Journal of Neuroradiology最新文献

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The number of recanalization attempts, procedure time and endovascular therapy outcomes in acute large core stroke patients 急性大核心脑卒中患者再通尝试次数、手术时间和血管内治疗结果。
IF 3 3区 医学
Journal of Neuroradiology Pub Date : 2025-01-09 DOI: 10.1016/j.neurad.2024.101241
Yapeng Guo , Changwei Guo , Dahong Yang , Shitao Fan , Xu Xu , Jinfu Ma , Zibao Li , Shihai Yang , Xiaolei Shi , Zhixi Wang , Wenjie Zi , Guoyong Zeng , Xianjun Huang
{"title":"The number of recanalization attempts, procedure time and endovascular therapy outcomes in acute large core stroke patients","authors":"Yapeng Guo ,&nbsp;Changwei Guo ,&nbsp;Dahong Yang ,&nbsp;Shitao Fan ,&nbsp;Xu Xu ,&nbsp;Jinfu Ma ,&nbsp;Zibao Li ,&nbsp;Shihai Yang ,&nbsp;Xiaolei Shi ,&nbsp;Zhixi Wang ,&nbsp;Wenjie Zi ,&nbsp;Guoyong Zeng ,&nbsp;Xianjun Huang","doi":"10.1016/j.neurad.2024.101241","DOIUrl":"10.1016/j.neurad.2024.101241","url":null,"abstract":"<div><h3>Introduction</h3><div>Landmark thrombectomy trials demonstrated improved functional outcomes after endovascular therapy (EVT) for large core strokes (LCSs). This study explored the impact of recanalization attempts and procedure time (PT) on outcomes in LCS patients.</div></div><div><h3>Patients and Methods</h3><div>This was a retrospective study of patients with LCSs who underwent EVT from a prospective multicentre cohort. LCS was defined as an Alberta Stroke Program Early Computed Tomography Score of 0 to 5. Patients were divided into 6 groups (unsuccessful reperfusion [modified Thrombolysis in Cerebral Infarction Scale (mTICI) 0–2a] and successful reperfusion [mTICI, 2b/3]) after 1, 2, 3, 4, or &gt;4 attempts. The primary outcome was a favorable 90-day mRS score of 0–3. Secondary outcomes included mRS 0–4, 90-day mortality, and 48-hour rates of symptomatic (sICH) and any intracranial hemorrhage (aICH).</div></div><div><h3>Results</h3><div>A total of 447 patients were analysed. 388 with successful reperfusion, 59 without.Successful reperfusion during the first 3 passes increased the odds of favourable functional outcomes [attempt 1: aOR, 4.454 (1.723–11.514),p=0.002; 2: aOR, 3.762 (1.437–9.847),p=0.07; or 3: aOR, 3.619 (1.254–10.440),p=0.017] and decreased mortality at 90 days [(attempt 1: aOR, 0.336 (0.155–0.727),p=0.006; 2: aOR, 0.346 (0.160–0.746),p=0.007; or 3: aOR, 0.395 (0.164–0.953),p=0.039]. A shorter PT increased the odds of a favourable functional outcome [aOR, 0.991 (0.985–0.997),p=0.002]. PT may reduce the association between the number of attempts and patient outcomes. No associations were found between the number of attempts and sICH or aICH, whereas there was an increasing trend in the proportion of aICH or sICH when the number of attempts was more than two.</div></div><div><h3>Conclusion</h3><div>In patients with LCSs who underwent EVT, successful reperfusion within the first 3 attempts and a shorter PT were associated with favourable functional outcomes. However, the effect size of the association between the number of attempts and clinical outcomes may gradually decrease with extension of the PT.</div></div>","PeriodicalId":50115,"journal":{"name":"Journal of Neuroradiology","volume":"52 2","pages":"Article 101241"},"PeriodicalIF":3.0,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143025545","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}
引用次数: 0
Comparative efficacy, safety, and DMSO compatibility of detachable vs. non-detachable tip microcatheters in neurointerventional procedures: A systematic review and meta-analysis 神经介入手术中可拆卸与不可拆卸尖端微导管的疗效、安全性和 DMSO 兼容性比较:系统回顾与元分析》。
IF 3 3区 医学
Journal of Neuroradiology Pub Date : 2024-11-24 DOI: 10.1016/j.neurad.2024.101234
Atakan Orscelik , Basel Musmar , Esref Alperen Bayraktar , Jonathan Cortese , Yigit Can Senol , Sherief Ghozy , Muhammed Amir Essibayi , Gokce Belge Bilgin , Madona Pakkam , Cem Bilgin , Waleed Brinjikji , David F. Kallmes
{"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}
