Neuroradiology Journal最新文献

{"title":"Role of 3D-CISS sequence in differentiating cerebellopontine meningiomas from schwannomas.","authors":"R S Mourão, N Ventura, D G Corrêa","doi":"10.1177/19714009251393209","DOIUrl":"10.1177/19714009251393209","url":null,"abstract":"<p><p>PurposeDifferentiating cerebellopontine meningioma (CPM) from schwannoma (CPS) can be challenging. In this location, schwannomas alter the composition of the perilymphatic fluid differently from meningiomas, which has repercussions on magnetic resonance imaging. This study aims to distinguish between these tumors based on the labyrinthine fluid signal on 3D-CISS.MethodsPatients with histologically confirmed CPM and CPS were selected. Analyses were performed considering visual signal intensity from the vestibule and cochlea, and the signal ratios between the vestibules (aV/uV) and the cochleae (aC/uC) on affected and unaffected sides. The signal intensity ratio between vestibule and cerebellum (aV/aCH), vestibule and cerebrospinal fluid (aV/aCSF), and cochlea and cerebrospinal fluid (aC/aCSF), on affected sides, as well as the vestibule and cerebellum ratio between affected and unaffected sides ([aV/aCH]: [uV/uCH]), were also compared.ResultsStatistically significant differences were demonstrated for visual signal reduction (<i>p</i> < .001) and for aV/uV (<i>p</i> = .005), aC/uC (<i>p</i> < .001), [aV/aCH]: [uV/uCH] (<i>p</i> = .018), aV/aCSF (<i>p</i> = .036), and aC/aCSF (<i>p</i> = .001) ratios, with lower values associated with schwannomas. The aC/aCSF ratio showed the highest accuracy (84.2%), with a cutoff value of 0.63, and the second-largest area under the Receiver Operating Characteristic (ROC) curve (0.791). The visual reduction of cochlear signal showed the second-highest accuracy (83%). The aC/uC ratio demonstrated the largest area under the ROC curve (0.857) and the third-highest accuracy (75.5%), using 0.74 as the cutoff value.ConclusionThe visual reduction of cochlear signal and the aC/uC and aC/aCSF ratios proved to be the most effective parameters for distinguishing CPM from CPS when the labyrinthine fluid is utilized.</p>","PeriodicalId":47358,"journal":{"name":"Neuroradiology Journal","volume":" ","pages":"492-500"},"PeriodicalIF":1.2,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12602289/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145483351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Carotid artery stenting with pre-stenting dilatation alone: Safety and efficacy.","authors":"Kamran Hajiyev, Philipp von Gottberg, Ali Khanafer, Michael Forsting, Hansjörg Bäzner, Hans Henkes","doi":"10.1177/19714009251393193","DOIUrl":"10.1177/19714009251393193","url":null,"abstract":"<p><p>BackgroundCarotid artery stenting (CAS) is an established alternative to carotid endarterectomy for the treatment of atherosclerotic carotid stenosis. However, periprocedural ischemic stroke remains a concern, partly influenced by device selection and procedural technique. The optimal dilatation strategy, particularly the role of pre- and post-stenting balloon dilatation, remains debated. This study aimed to evaluate the safety and efficacy of CAS using pre-stenting dilatation alone compared with combined pre- and post-stenting dilatation.MethodsA retrospective analysis was conducted of 1248 CAS procedures performed in 1158 patients at a single neurovascular center (May 2009-December 2020). Baseline characteristics, procedural details, and outcomes were compared between cases with pre-stenting dilatation alone and those with additional post-stenting dilatation. The primary endpoint was the 30-day composite stroke rate; secondary outcomes included periprocedural adverse events and long-term in-stent restenosis (ISRS > 50%).ResultsPre-stenting dilatation was performed in all cases; additional post-stenting dilatation was used in 150 procedures (12%). The 30-day composite stroke rate was 2.6%, significantly lower in the pre-dilatation-alone group than in the combined group (2.1% vs. 7.2%; <i>p</i> = 0.003). At a median follow-up of 66 months, ISRS > 50% occurred in 5.9% of stents, with no significant difference between groups (5.9% vs. 5.7%).ConclusionsIn this large single-center experience, CAS using pre-stenting dilatation alone was associated with a lower periprocedural stroke rate and comparable long-term patency. These findings support a simplified procedural approach that may reduce embolic risk without compromising efficacy.