Clinical Neuroradiology最新文献_第10页

Diagnostic Performance of MRA for UnrupturedAneurysms at the Distal ICA. MRA对ICA远端未破裂动脉瘤的诊断价值。

IF 2.8 3区医学

Clinical Neuroradiology Pub Date : 2022-06-01 Epub Date: 2022-01-24 DOI: 10.1007/s00062-021-01076-4

Guangchen He, Jienan Wang, Yiran Zhang, Minghua Li, Haitao Lu, Yingsheng Cheng, Yueqi Zhu

{"title":"Diagnostic Performance of MRA for UnrupturedAneurysms at the Distal ICA.","authors":"Guangchen He, Jienan Wang, Yiran Zhang, Minghua Li, Haitao Lu, Yingsheng Cheng, Yueqi Zhu","doi":"10.1007/s00062-021-01076-4","DOIUrl":"https://doi.org/10.1007/s00062-021-01076-4","url":null,"abstract":"Purpose: Unruptured intracranial aneurysms (UIAs) at the distal internal carotid artery (ICA) (segments C5-C7) are difficult to accurately display on computed tomography angiography (CTA) due to the influences of bone structures and vessel curvature. We investigated the utility of three-dimensional time-of-flight magnetic resonance angiography (3D-TOF-MRA) at 3.0‑T for the detection of morphologic features compared to digital subtraction angiography (DSA).Methods: This retrospective study included 2398 patients between January 2015 and May 2020 who underwent 3D-TOF-MRA and DSA within 3 months. Morphologic features including aneurysm size, neck width, shape and relation to adjacent arteries and other diagnostic parameters were recorded. Three observers blinded to the clinical and DSA results independently analyzed MRA data sets. The statistical difference of each aneurysm-specific variable was performed using χ2-tests and multivariate logistic regression analysis.Results: A total of 551 aneurysms in 514 patients were confirmed at the distal ICA by DSA. Patient-based, aneurysm-based and location-based evaluations with 3D-TOF-MRA yielded high diagnostic accuracy in the detection of target UIAs. The accuracy of displayed morphologic features was 94.9% for size, 97.2% for neck width, 92.6% for shape, and 96.4% for relationship to adjacent vessels. Multivariate logistic regression showed that tiny (P < 0.001) or giant (P = 0.039) size and a lobulated shape (P = 0.006) significantly affected the morphologic assessment on 3D-TOF-MRA.Conclusion: Three-dimensional TOF-MRA can accurately depict and display morphologic features of distal ICA UIAs. Tiny or giant-sized distal ICA aneurysms and with lobulation tend to carry a great risk of misdiagnosis in morphologic assessments.","PeriodicalId":49298,"journal":{"name":"Clinical Neuroradiology","volume":"32 2","pages":"507-515"},"PeriodicalIF":2.8,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39944661","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

The "Shiny and Thick High Heel Sign" : A novel radiologic sign for detecting intracranial dural arteriovenous fistulas with time-of-flight magnetic resonance angiography. “闪亮厚高跟鞋征”:飞行时间磁共振血管造影检测颅内硬脑膜动静脉瘘的一种新的影像学征象。

IF 2.8 3区医学

Clinical Neuroradiology Pub Date : 2022-06-01 Epub Date: 2021-06-08 DOI: 10.1007/s00062-021-01036-y

Hannes Schacht, Inke Regina König, Johannes Hensler, Peter Schramm, Jan Küchler, Claudia Ditz, Alexander Neumann