引用次数: 0
Impaired iron metabolism and cerebral perfusion patterns in unilateral middle cerebral artery stenosis or occlusion: Insights from quantitative susceptibility mapping 单侧大脑中动脉狭窄或闭塞时受损的铁代谢和大脑灌注模式:定量易感图的启示。
IF 3 3区 医学
Journal of Neuroradiology Pub Date : 2024-11-14 DOI: 10.1016/j.neurad.2024.101233
Yu Guo , Huimin Mao , Kunjian Chen , Weiqiang Dou , Xinyi Wang
{"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}
引用次数: 0
Deep learning segmentation-based bone removal from computed tomography of the brain improves subdural hematoma detection 基于深度学习分割的脑部计算机断层扫描骨质移除改进了硬膜下血肿检测。
IF 3 3区 医学
Journal of Neuroradiology Pub Date : 2024-11-08 DOI: 10.1016/j.neurad.2024.101231
Masis Isikbay , M.Travis Caton , Jared Narvid , Jason Talbott , Soonmee Cha , Evan Calabrese
{"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}
引用次数: 0
Intra-operative use of Augmented Reality for 3D visualisation of rotational angiography data: Feasibility and workflow demonstration using a PCOM aneurysm case 术中使用增强现实技术实现旋转血管造影数据的三维可视化:使用 PCOM 动脉瘤病例进行可行性和工作流程演示。
IF 3 3区 医学
Journal of Neuroradiology Pub Date : 2024-11-05 DOI: 10.1016/j.neurad.2024.101232
Mikkel V. Petersen, Mia H. Christiansen, Ronni Mikkelsen
{"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}
引用次数: 0
Progressive T1 high-intensity plaques in carotid stenosis: Comparative MRI analyses in asymptomatic and symptomatic phases of low-grade stenosis 颈动脉狭窄的进行性 T1 高强度斑块:低级狭窄无症状期和有症状期的 MRI 比较分析
IF 3 3区 医学
Journal of Neuroradiology Pub Date : 2024-11-01 DOI: 10.1016/j.neurad.2024.101223
Yoshitaka Kurosaki , Masanori Kinosada , Hiroyuki Ikeda , Haruki Yamashita , Kazumichi Yoshida , Masaki Chin
{"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}
引用次数: 0
Using the sandwich technique for the treatment of sigmoid sinus diverticulum causing pulsatile tinnitus 使用三明治技术治疗引起搏动性耳鸣的乙状窦憩室。
IF 3 3区 医学
Journal of Neuroradiology Pub Date : 2024-10-24 DOI: 10.1016/j.neurad.2024.101230
Linggen Dong , Dachao Wei , Haoyu Zhu , Zizheng Wang , Ming Lv
{"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}
引用次数: 0
Assessment of large-scale imaging practices in patients with acute brain hemorrhage in French emergency departments 评估法国急诊科对急性脑出血患者进行大规模影像学检查的做法:出血性中风的急诊造影实践。
IF 3 3区 医学
Journal of Neuroradiology Pub Date : 2024-09-28 DOI: 10.1016/j.neurad.2024.101222
Rozenn Mainguy , Amandine Crombe , Mylène Seux , Jérôme Bailleux , Berengère Delorme , Marco Pasi , Jean Philippe Cottier , Grégoire Boulouis , Guillaume Gorincour
{"title":"Assessment of large-scale imaging practices in patients with acute brain hemorrhage in French emergency departments","authors":"Rozenn Mainguy ,&nbsp;Amandine Crombe ,&nbsp;Mylène Seux ,&nbsp;Jérôme Bailleux ,&nbsp;Berengère Delorme ,&nbsp;Marco Pasi ,&nbsp;Jean Philippe Cottier ,&nbsp;Grégoire Boulouis ,&nbsp;Guillaume Gorincour","doi":"10.1016/j.neurad.2024.101222","DOIUrl":"10.1016/j.neurad.2024.101222","url":null,"abstract":"<div><h3>Objective</h3><div>Intracerebral hemorrhage (ICH) is a life-threatening condition, where imaging plays a crucial role but remains poorly standardized. Our main objective was to analyze the imaging protocols used during the acute phase of ICH and ascertain the proportion of patients diagnosed with secondary hemorrhage.</div></div><div><h3>Patients and methods</h3><div>A multicenter retrospective observational study was conducted across over 100 French hospitals affiliated with a national tele-imaging network dedicated to emergency imaging. Among patients managed in the “Stroke Alert” pathway for suspected acute stroke from March 2021 to April 2023, those with ICH diagnosed within 24 h of symptoms onset were identified. Their imaging reports were reviewed to identify the imaging modality used and protocols performed and investigate whether a secondary cause was identified.