occurred in her left arm and leg, with eye deviation to the left. The patient was diagnosed with CIE due to the acute onset of symptoms during angiography and characteristic computed tomography findings of high-density signaling in the cortex. Our findings suggest that it is important to pay close attention to acute neurological symptoms during and immediately after examinations, even with small amounts of contrast agents.
Collapse
Affiliation(s)
- Teppei Kamimura
- Department of Neurology, Suiseikai Kajikawa Hospital, Japan
- Department of Clinical Neuroscience and Therapeutics, Hiroshima University Graduate School of Biomedical and Health Sciences, Japan
| | - Masahiro Nakamori
- Department of Neurology, Suiseikai Kajikawa Hospital, Japan
- Department of Clinical Neuroscience and Therapeutics, Hiroshima University Graduate School of Biomedical and Health Sciences, Japan
| | - Eiji Imamura
- Department of Neurology, Suiseikai Kajikawa Hospital, Japan
| | - Yuki Hayashi
- Department of Neurology, Suiseikai Kajikawa Hospital, Japan
- Department of Clinical Neuroscience and Therapeutics, Hiroshima University Graduate School of Biomedical and Health Sciences, Japan
| | | | - Tatsuya Mizoue
- Department of Neurosurgery, Suiseikai Kajikawa Hospital, Japan
| | | | - Hirofumi Maruyama
- Department of Clinical Neuroscience and Therapeutics, Hiroshima University Graduate School of Biomedical and Health Sciences, Japan
| |
Collapse
|
29
|
China M, Matloob SA, Grieve JP, Toma AK. The value of repeated lumbar puncture to test for xanthochromia, in patients with clinical suspicion of subarachnoid haemorrhage, with CT-negative and initial traumatic tap. Br J Neurosurg 2021; 35:476-479. [PMID: 33527849 DOI: 10.1080/02688697.2021.1875398] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVES For the diagnosis of subarachnoid haemorrhage (SAH), the presence of cerebrospinal fluid (CSF) xanthochromia is still considered the gold standard for patients with a thunderclap headache, in the absence of blood on brain CT scan. However, a traumatic lumbar puncture (LP) typically results in high concentrations of oxyhaemoglobin in CSF, impairing the detection of xanthochromia and preventing the reliable exclusion of SAH. In this context, the value of a repeat lumbar puncture has not yet been described. MATERIALS AND METHODS A retrospective case series of suspected SAH patients, with a negative CT scan and initial traumatic LP, managed with a repeat LP to assess for CSF xanthochromia. Clinical notes, laboratory and imaging results were reviewed. RESULTS Between August 2011 and January 2020, 31 patients with suspected SAH were referred to our neurosurgical unit following negative CT and traumatic LP. A repeat LP was performed in 7 of the 31 patients, 2.4 days (±0.79 SD) after the first traumatic LP. CSF spectrophotometry analysis from repeated LP in all 7 patients was negative for xanthochromia. No adverse clinical events were recorded on average 18 months following discharge. CONCLUSION A repeat LP performed following a traumatic tap can still yield xanthochromia-negative CSF, thereby, excluding SAH, avoiding unnecessary invasive angiography and overall promoting the safer management of these patients.
Collapse
Affiliation(s)
- Musa China
- Department of Medicine, University College London (UCL) Medical School, London, UK
| | - Samir A Matloob
- Victor Horsley Department of Neurosurgery, The National Hospital for Neurology and Neurosurgery, London, UK
| | - Joan P Grieve
- Victor Horsley Department of Neurosurgery, The National Hospital for Neurology and Neurosurgery, London, UK
| | - Ahmed K Toma
- Victor Horsley Department of Neurosurgery, The National Hospital for Neurology and Neurosurgery, London, UK
| |
Collapse
|
30
|
Srinivas S, Retson T, Simon A, Hattangadi-Gluth J, Hsiao A, Farid N. Quantification of hemodynamics of cerebral arteriovenous malformations after stereotactic radiosurgery using 4D flow magnetic resonance imaging. J Magn Reson Imaging 2020; 53:1841-1850. [PMID: 33354852 DOI: 10.1002/jmri.27490] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 12/10/2020] [Accepted: 12/11/2020] [Indexed: 12/26/2022] Open
Abstract
