Journal of Neuroradiology最新文献

{"title":"The art and agony of AI in neuroradiology.","authors":"Marc Lenfant","doi":"10.1016/j.neurad.2024.101237","DOIUrl":"10.1016/j.neurad.2024.101237","url":null,"abstract":"","PeriodicalId":50115,"journal":{"name":"Journal of Neuroradiology","volume":" ","pages":"101237"},"PeriodicalIF":3.0,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142824628","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":"The ARIANES initiative: A vision for a structured regional MRI network in the Hauts-de-France.","authors":"J P Pruvo, G Kuchcinski, M Bretzner, S Krystal, J Dumont, B Le Guellec, L Hacein Bey, R Lopes","doi":"10.1016/j.neurad.2024.101238","DOIUrl":"10.1016/j.neurad.2024.101238","url":null,"abstract":"","PeriodicalId":50115,"journal":{"name":"Journal of Neuroradiology","volume":" ","pages":"101238"},"PeriodicalIF":3.0,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142824627","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":"Impact of cerebral collateral recycle status on clinical outcomes in elderly patients with endovascular stroke treatment.","authors":"Chen Gong, Jin Liu, Ziyang Huang, Shuyu Jiang, Liping Huang, Zhiyuan Wang, Yankun Chen, Jinxian Yuan, You Wang, Zhiyu Xiong, Yangmei Chen, Siyin Gong, Shengli Chen, Tao Xu","doi":"10.1016/j.neurad.2024.101236","DOIUrl":"10.1016/j.neurad.2024.101236","url":null,"abstract":"<p><strong>Background: </strong>Elderly patients are at high risk of acute ischemic stroke caused by large vessel occlusion (AIS-LVO) and usually suffer disability and fatality from stroke even after receiving endovascular treatment (EVT). Previous studies lacked the knowledge of comprehensive cerebral collateral for elderly patients. Hence, we explore the role of cerebral collateral recycle (CCR) status in clinical outcomes in a real-world setting among elderly AIS-LVO patients undergoing EVT.</p><p><strong>Methods: </strong>This was a multicenter retrospective cohort study. Computed tomographic angiography (CTA) at admission was applied to evaluate cerebral venous outflow profiles by the Cortical Vein Opacification Score (COVES) and pial arterial collaterals by the Tan scale. According to the status of cerebral collaterals, enrolled patients were divided into the poor, moderate, and favorable CCR groups. The primary outcome was functional independence (90-day modified Rankin Scale score 0-2).</p><p><strong>Results: </strong>Among 860 AIS-LVO patients receiving EVT, a total of 338 elderly patients were included in the present study after strict screening. Compared with the poor CCR group, the moderate CCR group (31.1 % vs. 10.2 %; adjusted odds ratio[aOR] 3.80; 95 % confidence interval[CI] 1.71-8.44; P = 0.001) and the favorable CCR group (63.3 % vs. 10.2 %; aOR 8.49; 95 % CI 4.02-17.92; P < 0.001) both had a significantly higher rate of functional independence. In subgroup analysis, similar results were found in AIS-LVO patients with older age, large core infarction, or late time window.</p><p><strong>Conclusion: </strong>The cerebral collateral status in elderly patients with AIS-LVO treated by EVT is a strong predictor of functional outcomes and more robust CCR means better outcomes.</p>","PeriodicalId":50115,"journal":{"name":"Journal of Neuroradiology","volume":" ","pages":"101236"},"PeriodicalIF":3.0,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142792753","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":"MRI management of NMOSD and MOGAD: Proposals from the French Expert Group NOMADMUS.","authors":"Françoise Durand-Dubief, Natalia Shor, Bertrand Audoin, Bertrand Bourre, Mickael Cohen, Stéphane Kremer, Elisabeth Maillart, Caroline Papeix, Aurélie Ruet, Julien Savatovsky, Thomas Tourdias, Xavier Ayrignac, Jonathan Ciron, Nicolas Collongues, David Laplaud, Laure Michel, Romain Deschamps, Eric Thouvenot, Hélène Zephir, Romain Marignier, François Cotton","doi":"10.1016/j.neurad.2024.101235","DOIUrl":"10.1016/j.neurad.2024.101235","url":null,"abstract":"<p><strong>Background: </strong>Currently, there are no available recommendations or guidelines on how to perform MRI monitoring in the management of neuromyelitis optica spectrum disorder (NMOSD) and myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD). The issue is to determine a valuable MRI monitoring protocol to be applied in the management of NMOSD and MOGAD, as previously proposed for the monitoring of multiple sclerosis.