Articles with "magnetic resonance" as a keyword



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Association of Myocardial Fibrosis and Stroke Volume by Cardiovascular Magnetic Resonance in Patients With Severe Aortic Stenosis With Outcome After Valve Replacement: The British Society of Cardiovascular Magnetic Resonance AS700 Study.

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Published in 2022 at "JAMA cardiology"

DOI: 10.1001/jamacardio.2022.0340

Abstract: Importance Low-flow severe aortic stenosis (AS) has higher mortality than severe AS with normal flow. The conventional definition of low-flow AS is an indexed stroke volume (SVi) by echocardiography less than 35 mL/m2. Cardiovascular magnetic… read more here.

Keywords: magnetic resonance; valve replacement; cmr; mortality ... See more keywords
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Variability in Ejection Fraction Measured By Echocardiography, Gated Single-Photon Emission Computed Tomography, and Cardiac Magnetic Resonance in Patients With Coronary Artery Disease and Left Ventricular Dysfunction

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Published in 2018 at "JAMA Network Open"

DOI: 10.1001/jamanetworkopen.2018.1456

Abstract: Key Points Question What is the variability in left ventricular ejection fraction (LVEF) as measured by different cardiac imaging modalities? Findings In this multicenter diagnostic study of 2032 patients with coronary artery disease and LVEF… read more here.

Keywords: patients coronary; ejection fraction; magnetic resonance; variability ... See more keywords
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Association Between Surgery Preference and Receipt in Ductal Carcinoma In Situ After Breast Magnetic Resonance Imaging

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Published in 2022 at "JAMA Network Open"

DOI: 10.1001/jamanetworkopen.2022.10331

Abstract: Key Points Question What factors are associated with surgery preference (wide local excision vs mastectomy) among a prospective cohort of women with newly diagnosed ductal carcinoma in situ (DCIS) before and after magnetic resonance imaging… read more here.

Keywords: magnetic resonance; surgery preference; ductal carcinoma; resonance imaging ... See more keywords
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Comparison of Outcomes of Ischemic Stroke Initially Imaged With Cranial Computed Tomography Alone vs Computed Tomography Plus Magnetic Resonance Imaging

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Published in 2022 at "JAMA Network Open"

DOI: 10.1001/jamanetworkopen.2022.19416

Abstract: Key Points Question Are clinical outcomes of patients with acute ischemic stroke imaged with initial computed tomography (CT) alone noninferior to those who had additional magnetic resonance imaging (MRI)? Findings In this propensity score–matched cohort… read more here.

Keywords: magnetic resonance; resonance imaging; computed tomography; tomography alone ... See more keywords
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Diagnostic Accuracy of Magnetic Resonance Imaging Measures of Brain Atrophy Across the Spectrum of Progressive Supranuclear Palsy and Corticobasal Degeneration

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Published in 2022 at "JAMA Network Open"

DOI: 10.1001/jamanetworkopen.2022.9588

Abstract: Key Points Question Can widely available atrophy measures on magnetic resonance imaging (MRI) increase diagnostic accuracy of progressive supranuclear palsy (PSP) and corticobasal degeneration (CBD)? Findings In this diagnostic study of 326 participants, different methods… read more here.

Keywords: magnetic resonance; resonance imaging; progressive supranuclear; atrophy ... See more keywords
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Multicenter External Validation of the Deep Pelvic Endometriosis Index Magnetic Resonance Imaging Score

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Published in 2023 at "JAMA Network Open"

DOI: 10.1001/jamanetworkopen.2023.11686

Abstract: Key Points Question Does the Deep Pelvic Endometriosis Index (dPEI) magnetic resonance imaging (MRI) score accurately predict operation time, hospital stay, and postoperative complications in a cohort of women undergoing surgery for deep pelvic endometriosis… read more here.

Keywords: magnetic resonance; deep pelvic; resonance imaging; endometriosis index ... See more keywords
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Incidence of Underlying Abnormal Findings on Routine Magnetic Resonance Imaging for Bell Palsy

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Published in 2023 at "JAMA Network Open"

DOI: 10.1001/jamanetworkopen.2023.9158

Abstract: Key Points Question What is the proportion of adult patients in whom magnetic resonance imaging (MRI) leads to correction of an initial clinical diagnosis of Bell palsy (BP)? Findings In this retrospective cohort study of… read more here.

Keywords: magnetic resonance; bell palsy; incidence underlying; resonance imaging ... See more keywords
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Magnetic Resonance Imaging Features of GABA-A Receptor Antibody-Mediated Encephalitis.

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Published in 2023 at "JAMA neurology"

DOI: 10.1001/jamaneurol.2022.5197

Abstract: This case report describes a patient with status epilepticus and neuroimaging features of fleeting T2 fluid-attenuated inversion recovery hyperintense lesions on magnetic resonance imaging. read more here.

Keywords: magnetic resonance; features gaba; resonance imaging; imaging features ... See more keywords
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Lentiform Fork Sign on Magnetic Resonance Imaging After Methamphetamine and Alcohol Misuse.

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Published in 2023 at "JAMA neurology"

DOI: 10.1001/jamaneurol.2023.0723

Abstract: This case report describes a patient with a 3-day history of acute blindness after using alcohol and methamphetamine for 3 consecutive nights before onset of visual impairment. read more here.

Keywords: magnetic resonance; fork sign; resonance imaging; sign magnetic ... See more keywords
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Assessing Brain Metabolism With 7-T Proton Magnetic Resonance Spectroscopy in Patients With First-Episode Psychosis

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Published in 2019 at "JAMA Psychiatry"

DOI: 10.1001/jamapsychiatry.2018.3637

Abstract: Importance The use of high-field magnetic resonance spectroscopy (MRS) in multiple brain regions of a large population of human participants facilitates in vivo study of localized or diffusely altered brain metabolites in patients with first-episode… read more here.

Keywords: resonance spectroscopy; magnetic resonance; first episode; patients first ... See more keywords
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A Molecular Budget for a Peatland Based Upon 13C Solid‐State Nuclear Magnetic Resonance

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Published in 2018 at "Journal of Geophysical Research"

DOI: 10.1002/2017jg004312

Abstract: Peatlands can accumulate organic matter into long‐term carbon (C) storage within the soil profile. This study used solid‐state 13C nuclear magnetic resonance (13C‐NMR) to investigate the transit of organic C through a peatland ecosystem to… read more here.

Keywords: solid state; nuclear magnetic; matter; magnetic resonance ... See more keywords