Neuroradiology最新文献

{"title":"White matter microstructural changes across the menstrual cycle: a differential tractography study.","authors":"Michele Porcu, Luigi Cocco, Luca Pasquini, Jasjit S Suri, Francesco Marrosu, Luca Saba","doi":"10.1007/s00234-025-03662-6","DOIUrl":"10.1007/s00234-025-03662-6","url":null,"abstract":"","PeriodicalId":19422,"journal":{"name":"Neuroradiology","volume":" ","pages":"2131-2141"},"PeriodicalIF":2.6,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144192059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Successful treatment of pulsatile tinnitus caused by jugular bulb diverticula using stent-assisted volumetric coil embolization in a double-jailing technique.","authors":"Nermin Abozenah, André Kemmling, Simon Klein, Boris Stuck, Mohammad Almohammad","doi":"10.1007/s00234-025-03707-w","DOIUrl":"10.1007/s00234-025-03707-w","url":null,"abstract":"<p><strong>Background: </strong>Pulsatile tinnitus (PT) is a distressing auditory symptom, frequently caused by vascular anomalies near the temporal bone. Among the rarer venous causes are jugular bulb diverticula, which can be difficult to diagnose and manage.</p><p><strong>Case presentation: </strong>We report the case of a patient in their 40s with persistent right-sided pulsatile tinnitus significantly impairing daily functioning. Imaging revealed two diverticula in the right jugular bulb and an enlarged nuchal emissary vein. Conservative treatment was ineffective. Digital subtraction angiography confirmed the venous origin of the tinnitus through provocation testing and temporary balloon occlusion. A novel endovascular approach using volumetric coils and venous double-jailing technique was pursued.</p><p><strong>Intervention: </strong>Stent-assisted coil embolization was performed using a double-jailing technique. Two PX-SLIM™ microcatheters were jailed through a single ACCERO^® Rex stent, enabling precise deployment of Penumbra PC400 volumetric coils into both diverticula and the enlarged nuchal emissary vein. The procedure was completed without complications under general anesthesia.</p><p><strong>Outcome: </strong>Symptoms resolved immediately and remained absent at follow-up. Dual antiplatelet therapy was tapered to aspirin monotherapy after 12 weeks.</p><p><strong>Conclusion: </strong>This is the first reported case employing volumetric coils in combination with a venous double-jailing technique for treating jugular bulb diverticula. This approach enabled precise and efficient embolization of multiple venous outpouchings through a single stent construct. The procedure was safe, minimally invasive, and led to complete symptom relief. These findings highlight a promising treatment strategy for selected cases of venous pulsatile tinnitus with complex anatomy.</p>","PeriodicalId":19422,"journal":{"name":"Neuroradiology","volume":" ","pages":"2199-2203"},"PeriodicalIF":2.6,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144601114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Percutaneous management of pyogenic spondylodiscitis using absorbable antibiotic carrier (STIMULAN®): preliminary results from a single-center study.","authors":"Matteo Bellini, Joshua Adam Hirsch, Stefano Marcia, Ernesto Piane, Margherita Di Stefano, Vittoria Balletta, Marzio Formisano, Chiara Zini","doi":"10.1007/s00234-025-03676-0","DOIUrl":"10.1007/s00234-025-03676-0","url":null,"abstract":"<p><strong>Purpose: </strong>This study evaluates the feasibility of using a fully resorbable antibiotic carrier (STIMULAN®, Rapid Cure, Biocomposites Ltd, UK) for the targeted treatment of spondylodiscitis (SD) through percutaneous injection directly into the infection site.</p><p><strong>Material and methods: </strong>Between 2022 and 2024, 13 patients diagnosed with SD underwent percutaneous osteo-discal biopsy followed by intradiscal and intravertebral injection of tailored antibiotic-loaded calcium sulfate paste. Clinical assessments (VAS), laboratory markers (CRP and leukocyte counts), and MRI imaging were used to monitor outcomes up to 12 months.</p><p><strong>Results: </strong>The procedure achieved 100% technical success with no major complications. All patients showed significant symptom relief, with VAS scores decreasing from 8.2 at baseline to 3.5 at 12 months. Inflammatory markers improved consistently, particularly CRP, which dropped from 7.35 to 0.23 (p ≈ 0.00005).