</p><p><strong>Objectives: </strong>The objectives of this work are to establish proposals for a standardized and feasible MRI acquisition protocol, and to propose control time points for systematic MRI monitoring in the management of NMOSD and MOGAD.</p><p><strong>Methods: </strong>A steering committee composed of 7 neurologists and 5 neuroradiologists, experts in NMOSD and MOGAD from the French group NOMADMUS, defined 8 proposals based on their expertise and a review from the literature. These proposals were then submitted to a Rating Group composed of French NMOSD / MOGAD experts.</p><p><strong>Results: </strong>In the management of NMOSD and MOGAD, a consensus has been reached to perform systematic MRI of the brain, optic nerve and spinal cord, including cauda equina nerve roots, at the time of diagnosis, both without and after gadolinium administration. Moreover, it has been agreed to perform a systematic MRI scan 6 months after diagnosis, focusing on the area of interest, both without and after gadolinium administration. For long-term follow-up of NMOSD and MOGAD, and in the absence of clinical activity, it has been agreed to perform gadolinium-free MRI of the brain (+/- optic nerves) and spinal cord, every 36 months. Ideally, these MRI scans should be performed on the same MRI system, preferably a 3T MRI system for brain and optic nerve MRI, and at least a 1.5T MRI system for spinal cord MRI.</p><p><strong>Conclusions: </strong>This expert consensus approach provides physicians with proposals for the MRI management of NMOSD and MOGAD.</p>","PeriodicalId":50115,"journal":{"name":"Journal of Neuroradiology","volume":" ","pages":"101235"},"PeriodicalIF":3.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142774321","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":"Comparative efficacy, safety, and DMSO compatibility of detachable vs. non-detachable tip microcatheters in neurointerventional procedures: A systematic review and meta-analysis","authors":"Atakan Orscelik ,&nbsp;Basel Musmar ,&nbsp;Esref Alperen Bayraktar ,&nbsp;Jonathan Cortese ,&nbsp;Yigit Can Senol ,&nbsp;Sherief Ghozy ,&nbsp;Muhammed Amir Essibayi ,&nbsp;Gokce Belge Bilgin ,&nbsp;Madona Pakkam ,&nbsp;Cem Bilgin ,&nbsp;Waleed Brinjikji ,&nbsp;David F. Kallmes","doi":"10.1016/j.neurad.2024.101234","DOIUrl":"10.1016/j.neurad.2024.101234","url":null,"abstract":"<div><h3>Background</h3><div>The evolution of embolic agents necessitates the use of microcatheters compatible with dimethyl sulfoxide (DMSO), with detachable tip microcatheters (DTMs) emerging as a significant innovation aimed at reducing the risk of catheter entrapment in embolization procedures. This study aims to compare the efficacy, safety, and DMSO compatibility of DTMs with non-detachable tip microcatheters (Non-DTMs) in the context of embolization treatments for neurovascular diseases.</div></div><div><h3>Method</h3><div>Following PRISMA guidelines, a systematic literature search was conducted across PubMed, Scopus, Embase, and Web of Science databases until February 25, 2024. Primary outcomes included technical success and microcatheter-related complications, with a meta-analysis performed using a random-effects model to calculate proportions and odds ratios (OR) with 95 % confidence intervals (Cl).</div></div><div><h3>Results</h3><div>Forty-five studies involving 2185 patients and 3758 catheters (995 DTMs and 2763 Non-DTMs) were analyzed. Our analysis revealed that DTMs were associated with comparable rates of technical success (98.3 % vs. 97.6 %, <em>p</em> = 0.68), favorable outcomes (93.9 % vs. 93.6 %, <em>p =</em> 0.89), and microcatheter-related complications compared to Non-DTMs. Specifically, DTMs showed a 0.0 % rate of microcatheter entrapment and hemorrhagic complications. Intended detachment was achieved in 41.7 % (95 % CI = 27.02–57.98) of cases and premature detachment was rare (0.1 %; 95 % %CI = 0.00–1.23). In the analysis of comparative studies, microcatheter-related complications did not defer between DTM and Non-DTM groups.