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Specialty: Radiology
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Total 18 results found since Jan 2013.

Structurofunctional resting-state networks correlate with motor function in chronic stroke
Conclusion The results demonstrate that changes after a stroke in both intrinsic and network-based structurofunctional correlations at rest are correlated with motor function, underscoring the importance of residual structural connectivity in cortical networks.
Source: NeuroImage: Clinical - July 29, 2017 Category: Radiology Source Type: research

Stroke Recurrence in Children with Vertebral Artery Dissecting Aneurysm PEDIATRICS
CONCLUSIONS: Vertebral artery dissecting aneurysm is often missed on the initial diagnostic evaluation of children presenting with stroke. In children with vertebral artery dissection, the presence of an aneurysm is associated with stroke presentation at a younger age and stroke recurrence.
Source: American Journal of Neuroradiology - June 7, 2022 Category: Radiology Authors: Ritchey, Z., Bernard, T. J., Fenton, L. Z., Maloney, J. A., Mirsky, D. M., Neuberger, I., Sriram, I., Seinfeld, J., Stence, N. V. Tags: PEDIATRICS Source Type: research

Stroke assessment with intravoxel incoherent motion diffusion‐weighted MRI
This study aimed to determine the potential utility of IVIM in characterizing brain diffusion and perfusion properties for clinical stroke. The multi‐b‐value diffusion‐weighted images of 101 patients diagnosed with acute/subacute ischemic stroke were retrospectively evaluated. The diffusion coefficient D, representing the water apparent diffusivity, was obtained by fitting the diffusion data with increasing high b‐values to a simple mono‐exponential model. The IVIM‐derived perfusion parameters, pseudodiffusion coefficient D*, vascular volume fraction f and blood flow‐related parameter fD*, were calculated wit...
Source: NMR in Biomedicine - January 8, 2016 Category: Radiology Authors: Shiteng Suo, Mengqiu Cao, Wanqiu Zhu, Lei Li, Jun Li, Fei Shen, Jinyan Zu, Zien Zhou, Zhiguo Zhuang, Jianxun Qu, Zengai Chen, Jianrong Xu Tags: Research article Source Type: research

Contrast-induced nephropathy: A dilemma between loss of neurons or nephrons in the setting of endovascular treatment of acute ischemic stroke.
CONCLUSION: Contrast-induced nephropathy is a relatively common complication after endovascular treatment of acute ischemic stroke and is associated with worse outcome in patients with this condition. However, there is no increase in the frequency of hemodialysis after the use of iodinated contrast medium. PMID: 31645156 [PubMed - as supplied by publisher]
Source: Interventional Neuroradiology - October 27, 2019 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Viz.ai Implementation of Stroke Augmented Intelligence and Communications Platform to Improve Indicators and Outcomes for a Comprehensive Stroke Center and Network ADULT BRAIN
CONCLUSIONS: There was an immediate improvement following Viz.ai implementation for both direct arriving and telemedicine transfer thrombectomy cases. In the greatest opportunity subset (direct arriving large-vessel occlusion-OffHours: direct arriving cases requiring team mobilization off-hours), we noted a 39% improvement. With Viz.ai, we noted that immediate access to images and streamlined communications improved door-to-groin time metrics for thrombectomy. These results have implications for future care processes and can be a model for centers striving to optimize workflow and improve thrombectomy timeliness.
Source: American Journal of Neuroradiology - January 11, 2023 Category: Radiology Authors: Figurelle, M. E., Meyer, D. M., Perrinez, E. S., Paulson, D., Pannell, J. S., Santiago-Dieppa, D. R., Khalessi, A. A., Bolar, D. S., Bykowski, J., Meyer, B. C. Tags: ADULT BRAIN Source Type: research

Clinical perspective in relation to age in patients treated with thrombectomy for anterior circulation stroke in a stroke center in Colombia
CONCLUSIONS: Age younger than 80 is a significant predictor for results and long-term outcomes in patients suffering from stroke, and in patients older than 80 years old a Thrombolysis in Cerebral Infarction score 2b-3 is a predictor of good outcomes. Further studies are needed to evaluate the relationship between intrahospital complications and long-term outcomes.PMID:36751025 | DOI:10.1177/15910199231153195
Source: Interventional Neuroradiology - February 8, 2023 Category: Radiology Authors: Sauder A C árdenas Andr és Vásquez Andr és F Ortiz Paula A Correa Daniela D Vera Diego A Ram írez Maria A Florez Miguel E Ochoa Melquizidel Galvis Oliverio Vargas Carlos A Ferreira Daniel Mantilla Source Type: research

