Comparison of silent MRA and time-of-flight MRA in the depiction and grading of brain arteriovenous malformations.

Background: Preliminary small-sample studies suggest that silent magnetic resonance angiography (MRA) has an advantage over time-of-flight MRA (TOF MRA) in the characterization of brain arteriovenous malformation (BAVM), but did not examine whether the imaging performance of silent MRA was affected by the intrinsic features of BAVM or common clinical factors. This study sought to compare silent MRA and TOF MRA in terms of the visualization and grading of BAVMs in various clinical settings.

Methods: In total, 85 participants (50 males, 35 females; mean age: 33.

Reconstructive endovascular treatment of patients with ruptured distal intracranial aneurysms in posterior circulation: a retrospective cohort study.

Background: Cases of ruptured distal intracranial aneurysms (DIAs) in the posterior circulation are rare. Currently, the most commonly used approach in clinical practice to treat this condition is reconstructive endovascular treatment. However, research on endovascular treatment of intracranial posterior circulation ruptured DIAs is currently lacking.

Endovascular treatment of high-flow carotid-cavernous fistula secondary to rupture of a carotid-cavernous aneurysm post-flow diverter stent placement.

Carotid-cavernous aneurysms (CCAs) have the potential for growth, and their risk of rupture can lead to severe complications. Treatment is typically recommended to prevent these complications, with endovascular therapy being the preferred approach due to the challenging surgical access. This case presents a rare instance of rupture of a CCA that had been previously treated with a flow-diverting stent, which resulted in the development of a carotid-cavernous fistula, requiring venous access endovascular treatment.

A Complex Pediatric Vertebrobasilar Junction Aneurysm Treated using a Flow Diverter with Coiling: Case Report and Management Strategy.

Pediatric intracranial aneurysms (PIAs) are highly uncommon, with an incidence of <5% (0.17 to 4.6%) and <2% of PIA complicates into an aneurysmal hemorrhage.

Treatment of unruptured intracranial vertebral artery dissection aneurysms with Flow Diverter compared with conventional stent-assisted coiling-a single-center study.

Aim: Flow diverters (FDs) are being increasingly used off-label for treatment of intracranial vertebral artery dissection aneurysms (IVADAs). However, the safety and efficacy of FDs for unruptured IVADAs remain unclear. This study was performed to investigate whether FDs-alone are safer and more effective than conventional stent-asisted coiling.

The value of dual-energy computed tomography angiography-based virtual monoenergetic imaging for evaluations after cerebral aneurysm clipping.

Purpose: This study aimed to research the optimal energy range of dual-energy computed tomography angiography (DECTA)-based virtual monoenergetic imaging (VMI) for evaluations after cerebral aneurysm clipping.

Methods: Sixty patients who underwent DECTA after cerebral aneurysm clipping were analyzed retrospectively. Conventional computed tomography angiography (CTA) was compared with VMIs at 60, 70, 80, 90, and 100 keV.

Artificial intelligence in emergency neuroradiology: Current applications and perspectives.

Emergency neuroradiology provides rapid diagnostic decision-making and guidance for management for a wide range of acute conditions involving the brain, head and neck, and spine. This narrative review aims at providing an up-to-date discussion about the state of the art of applications of artificial intelligence in emergency neuroradiology, which have substantially expanded in depth and scope in the past few years. A detailed analysis of machine learning and deep learning algorithms in several tasks related to acute ischemic stroke involving various imaging modalities, including a description of existing commercial products, is provided.

The ELVIS study: Medium and long-term Efficacy of LVIS EVO stent-assisted coil embolisation for unruptured saccular intracranial aneurysms-A tertiary single-centre experience.

Introduction: The LVIS EVO (MicroVention) is a braided stent designed to assist coil embolisation of intracranial aneurysms. It offers several structural innovations over previous and currently available braided, and laser-cut, stents that are theorised to improve procedural success. This retrospective audit aims to determine the success and complication rates of LVIS EVO-assisted coil embolisation in unruptured saccular aneurysms at a tertiary neurovascular referral centre in Queensland, Australia.

Iatrogenic cervical artery dissections during endovascular interventions.

Background: Iatrogenic cervical artery dissection (CeAD) results from various procedures including interventional angiographic procedures and diagnostic angiography. Iatrogenic CeAD is rare, resulting in limited literature on management and outcomes. This observational cohort study investigates approaches and outcomes of iatrogenic CeAD after endovascular interventions.