</p><p><strong>Conclusions: </strong>These findings suggest that STIMULAN® enables safe, effective local antibiotic delivery in SD, with meaningful clinical and biomarker improvements. Nonetheless, larger multicenter studies are needed to validate these preliminary results and assess long-term efficacy.</p>","PeriodicalId":19422,"journal":{"name":"Neuroradiology","volume":" ","pages":"2233-2237"},"PeriodicalIF":2.6,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144294083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prevalence of suboccipital and intradural vertebral artery variants: a systematic review with meta-analysis.","authors":"George Triantafyllou, Panagiotis Papadopoulos-Manoralarakis, Rǎzvan Costin Tudose, Mugurel Constantin Rusu, George Tsakotos, Maria Piagkou","doi":"10.1007/s00234-025-03674-2","DOIUrl":"10.1007/s00234-025-03674-2","url":null,"abstract":"","PeriodicalId":19422,"journal":{"name":"Neuroradiology","volume":" ","pages":"1985-1995"},"PeriodicalIF":2.6,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144302612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Photon-counting CT-angiography in comparison to digital subtraction angiography for assessing intracranial aneurysms after coiling or clipping.","authors":"Frederic De Beukelaer, Laura Wuyts, Sophie De Beukelaer, Steven Van Hedent, Omid Nikoubashman, Martin Wiesmann, Michael Veldeman, Rastislav Pjontek, Anke Höllig, Hani Ridwan, Charlotte Weyland","doi":"10.1007/s00234-025-03650-w","DOIUrl":"10.1007/s00234-025-03650-w","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the potential of Photon-Counting Detector CT Angiography (PCD-CTA) for the post-interventional assessment of intracranial aneurysms treated with coil-embolization or clipping, compared to digital subtraction angiography (DSA).</p><p><strong>Methods: </strong>Retrospective analysis of consecutive patients treated with coils or clips between April 2023 and May 2024, who underwent PCD-CTA and, if necessary, DSA as part of their clinical routine. Polyenergetic images and spectral reconstructions were performed at different kiloelectron volt (keV) levels (40, 80 and 120) and with reconstruction kernels: Quantitative (Qr56 and Qr72) and Head vessel (Hv56 and Hv72), both with and without iterative metal artifact reduction (iMAR). Three independent readers assessed image quality using a 5-point Likert scale and region of interest analysis. A blinded, independent reading was performed to determine the presence of aneurysm remnants and intracranial vessel stenosis in the parent vessel.</p><p><strong>Results: </strong>A total of 21 patients (mean age 58 ± 14 years; range 36-74; 18 women) with intracranial, saccular aneurysms treated with either clipping (17/21) or coiling (4/21) were included. Reconstructions using smooth kernels (Hv56, Qr56) at a low keV level (40 keV) yielded increased signal- and contrast-to-noise ratios compared to sharper kernels (Hv72, Qr72) and higher keV levels (80 and 120 keV) (p < 0.001). Unexpectedly, reconstructions with iMAR negatively impacted evaluation, with only 6/21 diagnostic images at the clip site. The sensitivity of PCD-CTA for detecting aneurysm remnants was 100% (7 of 7 aneurysm clip/coil site), while specificity was 89% for patients with clips (8/9). A 100% negative predictive value was observed for all readers regarding aneurysm remnants.</p><p><strong>Conclusion: </strong>Photon-Counting CT-Angiography demonstrated adequate diagnostic value in most patients with intracranial clips. However, while coil artifacts were reduced, spectral reconstructions and iMAR were not sufficient to fully minimize these artifacts.</p>","PeriodicalId":19422,"journal":{"name":"Neuroradiology","volume":" ","pages":"2021-2030"},"PeriodicalIF":2.6,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144199662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Whiplash-associated injuries in medicolegal contexts: a review of imaging findings and a pictorial essay.","authors":"Parya Valizadeh, Payam Jannatdoust, Ali Gholamrezanezhad","doi":"10.1007/s00234-025-03697-9","DOIUrl":"10.1007/s00234-025-03697-9","url":null,"abstract":"<p><p>Whiplash-associated disorder (WAD) can lead to a range of acute and chronic symptoms, posing significant diagnostic and legal challenges. Diagnosing WAD is complicated