</div></div><div><h3>Conclusion</h3><div>Our study demonstrates the safety and efficacy of DTMs in embolization treatments, emphasizing their compatibility with DMSO-based embolic agents and their potential to enhance patient outcomes in neurointerventional procedures. Future research should focus on well-designed, larger, prospective, comparative multi-center studies to strengthen the evidence base and further optimize the use of DTMs in endovascular interventions.</div></div>","PeriodicalId":50115,"journal":{"name":"Journal of Neuroradiology","volume":"52 1","pages":"Article 101234"},"PeriodicalIF":3.0,"publicationDate":"2024-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142734350","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":"Impaired iron metabolism and cerebral perfusion patterns in unilateral middle cerebral artery stenosis or occlusion: Insights from quantitative susceptibility mapping","authors":"Yu Guo ,&nbsp;Huimin Mao ,&nbsp;Kunjian Chen ,&nbsp;Weiqiang Dou ,&nbsp;Xinyi Wang","doi":"10.1016/j.neurad.2024.101233","DOIUrl":"10.1016/j.neurad.2024.101233","url":null,"abstract":"<div><h3>Background and purpose</h3><div>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).</div></div><div><h3>Methods</h3><div>Sixty-one patients with unilateral MCA stenosis or occlusion were recruited and scored with Alberta-Stroke-Program-Early-CT-Score (ASPECTS) based on relative cerebral blood flow (rCBF) measurements to calculate the number of corresponding hypoperfusion subregions, and then divided into an extensive-hypoperfusion group (EH group), regional-hypoperfusion group (RH group), and normal-perfusion group (Control group) accordingly. The measured magnetic susceptibility of GM nuclei subregions was compared between the lesion and contralateral side for each group and among the three groups. Correlation analysis was performed to assess the relationships of magnetic susceptibility of GM nuclei with mean rCBF, National-Institutes-of-Health-stroke-scale (NIHSS) and modified-Rankin-scale (mRS) scores.</div></div><div><h3>Results</h3><div>Magnetic susceptibility in the putamen (PU) and globus pallidus (GP) at the lesion side was higher in the EH and RH groups compared with the contralateral side (all P &lt; 0.05). Susceptibility in the lesion side PU and GP showed negative correlations with mean rCBF and positive correlations with NIHSS and mRS scores (all P &lt; 0.05).</div></div><div><h3>Conclusion</h3><div>Our findings demonstrate that chronic cerebral hypoperfusion might be one cause of cerebral abnormal iron metabolism. In addition, magnetic susceptibility of PU and GP seems to be correlated with stroke scale scores, suggesting that iron deposition may play an important role in neurologic deficits after ischemic stroke.</div></div>","PeriodicalId":50115,"journal":{"name":"Journal of Neuroradiology","volume":"52 1","pages":"Article 101233"},"PeriodicalIF":3.0,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142640153","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":"Deep learning segmentation-based bone removal from computed tomography of the brain improves subdural hematoma detection","authors":"Masis Isikbay ,&nbsp;M.Travis Caton ,&nbsp;Jared Narvid ,&nbsp;Jason Talbott ,&nbsp;Soonmee Cha ,&nbsp;Evan Calabrese","doi":"10.1016/j.neurad.2024.101231","DOIUrl":"10.1016/j.neurad.2024.101231","url":null,"abstract":"<div><h3>Purpose</h3><div>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.</div></div><div><h3>Methods</h3><div>A deep learning segmentation algorithm was designed/trained for bone removal using 100 NCCTH. Segmentation accuracy was evaluated on 15 NCCTH from the same institution and 22 NCCTH from an independent external dataset using quantitative overlap analysis between automated and expert manual segmentations. The impact of bone removal on detecting SDH by junior radiology trainees was evaluated with a reader study comparing detection performance between matched cases with and without bone removal applied.</div></div><div><h3>Results</h3><div>Average Dice overlap between automated and manual segmentations from the internal and external test datasets were 0.9999 and 0.9957, which was superior to other publicly available methods. Among trainee readers, SDH detection was statistically improved using NCCTH with and without bone removal applied compared to standard NCCTH alone (P value &lt;0.001). Additionally, 12/14 (86 %) of participating trainees self-reported improved detection of extra axial blood products with bone removal, and 13/14 (93 %) indicated that they would like to have access to NCCTH bone removal in the on-call setting.