</p>","PeriodicalId":47358,"journal":{"name":"Neuroradiology Journal","volume":" ","pages":"485-491"},"PeriodicalIF":1.2,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12568535/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145379216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Patterns of radiation-induced subependymal enhancement in patients with high-grade glioma.","authors":"Arpita Sahu, Daksh Mehta, Archya Dasgupta, Indraja Dev, Ameya Puranik, Kajari Bhattacharya, Ayushi Sahay, Epari Sridhar, Prakash Shetty, Aliasgar Moiyadi, Nandini Menon, Abhishek Chatterjee, Tejpal Gupta","doi":"10.1177/19714009251414342","DOIUrl":"10.1177/19714009251414342","url":null,"abstract":"<p><p>Background and purposeInterpretation of imaging findings after radiation can be challenging in patients with high-grade glioma. Appearance of contrast-enhancing lesions during follow-up imaging poses difficulty in differentiating true progression from treatment-related changes. In the current study, we report patterns and clinical outcomes of radiation-induced subependymal enhancement.Materials and methodsPatients with histopathological diagnosis of HGG developing radiation-induced contrast enhancement in the subependymal region were considered in the retrospective study. The subependymal enhancement was required to be in the high-dose region of radiotherapy. Patients underwent multiparametric magnetic resonance imaging (MRI), which included T1-contrast, T2-weighted, perfusion, and spectroscopy. Confirmation of radiation changes rather than disease progression was decided based on regression or stability of concerned findings on follow-up imaging.ResultsThirty-four patients were included in the analysis. The median time from radiotherapy to onset of subependymal enhancement was 15 months. The enhancement pattern was feathery, nodular, and linear in 53%, 35%, and 3% of patients, respectively. A T2-hyperintense signal with a hypointense rim was seen in 74% of patients. Majority of these lesions were isoperfused (26%) or hypoperfused (47%). The median radiological follow-up after onset of subependymal enhancement was 7 months (range 1-61 months). At final follow-up, complete resolution, partial regression, and stable findings of the concerned enhancement were seen in 18%, 38%, and 44%, respectively.ConclusionSubependymal enhancement can be seen following radiation, which should be considered during the evaluation of follow-up imaging. Multiparametric MRI with specific contrast patterns, T2-weighted findings, and perfusion imaging can help identify radiation-induced enhancement.</p>","PeriodicalId":47358,"journal":{"name":"Neuroradiology Journal","volume":" ","pages":"513-522"},"PeriodicalIF":1.2,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12774804/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145907004","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The laminar subarachnoid hemorrhage of infant venous stroke: Evidence of a 4^th meningeal layer?","authors":"Dale F Vaslow","doi":"10.1177/19714009251412118","DOIUrl":"10.1177/19714009251412118","url":null,"abstract":"<p><p><b>Background and Purpose:</b> Subarachnoid hemorrhage is commonly associated with a venous stroke. In infants with a chronic subdural hemorrhage a laminar SAH is produced by blood leakage from thrombosed cortical veins into a potential subarachnoid space previously unrecognized. This paper discusses how to distinguish a laminar SAH from a subdural hemorrhage. <b>Methods:</b> A retrospective review of 34 selected cases of infant venous stroke in the period 2014-2025 is based on neuroimaging studies. The cases selected are from unsolicited referrals from parents, attorneys, and physicians where caregivers are accused of abusive head trauma. <b>Results:</b> The median age is 3 months old. All 34 infants exhibit a venous stroke defined as the presence of a blood clot(s) in a venous sinus or cortical vein or SAH from a leaking thrombosed cortical vein. 33/34 cases feature an associated chronic subdural hemorrhage/hygroma. Thrombosed veins are located subjacent to the arachnoid membrane. 28/34 cases show multifocal (<2cm diameter) SAHs. 24/34 cases show laminar SAHs (>2cm diameter); 10/24 thin (<3mm) and 14/24 thick (>3mm). Intrasulcal SAH is infrequent. <b>Conclusion:</b> The laminar SAH is a non-gyral SAH distinguished from a subdural hemorrhage by its location and rapid resolution. Its combination with the adjacent chronic subdural hemorrhage is commonly and incorrectly described as a mixed density or layered subdural hemorrhage. The laminar SAH is hypothetically located between the arachnoid membrane and a trabecular coat investing the cortical veins. Alternately, it may suggest existence of a 4th meningeal layer recently discovered by anatomists in animal models.