Journal of Neuroradiology最新文献

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

{"title":"Progressive T1 high-intensity plaques in carotid stenosis: Comparative MRI analyses in asymptomatic and symptomatic phases of low-grade stenosis","authors":"","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 (<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 < 0.001) and HI plaque volume (296.4 ± 362.7 mm³ to 717.5 ± 554.9 mm³, p < 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":null,"pages":null},"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

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

{"title":"Assessment of large-scale imaging practices in patients with acute brain hemorrhage in French emergency departments","authors":"","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":null,"pages":null},"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

{"title":"Intracranial aneurysm stiffness assessment using 4D Flow MRI","authors":"","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":null,"pages":null},"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

引用次数: 0

Association of baseline blood pressure and outcomes in etiology subtypes of large vessel occlusion stroke: Data from ANGEL-ACT registry 大血管闭塞性卒中病因亚型中基线血压与预后的关系：来自 ANGEL-ACT 登记处的数据。

IF 3 3区医学

Journal of Neuroradiology Pub Date : 2024-08-09 DOI: 10.1016/j.neurad.2024.101213

{"title":"Association of baseline blood pressure and outcomes in etiology subtypes of large vessel occlusion stroke: Data from ANGEL-ACT registry","authors":"","doi":"10.1016/j.neurad.2024.101213","DOIUrl":"10.1016/j.neurad.2024.101213","url":null,"abstract":"<div><h3>Background</h3><p>Blood pressure (BP) management at the initial stage of stroke caused by large-vessel occlusion (LVO) remains challenging. We assessed the association between baseline BP and clinical and safety outcomes of endovascular treatment (EVT) in different stroke etiologies.</p></div><div><h3>Methods</h3><p>Patients with acute ischemic stroke and anterior circulation LVO were screened from a prospective, multicenter registry of EVT from November 2017 to March 2019. The primary outcome was poor 90-day outcome (modified Rankin Scale score 3–6). The safety outcome was 24 h post-procedure parenchymal hematoma (PH). The Trial of Org 101072 in Acute Stroke Treatment criteria were used for etiologic stroke classification. Restricted cubic spline and binary logistic regression analysis were performed to examine the association between study outcomes and natural log-transformed BP.</p></div><div><h3>Results</h3><p>In subgroup analyses, a U-shaped correlation existed between baseline mean arterial pressure (MAP) and poor outcome in large-artery atherosclerosis stroke only. Higher MAP was an independent risk factor compared with a central reference value (≥ 133 mm Hg vs 96–115 mm Hg; adjusted OR [aOR], 2.50; 95 % CI, 1.09 to 5.71, <em>P</em> = 0.030). Whereas elevated MAP was associated with PH (aOR, 1.58; 95 % CI 1.04 to 2.39, <em>P</em> = 0.030 for a ln10-unit increase in natural log-transformed MAP) in the range <110 mm Hg exclusively for cardioembolic stroke.</p></div><div><h3>Conclusion</h3><p>Whether it is cause or epiphenomenon, baseline BP was associated with 90-day outcome in large-artery atherosclerosis stroke, whereas in cardioembolic stroke baseline BP was correlated with post-procedure PH within a certain range. Identifying these features based on etiological subtypes may offer a reference for BP management in acute LVO stroke.</p></div>","PeriodicalId":50115,"journal":{"name":"Journal of Neuroradiology","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141914464","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

Parallel placement of Woven EndoBridge (WEB) device for the treatment of wide-necked lobulated aneurysms at the basilar tip 平行放置 Woven EndoBridge（WEB）装置治疗基底动脉端宽颈分叶状动脉瘤。

IF 3 3区医学

Journal of Neuroradiology Pub Date : 2024-07-04 DOI: 10.1016/j.neurad.2024.101212

Haoyu Zhu , Yupeng Zhang , Shikai Liang , Chuhan Jiang

引用次数: 0

Simultaneous arterial spin labeling functional MRI and fluorodeoxyglucose PET in mild chronic traumatic brain injury 轻度慢性创伤性脑损伤的同步动脉自旋标记功能磁共振成像和氟脱氧葡萄糖正电子发射计算机断层扫描

IF 3 3区医学

Journal of Neuroradiology Pub Date : 2024-06-20 DOI: 10.1016/j.neurad.2024.101211

Justin Heholt , Riya Patel , Faezeh Vedaei , George Zabrecky , Nancy Wintering , Daniel A. Monti , Ze Wang , Andrew B. Newberg , Feroze B. Mohamed

{"title":"Simultaneous arterial spin labeling functional MRI and fluorodeoxyglucose PET in mild chronic traumatic brain injury","authors":"Justin Heholt , Riya Patel , Faezeh Vedaei , George Zabrecky , Nancy Wintering , Daniel A. Monti , Ze Wang , Andrew B. Newberg , Feroze B. Mohamed","doi":"10.1016/j.neurad.2024.101211","DOIUrl":"10.1016/j.neurad.2024.101211","url":null,"abstract":"<div><h3>Background and purpose</h3><p>To determine the effect of mild chronic traumatic brain injury (cTBI) on cerebral blood flow and metabolism.</p></div><div><h3>Methods</h3><p>62 cTBI and 40 healthy controls (HCs) with no prior history of cTBI underwent both pulsed arterial spin labeling functional magnetic resonance imaging (PASL-fMRI) and fluorodeoxyglucose positron emission tomography (FDG-PET) scanning via a Siemens mMR (simultaneous PET/MRI) scanner. 30 participants also took part in a series of neuropsychological clinical measures (NCMs). Images were processed using statistical parametric mapping software relevant to each modality to generate relative cerebral blood flow (rCBF) and glucose metabolic standardized uptake value ratio (gSUVR) grey matter maps. A voxel-wise two-sample <em>T</em>-test and two-tailed gaussian random field correction for multiple comparisons was performed.</p></div><div><h3>Results</h3><p>cTBI patients showed a significant increase in rCBF and gSUVR in the right thalamus as well as a decrease in bilateral occipital lobes and calcarine sulci. An inverse relationship between rCBF and gSUVR was found in the left frontal lobe, the left precuneus and regions in the right temporal lobe. Within those regions rCBF values correlated with 9 distinct NCMs and gSUVR with 3.</p></div><div><h3>Conclusion</h3><p>Simultaneous PASL-fMRI and FDG-PET can identify functional changes in a mild cTBI population. Within this population FDG-PET identified more regions of functional disturbance than ASL fMRI and NCMs are shown to correlate with rCBF and glucose metabolism (gSUVR) in various brain regions. As a result, both imaging modalities contribute to understanding the underlying pathophysiology and clinical course of mild chronic traumatic brain injury.</p></div>","PeriodicalId":50115,"journal":{"name":"Journal of Neuroradiology","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2024-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141441005","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

Fetal and postnatal neuroimaging of SUZ12-related overgrowth: Imagawa-matsumoto syndrome 与 SUZ12 相关的过度生长的胎儿和出生后神经影像学：今川松本综合征

IF 3.5 3区医学

Journal of Neuroradiology Pub Date : 2024-06-08 DOI: 10.1016/j.neurad.2024.101210

Onur Simsek, Arastoo Vossough

引用次数: 0

Endovascular approach to posterior spinal cord AV shunts via the anterior spinal artery 通过脊髓前动脉进行脊髓后房室分流的血管内方法。

IF 3.5 3区医学

Journal of Neuroradiology Pub Date : 2024-06-03 DOI: 10.1016/j.neurad.2024.101207

Silvia Pizzuto , Jonathan Cortese , Alessandro Sgreccia , Federico Di Maria , Arturo Consoli , Georges Rodesch

引用次数: 0