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Specialty: Radiology
Procedure: Ultrasound

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Total 378 results found since Jan 2013.

Exploring Carotid Sonographic Parameters Associated With Stroke Risk Among Hypertensive Stroke Patients Compared to Hypertensive Controls
Conclusions— Among hypertensive patients, the common carotid artery diameter and EDV are significantly associated with stroke risk. These findings have implications for development and evaluation of stroke prevention programs.
Source: Journal of Ultrasound in Medicine - May 27, 2014 Category: Radiology Authors: Agunloye, A. M., Owolabi, M. O. Tags: Original Research Source Type: research

Relationship of spontaneous microembolic signals to risk stratification, recurrence, severity, and mortality of ischemic stroke: a prospective study
In conclusion, MES demonstrated a significant correlation with symptomatic carotid disease and a shorter DELAY until monitoring, and could be a predictor for the early recurrence of stroke in the long term.
Source: Critical Ultrasound Journal - February 10, 2020 Category: Radiology Source Type: research

Prehospital stroke diagnostics based on neurological examination and transcranial ultrasound
Conclusions The study demonstrates the feasibility and high diagnostic accuracy of emergency transcranial ultrasound assessment combined with neurological examinations for major ischemic stroke. Future combination with telemedical support, point-of-care analysis of blood serum markers, and probability algorithms of prehospital stroke diagnosis including ultrasound may help to speed up stroke treatment.
Source: Critical Ultrasound Journal - February 27, 2014 Category: Radiology Source Type: research

Duplex Sonographic Diagnosis of Perinatal Hemorrhagic Stroke.
Abstract Children are particularly at risk for stroke in the neonatal period. Neonatal hemorrhagic stroke is rarer than ischemic stroke. The incidence is 40.7/100 000 live births. Hemorrhagic stroke is caused by a disruption in venous drainage usually due to local thrombosis. As a result of the nonspecific clinical symptoms in this age group, diagnosis is usually made too late. The only relatively specific symptom is a cerebral seizure during the first week of life. Therefore, stroke should be ruled out by diagnostic imaging in the case of any seizure in the first days of life. The diagnostic method of choice is...
Source: Ultraschall in der Medizin - September 26, 2017 Category: Radiology Authors: Deeg KH Tags: Ultraschall Med Source Type: research

Sonographic and Doppler Sonographic Diagnosis of  Neonatal Ischemic Stroke.
Sonographic and Doppler Sonographic Diagnosis of Neonatal Ischemic Stroke. Ultraschall Med. 2017 Jul 13;: Authors: Deeg KH Abstract Children are particularly at risk for stroke in the neonatal period. 1/3 of all strokes in children occur during the perinatal period. The incidence of perinatal stroke is 1:4000. A differentiation is made between ischemic stroke and hemorrhagic stroke. Ischemic strokes are caused by arterial occlusion due to thrombosis or embolism. As a result of the nonspecific clinical symptoms in this age group, diagnosis is usually made too late. The only relatively specific symptom...
Source: Ultraschall in der Medizin - July 13, 2017 Category: Radiology Authors: Deeg KH Tags: Ultraschall Med Source Type: research

Screening with doppler ultrasound for carotid artery stenosis in patients with stroke or transient ischaemic attack
ConclusionsIn a major Danish stroke centre, the national recommended time limit of 4 days in patients with stroke or transient ischaemic attack for screening for carotid stenosis was met in almost all patients. No patients were excluded from surgery as a result of a time limit of 14 days from admission to surgery being exceeded. Of all patients screened, 1·2% underwent carotid endarterectomy.
Source: Clinical Physiology and Functional Imaging - August 7, 2017 Category: Radiology Authors: Tatiana Kristensen, Peter Hovind, Helle K. Iversen, Ulrik B. Andersen Tags: Original Article Source Type: research

Nonstenotic Carotid Plaques and Embolic Stroke of Undetermined Source: A Multimodality Review EXTRACRANIAL VASCULAR
Symptomatic nonstenotic carotid artery disease has been increasingly recognized as a thromboembolic source in patients who would otherwise be classified as having embolic stroke of undetermined source. Evidence suggests that certain plaque features seen on sonography, CT, and MR imaging in nonstenotic carotid artery disease may predispose to recurrent stroke in patients with embolic stroke of undetermined source. We performed a focused literature review to further study plaque features in the context of embolic stroke of undetermined source and to determine which plaque features may be associated with ipsilateral ischemic ...
Source: American Journal of Neuroradiology - February 1, 2023 Category: Radiology Authors: Larson, A. S., Brinjikji, W., Lekah, A., Klaas, J. P., Lanzino, G., Huston, J., Saba, L., Benson, J. C. Tags: EXTRACRANIAL VASCULAR Source Type: research