</div></div><div><h3>Results</h3><div>Of the 18,356 patients included in the ”Stroke Alert” pathway, 662 cerebral hemorrhages were identified (3.6 %). Computed tomography (CT) was the most widely used imaging modality in the acute phase (71.8 % of examinations). Vascular imaging was performed in 78 % of patients with cerebral hemorrhage, most often CT angiography or TOF magnetic resonance angiography. A secondary cause was identified in 8.2 % (54/662) of cerebral hemorrhages, including vascular imaging in the vast majority of cases (92.6 %).</div></div><div><h3>Conclusion</h3><div>Optimization and standardization of imaging protocols in the acute phase of ICH is essential to improve the detection of its secondary causes, particularly vascular, requiring urgent treatment. Vascular imaging improves their early detection.</div></div>","PeriodicalId":50115,"journal":{"name":"Journal of Neuroradiology","volume":"51 6","pages":"Article 101222"},"PeriodicalIF":3.0,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142331453","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}
引用次数: 0
Intracranial aneurysm stiffness assessment using 4D Flow MRI 利用 4D 流式磁共振成像评估颅内动脉瘤的硬度。
IF 3 3区 医学
Journal of Neuroradiology Pub Date : 2024-09-19 DOI: 10.1016/j.neurad.2024.101221
Satoshi Koizumi , Taichi Kin , Tetsuro Sekine , Satoshi Kiyofuji , Motoyuki Umekawa , Nobuhito Saito
{"title":"Intracranial aneurysm stiffness assessment using 4D Flow MRI","authors":"Satoshi Koizumi ,&nbsp;Taichi Kin ,&nbsp;Tetsuro Sekine ,&nbsp;Satoshi Kiyofuji ,&nbsp;Motoyuki Umekawa ,&nbsp;Nobuhito Saito","doi":"10.1016/j.neurad.2024.101221","DOIUrl":"10.1016/j.neurad.2024.101221","url":null,"abstract":"<div><h3>Background</h3><div>Although arterial stiffness is known as a biomarker for cardiovascular events and stroke, there is limited information in the literature regarding the stiffness of intracranial aneurysms. In this study, we aim to assess the stiffness of intracranial aneurysms using 4D Flow MRI.</div></div><div><h3>Methods</h3><div>A total of 27 aneurysms in 25 patients with internal carotid artery aneurysms were included in this study. Using 4D Flow MRI, we measured the arterial pulse wave form during a cardiac cycle at planes proximal and distal to the target aneurysm. The damping of these waveforms through the aneurysm was defined as the aneurysm damping index (ADI) and compared to the contralateral side. We also investigated the clinical factors related to the ADI.</div></div><div><h3>Results</h3><div>ADI assessment was successful in all cases. The average ADI was 1.18±0.28, which was significantly larger than 1.0 (<em>P</em> = 0.0027 [<em>t</em>-test]). The ADI on the aneurysm side was larger than on the contralateral side (1.19±0.30 vs 1.05±0.17, <em>P</em> = 0.029 [<em>t</em>-test]). On multivariate analysis, the use of beta-blockers (β=0.46, <em>P</em> = 0.015) and smoking history (β=-0.22, <em>P</em> = 0.024) showed a significant correlation with ADI.</div></div><div><h3>Conclusion</h3><div>We have proposed a novel method to observe arterial pulse wave dumping through intracranial aneurysm using 4D Flow MRI. The damping can be quantitatively observed, and the ADI has correlations with clinical factors such as antihypertensive drugs and smoking. Further studies should focus more on evaluating aneurysm stiffness and its clinical applications.</div></div>","PeriodicalId":50115,"journal":{"name":"Journal of Neuroradiology","volume":"51 6","pages":"Article 101221"},"PeriodicalIF":3.0,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0150986124001482/pdfft?md5=e9a97069eda827fd9dea8fda8b606792&pid=1-s2.0-S0150986124001482-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142299817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
PET-MRI neuroimaging of neurovascular uncoupling related to BBB dysfunction: beyond mild traumatic injury 与 BBB 功能障碍有关的神经血管解偶联的 PET-MRI 神经成像:超越轻度创伤
IF 3 3区 医学
Journal of Neuroradiology Pub Date : 2024-08-29 DOI: 10.1016/j.neurad.2024.101219
Eric Guedj, Tatiana Horowitz, Brieg Dissaux, Douraied Ben Salem
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