Successful Graft Retrieval for Liver Transplant in a Donor With an Infrarenal Aortic Aneurysm.

With increased use of extended criteria liver donors, there is a higher incidence of previously unknown intra-abdominal pathologies, including abdominal aortic aneurysms, which are being accidentally found during organ procurement. These findings often involve technical difficulties that challenge organ procurement teams and potentially put at risk the success of organ retrieval and eventual transplant. In this case report, we present a novel case of a successful liver retrieval from a donor with brain death who was incidentally found to have an infrarenal aortic aneurysm that spared both iliac arteries.

MINOCA as the result of coronary artery aneurysm thrombosis.

Myocardial infarction (MI) can be caused by many factors. In addition to the typical obstruction or stenosis of the coronary arteries, there is heterogenic MI with non-obstructive coronary arteries (MINOCA). A rare cause of MINOCA is the thrombosis of a coronary artery aneurysm (CAA).

Associations between Toll-like receptor 4 Asp299Gly polymorphism and susceptibility to intracranial aneurysm among male and female patients within the North Indian population.

Objectives: Intracranial aneurysms (IA), often remain asymptomatic until they get ruptured, invariably leads to subarachnoid hemorrhage (SAH), and is influenced by both genetic and environmental factors. Recent studies indicated inflammation as a key player in IA development. This study delves into genetic variations within inflammatory pathways, focusing on TLR4-mediated cytokine release as potential IA biomarkers.

Aneurysm clipping on WEB device: A feasibility study using a human ex-vivo aneurysm model.

Background And Objectives: The Woven EndoBridge (WEB) device is a breakthrough in brain aneurysm treatment, widely used for intracranial wide neck and complex aneurysms, especially at bifurcations. Although effective, aneurysm recurrence can occur post-treatment and the impact of clipping angle on the WEB mesh remains unclear. In this study, using a human placenta-based ex-vivo aneurysm model, we simulated the application of aneurysm clipping on WEB-treated aneurysms to elucidate the technical aspects and nuances, particularly the influence of the angle of clip application on WEB collapse.

Combined transpetrosal-transtentorial approach with occipital artery - anterior inferior cerebellar artery bypass and aneurysm clipping for a lower basilar artery aneurysm involving anterior inferior cerebellar artery: Two-dimensional operative video.

Background: Aneurysms of the lower basilar artery (BA) are rare, accounting for <1% of all intracranial aneurysms. This location has been described as "No man's land" since it poses a potential challenge for microsurgery. Recently, endovascular treatment has become an alternative option; however, there are some disadvantages regarding the obliteration rate, patency of the parent, and perforating arteries.

Comparison of antithrombogenic coated and uncoated flow diverters in ruptured and unruptured cerebral aneurysms.

Background And Purpose: Flow diversion has become a key treatment option for complex intracranial aneurysms. Recent advancements include coated flow diverters (FDs), designed to potentially reduce the need for dual antiplatelet therapy, thereby removing the associated secondary risks while maintaining patency and low complication rates. Comparing coated and uncoated FDs may offer insights into long-term outcomes and treatment optimization.

Letter to Editor Regarding "Use of Artificial Intelligence Software to Detect Intracranial Aneurysms: A Comprehensive Stroke Center Experience".

Artificial intelligence (AI) is increasingly significant in neurosurgery, enhancing differential diagnosis, preoperative evaluation, and surgical precision. A recent study in World Neurosurgery evaluated AI's role in aneurysm detection, comparing conventional computed tomography angiography images with AI analysis. AI identified 33 potential aneurysms, with 16 confirmed by radiologists, demonstrating a sensitivity of 36%, specificity of 97.

Assessing flow diverter porosity: a comparative analysis of quantification techniques based on imaging and simulation.

Background/purpose: Flow diverter porosity directly influences the blood flow reduction at the aneurysm neck level and the anatomical result of the treatment. In this research, we present and compare three methodologies to determine the local porosity of deployed flow diverters.

Method: Three-dimensional rotational angiography was used to obtain computational vessel models of three patients.

Small basilar artery fenestration mimicking an aneurysm.

Fenestration of the basilar artery is a well-known anatomical variant which can be misdiagnosed as arterial dissection. Misdiagnosis as an aneurysm is also possible and has been reported. A 41-year-old woman was referred to our hospital for evaluation of a suspected aneurysm of the proximal basilar artery trunk found on 1.