by non-specific imaging findings, particularly in cases involving compensation claims. MRI can detect ligamentous injuries involving craniovertebral junction structures such as the alar and transverse ligaments. However, the reliability of these findings remains debated due to the overlap with age-related changes. Muscle injuries, such as strains, tears, and fatty infiltration, are common in WAD and can contribute to chronic disability. MRI also identifies Modic changes in the vertebral endplates, which may indicate inflammation or degeneration but are frequently observed in asymptomatic individuals as well. The timing of MRI plays a crucial role; delays in imaging can result in lower sensitivity, as inflammatory changes may resolve over time. Comparison with prior imaging studies, when available, is essential for distinguishing trauma-related changes from pre-existing degenerative findings. Other modalities, such as videofluoroscopy for detecting vertebral instability, positron emission tomography for identifying inflammation, and ultrasound for assessing muscle function, can provide complementary information. Differentiating trauma-induced injuries from pre-existing degenerative changes remains essential, particularly in medicolegal contexts where compensation claims are evaluated. A careful interpretation of imaging findings, supported by clinical and legal perspectives, helps avoid misattributing symptoms to either trauma or natural aging processes.</p>","PeriodicalId":19422,"journal":{"name":"Neuroradiology","volume":" ","pages":"2211-2231"},"PeriodicalIF":2.6,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144659753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluating age-associated cerebral blood flow variations in MCA-ASPECTS regions using 3D-ASL.","authors":"Hua Zhang, Shiyang Zhang, Weicheng Chen, Xianxian Kong, Ruiying Guo, Lixiang Xu","doi":"10.1007/s00234-025-03636-8","DOIUrl":"10.1007/s00234-025-03636-8","url":null,"abstract":"<p><strong>Background: </strong>Cerebral blood flow (CBF) regulation is fundamental to maintaining normal brain function and is known to vary with age. This study aimed to investigate the correlation between age and CBF within specific regions of the Middle Cerebral Artery-Alberta Stroke Project Early Computed Tomography Score (MCA-ASPECTS) framework by quantitatively assessing CBF in healthy individuals.</p><p><strong>Methods: </strong>This cross-sectional study included healthy participants who underwent a series of imaging protocols, including head magnetic resonance imaging, three-dimensional arterial spin labeling (3D-ASL), and magnetic resonance angiography. CBF values were analyzed across all MCA-ASPECTS regions to establish reference CBF metrics and evaluate interhemispheric discrepancies. Comparisons were made between corresponding ASPECTS regions in the left and right hemispheres and among 10 unilateral ASPECTS regions. Pearson's correlation analysis was used to examine associations between CBF and age.</p><p><strong>Results: </strong>The study included 22 healthy volunteers. Significant variations in CBF were observed in the bilateral insula, M1, and M4 regions (P < 0.05). Among the MCA-ASPECTS regions, the highest mean CBF values were found in the bilateral M3 regions and the right insula (55.63 ± 6.56, 57.24 ± 7.75, and 57.63 ± 7.97, respectively), while the lowest were observed in the bilateral internal capsule regions (34.15 ± 5.30 and 35.29 ± 5.23, respectively). The left-right brain CBF difference index was highest in the M1 region (x = 0.061 ± 0.038) and lowest in the M2 region (x = 0.022 ± 0.020). Significant differences in CBF were detected across the ten bilateral MCA-ASPECTS regions (P < 0.001), with most area-to-area comparisons showing statistical significance (P < 0.05). CBF demonstrated significant negative correlations with age in the bilateral insula, bilateral M2, the left caudate, and the right M1 regions, with correlation coefficients ranging from - 0.43 to -0.49 (P < 0.05). In contrast, a positive correlation was observed between age and CBF in the right internal capsule region (correlation coefficient = 0.4, P < 0.05).</p><p><strong>Conclusions: </strong>Automated quantitative assessment of CBF in MCA-ASPECTS regions using 3D-ASL offers significant advantages, including repeatability, practicality, and clinical relevance. This approach facilitates precise evaluation of regional CBF variations and provides a critical foundation for the quantitative application of 3D-ASL in ischemic stroke diagnosis and management.