</p>","PeriodicalId":47358,"journal":{"name":"Neuroradiology Journal","volume":" ","pages":"523-531"},"PeriodicalIF":1.2,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12791005/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145949393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Imaging features of high-grade astrocytoma with piloid features: A single center case series.","authors":"Heba Al Qudah, Jackson D Hamilton, Maria A Gubbiotti, Ahmed Msherghi, Hamza A Salim, Sahar Alizada, Ho-Ling Liu, Vinodh A Kumar, Max Wintermark, Rami W Eldaya","doi":"10.1177/19714009251395689","DOIUrl":"10.1177/19714009251395689","url":null,"abstract":"<p><p>High-grade astrocytoma with piloid features (HGAP) is a recently described IDH-wildtype tumor with limited literature describing its imaging features. We present our institution's experience and the largest imaging-focused cohort of HGAP reported to date, offering a comprehensive analysis of MRI features of seventeen intracranial and one spinal HGAP, while introducing novel imaging features that have not been previously described. These include focal areas of diffusion restriction, surrounding spiculated, finger-like enhancement and increased perfusion metrics. Additionally, we highlight imaging features of HGAP arising in patients with Neurofibromatosis Type 1, such as intraventricular tumor spread, unusual temporal lobe location and multifocal presentation.</p>","PeriodicalId":47358,"journal":{"name":"Neuroradiology Journal","volume":" ","pages":"501-512"},"PeriodicalIF":1.2,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12619698/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145524126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Beyond ASPECTS: A Practical Guide to CT Perfusion Interpretation.","authors":"Raphael Miller, Ryan Morasse, Nicholas Clayton, Ashley Park, Anna Tarasova, Daniel J Masri, Anna Derman","doi":"10.1177/19714009251387297","DOIUrl":"10.1177/19714009251387297","url":null,"abstract":"<p><p>Computed tomography perfusion (CTP) imaging plays a pivotal role in the early evaluation of patients presenting with acute ischemic stroke (AIS), particularly by identifying candidates for endovascular thrombectomy. Accurate interpretation of CTP requires a structured approach that integrates technical understanding, clinical judgment, and recognition of the modality's limitations. This review was prompted by real clinical challenges faced by the senior author and aims to provide both a theoretical foundation and practical guidance for interpreting CTP. Key concepts are illustrated through real clinical scenarios and corresponding annotated images. In addition to reviewing current AHA/ASA guidelines, we discuss institutional best practices and highlight challenging clinical scenarios in which CTP can significantly influence treatment decisions. This article aims to equip clinicians with the knowledge and tools needed for consistent and effective use of CTP.</p>","PeriodicalId":47358,"journal":{"name":"Neuroradiology Journal","volume":" ","pages":"406-419"},"PeriodicalIF":1.2,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12571803/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145393601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Systematic review of WEBectomy in intracranial aneurysms.","authors":"João Paulo Liute Scarramal, Emmanuel Oberda Nominato, Leonardo Januário Campos Cardoso, Mariana Letícia de Bastos Maximiano, Leonardo Bo Brenner, Luiz Felipe Simões Antunes Nery Dos Santos, Vitoria Pinheiro, Felipe Dominici Castelo Branco, Raphael Bertani, Ahmet Günkan, Marcio Yuri Ferreira, David Gordon, Christian Ferreira","doi":"10.1177/19714009251393210","DOIUrl":"10.1177/19714009251393210","url":null,"abstract":"<p><p>PurposeEndovascular removal of the Woven EndoBridge device (WEBectomy) is rarely reported but crucial for managing complications such as migration, compaction, and malposition, which may lead to recurrence and retreatment. This review aimed to assess treatment strategies, outcomes, and complications associated with WEBectomy.MethodsWe searched PubMed, Embase, and Web of Science databases from inception to January 14,2025,following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines for studies reporting on cases of WEBectomy.ResultsEight studies with 16 patients (range age 30-89; 50% male) with 16 aneurysms were included. The basilar artery was the most common site in 25% (4/16) of the cases, and 50% (7/14) of the aneurysms were ruptured. Migration was the most frequent complication (11/16, 69%), followed by protrusion (4/16, 25%) and malposition (1/16, 6%) that required the removal of WEB. The Amplatz Goose Neck Microsnare was the most commonly used retrieval device (12/16, 75%), with no reported failures or major complications. Retreatment involved a new WEB in 50% (8/16) and coiling techniques in 31% (5/16). Among nine patients with follow-up imaging, most showed complete occlusion (67%, 6/9). Functional outcomes were favorable in 83% (4/6) (mRS 0-1).ConclusionReported cases show that WEBectomy can be successfully performed in selected situations, allowing tailored retreatment planning. However, due to the small number of cases and limited follow-up, no definitive conclusions about safety or efficacy can be drawn. This review provides a concise synthesis of current management strategies for this rare complication.