Effects of chronic flexed wrist posture on the elasticity and crosssectional area of the median nerve at the carpal tunnel among chronic stroke patients.
CONCLUSIONS: These results suggest that chronic flexed wrist posture may cause atrophy of the median nerve due to chronic compression after stroke and increase in the stiffness of the median nerve. PMID: 29400371 [PubMed - in process]
Source: Medical Ultrasonography - February 7, 2018 Category: Radiology Tags: Med Ultrason Source Type: research

Evidence of Changes in Brain Tissue Stiffness After Ischemic Stroke Derived From Ultrasound-Based Elastography
Conclusions The differences between intrahemispheric averages of shear moduli of the brains of animals with stroke at 24 and 72 hours after stroke induction likely reflect the initial formation of edema and reduction of cerebral blood flow known to develop ipsilateral to ischemic infarction, the known transient increase in intracranial pressure, as well as the known initial reduction of blood flow and subsequent development of edema in the contralateral hemisphere (diaschisis). Thus, elastography offers a possible method to detect subtle changes in brain after ischemic stroke.
Source: Journal of Ultrasound in Medicine - February 26, 2013 Category: Radiology Authors: Xu, Z. S., Lee, R. J., Chu, S. S., Yao, A., Paun, M. K., Murphy, S. P., Mourad, P. D. Tags: Original Research Source Type: research

Interventional Stroke Therapy
Interventional treatment of acute ischemic stroke is currently a “very hot topic,” because acute stroke is a leading cause of disability and one of the most common causes of death worldwide. Ischemic stroke represents 80% to 85% of all strokes. Acute occlusion of cerebral arteries is the most frequent cause of ischemic stroke. Stroke mortality varies between 10% and 17% during the first month, and only about 30% of ischemic stroke patients are independent after 3 mo. Early re-canalization of the occluded brain artery is associated with a significantly higher chance of independence after 90 d and with a significant redu...
Source: Ultrasound in Medicine and Biology - September 3, 2013 Category: Radiology Authors: David Školoudík Tags: Book Reviews Source Type: research

Spontaneous echo‐contrast in the internal jugular veins of patients with ischemic stroke
ConclusionsInternal jugular vein SEC was found more frequently in stroke patients than in controls. However, local as well as systemic factors must be considered in the interpretation of this finding. © 2014 Wiley Periodicals, Inc. J Clin Ultrasound, 2014
Source: Journal of Clinical Ultrasound - October 27, 2014 Category: Radiology Authors: Jay Chol Choi, Yun‐Hee Oh, Joong Goo Kim, Hyeon‐Ju Kim, Mi‐Hee Kong, Dong‐Guk Paeng, Nerissa U. Ko, J. Donald Easton Tags: Research Article Source Type: research

Quantitative Assessment of Mitral Inflow and Aortic Outflow Stroke Volumes by 3-Dimensional Real-time Full-Volume Color Flow Doppler Transthoracic Echocardiography: An In Vivo Study
Conclusions— Real-time 3D color flow Doppler quantification is feasible and accurate for measurement of mitral inflow and LVOT outflow stroke volumes over a range of hemodynamic conditions.
Source: Journal of Ultrasound in Medicine - December 26, 2014 Category: Radiology Authors: Shimada, E., Zhu, M., Kimura, S., Streiff, C., Houle, H., Datta, S., Sahn, D. J., Ashraf, M. Tags: Original Research Source Type: research

Safety and Tolerability of SonoVue ® in Patients with Large Artery Anterior Circulation Acute Stroke
CONCLUSIONSAccording to our study, SonoVue® can be safely administered to acute ischemic stroke patients with suspected anterior circulation LAO and/or inadequate temporal bone window.
Source: Journal of Neuroimaging - December 20, 2016 Category: Radiology Authors: Claudio Baracchini, Federica Viaro, Silvia Favaretto, Anna Palmieri, Caterina Kulyk, Francesco Causin, Filippo Farina, Enzo Ballotta Tags: Clinical Investigative Study Source Type: research

Stroke Mimics: The Quest for Leptomeningeal Anastomoses and Isolated Diffusion-Weigthed Mr Signal
Publication date: Available online 6 June 2018 Source:Seminars in Ultrasound, CT and MRI Author(s): Humberto Morales, Marshall Kong Stroke is caused by occlusion of a medium or large sized vessel in the brain. The treatment with either IV or IA thrombolysis is based on an accurate and time-sensitive diagnosis. On clinical and imaging grounds a number of entities – seizures, toxic-metabolic, infectious or demyelinating diseases - can mimic stroke. Identifying them is paramount as the treatment differs significantly. Prior imaging reviews have focused on the non-territorial distribution of these mimics. However, some impo...
Source: Seminars in Ultrasound, CT and MRI - June 9, 2018 Category: Radiology Source Type: research

Ultrasound elastography in the assessment of post-stroke muscle stiffness: a systematic review
ConclusionUltrasound elastography is a promising imaging technology for determining the muscle stiffness in stroke survivors with need for a standardized imaging protocol.
Source: Insights into Imaging - April 5, 2022 Category: Radiology Source Type: research