Stereotactic radiosurgery (SRS) is used to treat cerebral arteriovenous malformations (AVMs). However, early evaluation of efficacy is difficult as structural magnetic resonance imaging (MRI)/magnetic resonance angiography (MRA) often does not demonstrate appreciable changes within the first 6 months. The aim of this study was to evaluate the use of four-dimensional (4D) flow MRI to quantify hemodynamic changes after SRS as early as 2 months. This was a retrospective observational study, which included 14 patients with both pre-SRS and post-SRS imaging obtained at multiple time points from 1 to 27 months after SRS. A 3T MRI Scanner was used to obtain T2 single-shot fast spin echo, time-of-flight MRA, and postcontrast 4D flow with three-dimensional velocity encoding between 150 and 200 cm/s. Post-hoc two-dimensional cross-sectional flow was measured for the dominant feeding artery, the draining vein, and the corresponding contralateral artery as a control. Measurements were performed by two independent observers, and reproducibility was assessed. Wilcoxon signed-rank tests were used to compare differences in flow, circumference, and pulsatility between the feeding artery and the contralateral artery both before and after SRS; and differences in nidus size and flow and circumference of the feeding artery and draining vein before and after SRS. Arterial flow (L/min) decreased in the primary feeding artery (mean: 0.1 ± 0.07 vs. 0.3 ± 0.2; p < 0.05) and normalized in comparison to the contralateral artery (mean: 0.1 ± 0.07 vs. 0.1 ± 0.07; p = 0.068). Flow decreased in the draining vein (mean: 0.1 ± 0.2 vs. 0.2 ± 0.2; p < 0.05), and the circumference of the draining vein also decreased (mean: 16.1 ± 8.3 vs. 15.7 ± 6.7; p < 0.05). AVM volume decreased after SRS (mean: 45.3 ± 84.8 vs. 38.1 ± 78.7; p < 0.05). However, circumference (mm) of the primary feeding artery remained similar after SRS (mean: 15.7 ± 2.7 vs. 16.1 ± 3.1; p = 0.600). 4D flow may be able to demonstrate early hemodynamic changes in AVMs treated with radiosurgery, and these changes appear to be more pronounced and occur earlier than the structural changes on standard MRI/MRA. Level of Evidence: 4 Technical Efficacy Stage: 1.
Collapse
Affiliation(s)
- Shanmukha Srinivas
- Department of Radiology, University of California-San Diego, San Diego, California, USA
| | - Tara Retson
- Department of Radiology, University of California-San Diego, San Diego, California, USA
| | - Aaron Simon
- Department of Radiation Medicine and Applied Sciences, University of California-San Diego, San Diego, California, USA
| | - Jona Hattangadi-Gluth
- Department of Radiation Medicine and Applied Sciences, University of California-San Diego, San Diego, California, USA
| | - Albert Hsiao
- Department of Radiology, University of California-San Diego, San Diego, California, USA
| | - Nikdokht Farid
- Department of Radiology, University of California-San Diego, San Diego, California, USA
| |
Collapse
|
31
|
Brooks DC, Schindler JL. Vertebral Artery Stenosis. CURRENT TREATMENT OPTIONS IN CARDIOVASCULAR MEDICINE 2020. [DOI: 10.1007/s11936-020-00832-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
32
|
Factors Associated with Procedural Thromboembolisms after Mechanical Thrombectomy for Acute Ischemic Stroke. MEDICINA-LITHUANIA 2020; 56:medicina56070353. [PMID: 32708763 PMCID: PMC7404711 DOI: 10.3390/medicina56070353] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 07/13/2020] [Accepted: 07/14/2020] [Indexed: 11/17/2022]
Abstract
Background and objective: Procedural thromboembolisms after mechanical thrombectomy (MT) for acute ischemic stroke has rarely been studied. We retrospectively evaluated factors associated with procedural thromboembolisms after MT using diffusion-weight imaging (DWI) within 2 days of MT. Materials and Methods: From January 2018 to March 2020, 78 patients with acute ischemic stroke who underwent MT were evaluated using DWI. Procedural thromboembolisms were defined as new cerebral infarctions in other territories from the occluded artery on DWI after MT. Results: Procedural thromboembolisms were observed on DWI in 16 patients (20.5%). Procedural thromboembolisms were associated with old age (73.8 ± 8.18 vs. 66.8 ± 11.2 years, p = 0.021), intravenous (IV) thrombolysis (12 out of 16 (75.0%) vs. 25 out of 62 (40.3%), p = 0.023), heparinization (4 out of 16 (25.0%) vs. 37 out of 62 (59.7%), p = 0.023), and longer procedural time (90.9 ± 35.6 vs. 64.4 ± 33.0 min, p = 0.006). Multivariable logistic regression analysis revealed that procedural thromboembolisms were independently associated with procedural time (adjusted odds ratio (OR); 1.020, 95% confidence interval (CI); 1.002–1.039, p = 0.030) and IV thrombolysis (adjusted OR; 4.697, 95% CI; 1.223–18.042, p = 0.024). The cutoff value of procedural time for predicting procedural thromboembolisms was ≥71 min (area under the curve; 0.711, 95% CI; 0.570–0.851, p = 0.010). Conclusions: Procedural thromboembolisms after MT for acute ischemic stroke are significantly associated with longer procedural time and IV thrombolysis. This study suggests that patients with IV thrombolysis and longer procedural time (≥71 min) are at a higher risk of procedural thromboembolisms after MT for acute ischemic stroke.