</p>","PeriodicalId":19422,"journal":{"name":"Neuroradiology","volume":" ","pages":"2143-2154"},"PeriodicalIF":2.6,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144248892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pure arterial malformations of the brain: A systematic review of clinical presentation, diagnosis, and management.","authors":"Milin Patel, Sahibjot Singh Grewal, Rashid A Ahmed, James D Rabinov, Robert W Regenhardt, Adam A Dmytriw","doi":"10.1007/s00234-025-03665-3","DOIUrl":"10.1007/s00234-025-03665-3","url":null,"abstract":"<p><strong>Background: </strong>Pure arterial malformations (PAMs) of the brain are rare vascular anomalies, typically identified incidentally and characterized by tortuous arterial loops. Their unclear etiology and management pose diagnostic and therapeutic challenges.</p><p><strong>Methods: </strong>A systematic review of Medline, EMBASE, and Web of Science databases (1900-present) identified 15 studies involving 54 patients with PAM. Data on demographics, clinical presentations, diagnostic modalities, and treatments were extracted.</p><p><strong>Results: </strong>The mean age was 37.2 years (range: 10-77), with a female predominance (69%). Severe headaches were the most common symptom (43%), though some cases presented with neurological deficits (20%) or incidentally (32%). Imaging modalities such as digital subtraction angiography, MRI, and CT were pivotal in diagnosis. Most cases (81%) were managed conservatively, while 19% had interventions, including clipping and embolization. Surgical management was effective in alleviating symptoms in select cases of symptom progression.</p><p><strong>Conclusion: </strong>Our findings highlight the variability in clinical presentations ranging from benign to acute emergencies, emphasizing the challenges associated with the diagnosis and management of PAMs. This review underscores the need for larger studies that explore the etiology, treatment efficacy, and long-term patient outcomes.</p>","PeriodicalId":19422,"journal":{"name":"Neuroradiology","volume":" ","pages":"1979-1983"},"PeriodicalIF":2.6,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144209060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unveiling patterns of peri-lead edema after deep brain stimulation: a retrospective review of clinical and demographic factors.","authors":"Coplen Johnson, Garret Miller, Shivam Shah, Christopher Stevens, Nicholas Thomas, Jamie Toms, Octavio Arevalo","doi":"10.1007/s00234-025-03607-z","DOIUrl":"10.1007/s00234-025-03607-z","url":null,"abstract":"<p><strong>Objective: </strong>Postoperative peri-lead edema (PLE) is an increasingly recognized complication of deep brain stimulation (DBS), a therapeutic intervention commonly used for neurological conditions such as Parkinson's disease (PD), essential tremor (ET), intractable focal epilepsy, and dystonia. In this study, we conducted a retrospective chart review to evaluate the incidence of PLE and explore potential clinical and demographic risk factors.</p><p><strong>Methods: </strong>A single physician performed DBS electrode placements. To check for complications, postoperative computed tomography (CT) scans were conducted on the day of surgery and approximately 12-15 days afterward. Data on age, gender, complications, edema size, electrode laterality, lead target, lead brand, indication, and use of robotic assistance versus Starfix were collected and analyzed statistically.</p><p><strong>Results: </strong>133 leads were implanted in 63 patients, with peri-lead edema (PLE) observed in 65 electrodes (48.87%). Minor postoperative complications, such as subarachnoid hemorrhage (SAH) and subdural hematoma (SDH), were noted in some patients. A few cases of severe PLE were recorded, with the most significant volume of edema reaching 85.11 cm³. No statistically significant differences were found between PLE-positive and PLE-negative patients based on age, sex, lead target, indication, or robotic assistance versus Starfix. However, the use of Boston Scientific electrodes was significantly associated with PLE, with a p-value of 0.047. A logistic regression model (p = 0.013, R² = 0.219) correctly classified 63.2% of cases, with no significant predictors of PLE, but imaging complications (p = 0.057) and electrode brand (p = 0.086) approached significance, with Boston Scientific electrodes linked to higher PLE risk compared to Abbott electrodes (p = 0.027, OR = 3.729).