Neuroradiology Journal最新文献

{"title":"Iatrogenic and traumatic Dural arteriovenous fistulas: Illustrative cases and literature review.","authors":"Alireza Karandish, Muhammed Amir Essibayi, Nathan Farkas, Neil Haranhalli, Vijay Agarwal, David J Altschul","doi":"10.1177/19714009251324315","DOIUrl":"10.1177/19714009251324315","url":null,"abstract":"<p><p>Dural arteriovenous fistulas (dAVFs) are a type of vascular malformation that form within the dura mater. Though historically considered rare, their detection is expected to increase with the broader use of advanced cerebral angiography techniques. We describe two 80-year-old men presented for neurovascular procedures. The first, following an emergency craniotomy for subdural hematoma (SDH) evacuation, underwent middle meningeal artery embolization (MMAE). During the procedure, an incidental, asymptomatic middle meningeal artery and superficial temporal artery to superior sagittal sinus (MMA/STA-SSS) dAVF was identified ipsilateral to the original surgical site. Given the fistula's low-risk nature, a conservative, watchful waiting approach was chosen. The second patient, undergoing digital subtraction angiography (DSA) for subarachnoid hemorrhage (SAH), was found to have an MMA-fed dAVF. Due to the unclear causality of this fistula with the concurrent SAH and subdural hematoma (SDH), MMAE was performed to treat the dAVF. With the increasing use of cerebral angiography techniques such as MMAE and DSA for a broader range of indications, the incidence of incidentally and unexpectedly discovered dAVFs is expected to increase. Clinicians should become well-versed in recognizing this condition, treatment indications, and the various management options available, including endovascular embolization, radiosurgery, microsurgery, and serial monitoring.</p>","PeriodicalId":47358,"journal":{"name":"Neuroradiology Journal","volume":" ","pages":"19714009251324315"},"PeriodicalIF":1.3,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11863194/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143493676","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":"Anatomical variations of the intracranial arteries and their association with intracranial aneurysms: Insights from digital subtraction angiographies.","authors":"Yolanda Aburto-Murrieta, Juan Manuel Marquez-Romero, Pablo Martínez-Arellano, Fabiola Eunice Serrano-Arias, Héctor Alfredo Montenegro-Rosales, Diego López-Mena","doi":"10.1177/19714009251313516","DOIUrl":"10.1177/19714009251313516","url":null,"abstract":"<p><p>The purpose of this study was to identify the anatomical variants (AVs) in the intracranial arterial circulation of patients who underwent neuro-interventional procedures (NIPs) and to describe their relationship with intracranial aneurysms (IA). We performed a cross-sectional analysis of angiographic images from patients who underwent NIP at the Interventional Neuroradiology Department of the National Institute of Neurology and Neurosurgery in México between July 1, 2020, and January 1, 2022. After reviewing images from 150 NIPs, we found 144 AVs., yielding a prevalence of 81%. Of these, 49 AVs (34%) were located in the anterior circulation (AC) and 95 (66%) in the posterior circulation (PC); 23 NIPs (16%) showed AVs in both the AC and PC. The most frequent AVs were the fetal pattern of the posterior cerebral artery (19%) and hypoplasia of the A1 segment (12%). AVs were significantly more common in patients with neurovascular disorders than those without (80% vs 49%, <i>p</i> = .003) and in patients with IA compared to those without (68% vs 47%, <i>p</i> = .048). In the studied population, AVs were predominantly located in the PC and are significantly more frequent in patients with neurovascular disorders, particularly those with IA.</p>","PeriodicalId":47358,"journal":{"name":"Neuroradiology Journal","volume":" ","pages":"19714009251313516"},"PeriodicalIF":1.3,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11803601/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143366297","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":"Predictors of prognosis in stroke patients with tandem lesions who undergo emergent stenting.","authors":"Leyla Ramazanoglu, Isil Kalyoncu Aslan, Yilmaz Onal, Murat Velioglu, Osman Melih Topcuoglu, Eren Gozke","doi":"10.1177/19714009251317504","DOIUrl":"10.1177/19714009251317504","url":null,"abstract":"<p><strong>Background: </strong>The optimal endovascular approach for tandem lesions (extracranial internal carotid artery and intracranial large vessel occlusion) is not clear. Aims: The aim was to evaluate the follow-up results of stroke patients with tandem lesions who underwent emergent stenting of extracranial lesions with antithrombotic therapy combined with intracranial MT.