{"title":"The \"Shiny and Thick High Heel Sign\" : A novel radiologic sign for detecting intracranial dural arteriovenous fistulas with time-of-flight magnetic resonance angiography.","authors":"Hannes Schacht, Inke Regina König, Johannes Hensler, Peter Schramm, Jan Küchler, Claudia Ditz, Alexander Neumann","doi":"10.1007/s00062-021-01036-y","DOIUrl":"https://doi.org/10.1007/s00062-021-01036-y","url":null,"abstract":"Purpose: Together with the foramen ovale, the middle meningeal artery (MMA) looks like a high heel shoe print on axial time-of-flight magnetic resonance angiography (TOF-MRA) images, with the MMA resembling the heel. Cranial dural arteriovenous fistulas (DAVF) are often fed by the MMA, which can lead to an increase of signal intensity and diameter of this vessel, resulting in a more \"shiny\" and \"thick\" high heel print appearance than on the contralateral side. We describe this finding as a novel radiologic sign and provide cut-off values for the ratios of MMA signal intensities and diameters for predicting the presence of a DAVF.Methods: A total of 84 TOF-MRA examinations of 44 patients with DAVFs (40 with unilateral MMA feeders, 4 with bilateral feeders) and of 40 patients without DAVFs were included. Diameters and signal intensities of both MMAs were measured by two raters and evaluated using receiver operating characteristic analysis.Results: The diameters of feeding and non-feeding MMAs differed significantly, as did the ratios of signal intensities and of diameters of DAVF and control patients (P < 0.0001). Cut-off values were 1.25 for average signal intensity ratio (shiny high heel sign) and 1.21 for diameter ratio (thick high heel sign). The combination of the \"shiny\" and the \"thick\" high heel sign resulted in the highest sensitivity (92.5%) and positive predictive value (95%).Conclusion: The described sign seems promising for the detection of DAVFs with noncontrast-enhanced MRI. The TOF-MRA source images should be reviewed with special attention to the MMA.","PeriodicalId":49298,"journal":{"name":"Clinical Neuroradiology","volume":"32 2","pages":"465-470"},"PeriodicalIF":2.8,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s00062-021-01036-y","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39008159","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: 1

Clinical outcomes of adjunct sinus stenting in dural arteriovenous fistulas : Role of flow restoration in steno-occlusion and cortical venous reflux. 硬脑膜动静脉瘘辅助窦支架置入术的临床效果:血流恢复在狭窄闭塞和皮质静脉回流中的作用。

IF 2.8 3区医学

Clinical Neuroradiology Pub Date : 2022-06-01 Epub Date: 2021-05-31 DOI: 10.1007/s00062-021-01031-3

Yen-Heng Lin, Chung-Wei Lee, Hon-Man Liu

{"title":"Clinical outcomes of adjunct sinus stenting in dural arteriovenous fistulas : Role of flow restoration in steno-occlusion and cortical venous reflux.","authors":"Yen-Heng Lin, Chung-Wei Lee, Hon-Man Liu","doi":"10.1007/s00062-021-01031-3","DOIUrl":"https://doi.org/10.1007/s00062-021-01031-3","url":null,"abstract":"Purpose: This study investigated the clinical outcomes and follow-up results of venous sinus stenting (VSS) for constrictive dural sinus restoration in patients with intracranial dural arteriovenous fistulas (DAVFs). We hypothesized that this treatment would have durable benefits in such patients.Methods: Patients who underwent VSS for DAVFs with cortical venous reflux between January 2008 and June 2020 were identified after a retrospective review (n =18). Clinical and endovascular treatment data and follow-up information were reviewed.Results: The mean age of the 18 patients was 59.9 years. Stents were implanted in 10 previously occluded sinuses and 9 stenotic sinuses in addition to endovascular embolization. One patient received bilateral VSS. Subdural hemorrhage occurred in one patient after recanalization for embolization, followed by uneventful stenting. In 17 patients with clinical follow-up, the median follow-up time was 59.5 months (interquartile range 18 to 84 months). Of these, sixteen patients had follow-up vascular imaging, revealing AVF obliteration in 6 patients (38%) and stent patency in 11 (69%). Retreatment was performed for 8 (50%) patients. The mean follow-up modified Rankin scale score was 1.28. All patients had longstanding symptomatic improvement.Conclusion: Restoration of sinus flow in DAVFs with cortical venous reflux through VSS has an acceptable complication rate and long-term symptomatic control; however, retreatment is often required, and stent occlusion is not uncommon.","PeriodicalId":49298,"journal":{"name":"Clinical Neuroradiology","volume":"32 2","pages":"455-464"},"PeriodicalIF":2.8,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s00062-021-01031-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39036832","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: 2

Societies‘ Communications 社团通讯

IF 2.8 3区医学

Clinical Neuroradiology Pub Date : 2022-05-25 DOI: 10.1007/s00062-022-01169-8

引用次数: 0

Freiburg Neuropathology Case Conference 弗赖堡神经病理学案例会议

IF 2.8 3区医学

Clinical Neuroradiology Pub Date : 2022-05-11 DOI: 10.1007/s00062-022-01175-w

Marius Schwabenland, E. A. Barvulsky, J. Nakagawa, M. Prinz, H. Urbach, D. Erny, C. Taschner

引用次数: 0

Correction to: Occlusion Type, Number of Recanalization Passages and Dose Program Determine Radiation Dose in Endovascular Stroke Thrombectomy 更正：闭塞类型、再通次数和剂量程序决定血管内卒中血栓切除术的辐射剂量

IF 2.8 3区医学