Collapse
|
33
|
Ramachandran S, Mukherjee D, Delf J, Bown MJ, Kandiyil N. A comparison of arterial spin labelling with catheter angiography in evaluating arteriovenous malformations: a systematic review. Br J Radiol 2020; 93:20190830. [PMID: 32208976 PMCID: PMC10993222 DOI: 10.1259/bjr.20190830] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 03/10/2020] [Accepted: 03/12/2020] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES To compare the performance of arterial spin labelling (ASL) in evaluating arteriovenous malformations (AVMs) against the current gold standard of catheter angiography. METHODS We systematically reviewed the published literature using EMBASE and Medline. We included studies that compared ASL to catheter angiography in the assessment of AVMs in three outcome domains: detection, angioarchitectural and haemodynamic features. RESULTS From 314 unique citations, 19 studies representing 289 patients with intracranial AVMs met our inclusion criteria. We did not pool data due to marked heterogeneity in study outcome measures. Seven studies showed high diagnostic performance of ASL in identifying arterial feeders, with sensitivity ranging from 84.6 to 100% and specificity ranging from 93.3 to 100%. Six studies showed strong ability in detecting arteriovenous shunting, with sensitivity ranging from 91.7 to 100% and specificity ranging from 90 to 100%. Seven studies demonstrated that ASL could identify nidal location and size as well as catheter angiography, while five studies showed relatively poorer performance in delineating venous drainage. Two studies showed 100% sensitivity of ASL in the identification of residual or obliterated AVMs following stereotactic radiosurgery. CONCLUSIONS Despite limitations in the current evidence base and technical challenges, this review suggests that ASL has a promising role in the work-up and post-treatment follow-up of AVMs. Larger scale prospective studies assessing the diagnostic performance of ASL are warranted. ADVANCES IN KNOWLEDGE ASL demonstrates overall validity in the evaluation of intracranial AVMs.
Collapse
Affiliation(s)
- Sanjeev Ramachandran
- University Hospitals of Leicester NHS Trust,
Leicester, United Kingdom
- University of Leicester,
Leicester, United Kingdom
| | - Deyashini Mukherjee
- University Hospitals of Leicester NHS Trust,
Leicester, United Kingdom
- University of Leicester,
Leicester, United Kingdom
| | - Jonathan Delf
- University Hospitals of Leicester NHS Trust,
Leicester, United Kingdom
| | - Matthew James Bown
- University Hospitals of Leicester NHS Trust,
Leicester, United Kingdom
- University of Leicester,
Leicester, United Kingdom
| | - Neghal Kandiyil
- University Hospitals of Leicester NHS Trust,
Leicester, United Kingdom
- University of Leicester,
Leicester, United Kingdom
| |
Collapse
|
34
|
Destrebecq V, Sadeghi N, Lubicz B, Jodaitis L, Ligot N, Naeije G. Intracranial Vessel Wall MRI in Cryptogenic Stroke and Intracranial Vasculitis. J Stroke Cerebrovasc Dis 2020; 29:104684. [DOI: 10.1016/j.jstrokecerebrovasdis.2020.104684] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Revised: 01/10/2020] [Accepted: 01/18/2020] [Indexed: 12/16/2022] Open
|
35
|
Lakhal K, Rodie-Talbere PA, Alexandre PL, Testard N, Rozec B, Daumas-Duport B. Continuous intravenous milrinone for severe reversible cerebral vasoconstriction syndrome (a case report). J Neurol Sci 2019; 397:55-57. [PMID: 30590342 DOI: 10.1016/j.jns.2018.12.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 12/17/2018] [Accepted: 12/19/2018] [Indexed: 12/25/2022]
Affiliation(s)
- Karim Lakhal
- Réanimation chirurgicale polyvalente, Service d'anesthésie-réanimation, Hôpital Laënnec, Centre hospitalier universitaire de Nantes, F-44093 Nantes, France.
| | - Pierre-André Rodie-Talbere
- Réanimation chirurgicale polyvalente, Service d'anesthésie-réanimation, Hôpital Laënnec, Centre hospitalier universitaire de Nantes, F-44093 Nantes, France.
| | - Pierre-Louis Alexandre
- Service de radiologie, Hôpital Laënnec, Centre hospitalier universitaire de Nantes, F-44093 Nantes, France.
| | - Nathalie Testard
- Service de neurologie, Hôpital Laënnec, Centre hospitalier universitaire de Nantes, F-44093 Nantes, France.
| | - Bertrand Rozec
- Réanimation chirurgicale polyvalente, Service d'anesthésie-réanimation, Hôpital Laënnec, Centre hospitalier universitaire de Nantes, F-44093 Nantes, France; Institut du thorax, INSERM, CNRS, UNIV Nantes, CHU Nantes, Nantes, France.
| | - Benjamin Daumas-Duport
- Service de radiologie, Hôpital Laënnec, Centre hospitalier universitaire de Nantes, F-44093 Nantes, France.
| |
Collapse
|