</p><p><strong>Methods: </strong>Outcomes and predictors of poor prognosis and mortality compared with those of good prognosis at 90 days, 1 year, and 2 years were assessed. A modified Rankin scale (mRS) score was used. Symptomatic intracranial hemorrhage (sICH), National Institutes of Health Stroke Scale (NIHSS) scores at admission and at 24 h, successful recanalization, asymptomatic ICH, embolization, malignant infarction, decompression, in-stent restenosis and extracranial complications were also evaluated. The best age cutoff for predicting mortality was analyzed.</p><p><strong>Results: </strong>A total of 71 subjects were included. Using patients with a good prognosis as a reference, the independent variables predicting a poor prognosis were a high 24-h NIHSS score and extracranial complications at all timepoints (3-month, 1-year, and 2-year follow-up). The most appropriate age cutoff for predicting 1-year mortality was 67 years [AUC = 0.802 (95% CI = 0.684-0.920); <i>p</i> < .001]. The age cutoff determined for the first year was correlated with the prediction of mortality in the third month and the second year. No significant association was observed between sICH and the groups.</p><p><strong>Conclusion: </strong>In this study, the 24-h NIHSS score after reperfusion and age were predictors of poor prognosis and mortality in stroke patients with tandem lesions who underwent emergent stenting during thrombectomy.</p>","PeriodicalId":47358,"journal":{"name":"Neuroradiology Journal","volume":" ","pages":"19714009251317504"},"PeriodicalIF":1.3,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11800228/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143190892","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":"Transarterial embolization of sinus dural arteriovenous fistula using non-adhesive liquid embolic material.","authors":"Huachen Zhang, Youle Su, Xianli Lv","doi":"10.1177/19714009231224439","DOIUrl":"10.1177/19714009231224439","url":null,"abstract":"<p><p><b>Objective:</b> The objective is to report our experience of transarterial embolization of sinus dural arteriovenous fistula (DAVF) using non-adhesive liquid embolic material.<b>Materials and methods:</b> In 3 cases of Borden type II sinus DAVFs, a Copernic balloon was used to protect sagittal sinus in one patient, palliative Onyx embolization was performed to protect transverse sinus in one patient and EVAL/DMSO/ethanol mixture (EVAL, SUCCESS, Shandong, China) was used in the last patient.<b>Results:</b> Two Borden type II DAVFs were changed into type I DAVF and one was cured. The dural sinus was patent after successful Onyx embolization in 3 cases resulting in well patient recovery. There were no treatment-related events.<b>Conclusion:</b> Transarterial embolization of sinus DAVF using non-adhesive liquid embolic material could be effective and safe with sinus protection techniques.</p>","PeriodicalId":47358,"journal":{"name":"Neuroradiology Journal","volume":" ","pages":"93-97"},"PeriodicalIF":1.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11815797/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139040739","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":"Automated segmentation of ventricular volumes and subarachnoid hemorrhage from computed tomography images: Evaluation of a rule-based pipeline approach.","authors":"Mitchell Butler, Parin Shah, Burce Ozgen, Edward A Michals, Joseph R Geraghty, Fernando D Testai, Biswajit Maharathi, Jeffrey A Loeb","doi":"10.1177/19714009241260791","DOIUrl":"10.1177/19714009241260791","url":null,"abstract":"<p><p>Changes in ventricular size, related to brain edema and hydrocephalus, as well as the extent of hemorrhage are associated with adverse outcomes in patients with subarachnoid hemorrhage (SAH). Frequently, these are measured manually using consecutive non-contrast computed tomography scans. Here, we developed a rule-based approach which incorporates both intensity and spatial normalization and utilizes user-defined thresholds and anatomical templates to segment both lateral ventricle (LV) and SAH blood volumes automatically from CT images. The algorithmic segmentations were evaluated against two expert neuroradiologists on representative slices from 20 admission scans from aneurysmal SAH patients. Previous methods have been developed to automate this time-consuming task, but they lack user feedback and are hard to implement due to large-scale data and complex design processes. Our results using automatic ventricular segmentation aligned well with expert reviewers with a median Dice coefficient of 0.81, AUC of 0.91, sensitivity of 81%, and precision of 84%. Automatic segmentation of SAH blood was most reliable near the base of the brain with a median Dice coefficient of 0.51, an AUC of 0.75, precision of 68%, and sensitivity of 50%. Ultimately, we developed a rule-based method that is easily adaptable through user feedback, generates spatially normalized segmentations that are comparable regardless of brain morphology or acquisition conditions, and automatically segments LV with good overall reliability and basal SAH blood with good precision. Our approach could benefit longitudinal studies in patients with SAH by streamlining assessment of edema and hydrocephalus progression, as well as blood resorption.