Results 1 to 10 of about 2,130,618 (384)

Magnetic Resonance Imaging [PDF]

open access: greenEuropean Neurology, 1989
All of the data published in the literature show that MR is more sensitive than CT in diagnosing cerebral ischemic lesions. This greater sensitivity is due to its ability to detect even the minimal changes in tissue water content which occur in the early phases of the infarct.
David San Martín
openalex   +3 more sources

Magnetic Resonance Imaging [PDF]

open access: yesPediatrics In Review, 1986
Magnetic resonance imaging is the newest of the imaging modalities available for the diagnosis of diseases of children. No ionizing radiation is used and most studies are performed without the administration of contrast material. FUNDAMENTALS OF MAGNETIC RESONANCE IMAGE FORMATION Physics The physics of ...
A S, Brody, C A, Gooding
  +7 more sources

Plaque Characteristics in Young Adults With Symptomatic Intracranial Atherosclerotic Stenosis: A Preliminary Study

open access: yesFrontiers in Neurology, 2022
PurposeTo determine how intracranial vascular wall and atherosclerosis plaque characteristics differ between young and old adults with sICAS.MethodsEighty-four consecutive patients with sICAS who underwent high-resolution magnetic resonance imaging ...
Ling Li   +10 more
doaj   +1 more source

Static and dynamic changes of intrinsic brain local connectivity in internet gaming disorder

open access: yesBMC Psychiatry, 2023
Background Studies have revealed that intrinsic neural activity varies over time. However, the temporal variability of brain local connectivity in internet gaming disorder (IGD) remains unknown. The purpose of this study was to explore the alterations of
Xiaoyu Niu   +10 more
doaj   +1 more source

Magnetic resonance temperature imaging [PDF]

open access: yesInternational Journal of Hyperthermia, 2005
Continuous, real-time, 3D temperature mapping during a hyperthermic procedure may provide (i) enhanced safety by visualizing temperature maps in and around the treated region, (ii) improved efficiency by adapting local energy deposition with feedback coupling algorithms and (iii) therapy end-points based on the accumulated thermal dose.
Denis de Senneville, Baudouin   +2 more
openaire   +8 more sources

Dynamic Altered Amplitude of Low-Frequency Fluctuations in Patients With Major Depressive Disorder

open access: yesFrontiers in Psychiatry, 2021
Background: Major depressive disorder (MDD) has demonstrated abnormalities of static intrinsic brain activity measured by amplitude of low-frequency fluctuation (ALFF).
Ruiping Zheng   +11 more
doaj   +1 more source

Magnetic resonance imaging features of bile duct adenoma

open access: yesFrontiers in Oncology, 2023
ObjectivesTo evaluate the magnetic resonance imaging (MRI) features of bile duct adenoma.MethodsThe data of 28 patients [with 32 pathologically confirmed bile duct adenomas, including 15 with malignant change (malignant group) and 17 without malignant ...
Mengyue Huang   +7 more
doaj   +1 more source

Outcomes of Cardiovascular Magnetic Resonance Imaging in Patients Recently Recovered From Coronavirus Disease 2019 (COVID-19)

open access: yesJAMA cardiology, 2020
Key Points Question What are the cardiovascular effects in unselected patients with recent coronavirus disease 2019 (COVID-19)? Findings In this cohort study including 100 patients recently recovered from COVID-19 identified from a COVID-19 test center ...
V. Puntmann   +11 more
semanticscholar   +1 more source

Evaluation of Amide Proton Transfer-Weighted Imaging for Risk Factors in Stage I Endometrial Cancer: A Comparison With Diffusion-Weighted Imaging and Diffusion Kurtosis Imaging

open access: yesFrontiers in Oncology, 2022
BackgroundEndometrial cancer (EC) is one of the most common gynecologic malignancies in clinical practice. This study aimed to compare the value of diffusion-weighted imaging (DWI), diffusion kurtosis imaging (DKI), and amide proton transfer-weighted ...
Xingxing Jin   +9 more
doaj   +1 more source

Assessment of Neuroprotective Effects of Low-Intensity Transcranial Ultrasound Stimulation in a Parkinson’s Disease Rat Model by Fractional Anisotropy and Relaxation Time T2∗ Value

open access: yesFrontiers in Neuroscience, 2021
Background: Low-intensity transcranial ultrasound (LITUS) may have a therapeutic effect on Parkinson’s disease (PD) patients to some extent. Fractional anisotropy (FA) and relaxation time T2∗ that indicate the integrity of fiber tracts and iron ...
Yanchao Dong   +8 more
doaj   +1 more source

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