The impact of constraint induced movement therapy on brain activation in chronic stroke patients with upper extremity paralysis: An fMRI study
This study is designed to explore the impact of constraint‐induced movement therapy (CIMT) on brain activation in chronic stroke patients with upper extremity paralysis and seek valuable predictors of recovery. Six chronic stroke patients with right hand dysfunction and nine healthy control subjects participated in the study. The patient's hand function was assessed by the Action Research Arm Test and statistical significance was determined by a paired Student's t‐tests. We conducted functional magnetic resonance imaging and analyzed the data using Analysis of Functional Neuroimages software. After CIMT, function of th...
Source: International Journal of Imaging Systems and Technology - August 13, 2014 Category: Radiology Authors: Bo Wen, Lin Ma, Changshui Weng Tags: Research Article Source Type: research

Quantitative assessment of hyperacute cerebral infarction with intravoxel incoherent motion MR imaging: Initial experience in a canine stroke model
ConclusionIVIM imaging could simultaneously evaluate the diffusion and microvascular perfusion characteristics in hyperacute strokes.Level of Evidence:2J. Magn. Reson. Imaging 2016
Source: Journal of Magnetic Resonance Imaging - November 29, 2016 Category: Radiology Authors: Qian ‐Qian Gao, Shan‐Shan Lu, Xiao‐Quan Xu, Cheng‐Jiang Wu, Xing‐Long Liu, Sheng Liu, Hai‐Bin Shi Tags: Original Research Source Type: research

SNMMI 2020: PET radiotracer measures stroke recovery
A new PET radiotracer may one day help clinicians evaluate stroke recovery,...Read more on AuntMinnie.comRelated Reading: SNMMI 2020: PET/MRI finds location of chronic pain in patients SNMMI 2020: How nuclear medicine handled COVID-19 SNMMI 2020: Radionuclide treatment paves way for immunotherapy SNMMI 2020: Medical students key to the specialty's future Digital FDG-PET offers insights into hearing loss
Source: AuntMinnie.com Headlines - July 15, 2020 Category: Radiology Source Type: news

Risk Factors for Ischemic Complications following Pipeline Embolization Device Treatment of Intracranial Aneurysms: Results from the IntrePED Study INTERVENTIONAL
CONCLUSIONS: Ischemic stroke following PED treatment is an uncommon-but-devastating complication. Fusiform aneurysms were the only variable independently associated with postoperative stroke.
Source: American Journal of Neuroradiology - September 8, 2016 Category: Radiology Authors: Brinjikji, W., Lanzino, G., Cloft, H. J., Siddiqui, A. H., Boccardi, E., Cekirge, S., Fiorella, D., Hanel, R., Jabbour, P., Levy, E., Lopes, D., Lylyk, P., Szikora, I., Kallmes, D. F. Tags: INTERVENTIONAL Source Type: research

Impact of bi-planar localization of the tricuspid valve on the evaluation of right ventricular functional parameters in the short axis plane
AbstractPrimary objective was to evaluate by cardiac MRI the accuracy of right ventricular stroke volume (RVSV) measurement in the short-axis (SA) plane with cross-referencing of the tricuspid plane. 2D phase-contrast measurement at the main pulmonary artery (PSV) was the reference. Secondary objective was to analyze the reproducibility of RV functional parameters. In this single-center retrospective study, 41 patients (mean age 40  ± 18 years; age range 16–71 years; M/F sex ratio 51%) referred for various acquired and congenital cardiopathies underwent CMR including SA balanced steady state free precession imagin...
Source: The International Journal of Cardiovascular Imaging - September 13, 2020 Category: Radiology Source Type: research

Efficient method for analyzing MR real‐time cines: Toward accurate quantification of left ventricular function
ConclusionCompared with the laborious frame‐by‐frame visual inspection, as conventionally adopted, the proposed method is efficient in analyzing real‐time cines for the accurate quantification of LV function without excessively manual interactions.J. Magn. Reson. Imaging 2015.
Source: Journal of Magnetic Resonance Imaging - March 1, 2015 Category: Radiology Authors: Yin Wu, Ke Jiang, Na Zhang, Yinzhu Gao, Yucheng Chen, Hairong Zheng, Xin Liu, Yiu‐Cho Chung Tags: Technical Development Source Type: research

Improved workflow for quantifying left ventricular function via cardiorespiratory ‐resolved analysis of free‐breathing MR real‐time cines
ConclusionThe proposed method is feasible for efficient measurement of LV function from real‐time cines.Level of Evidence:2J. Magn. Reson. Imaging 2017
Source: Journal of Magnetic Resonance Imaging - January 26, 2017 Category: Radiology Authors: Yin Wu, Qian Wan, Jing Zhao, Xin Liu, Hairong Zheng, Yiu ‐Cho Chung, Yucheng Chen Tags: Technical Development Source Type: research

Ultra-low-dose multiphase CT angiography derived from CT perfusion data in patients with middle cerebral artery stenosis
ConclusionCTPA derived from CTP datasets reconstructed with IMR algorithm offers image quality comparable to routine CTA and provides time-resolved evaluation of collaterals in patients with MCA ischemic disease.
Source: Neuroradiology - October 29, 2019 Category: Radiology Source Type: research