</p>","PeriodicalId":47358,"journal":{"name":"Neuroradiology Journal","volume":" ","pages":"30-43"},"PeriodicalIF":1.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11571338/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141312031","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 teacher-mentee bond in medicine.","authors":"Luca Saba","doi":"10.1177/19714009251316380","DOIUrl":"10.1177/19714009251316380","url":null,"abstract":"","PeriodicalId":47358,"journal":{"name":"Neuroradiology Journal","volume":" ","pages":"5-6"},"PeriodicalIF":1.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11752145/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143014138","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":"Perianeurysmal vasogenic oedema (PAVO): A single centre 10-year retrospective review.","authors":"Yatharth Verma, Catherine Pringle, Hedley Emsley, Hemant Sonwalkar, Andrew F Alalade, Gareth A Roberts","doi":"10.1177/19714009241269509","DOIUrl":"10.1177/19714009241269509","url":null,"abstract":"<p><strong>Introduction: </strong>Perianeurysmal Vasogenic Oedema (PAVO) is a rare but important complication of endovascular treatment of intracranial aneurysms. Many potential risk factors have been identified including age, aneurysm size, aneurysm location, immunological profile, type of coil used, diabetes, hypertension, and smoking. PAVO can cause persistent post-procedural symptoms, subsequently increasing post-embolization morbidity.</p><p><strong>Methods: </strong>A 10-year retrospective review was conducted between 2011 and 2021 at Royal Preston Hospital, Preston, UK.</p><p><strong>Results: </strong>We identified 8 patients that fit our inclusion criteria. This included 6 (75%) females and 2 (25%) males. The mean age was 64. All patients had anterior circulation aneurysms with the middle cerebral artery (MCA) being the most common site. The mean aneurysm size was 12 mm. Our patients were managed with a range of endovascular techniques. One patient had pre-treatment PAVO while 7 patients had post-embolization PAVO. Five patients were symptomatic, and 3 cases were asymptomatic with only radiological evidence of PAVO. Five patients were managed with varying courses of dexamethasone. PAVO resolution was achieved in 4 cases. The oedema significantly improved in 3 cases, but transiently progressed in 1 case.</p><p><strong>Conclusions: </strong>PAVO is a rare but important complication of endovascular management of intracranial aneurysms. We have shown that patients can be effectively managed with steroids with resultant oedema regression and symptomatic improvement. Many risk factors have been associated with PAVO, but further research is needed to better understand their role in PAVO development and help develop other therapeutic options.</p>","PeriodicalId":47358,"journal":{"name":"Neuroradiology Journal","volume":" ","pages":"52-58"},"PeriodicalIF":1.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11571596/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141789393","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":"Listeria monocytogenes brain abscesses presenting as contiguous, tubular rim-enhancing lesions on Magnetic Resonance Imaging: Case series and literature review.","authors":"Daniel D Kim, Mohammad Sadic, Boniface Yarabe, James R Loftus, Evan Lieberman, Matthew G Young, Rajan Jain, Siddhant Dogra","doi":"10.1177/19714009241240054","DOIUrl":"10.1177/19714009241240054","url":null,"abstract":"<p><p>Listeriosis has more than a 50% mortality when the central nervous system is involved, necessitating rapid diagnosis and treatment. We present four patients with brain abscesses in the setting of diagnosed neurolisteriosis, all of which demonstrated an odd presentation of multiple small, contiguous tubular lesions with rim enhancement on magnetic resonance imaging. Our review of published cases of neurolisteriosis suggests that this may be a useful pattern to identify neurolisteriosis abscesses, allowing earlier detection and therapy.</p>","PeriodicalId":47358,"journal":{"name":"Neuroradiology Journal","volume":" ","pages":"115-120"},"PeriodicalIF":1.