Left Atrial Enlargement Could Be Detected on Extended Computed Tomography Angiography

To the Editor In a secondary analysis of the New Approach Rivaroxaban Inhibition of Factor Xa in a Global Trial Versus ASA to Prevent Embolism in Embolic Stroke of Undetermined Source trial, Healey and colleagues determined that for patients with embolic stroke of undetermined source and left atrial enlargement rivaroxaban treatment was associated with a 74% reduction in recurrent stroke. The authors suggest that left atrial enlargement could become a new determinant in secondary stroke prevention.
Source: JAMA Neurology - Category: Neurology Source Type: research

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AbstractPurposeThe interdisciplinary German guidelines for the diagnosis and treatment of internal carotid artery stenosis (ICAS) recommend a multiparametric approach for the sonographic grading of extracranial ICAS. The aim of this study is to evaluate the interrater and intermethod agreement of this elaborated sonographic approach with different angiographic modalities.MethodsPatients with extracranial ICAS were examined twice with colour-coded duplex sonography (CDS) by two experienced vascular neurologists. Each of the ten criteria and the resulting stenotic value were assessed. Grading of ICAS based on the multiparame...
Source: Neuroradiology - Category: Radiology Source Type: research
Authors: Opolski MP, Schumacher SP, Verouden NJW, van Diemen PA, Borucki BA, Sprengers R, Everaars H, de Winter RW, van Rossum AC, Nap A, Bom MJ, Knaapen P Abstract OBJECTIVES: The effect of intraprocedural coronary computed tomography angiography (coronary CTA) guidance on percutaneous coronary intervention (PCI) is unknown. We sought to determine the influence of CTA guidance on procedural strategies and immediate angiographic outcomes of PCI. METHODS: Sixty patients were randomized to CTA-guided PCI (29 patients, 36 lesions) or angiography-guided PCI (31 patients, 39 lesions). To enable hands-free manipulati...
Source: The Journal of Invasive Cardiology - Category: Cardiology Tags: J Invasive Cardiol Source Type: research
By LUKE OAKDEN-RAYNER In surprising news this week, CMS (the Centres for Medicare &Medicaid Services) in the USA approved the first reimbursement for AI augmented medical care. Viz.ai have a deep learning model which identifies signs of stroke on brain CT and automatically contacts the neurointerventionalist, bypassing the first read normally performed by a general radiologist. From their press material: Viz.ai demonstrated to CMS a significant reduction in time to treatment and improved clinical outcomes in patients suffering a stroke. Viz LVO has been granted a New Technology Add on Payment of up to&nbs...
Source: The Health Care Blog - Category: Consumer Health News Authors: Tags: Artificial Intelligence Health Tech AI Luke Oakden-Rayner Reimbursement Source Type: blogs
Authors: Luzzi S, Gragnaniello C, Marasco S, Lucifero AG, Del Maestro M, Bellantoni G, Galzio R Abstract Extrinsic compression of the subaxial vertebral artery (VA) may cause rotational occlusion syndrome (ROS) and contribute to vertebrobasilar insufficiency potentially leading to symptoms and in severe cases, to posterior circulation strokes. The present literature review aimed to report the main clinical findings, diagnostic work-up, and surgical management of the subaxial VA-ROS, the diagnosis of which can be difficult and is often underestimated. An illustrative case is also presented. A thorough literature sea...
Source: Asian Spine Journal - Category: Orthopaedics Tags: Asian Spine J Source Type: research
ConclusionPerforming complementary CT techniques such as CTA and CTP for the assessment of acute stroke increases total radiation exposure. Hence, the revised DRLs for the complete protocol are required, where our local DRLs may help as benchmarks.
Source: Neuroradiology - Category: Radiology Source Type: research
ConclusionCarotid webs with atherosclerosis have no known etiological factors and are rarely reported. Thus, carotid webs could be easily confused with ulcerations on the surface of the atherosclerosis plaque. The diagnosis could be difficult and effective management remains indeterminate. Moreover, prompt recognition of this disease is key to correct treatment and management. Hence, this case report and the relevant data in the literature could contribute to the improvement of the diagnosis and treatment of this disease.
Source: Journal of Medical Case Reports - Category: General Medicine Source Type: research
Modified Simpson’s rule for LVEF Modified Simpson’s rule for LVEF Modified Simpson’s rule for LVEF (left ventricular ejection fraction) is used not only in echocardiography, but also in cardiac magnetic resonance (CMR) imaging, left ventricular angiography and computed tomography (CT). Basic assumption in Simpson’s rule is that the shape of the left ventricular cavity is a composite of a cylinder (from base to the level of the mitral valve), a truncated cone from mitral valve level to the level of the papillary muscles and a cone from there to the apex [1]. Volume of the cylinder: Am x L/3 Volume o...
Source: Cardiophile MD - Category: Cardiology Authors: Tags: Angiography and Interventions Cardiac CT scan Cardiac Magnetic Resonance imaging Echocardiography Source Type: blogs
Conclusion The single-phase CTA-based visual collateral score scale and regional leptomeningeal score scale can be used as the imaging evidence for the evaluation of collateral flow in AIS patients in the majority of grassroots hospitals where DSA is difficult to carry out.
Source: Journal of Computer Assisted Tomography - Category: Radiology Tags: NEURORADIOLOGY Source Type: research
We report a case of a young woman with a left middle cerebral artery (MCA) ischemic stroke. The patient had history of HIV-1 infection, with periods of therapeutic non-compliance. Initial computed tomography (CT) imaging studies showed stenosis of the M1 segment of the left MCA, and magnetic resonance imaging (MRI) confirmed infarction of the MCA territory. Serial transcranial Doppler ultrasound revealed progressive occlusion of the MCA and stenosis of the left anterior cerebral artery. Systemic investigation for other causes of stroke was normal. Lumbar puncture revealed a mildly inflammatory cerebrospinal fluid, and HSV-...
Source: Journal of NeuroVirology - Category: Neurology Source Type: research
Conclusion: The signal intensity of the intracranial major arteries, including the ACA, MCA, and PCA, on preoperative 3D-TOF MRA may identify adult MMD patients at higher risk for CHP after direct revascularization surgery.Cerebrovasc Dis
Source: Cerebrovascular Diseases - Category: Neurology Source Type: research
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