</p><p><strong>Conclusions: </strong>PLE appears more prevalent than previously reported and generally presents with delayed onset post-surgery. This retrospective analysis identified the use of Boston Scientific electrodes as a potential risk factor for PLE. Further research, particularly more extensive studies, is necessary to clarify the underlying mechanisms of PLE, improve prevention strategies, and enhance our understanding of this complication.</p>","PeriodicalId":19422,"journal":{"name":"Neuroradiology","volume":" ","pages":"1971-1978"},"PeriodicalIF":2.6,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143812048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Silk Vista Baby for the treatment of distal anterior cerebral artery aneurysms.","authors":"Luca Scarcia, Frédéric Clarençon, Adam A Dmytriw, Eimad Shotar, Pascal Jabbour, Marios Psychogios, Peter Sporns, Ajit S Puri, Ameer E Hassan, Oktay Algin, Markus A Möhlenbruch, Riccardo Russo, Mauro Bergui, Oded Goren, Nourou Dine A Bankole, Gregoire Boulouis, Takeshi Morimoto, Raoul Pop, Joanna Wk Ho, Ángel Ferrario, Virginia Pujol Lereis, Jared Cooper, Giancarlo Salsano, Yan-Lin Li, Arturo Consoli, Alessandro Sgreccia, Eytan Raz, Charlotte Chung, Julien Burel, Chrysanthi Papagiannaki, Khawaja Muhammad Baqir Hassan, Hong Tao, Riitta Rautio, Matias Sinislao, Maria Ruggiero, Elvis Lafe, Valerio Da Ros, Luigi Bellini, Joseph Domenico Gabrieli, Francesco Causin, Michael Levitt, Antonio Armando Caragliano, Sergio Lucio Vinci, Guillaume Bellanger, Christophe Cognard, Gaultier Marnat, Lisa Saleille, Nicola Nimbucci, Francesco Capasso, Mariangela Piano, Claudia Rollo, Alexis Guedon, Andrea Romi, Fortunato Di Caterino, Alessandra Biondi, Firas Farhat, Mykola Vyval, Adrien Guenego, Thanh Nguyen, Mohamad Abdalkader, Ahmet Gunkan, Thibault Agripnidis, Maurizio Fuschi, Vitor Mendes Pereira, Andrea M Alexandre, Alessandro Pedicelli","doi":"10.1007/s00234-025-03678-y","DOIUrl":"10.1007/s00234-025-03678-y","url":null,"abstract":"<p><strong>Purpose: </strong>Treating small-caliber vessel aneurysms with flow diverters poses challenges due to narrow luminal diameters and tortuous vasculature, which complicate the navigation and deployment of conventional devices using standard microcatheters. The Silk Vista Baby (SVB, Balt, Montmorency, France) flow diverter was developed to treat intracranial aneurysms located in smaller vessels or more distal segments and is compatible with 0.017″ microcatheters. We present the largest multicenter analysis to date evaluating the outcomes of SVB use in unruptured distal anterior cerebral artery (DACA) aneurysms.</p><p><strong>Methods: </strong>Retrospective data from 20 centers were reviewed for patients with unruptured DACA aneurysms treated with the SVB. Demographic information, clinical presentation, radiographic characteristics, complications, and outcomes were recorded.</p><p><strong>Results: </strong>Seventy-nine patients (79 DACA aneurysms) were treated between January 2018 and December 2022; 59 were female (74.7%), and the median age was 61 years (IQR 53-67). Most aneurysms were saccular (89.9%), and 65.8% involved a branch. The median parent vessel diameter was 1.9 mm (IQR 1.7-2.1). A single stent was implanted in 97.5% of cases; 2.5% required two stents. The median imaging follow-up duration was 12 months (IQR 9.5-24). At the last follow-up, 76% of aneurysms showed complete or near-complete occlusion (O'Kelly-Marotta scale C or D, Raymond-Roy 1 or 2). Overall, thromboembolic or hemorrhagic complications occurred in 14% of patients, with two cases being symptomatic. The mortality rate was 0%, and the retreatment rate was 1.3%.</p><p><strong>Conclusion: </strong>In this multicenter series, the SVB flow diverter represented a valuable treatment option for distal anterior cerebral artery (DACA) aneurysms.</p>","PeriodicalId":19422,"journal":{"name":"Neuroradiology","volume":" ","pages":"2167-2177"},"PeriodicalIF":2.6,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144541659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}