</div></div><div><h3>Conclusion</h3><div>Deep learning segmentation-based NCCTH bone removal is rapid, accurate, and improves detection of SDH among trainee radiologists when used in combination with standard NCCTH. This study highlights the potential of bone removal for improving confidence and accuracy of SDH detection.</div></div>","PeriodicalId":50115,"journal":{"name":"Journal of Neuroradiology","volume":"52 1","pages":"Article 101231"},"PeriodicalIF":3.0,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142631410","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":"Intra-operative use of Augmented Reality for 3D visualisation of rotational angiography data: Feasibility and workflow demonstration using a PCOM aneurysm case","authors":"Mikkel V. Petersen,&nbsp;Mia H. Christiansen,&nbsp;Ronni Mikkelsen","doi":"10.1016/j.neurad.2024.101232","DOIUrl":"10.1016/j.neurad.2024.101232","url":null,"abstract":"<div><div>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.</div></div>","PeriodicalId":50115,"journal":{"name":"Journal of Neuroradiology","volume":"52 1","pages":"Article 101232"},"PeriodicalIF":3.0,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142606860","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":"Progressive T1 high-intensity plaques in carotid stenosis: Comparative MRI analyses in asymptomatic and symptomatic phases of low-grade stenosis","authors":"Yoshitaka Kurosaki ,&nbsp;Masanori Kinosada ,&nbsp;Hiroyuki Ikeda ,&nbsp;Haruki Yamashita ,&nbsp;Kazumichi Yoshida ,&nbsp;Masaki Chin","doi":"10.1016/j.neurad.2024.101223","DOIUrl":"10.1016/j.neurad.2024.101223","url":null,"abstract":"<div><h3>Background and Purpose</h3><div>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 (&lt;50%), focusing on intraplaque hemorrhage (IPH) and dynamic plaque changes.</div></div><div><h3>Materials and Methods</h3><div>We conducted a retrospective study analyzing 30 cases of symptomatic low-grade carotid stenosis, using carotid MRI before and after symptom onset. Key measures included relative plaque signal intensity (rSI) and high-intensity plaque (HI plaque) volume. Stepwise regression analysis examined the influence of these factors on Symptomatic rSI, Symptomatic plaque volume, and NIHSS scores.</div></div><div><h3>Results</h3><div>Significant increases were observed in rSI (1.32 ± 0.32 to 1.69 ± 0.25, p &lt; 0.001) and HI plaque volume (296.4 ± 362.7 mm³ to 717.5 ± 554.9 mm³, p &lt; 0.001) from asymptomatic to symptomatic phases. Past smoking (p = 0.008) and statin use (p = 0.04) were associated with higher Symptomatic rSI, while poor risk factor control (p = 0.03) was negatively associated. Female sex (p = 0.007) and current smoking (p = 0.009) were linked to smaller Symptomatic plaque volumes, while ischemic heart disease (p = 0.0002) and poor risk factor control (p = 0.002) predicted larger plaque volumes. Larger plaques were correlated with higher NIHSS scores (p = 0.002).</div></div><div><h3>Conclusions</h3><div>IPH and plaque volume are key markers of progression in low-grade carotid stenosis. Poor control of cardiovascular risk factors and a history of ischemic heart disease contribute to plaque burden and stroke severity. Continuous monitoring and strict risk management are essential in reducing stroke severity in these patients.</div></div>","PeriodicalId":50115,"journal":{"name":"Journal of Neuroradiology","volume":"51 6","pages":"Article 101223"},"PeriodicalIF":3.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142479309","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":"Using the sandwich technique for the treatment of sigmoid sinus diverticulum causing pulsatile tinnitus","authors":"Linggen Dong ,&nbsp;Dachao Wei ,&nbsp;Haoyu Zhu ,&nbsp;Zizheng Wang ,&nbsp;Ming Lv","doi":"10.1016/j.neurad.2024.101230","DOIUrl":"10.1016/j.neurad.2024.101230","url":null,"abstract":"","PeriodicalId":50115,"journal":{"name":"Journal of Neuroradiology","volume":"52 1","pages":"Article 101230"},"PeriodicalIF":3.0,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142512115","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}