Fenestrations of the posterior communicating artery (PCom) are rare vascular variants, and their association with aneurysm formation is uncommon. This report describes a ruptured aneurysm from a PCom fenestration, successfully managed with the Nautilus intrasaccular neck-bridging device. The patient presented with subarachnoid hemorrhage, and 3D-angiography showed a wide-necked aneurysm at the origin of a fenestrated PCom. Endovascular embolization using the Nautilus device and coil placement led to complete aneurysm occlusion while preserving the parent vessel. The patient recovered without neurological deficits, and a 12-month angiographic follow-up confirmed stable occlusion. This case demonstrates the technical feasibility and safety of the Nautilus device in treating complex ruptured aneurysms associated with rare vascular variants, contributing to the limited literature on PCom fenestration aneurysms. KEY POINTS: Fenestrations of the posterior communicating artery (PCom) are extremely rare, with only a few cases described in the literature. Aneurysms arising from PCom fenestration are even more uncommon and represent a technical challenge for both surgical and endovascular treatment. We report a ruptured aneurysm at a PCom fenestration successfully treated with the Nautilus neck-bridging device. This case illustrates the feasibility of Nautilus in complex ruptured aneurysms and ads to the scarce literature on PCom fenestrations and their association with aneurysms.

To compare short (TR = 7000 ms) and long (TR = 10000 ms) repetition time 3D-real inversion recovery (IR) sequences with 3D-FLAIR MRI in terms of image quality and diagnostic performance for evaluating endolymphatic hydrops (EH) after a single intravenous dose of gadobutrol in patients with unilateral Ménière's disease.

The Woven EndoBridge (WEB) device is an intrasaccular flow disruptor designed for the treatment of wide-neck intracranial bifurcation aneurysms. The purpose of this study was to evaluate various factors associated with clinical and angiographic outcomes following WEB treatment.

This study aimed to optimize three-dimensional real inversion recovery (3D-real IR) with T2 preparation (T2Prep) protocols to improve perilymphatic enhancement (PE) and endolymphatic hydrops (EH) detection.

This study investigated glymphatic function in tremor disorders using the diffusion tensor imaging-derived ALPS (analysis-along-the-perivascular-space) index, a non-invasive surrogate of perivascular fluid movement.

Ventriculomegaly (VM) is the fetal central nervous system (CNS) anomaly most commonly represented in prenatal imaging. It is defined as a lateral ventricle of dimensions greater than or equal to 10 mm; it can be unilateral or bilateral. More generally, hydrocephalus is defined as an imbalance between brain parenchyma and cerebrospinal fluid (CSF) due to an abnormal increase of the latter within the ventricles in an almost bilateral manner. To identify ventriculomegaly and categorize its severity, the appropriate imaging and measurement methods are crucial. Clinical outcomes vary greatly because of the wide differential diagnosis. Furthermore, there is a significant chance that these causes may recur in subsequent pregnancies. Pregnancy care and counseling depend on a precise diagnosis of the underlying cause.

Deep learning-based reconstruction techniques, such as the prototype DL-Speed, have been developed to accelerate 3D T1-weighted imaging, but their clinical utility and impact on quantitative analysis have not been systematically validated. The purpose of this study is to evaluate the utility of a deep learning-based reconstruction method for substantially accelerating image acquisition without compromising quantitative image quality and morphometry.

Our aim was to evaluate the incidence and time course of new contrast-enhancing lesions (CEL) after high-dose irradiation therapy (RT) with protons or photons in adult glioma patients.

The optimal antiplatelet therapy for patients on continuous oral anticoagulants (OACs) who are undergoing coil embolization for unruptured intracranial aneurysms (UIAs) is remains unknown. This study evaluated the efficacy and safety of single- (SAPT) and dual antiplatelet therapy (DAPT) in patients taking OACs who underwent coil embolization for UIAs.

The Low-profile visualized Intraluminal Support EVO (LVIS EVO) is a next-generation braided stent characterized by enhanced visibility and resheathability, and designed for stent-assisted coil embolization of intracranial aneurysms. Despite growing adoption, real-world data on its efficacy and safety remain limited.

To review recent advances in structural MRI post-processing for pediatric drug-resistant epilepsy, with emphasis on artificial intelligence-driven and quantitative techniques, including MELD-Graph, MAP18, FLAT1, and SUPR-FLAIR, and to evaluate their impact on lesion detection, epileptogenic zone localization, and presurgical planning.

The right and left lateral ventricles are symmetrically positioned and typically mirror each other by size and shape. Therefore, they often serve as a primary reference point on magnetic resonance imaging (MRI) scans. However, volumetric ventricular asymmetry is a frequent radiological finding. In this study, we aimed to assess whether one ventricle is, on average, larger than the other.

Task-based fMRI (tb-fMRI) has emerged as a promising imaging modality for determination of language lateralization in patients undergoing neurosurgery, largely replacing the invasive gold standard Wada test. However, its applicability in pediatric populations remains uncertain due to the unique characteristics of the developing pediatric brain. This meta-analysis and systematic review aim to synthesize existing data on the concordance rates of tb-fMRI and the intracarotid amobarbital test (IAT) in children undergoing neurosurgery.

To investigate the morphological variability of the posterior inferior cerebellar artery (PICA) origin utilizing computed tomography angiography (CTA) within a substantial adult cohort, and to establish a refined, clinically pertinent classification system for neuroradiologists and neurosurgeons.

In patients with non-lesional epilepsy, MR imaging detects no structural or functional abnormalities. The aim of this study was to determine whether subtle local reductions or increases in brain volume, undetectable to the human eye, can indicate an epileptic focus directly or indirectly. To address this, we performed brain volumetry using 7T MRI.

This study validated VParNet and nnU-Net for ventricular segmentation in pediatric hydrocephalus, a condition characterized by irregular and asymmetric ventricular shapes.

To explore a novel approach for the early prediction of malignant cerebral edema (MCE) in stroke patients using radiomics features extracted from dual-energy computed tomography angiography (DE-CTA) reconstructed images of infarcted brain tissue.