</p>","PeriodicalId":47358,"journal":{"name":"Neuroradiology Journal","volume":" ","pages":"428-437"},"PeriodicalIF":1.2,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12592119/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145460204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Artificial intelligence in neuroradiology: From answers to judgment.","authors":"Luca Saba","doi":"10.1177/19714009261461118","DOIUrl":"10.1177/19714009261461118","url":null,"abstract":"","PeriodicalId":47358,"journal":{"name":"Neuroradiology Journal","volume":" ","pages":"403-405"},"PeriodicalIF":1.2,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13246496/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148200818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Differentiating leptomeningeal diseases through enhancement patterns: A pictorial essay.","authors":"Esra Akcicek, Ali Enes Aldur, Rahsan Gocmen","doi":"10.1177/19714009251407172","DOIUrl":"10.1177/19714009251407172","url":null,"abstract":"<p><p>Leptomeningeal diseases represent a diverse group of pathological conditions affecting the pia and arachnoid mater, encompassing a wide spectrum of infective-inflammatory, neoplastic, and vascular etiologies. Early and accurate diagnosis is crucial due to the often severe clinical implications and overlapping imaging features. This review provides a comprehensive overview of commonly encountered and some rare leptomeningeal diseases, emphasizing their pathophysiology, clinical manifestations, and distinctive imaging characteristics. We categorize these conditions based on their underlying etiology and highlight key differentiating features to facilitate accurate radiological interpretation. By integrating imaging findings with clinical background, this review aims to support neuroradiologists and clinicians in the effective evaluation and differential diagnosis of leptomeningeal diseases. Enhanced understanding of these pathologies will aid earlier diagnosis and optimal management, ultimately leading to better patient outcomes.</p>","PeriodicalId":47358,"journal":{"name":"Neuroradiology Journal","volume":" ","pages":"461-484"},"PeriodicalIF":1.2,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12716984/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145795164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Incidence of contrast-associated acute kidney injury differs by procedure type in neuroendovascular surgery.","authors":"Yaxiaerjiang Yalikun, Masakazu Hayashida, Masataka Fukuda, Atsuko Hara, Chieko Mitaka, Izumi Kawagoe","doi":"10.1177/19714009261473175","DOIUrl":"10.1177/19714009261473175","url":null,"abstract":"<p><p>BackgroundEvidence regarding the incidence and risk factors of contrast-associated acute kidney injury (CA-AKI) after neuroendovascular surgery (NES) remains limited. This study aimed to identify risk factors for CA-AKI after NES.MethodsWe retrospectively analyzed adolescent and adult patients who underwent NES under general anesthesia at our institution between 2014 and 2024. CA-AKI was defined as a serum creatinine increase ≥0.3 mg/dL within 48 h, or ≥1.5 times baseline within 7 days. Risk factors were assessed using logistic regression.ResultsAmong 2412 patients (840 males) aged 10-91 years, NES indications included unruptured cerebral aneurysm (UCA, <i>n</i> = 1808), carotid artery stenosis (CAS, <i>n</i> = 212), dural arteriovenous fistula (DAVF, <i>n</i> = 183), aneurysmal subarachnoid hemorrhage (aSAH, <i>n</i> = 107), and arteriovenous malformation (AVM, <i>n</i> = 102). The overall incidence of CA-AKI was 1.91%. By lesion type, incidences were 9.35% (aSAH), 9.91% (CAS), 2.94% (AVM), 0.55% (DAVF), and 0.61% (UCA). Multivariate analysis identified diabetes mellitus (odds ratio [OR], 2.414; 95% confidence interval [CI], 1.099-5.306; <i>p</i> = .028), lower preoperative total protein (OR, 0.447; 95% CI, 0.265-0.754; <i>p</i> = .003), higher preoperative creatinine (OR, 5.692; 95% CI, 2.962-10.938; <i>p</i> = <0.001), and lesion type (aSAH vs. UCA: OR, 17.672; CAS vs. UCA: OR, 9.551; both <i>p</i> < .001) as significant predictors.ConclusionPatients undergoing NES for aSAH or CAS were associated with an increased risk of CA-AKI, independent of known risk factors. To our knowledge, this is the first study to demonstrate lesion-specific differences in CA-AKI risk after NES.</p>","PeriodicalId":47358,"journal":{"name":"Neuroradiology Journal","volume":" ","pages":"19714009261473175"},"PeriodicalIF":1.2,"publicationDate":"2026-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13427941/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148632276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}