Results 11 to 20 of about 2,651,897 (274)
Frontiers 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
Frontiers 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
Standardized cardiovascular magnetic resonance imaging (CMR) protocols: 2020 update
Journal of Cardiovascular Magnetic Resonance, 2020 This document is an update to the 2013 publication of the Society for Cardiovascular Magnetic Resonance (SCMR) Board of Trustees Task Force on Standardized Protocols.
C. Kramer +5 more
semanticscholar +1 more source
BMC Medical Informatics and Decision Making, 2020 Background The present study aims to investigate the role of histogram analysis of intravoxel incoherent motion (IVIM) in the differential diagnosis of benign and malignant breast lesions.
Ya-Nan Jin +5 more
doaj +1 more source
Autonomous Magnetic Resonance Imaging [PDF]
Magnetic Resonance Imaging, 2020 AbstractAccess to Magnetic Resonance Imaging (MRI) across developing countries from being prohibitive to scarcely available. For example, eleven countries in Africa have no scanners. One critical limitation is the absence of skilled manpower required for MRI usage. Some of these challenges can be mitigated using autonomous MRI (AMRI) operation. In this
Ravi, Keerthi Sravan, Geethanath, Sairam
openaire +3 more sources
Iterative Self-consistent Parallel Magnetic Resonance Imaging Reconstruction based on Nonlocal Low-Rank Regularization [PDF]
Magnetic Resonance Imaging, vol. 88, pp. 62-75, 2022, 2021 Iterative self-consistent parallel imaging reconstruction (SPIRiT) is an effective self-calibrated reconstruction model for parallel magnetic resonance imaging (PMRI). The joint L1 norm of wavelet coefficients and joint total variation (TV) regularization terms are incorporated into the SPIRiT model to improve the reconstruction performance.
arxiv +1 more source
Brain magnetic resonance imaging with contrast dependent on blood oxygenation.
Proceedings of the National Academy of Sciences of the United States of America, 1990 Paramagnetic deoxyhemoglobin in venous blood is a naturally occurring contrast agent for magnetic resonance imaging (MRI). By accentuating the effects of this agent through the use of gradient-echo techniques in high fields, we demonstrate in vivo images
Seijiro Ogawa +3 more
semanticscholar +1 more source
Linear magnetic resonance imaging measurements of the hippocampal formation differ in young versus old dogs [PDF]
, 2019 Age-related hippocampal formation (HF) atrophy has been documented on MRI studies using volumetric analysis and visual rating scales.This retrospective cross-sectional study aimed to compare linear MRI measurements of the HF between young (1–3 years) and
Cherubini, G B +5 more
core +2 more sources
Frontiers in Psychiatry, 2022 BackgroundMajor depressive disorder (MDD) is associated with dysfunction of the reward system. As an important node in the reward system, the resting-state functional connectivity of the nucleus accumbens (NAc) is related to the etiology of MDD. However,
Bingqian Zhou +10 more
doaj +1 more source
Dynamic magnetic resonance imaging of human brain activity during primary sensory stimulation.
Proceedings of the National Academy of Sciences of the United States of America, 1992 Neuronal activity causes local changes in cerebral blood flow, blood volume, and blood oxygenation. Magnetic resonance imaging (MRI) techniques sensitive to changes in cerebral blood flow and blood oxygenation were developed by high-speed echo planar ...
Ken K. Kwong +12 more
semanticscholar +1 more source