Intracranial aneurysm stiffness assessment using 4D Flow MRI
Although arterial stiffness is known as a biomarker for cardiovascular events and stroke, there is limited information in the literature regarding the stiffness of intracranial aneurysms. In this study, we aim to assess the stiffness of intracranial aneurysms using 4D Flow MRI.
Progressive T1 high-intensity plaques in carotid stenosis: Comparative MRI analyses in asymptomatic and symptomatic phases of low-grade stenosis
Carotid artery stenosis, particularly the progression from asymptomatic to symptomatic lesions, is a key factor in cerebrovascular events. This study identifies predictors of symptom development in low-grade carotid stenosis (<50%), focusing on intraplaque hemorrhage (IPH) and dynamic plaque changes.
Assessment of large-scale imaging practices in patients with acute brain hemorrhage in French emergency departments: Emergency imaging practices in hemorrhagic stroke
Intracerebral hemorrhage (ICH) is a life-threatening condition, where imaging plays a crucial role but remains poorly standardized. Our main objective was to analyze the imaging protocols used during the acute phase of ICH and ascertain the proportion of patients diagnosed with secondary hemorrhage.
Deep learning segmentation-based bone removal from computed tomography of the brain improves subdural hematoma detection
Timely identification of intracranial blood products is clinically impactful, however the detection of subdural hematoma (SDH) on non-contrast CT scans of the head (NCCTH) is challenging given interference from the adjacent calvarium. This work explores the utility of a NCCTH bone removal algorithm for improving SDH detection.
Intra-operative use of Augmented Reality for 3D visualisation of rotational angiography data: Feasibility and workflow demonstration using a PCOM aneurysm case
In this Neuro-Interventional Video, we demonstrate a novel Augmented Reality (AR) platform for visualising vascular imaging data during interventional procedures. The platform allows clinicians to interact with 3D patient data through head-mounted displays while remaining sterile. Our workflow converts rotational angiography data to 3D models in real-time, and enables intuitive hand-tracked manipulation of patient data, including tools for cropping, size measurement, and C-arm projection assessment. We show how AR can enhance understanding of patient vascular pathology.
Impaired iron metabolism and cerebral perfusion patterns in unilateral middle cerebral artery stenosis or occlusion: Insights from quantitative susceptibility mapping
Cerebral hypoperfusion caused by stenosis or occlusion of the middle cerebral artery (MCA) may be followed by impaired iron metabolism. We explored the association between iron changes of gray matter (GM) nuclei subregions and different cerebral perfusion patterns in patients with chronic unilateral middle cerebral artery (MCA) stenosis or occlusion using quantitative susceptibility imaging (QSM).
Using the sandwich technique for the treatment of sigmoid sinus diverticulum causing pulsatile tinnitus
PET-MRI neuroimaging of neurovascular uncoupling related to BBB dysfunction: beyond mild traumatic injury
Association of baseline blood pressure and outcomes in etiology subtypes of large vessel occlusion stroke: Data from ANGEL-ACT registry
Blood pressure (BP) management at the initial stage of stroke caused by large-vessel occlusion (LVO) remains challenging. We assessed the association between baseline BP and clinical and safety outcomes of endovascular treatment (EVT) in different stroke etiologies.
Parallel placement of Woven EndoBridge (WEB) device for the treatment of wide-necked lobulated aneurysms at the basilar tip
Meditation mindfulness and hypnosis: We know they work, but just how do they work?
Pediatric cervical spine clearance after blunt trauma and negative CT: What is the role of MRI?
The cervical spine in children has marked anatomical and biomechanical differences compared to adults, leading to significantly different patterns and incidence of spinal injury, and consequently to different X-ray and computed tomography (CT) imaging recommendations. Magnetic resonance imaging (MRI) has been validated to clear cervical spine trauma in adults, but not in pediatric patients. We hypothesized that MRI findings have a low probability to change management in children with spine trauma and negative CT findings.
Abnormalities in spontaneous brain activity and functional connectivity are associated with cognitive impairments in children with type 1 diabetes mellitus
It remains unclear whether alterations in brain function occur in the early stage of pediatric type 1 diabetes mellitus(T1DM). We aimed to examine changes in spontaneous brain activity and functional connectivity (FC) in children with T1DM using resting-state functional magnetic resonance imaging (rs-fMRI), and to pinpoint potential links between neural changes and cognitive performance.
Endovascular approach to posterior spinal cord AV shunts via the anterior spinal artery
Intradural spinal cord arteriovenous shunts are challenging vascular lesions with poor prognosis if left untreated. Therapeutic options include endovascular treatment, microsurgery or a combined approach. Surgical approaches are more complex if the lesions are located anteriorly and supplied by the anterior spinal artery (ASA). ASA can also vascularize shunts located on the posterior surface of the spinal cord either by transmedullary arteries, pial circumferential arteries or, if affecting the lower portions of the cord, by the anastomotic channels of the basket. Each of these vessels can be used for endovascular navigation to reach the shunts with good results if appropriate anatomical rules are followed. We describe here some technical considerations based on the anatomical analysis for the embolization of posterior spinal cord arteriovenous shunts vascularized by the anterior spinal artery.
Fetal and postnatal neuroimaging of SUZ12-related overgrowth: Imagawa-matsumoto syndrome
Simultaneous arterial spin labeling functional MRI and fluorodeoxyglucose PET in mild chronic traumatic brain injury
To determine the effect of mild chronic traumatic brain injury (cTBI) on cerebral blood flow and metabolism.
The importance of arterial systolic pressure (Push) in successful first pass aspiration technique for endovascular thrombectomy
Reply to "Successful recanalization because of the pressure differential between arterial systolic pressure (Push) and vacuum level created by the vacuum source (Pull)"
A call for junior neuroradiologists to join the "Jeunes Enthousiastes en neuroradiologie DIagnostique" - Research Collaboration (JEDI-RC)
Let's find out about Article-Based Publishing (ABP)/Article Numbering (AN)
Deep learning-based noise reduction preserves quantitative MRI biomarkers in patients with brain tumors
The use of relaxometry and Diffusion-Tensor Imaging sequences for brain tumor assessment is limited by their long acquisition time. We aim to test the effect of a denoising algorithm based on a Deep Learning Reconstruction (DLR) technique on quantitative MRI parameters while reducing scan time. In 22 consecutive patients with brain tumors, DLR applied to fast and noisy MR sequences preserves the mean values of quantitative parameters (Fractional anisotropy, mean Diffusivity, T1 and T2-relaxation time) and produces maps with higher structural similarity compared to long duration sequences. This could promote wider use of these biomarkers in clinical setting.