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11571425/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140144335","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 \"Hypointense Focal Brain\" on susceptibility-weighted imaging as a sign of venous congestion in cranial dural arteriovenous fistulas.","authors":"Zhao Hui Chen Zhou, Amaya Hilario, Elena Salvador Álvarez, Agustín María Cárdenas Del Carre, Juan Romero Coronado, Carmen Lechuga Vázquez, Ana Martínez de Aragón, Ana Ramos González","doi":"10.1177/19714009241269522","DOIUrl":"10.1177/19714009241269522","url":null,"abstract":"<p><strong>Background: </strong>Cranial dural arteriovenous fistulas (dAVFs) are complex neurovascular malformations accounting for approximately 10%-15% of all intracranial arteriovenous malformations. The objective is to investigate the utility of susceptibility-weighted imaging (SWI) in identifying \"hypointense focal brain\" as an additional helpful sign of venous congestion in cranial dAVFs.</p><p><strong>Materials and methods: </strong>A retrospective review of patients diagnosed with cranial dAVFs between January 2015 and June 2023 was conducted, and SWI was used to identify the \"hypointense focal brain\" sign within the venous drainage region of the dAVF. The \"hypointense focal brain\" on SWI was identified as a low-intensity signal within the venous drainage region, indicative of venous congestion. The presence of this imaging sign was assessed by two neuroradiologists and signal intensity measurements were performed to support the presence of the sign.</p><p><strong>Results: </strong>The study included six patients with cranial dAVFs exhibiting cortical venous retrograde drainage and the \"hypointense focal brain\" on SWI. Follow-up imaging post-treatment revealed resolution or improvement of the hypointense signal, confirming its association with venous congestion. Signal intensity measurements further supported the presence of this imaging sign in pre-treatment scans.</p><p><strong>Conclusion: </strong>The study's findings demonstrate the presence of a reversible \"hypointense focal brain\" sign on SWI in patients with cranial dAVFs and CVR, which can be useful as an additional imaging sign for venous congestion.</p>","PeriodicalId":47358,"journal":{"name":"Neuroradiology Journal","volume":" ","pages":"64-71"},"PeriodicalIF":1.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11571536/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141793733","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":"Neuroradiological manifestations in hospitalized patients with COVID-19: An Italian national multicenter study on behalf of AINR (Associazione Italiana di Neuroradiologia) and SIRM (Società Italiana di Radiologia Medica).","authors":"Nicoletta Anzalone, Simonetta Gerevini, Anna Del Poggio, Simona Gaudino, Francesco Causin, Letterio Salvatore Politi, Fabio Maria Triulzi, Guglielmo Pero, Anna Pichiecchio, Stefano Bastianello, Fabio Massimo Baruzzi, Elena Bianchini, Giovanni Foti, Giuseppe Kenneth Ricciardi, Massimo Sponza, Roberto Menozzi, Mirco Cosottini, Pasquale De Chirico, Luca Saba, Roberto Gasparotti","doi":"10.1177/19714009241240312","DOIUrl":"10.1177/19714009241240312","url":null,"abstract":"<p><strong>Purpose: </strong>This multicentric study aims to characterize and assess the occurrence of neuroradiological findings among patients with SARS-CoV-2 infection during the first Italian wave of the pandemic outbreak.</p><p><strong>Materials and methods: </strong>Patients' data were collected between May 2020 and June 2020. Clinical and laboratory data, chest imaging, brain CT, and MRI imaging were included. Acquired data were centralized and analyzed in two hospitals: ASST Spedali Civili, Brescia, and IRRCS San Raffaele Research Hospital, Milan, Italy. COVID-19 patients were classified into two different subgroups, vascular and nonvascular. The vascular pattern was further divided into ischemic and hemorrhagic stroke groups.</p><p><strong>Results: </strong>Four hundred and fifteen patients from 20 different Italian Centers were enrolled in the study. The most frequent symptom was focal neurological deficit, found in 143 patients (34.5%). The most frequent neuroradiological finding was ischemic stroke in 122 (29.4%) patients. Forty-four (10.6%) patients presented a cerebral hemorrhage. Forty-seven patients had non-stroke neuroimaging lesions (11.3%). The most common was PRES-like syndrome (28%), SWI hypointensities (22%), and encephalitis (19%). The stroke group had higher CAD risk (37.5% vs 20%, <i>p</i> = .016) and higher D-dimer levels (1875 ng/mL vs 451 ng/mL, <i>p</i> < .001) compared to the negative group.</p><p><strong>Conclusion: </strong>Our study describes the biggest cohort study in Italy on brain imaging of COVID-19 patients and confirms that COVID-19 patients are at risk of strokes, possibly due to a pro-thrombotic microenvironment. Moreover, apart from stroke, the other neuroradiological patterns described align with the ones reported worldwide.</p>","PeriodicalId":47358,"journal":{"name":"Neuroradiology Journal","volume":" ","pages":"44-51"},"PeriodicalIF":1.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11562890/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141427950","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}